Modified:
websites/production/commons/content/proper/commons-logging/apidocs/src-html/org/apache/commons/logging/impl/WeakHashtable.html
==============================================================================
---
websites/production/commons/content/proper/commons-logging/apidocs/src-html/org/apache/commons/logging/impl/WeakHashtable.html
(original)
+++
websites/production/commons/content/proper/commons-logging/apidocs/src-html/org/apache/commons/logging/impl/WeakHashtable.html
Thu Jul 4 12:10:51 2024
@@ -1,7 +1,7 @@
<!DOCTYPE HTML>
<html lang="en">
<head>
-<!-- Generated by javadoc (21) -->
+<!-- Generated by javadoc (17) -->
<title>Source code</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<meta name="description" content="source: package:
org.apache.commons.logging.impl, class: WeakHashtable">
@@ -43,477 +43,486 @@
<span class="source-line-no">030</span><span id="line-30">import
java.util.Set;</span>
<span class="source-line-no">031</span><span id="line-31"></span>
<span class="source-line-no">032</span><span id="line-32">/**</span>
-<span class="source-line-no">033</span><span id="line-33"> * Implementation of
{@code Hashtable} that uses {@code WeakReference}'s</span>
+<span class="source-line-no">033</span><span id="line-33"> * Implements {@code
Hashtable} to use {@code WeakReference}'s</span>
<span class="source-line-no">034</span><span id="line-34"> * to hold its keys
thus allowing them to be reclaimed by the garbage collector.</span>
<span class="source-line-no">035</span><span id="line-35"> * The associated
values are retained using strong references.</span>
<span class="source-line-no">036</span><span id="line-36"> * <p></span>
<span class="source-line-no">037</span><span id="line-37"> * This class
follows the semantics of {@code Hashtable} as closely as</span>
<span class="source-line-no">038</span><span id="line-38"> * possible. It
therefore does not accept null values or keys.</span>
-<span class="source-line-no">039</span><span id="line-39"> * <p></span>
-<span class="source-line-no">040</span><span id="line-40"> *
<strong>Note:</strong></span>
-<span class="source-line-no">041</span><span id="line-41"> * This is
<em>not</em> intended to be a general purpose hash table
replacement.</span>
-<span class="source-line-no">042</span><span id="line-42"> * This
implementation is also tuned towards a particular purpose: for use as a
replacement</span>
-<span class="source-line-no">043</span><span id="line-43"> * for {@code
Hashtable} in {@code LogFactory}. This application requires</span>
-<span class="source-line-no">044</span><span id="line-44"> * good liveliness
for {@code get} and {@code put}. Various tradeoffs</span>
-<span class="source-line-no">045</span><span id="line-45"> * have been made
with this in mind.</span>
-<span class="source-line-no">046</span><span id="line-46"> * <p></span>
-<span class="source-line-no">047</span><span id="line-47"> *
<strong>Usage:</strong> typical use case is as a drop-in
replacement</span>
-<span class="source-line-no">048</span><span id="line-48"> * for the {@code
Hashtable} used in {@code LogFactory} for J2EE environments</span>
-<span class="source-line-no">049</span><span id="line-49"> * running 1.3+
JVMs. Use of this class <i>in most cases</i> (see below) will</span>
-<span class="source-line-no">050</span><span id="line-50"> * allow class
loaders to be collected by the garbage collector without the need</span>
-<span class="source-line-no">051</span><span id="line-51"> * to call {@link
org.apache.commons.logging.LogFactory#release(ClassLoader)
LogFactory.release(ClassLoader)}.</span>
-<span class="source-line-no">052</span><span id="line-52"> * <p></span>
-<span class="source-line-no">053</span><span id="line-53"> * {@code
org.apache.commons.logging.LogFactory} checks whether this class</span>
-<span class="source-line-no">054</span><span id="line-54"> * can be supported
by the current JVM, and if so then uses it to store</span>
-<span class="source-line-no">055</span><span id="line-55"> * references to the
{@code LogFactory} implementation it loads</span>
-<span class="source-line-no">056</span><span id="line-56"> * (rather than
using a standard Hashtable instance).</span>
-<span class="source-line-no">057</span><span id="line-57"> * Having this class
used instead of {@code Hashtable} solves</span>
-<span class="source-line-no">058</span><span id="line-58"> * certain issues
related to dynamic reloading of applications in J2EE-style</span>
-<span class="source-line-no">059</span><span id="line-59"> * environments.
However this class requires Java 1.3 or later (due to its use</span>
-<span class="source-line-no">060</span><span id="line-60"> * of {@link
java.lang.ref.WeakReference} and associates).</span>
-<span class="source-line-no">061</span><span id="line-61"> * And by the way,
this extends {@code Hashtable} rather than {@code HashMap}</span>
-<span class="source-line-no">062</span><span id="line-62"> * for backwards
compatibility reasons. See the documentation</span>
-<span class="source-line-no">063</span><span id="line-63"> * for method {@code
LogFactory.createFactoryStore} for more details.</span>
-<span class="source-line-no">064</span><span id="line-64"> * <p></span>
-<span class="source-line-no">065</span><span id="line-65"> * The reason all
this is necessary is due to a issue which</span>
-<span class="source-line-no">066</span><span id="line-66"> * arises during hot
deploy in a J2EE-like containers.</span>
-<span class="source-line-no">067</span><span id="line-67"> * Each component
running in the container owns one or more class loaders; when</span>
-<span class="source-line-no">068</span><span id="line-68"> * the component
loads a LogFactory instance via the component class loader</span>
-<span class="source-line-no">069</span><span id="line-69"> * a reference to it
gets stored in the static LogFactory.factories member,</span>
-<span class="source-line-no">070</span><span id="line-70"> * keyed by the
component's class loader so different components don't</span>
-<span class="source-line-no">071</span><span id="line-71"> * stomp on each
other. When the component is later unloaded, the container</span>
-<span class="source-line-no">072</span><span id="line-72"> * sets the
component's class loader to null with the intent that all the</span>
-<span class="source-line-no">073</span><span id="line-73"> * component's
classes get garbage-collected. However there's still a</span>
-<span class="source-line-no">074</span><span id="line-74"> * reference to the
component's class loader from a key in the "global"</span>
-<span class="source-line-no">075</span><span id="line-75"> * {@code
LogFactory}'s factories member! If {@code LogFactory.release()}</span>
-<span class="source-line-no">076</span><span id="line-76"> * is called
whenever component is unloaded, the class loaders will be correctly</span>
-<span class="source-line-no">077</span><span id="line-77"> * garbage
collected; this <i>should</i> be done by any container that</span>
-<span class="source-line-no">078</span><span id="line-78"> * bundles
commons-logging by default. However, holding the class loader</span>
-<span class="source-line-no">079</span><span id="line-79"> * references weakly
ensures that the class loader will be garbage collected</span>
-<span class="source-line-no">080</span><span id="line-80"> * without the
container performing this step.</span>
-<span class="source-line-no">081</span><span id="line-81"> * <p></span>
-<span class="source-line-no">082</span><span id="line-82"> *
<strong>Limitations:</strong></span>
-<span class="source-line-no">083</span><span id="line-83"> * There is still
one (unusual) scenario in which a component will not</span>
-<span class="source-line-no">084</span><span id="line-84"> * be correctly
unloaded without an explicit release. Though weak references</span>
-<span class="source-line-no">085</span><span id="line-85"> * are used for its
keys, it is necessary to use strong references for its values.</span>
+<span class="source-line-no">039</span><span id="line-39"> * </p></span>
+<span class="source-line-no">040</span><span id="line-40"> * <p></span>
+<span class="source-line-no">041</span><span id="line-41"> *
<strong>Note:</strong></span>
+<span class="source-line-no">042</span><span id="line-42"> * This is
<em>not</em> intended to be a general purpose hash table
replacement.</span>
+<span class="source-line-no">043</span><span id="line-43"> * This
implementation is also tuned towards a particular purpose: for use as a
replacement</span>
+<span class="source-line-no">044</span><span id="line-44"> * for {@code
Hashtable} in {@code LogFactory}. This application requires</span>
+<span class="source-line-no">045</span><span id="line-45"> * good liveliness
for {@code get} and {@code put}. Various tradeoffs</span>
+<span class="source-line-no">046</span><span id="line-46"> * have been made
with this in mind.</span>
+<span class="source-line-no">047</span><span id="line-47"> * </p></span>
+<span class="source-line-no">048</span><span id="line-48"> * <p></span>
+<span class="source-line-no">049</span><span id="line-49"> *
<strong>Usage:</strong> typical use case is as a drop-in
replacement</span>
+<span class="source-line-no">050</span><span id="line-50"> * for the {@code
Hashtable} used in {@code LogFactory} for J2EE environments</span>
+<span class="source-line-no">051</span><span id="line-51"> * running 1.3+
JVMs. Use of this class <i>in most cases</i> (see below) will</span>
+<span class="source-line-no">052</span><span id="line-52"> * allow class
loaders to be collected by the garbage collector without the need</span>
+<span class="source-line-no">053</span><span id="line-53"> * to call {@link
org.apache.commons.logging.LogFactory#release(ClassLoader)
LogFactory.release(ClassLoader)}.</span>
+<span class="source-line-no">054</span><span id="line-54"> * </p></span>
+<span class="source-line-no">055</span><span id="line-55"> * <p></span>
+<span class="source-line-no">056</span><span id="line-56"> * {@code
org.apache.commons.logging.LogFactory} checks whether this class</span>
+<span class="source-line-no">057</span><span id="line-57"> * can be supported
by the current JVM, and if so then uses it to store</span>
+<span class="source-line-no">058</span><span id="line-58"> * references to the
{@code LogFactory} implementation it loads</span>
+<span class="source-line-no">059</span><span id="line-59"> * (rather than
using a standard Hashtable instance).</span>
+<span class="source-line-no">060</span><span id="line-60"> * Having this class
used instead of {@code Hashtable} solves</span>
+<span class="source-line-no">061</span><span id="line-61"> * certain issues
related to dynamic reloading of applications in J2EE-style</span>
+<span class="source-line-no">062</span><span id="line-62"> * environments.
However this class requires Java 1.3 or later (due to its use</span>
+<span class="source-line-no">063</span><span id="line-63"> * of {@link
java.lang.ref.WeakReference} and associates).</span>
+<span class="source-line-no">064</span><span id="line-64"> * And by the way,
this extends {@code Hashtable} rather than {@code HashMap}</span>
+<span class="source-line-no">065</span><span id="line-65"> * for backwards
compatibility reasons. See the documentation</span>
+<span class="source-line-no">066</span><span id="line-66"> * for method {@code
LogFactory.createFactoryStore} for more details.</span>
+<span class="source-line-no">067</span><span id="line-67"> * </p></span>
+<span class="source-line-no">068</span><span id="line-68"> * <p></span>
+<span class="source-line-no">069</span><span id="line-69"> * The reason all
this is necessary is due to a issue which</span>
+<span class="source-line-no">070</span><span id="line-70"> * arises during hot
deploy in a J2EE-like containers.</span>
+<span class="source-line-no">071</span><span id="line-71"> * Each component
running in the container owns one or more class loaders; when</span>
+<span class="source-line-no">072</span><span id="line-72"> * the component
loads a LogFactory instance via the component class loader</span>
+<span class="source-line-no">073</span><span id="line-73"> * a reference to it
gets stored in the static LogFactory.factories member,</span>
+<span class="source-line-no">074</span><span id="line-74"> * keyed by the
component's class loader so different components don't</span>
+<span class="source-line-no">075</span><span id="line-75"> * stomp on each
other. When the component is later unloaded, the container</span>
+<span class="source-line-no">076</span><span id="line-76"> * sets the
component's class loader to null with the intent that all the</span>
+<span class="source-line-no">077</span><span id="line-77"> * component's
classes get garbage-collected. However there's still a</span>
+<span class="source-line-no">078</span><span id="line-78"> * reference to the
component's class loader from a key in the "global"</span>
+<span class="source-line-no">079</span><span id="line-79"> * {@code
LogFactory}'s factories member! If {@code LogFactory.release()}</span>
+<span class="source-line-no">080</span><span id="line-80"> * is called
whenever component is unloaded, the class loaders will be correctly</span>
+<span class="source-line-no">081</span><span id="line-81"> * garbage
collected; this <i>should</i> be done by any container that</span>
+<span class="source-line-no">082</span><span id="line-82"> * bundles
commons-logging by default. However, holding the class loader</span>
+<span class="source-line-no">083</span><span id="line-83"> * references weakly
ensures that the class loader will be garbage collected</span>
+<span class="source-line-no">084</span><span id="line-84"> * without the
container performing this step.</span>
+<span class="source-line-no">085</span><span id="line-85"> * </p></span>
<span class="source-line-no">086</span><span id="line-86"> * <p></span>
-<span class="source-line-no">087</span><span id="line-87"> * If the abstract
class {@code LogFactory} is</span>
-<span class="source-line-no">088</span><span id="line-88"> * loaded by the
container class loader but a subclass of</span>
-<span class="source-line-no">089</span><span id="line-89"> * {@code
LogFactory} [LogFactory1] is loaded by the component's</span>
-<span class="source-line-no">090</span><span id="line-90"> * class loader and
an instance stored in the static map associated with the</span>
-<span class="source-line-no">091</span><span id="line-91"> * base LogFactory
class, then there is a strong reference from the LogFactory</span>
-<span class="source-line-no">092</span><span id="line-92"> * class to the
LogFactory1 instance (as normal) and a strong reference from</span>
-<span class="source-line-no">093</span><span id="line-93"> * the LogFactory1
instance to the component class loader via</span>
-<span class="source-line-no">094</span><span id="line-94"> * {@code
getClass().getClassLoader()}. This chain of references will prevent</span>
-<span class="source-line-no">095</span><span id="line-95"> * collection of the
child class loader.</span>
-<span class="source-line-no">096</span><span id="line-96"> * <p></span>
-<span class="source-line-no">097</span><span id="line-97"> * Such a situation
occurs when the commons-logging.jar is</span>
-<span class="source-line-no">098</span><span id="line-98"> * loaded by a
parent class loader (e.g. a server level class loader in a</span>
-<span class="source-line-no">099</span><span id="line-99"> * servlet
container) and a custom {@code LogFactory} implementation is</span>
-<span class="source-line-no">100</span><span id="line-100"> * loaded by a
child class loader (e.g. a web app class loader).</span>
-<span class="source-line-no">101</span><span id="line-101"> * <p></span>
-<span class="source-line-no">102</span><span id="line-102"> * To avoid this
scenario, ensure</span>
-<span class="source-line-no">103</span><span id="line-103"> * that any custom
LogFactory subclass is loaded by the same class loader as</span>
-<span class="source-line-no">104</span><span id="line-104"> * the base {@code
LogFactory}. Creating custom LogFactory subclasses is,</span>
-<span class="source-line-no">105</span><span id="line-105"> * however, rare.
The standard LogFactoryImpl class should be sufficient</span>
-<span class="source-line-no">106</span><span id="line-106"> * for most or all
users.</span>
-<span class="source-line-no">107</span><span id="line-107"> *</span>
-<span class="source-line-no">108</span><span id="line-108"> * @since 1.1</span>
-<span class="source-line-no">109</span><span id="line-109"> * @deprecated No
longer used, will be removed in 2.0.</span>
-<span class="source-line-no">110</span><span id="line-110"> */</span>
-<span class="source-line-no">111</span><span id="line-111">@Deprecated</span>
-<span class="source-line-no">112</span><span id="line-112">public final class
WeakHashtable extends Hashtable {</span>
-<span class="source-line-no">113</span><span id="line-113"></span>
-<span class="source-line-no">114</span><span id="line-114"> /** Entry
implementation */</span>
-<span class="source-line-no">115</span><span id="line-115"> private final
static class Entry implements Map.Entry {</span>
-<span class="source-line-no">116</span><span id="line-116"></span>
-<span class="source-line-no">117</span><span id="line-117"> private
final Object key;</span>
-<span class="source-line-no">118</span><span id="line-118"> private
final Object value;</span>
-<span class="source-line-no">119</span><span id="line-119"></span>
-<span class="source-line-no">120</span><span id="line-120"> private
Entry(final Object key, final Object value) {</span>
-<span class="source-line-no">121</span><span id="line-121">
this.key = key;</span>
-<span class="source-line-no">122</span><span id="line-122">
this.value = value;</span>
-<span class="source-line-no">123</span><span id="line-123"> }</span>
-<span class="source-line-no">124</span><span id="line-124"></span>
-<span class="source-line-no">125</span><span id="line-125">
@Override</span>
-<span class="source-line-no">126</span><span id="line-126"> public
boolean equals(final Object o) {</span>
-<span class="source-line-no">127</span><span id="line-127"> boolean
result = false;</span>
-<span class="source-line-no">128</span><span id="line-128"> if (o
instanceof Map.Entry) {</span>
-<span class="source-line-no">129</span><span id="line-129">
final Map.Entry entry = (Map.Entry) o;</span>
-<span class="source-line-no">130</span><span id="line-130">
result = (getKey()==null ?</span>
-<span class="source-line-no">131</span><span id="line-131">
entry.getKey() == null :</span>
-<span class="source-line-no">132</span><span id="line-132">
getKey().equals(entry.getKey())) &&</span>
-<span class="source-line-no">133</span><span id="line-133">
(getValue()==null ?</span>
-<span class="source-line-no">134</span><span id="line-134">
entry.getValue() == null :</span>
-<span class="source-line-no">135</span><span id="line-135">
getValue().equals(entry.getValue()));</span>
-<span class="source-line-no">136</span><span id="line-136"> }</span>
-<span class="source-line-no">137</span><span id="line-137"> return
result;</span>
-<span class="source-line-no">138</span><span id="line-138"> }</span>
-<span class="source-line-no">139</span><span id="line-139"></span>
-<span class="source-line-no">140</span><span id="line-140">
@Override</span>
-<span class="source-line-no">141</span><span id="line-141"> public
Object getKey() {</span>
-<span class="source-line-no">142</span><span id="line-142"> return
key;</span>
-<span class="source-line-no">143</span><span id="line-143"> }</span>
-<span class="source-line-no">144</span><span id="line-144"></span>
-<span class="source-line-no">145</span><span id="line-145">
@Override</span>
-<span class="source-line-no">146</span><span id="line-146"> public
Object getValue() {</span>
-<span class="source-line-no">147</span><span id="line-147"> return
value;</span>
-<span class="source-line-no">148</span><span id="line-148"> }</span>
-<span class="source-line-no">149</span><span id="line-149"></span>
-<span class="source-line-no">150</span><span id="line-150">
@Override</span>
-<span class="source-line-no">151</span><span id="line-151"> public int
hashCode() {</span>
-<span class="source-line-no">152</span><span id="line-152"> return
(getKey()==null ? 0 : getKey().hashCode()) ^</span>
-<span class="source-line-no">153</span><span id="line-153">
(getValue()==null ? 0 : getValue().hashCode());</span>
-<span class="source-line-no">154</span><span id="line-154"> }</span>
-<span class="source-line-no">155</span><span id="line-155"></span>
-<span class="source-line-no">156</span><span id="line-156">
@Override</span>
-<span class="source-line-no">157</span><span id="line-157"> public
Object setValue(final Object value) {</span>
-<span class="source-line-no">158</span><span id="line-158"> throw
new UnsupportedOperationException("Entry.setValue is not supported.");</span>
-<span class="source-line-no">159</span><span id="line-159"> }</span>
-<span class="source-line-no">160</span><span id="line-160"> }</span>
-<span class="source-line-no">161</span><span id="line-161"></span>
-<span class="source-line-no">162</span><span id="line-162"> /** Wrapper
giving correct symantics for equals and hash code */</span>
-<span class="source-line-no">163</span><span id="line-163"> private final
static class Referenced {</span>
+<span class="source-line-no">087</span><span id="line-87"> *
<strong>Limitations:</strong></span>
+<span class="source-line-no">088</span><span id="line-88"> * There is still
one (unusual) scenario in which a component will not</span>
+<span class="source-line-no">089</span><span id="line-89"> * be correctly
unloaded without an explicit release. Though weak references</span>
+<span class="source-line-no">090</span><span id="line-90"> * are used for its
keys, it is necessary to use strong references for its values.</span>
+<span class="source-line-no">091</span><span id="line-91"> * </p></span>
+<span class="source-line-no">092</span><span id="line-92"> * <p></span>
+<span class="source-line-no">093</span><span id="line-93"> * If the abstract
class {@code LogFactory} is</span>
+<span class="source-line-no">094</span><span id="line-94"> * loaded by the
container class loader but a subclass of</span>
+<span class="source-line-no">095</span><span id="line-95"> * {@code
LogFactory} [LogFactory1] is loaded by the component's</span>
+<span class="source-line-no">096</span><span id="line-96"> * class loader and
an instance stored in the static map associated with the</span>
+<span class="source-line-no">097</span><span id="line-97"> * base LogFactory
class, then there is a strong reference from the LogFactory</span>
+<span class="source-line-no">098</span><span id="line-98"> * class to the
LogFactory1 instance (as normal) and a strong reference from</span>
+<span class="source-line-no">099</span><span id="line-99"> * the LogFactory1
instance to the component class loader via</span>
+<span class="source-line-no">100</span><span id="line-100"> * {@code
getClass().getClassLoader()}. This chain of references will prevent</span>
+<span class="source-line-no">101</span><span id="line-101"> * collection of
the child class loader.</span>
+<span class="source-line-no">102</span><span id="line-102"> * </p></span>
+<span class="source-line-no">103</span><span id="line-103"> * <p></span>
+<span class="source-line-no">104</span><span id="line-104"> * Such a situation
occurs when the commons-logging.jar is</span>
+<span class="source-line-no">105</span><span id="line-105"> * loaded by a
parent class loader (e.g. a server level class loader in a</span>
+<span class="source-line-no">106</span><span id="line-106"> * servlet
container) and a custom {@code LogFactory} implementation is</span>
+<span class="source-line-no">107</span><span id="line-107"> * loaded by a
child class loader (e.g. a web app class loader).</span>
+<span class="source-line-no">108</span><span id="line-108"> * </p></span>
+<span class="source-line-no">109</span><span id="line-109"> * <p></span>
+<span class="source-line-no">110</span><span id="line-110"> * To avoid this
scenario, ensure</span>
+<span class="source-line-no">111</span><span id="line-111"> * that any custom
LogFactory subclass is loaded by the same class loader as</span>
+<span class="source-line-no">112</span><span id="line-112"> * the base {@code
LogFactory}. Creating custom LogFactory subclasses is,</span>
+<span class="source-line-no">113</span><span id="line-113"> * however, rare.
The standard LogFactoryImpl class should be sufficient</span>
+<span class="source-line-no">114</span><span id="line-114"> * for most or all
users.</span>
+<span class="source-line-no">115</span><span id="line-115"> * </p></span>
+<span class="source-line-no">116</span><span id="line-116"> *</span>
+<span class="source-line-no">117</span><span id="line-117"> * @since 1.1</span>
+<span class="source-line-no">118</span><span id="line-118"> * @deprecated No
longer used, will be removed in 2.0.</span>
+<span class="source-line-no">119</span><span id="line-119"> */</span>
+<span class="source-line-no">120</span><span id="line-120">@Deprecated</span>
+<span class="source-line-no">121</span><span id="line-121">public final class
WeakHashtable extends Hashtable {</span>
+<span class="source-line-no">122</span><span id="line-122"></span>
+<span class="source-line-no">123</span><span id="line-123"> /** Entry
implementation */</span>
+<span class="source-line-no">124</span><span id="line-124"> private final
static class Entry implements Map.Entry {</span>
+<span class="source-line-no">125</span><span id="line-125"></span>
+<span class="source-line-no">126</span><span id="line-126"> private
final Object key;</span>
+<span class="source-line-no">127</span><span id="line-127"> private
final Object value;</span>
+<span class="source-line-no">128</span><span id="line-128"></span>
+<span class="source-line-no">129</span><span id="line-129"> private
Entry(final Object key, final Object value) {</span>
+<span class="source-line-no">130</span><span id="line-130">
this.key = key;</span>
+<span class="source-line-no">131</span><span id="line-131">
this.value = value;</span>
+<span class="source-line-no">132</span><span id="line-132"> }</span>
+<span class="source-line-no">133</span><span id="line-133"></span>
+<span class="source-line-no">134</span><span id="line-134">
@Override</span>
+<span class="source-line-no">135</span><span id="line-135"> public
boolean equals(final Object o) {</span>
+<span class="source-line-no">136</span><span id="line-136"> boolean
result = false;</span>
+<span class="source-line-no">137</span><span id="line-137"> if (o
instanceof Map.Entry) {</span>
+<span class="source-line-no">138</span><span id="line-138">
final Map.Entry entry = (Map.Entry) o;</span>
+<span class="source-line-no">139</span><span id="line-139">
result = (getKey()==null ?</span>
+<span class="source-line-no">140</span><span id="line-140">
entry.getKey() == null :</span>
+<span class="source-line-no">141</span><span id="line-141">
getKey().equals(entry.getKey())) &&</span>
+<span class="source-line-no">142</span><span id="line-142">
(getValue()==null ?</span>
+<span class="source-line-no">143</span><span id="line-143">
entry.getValue() == null :</span>
+<span class="source-line-no">144</span><span id="line-144">
getValue().equals(entry.getValue()));</span>
+<span class="source-line-no">145</span><span id="line-145"> }</span>
+<span class="source-line-no">146</span><span id="line-146"> return
result;</span>
+<span class="source-line-no">147</span><span id="line-147"> }</span>
+<span class="source-line-no">148</span><span id="line-148"></span>
+<span class="source-line-no">149</span><span id="line-149">
@Override</span>
+<span class="source-line-no">150</span><span id="line-150"> public
Object getKey() {</span>
+<span class="source-line-no">151</span><span id="line-151"> return
key;</span>
+<span class="source-line-no">152</span><span id="line-152"> }</span>
+<span class="source-line-no">153</span><span id="line-153"></span>
+<span class="source-line-no">154</span><span id="line-154">
@Override</span>
+<span class="source-line-no">155</span><span id="line-155"> public
Object getValue() {</span>
+<span class="source-line-no">156</span><span id="line-156"> return
value;</span>
+<span class="source-line-no">157</span><span id="line-157"> }</span>
+<span class="source-line-no">158</span><span id="line-158"></span>
+<span class="source-line-no">159</span><span id="line-159">
@Override</span>
+<span class="source-line-no">160</span><span id="line-160"> public int
hashCode() {</span>
+<span class="source-line-no">161</span><span id="line-161"> return
(getKey()==null ? 0 : getKey().hashCode()) ^</span>
+<span class="source-line-no">162</span><span id="line-162">
(getValue()==null ? 0 : getValue().hashCode());</span>
+<span class="source-line-no">163</span><span id="line-163"> }</span>
<span class="source-line-no">164</span><span id="line-164"></span>
-<span class="source-line-no">165</span><span id="line-165"> private
final WeakReference reference;</span>
-<span class="source-line-no">166</span><span id="line-166"> private
final int hashCode;</span>
-<span class="source-line-no">167</span><span id="line-167"></span>
-<span class="source-line-no">168</span><span id="line-168"> /**</span>
-<span class="source-line-no">169</span><span id="line-169"> *</span>
-<span class="source-line-no">170</span><span id="line-170"> * @throws
NullPointerException if referant is {@code null}</span>
-<span class="source-line-no">171</span><span id="line-171"> */</span>
-<span class="source-line-no">172</span><span id="line-172"> private
Referenced(final Object referant) {</span>
-<span class="source-line-no">173</span><span id="line-173">
reference = new WeakReference(referant);</span>
-<span class="source-line-no">174</span><span id="line-174"> // Calc
a permanent hashCode so calls to Hashtable.remove()</span>
-<span class="source-line-no">175</span><span id="line-175"> // work
if the WeakReference has been cleared</span>
-<span class="source-line-no">176</span><span id="line-176">
hashCode = referant.hashCode();</span>
-<span class="source-line-no">177</span><span id="line-177"> }</span>
-<span class="source-line-no">178</span><span id="line-178"></span>
-<span class="source-line-no">179</span><span id="line-179"> /**</span>
-<span class="source-line-no">180</span><span id="line-180"> *</span>
-<span class="source-line-no">181</span><span id="line-181"> * @throws
NullPointerException if key is {@code null}</span>
-<span class="source-line-no">182</span><span id="line-182"> */</span>
-<span class="source-line-no">183</span><span id="line-183"> private
Referenced(final Object key, final ReferenceQueue queue) {</span>
-<span class="source-line-no">184</span><span id="line-184">
reference = new WeakKey(key, queue, this);</span>
-<span class="source-line-no">185</span><span id="line-185"> // Calc
a permanent hashCode so calls to Hashtable.remove()</span>
-<span class="source-line-no">186</span><span id="line-186"> // work
if the WeakReference has been cleared</span>
-<span class="source-line-no">187</span><span id="line-187">
hashCode = key.hashCode();</span>
-<span class="source-line-no">188</span><span id="line-188"></span>
-<span class="source-line-no">189</span><span id="line-189"> }</span>
-<span class="source-line-no">190</span><span id="line-190"></span>
-<span class="source-line-no">191</span><span id="line-191">
@Override</span>
-<span class="source-line-no">192</span><span id="line-192"> public
boolean equals(final Object o) {</span>
-<span class="source-line-no">193</span><span id="line-193"> boolean
result = false;</span>
-<span class="source-line-no">194</span><span id="line-194"> if (o
instanceof Referenced) {</span>
-<span class="source-line-no">195</span><span id="line-195">
final Referenced otherKey = (Referenced) o;</span>
-<span class="source-line-no">196</span><span id="line-196">
final Object thisKeyValue = getValue();</span>
-<span class="source-line-no">197</span><span id="line-197">
final Object otherKeyValue = otherKey.getValue();</span>
-<span class="source-line-no">198</span><span id="line-198"> if
(thisKeyValue == null) {</span>
-<span class="source-line-no">199</span><span id="line-199">
result = otherKeyValue == null;</span>
-<span class="source-line-no">200</span><span id="line-200"></span>
-<span class="source-line-no">201</span><span id="line-201">
// Since our hash code was calculated from the original</span>
-<span class="source-line-no">202</span><span id="line-202">
// non-null referant, the above check breaks the</span>
-<span class="source-line-no">203</span><span id="line-203">
// hash code/equals contract, as two cleared Referenced</span>
-<span class="source-line-no">204</span><span id="line-204">
// objects could test equal but have different hash codes.</span>
-<span class="source-line-no">205</span><span id="line-205">
// We can reduce (not eliminate) the chance of this</span>
-<span class="source-line-no">206</span><span id="line-206">
// happening by comparing hash codes.</span>
-<span class="source-line-no">207</span><span id="line-207">
result = result && this.hashCode() == otherKey.hashCode();</span>
-<span class="source-line-no">208</span><span id="line-208">
// In any case, as our c'tor does not allow null referants</span>
-<span class="source-line-no">209</span><span id="line-209">
// and Hashtable does not do equality checks between</span>
-<span class="source-line-no">210</span><span id="line-210">
// existing keys, normal hashtable operations should never</span>
-<span class="source-line-no">211</span><span id="line-211">
// result in an equals comparison between null referants</span>
-<span class="source-line-no">212</span><span id="line-212">
}</span>
-<span class="source-line-no">213</span><span id="line-213">
else</span>
-<span class="source-line-no">214</span><span id="line-214">
{</span>
-<span class="source-line-no">215</span><span id="line-215">
result = thisKeyValue.equals(otherKeyValue);</span>
-<span class="source-line-no">216</span><span id="line-216">
}</span>
-<span class="source-line-no">217</span><span id="line-217"> }</span>
-<span class="source-line-no">218</span><span id="line-218"> return
result;</span>
-<span class="source-line-no">219</span><span id="line-219"> }</span>
-<span class="source-line-no">220</span><span id="line-220"></span>
-<span class="source-line-no">221</span><span id="line-221"> private
Object getValue() {</span>
-<span class="source-line-no">222</span><span id="line-222"> return
reference.get();</span>
-<span class="source-line-no">223</span><span id="line-223"> }</span>
-<span class="source-line-no">224</span><span id="line-224"></span>
-<span class="source-line-no">225</span><span id="line-225">
@Override</span>
-<span class="source-line-no">226</span><span id="line-226"> public int
hashCode() {</span>
-<span class="source-line-no">227</span><span id="line-227"> return
hashCode;</span>
+<span class="source-line-no">165</span><span id="line-165">
@Override</span>
+<span class="source-line-no">166</span><span id="line-166"> public
Object setValue(final Object value) {</span>
+<span class="source-line-no">167</span><span id="line-167"> throw
new UnsupportedOperationException("Entry.setValue is not supported.");</span>
+<span class="source-line-no">168</span><span id="line-168"> }</span>
+<span class="source-line-no">169</span><span id="line-169"> }</span>
+<span class="source-line-no">170</span><span id="line-170"></span>
+<span class="source-line-no">171</span><span id="line-171"> /** Wrapper
giving correct symantics for equals and hash code */</span>
+<span class="source-line-no">172</span><span id="line-172"> private final
static class Referenced {</span>
+<span class="source-line-no">173</span><span id="line-173"></span>
+<span class="source-line-no">174</span><span id="line-174"> private
final WeakReference reference;</span>
+<span class="source-line-no">175</span><span id="line-175"> private
final int hashCode;</span>
+<span class="source-line-no">176</span><span id="line-176"></span>
+<span class="source-line-no">177</span><span id="line-177"> /**</span>
+<span class="source-line-no">178</span><span id="line-178"> *</span>
+<span class="source-line-no">179</span><span id="line-179"> * @throws
NullPointerException if referant is {@code null}</span>
+<span class="source-line-no">180</span><span id="line-180"> */</span>
+<span class="source-line-no">181</span><span id="line-181"> private
Referenced(final Object referant) {</span>
+<span class="source-line-no">182</span><span id="line-182">
reference = new WeakReference(referant);</span>
+<span class="source-line-no">183</span><span id="line-183"> // Calc
a permanent hashCode so calls to Hashtable.remove()</span>
+<span class="source-line-no">184</span><span id="line-184"> // work
if the WeakReference has been cleared</span>
+<span class="source-line-no">185</span><span id="line-185">
hashCode = referant.hashCode();</span>
+<span class="source-line-no">186</span><span id="line-186"> }</span>
+<span class="source-line-no">187</span><span id="line-187"></span>
+<span class="source-line-no">188</span><span id="line-188"> /**</span>
+<span class="source-line-no">189</span><span id="line-189"> *</span>
+<span class="source-line-no">190</span><span id="line-190"> * @throws
NullPointerException if key is {@code null}</span>
+<span class="source-line-no">191</span><span id="line-191"> */</span>
+<span class="source-line-no">192</span><span id="line-192"> private
Referenced(final Object key, final ReferenceQueue queue) {</span>
+<span class="source-line-no">193</span><span id="line-193">
reference = new WeakKey(key, queue, this);</span>
+<span class="source-line-no">194</span><span id="line-194"> // Calc
a permanent hashCode so calls to Hashtable.remove()</span>
+<span class="source-line-no">195</span><span id="line-195"> // work
if the WeakReference has been cleared</span>
+<span class="source-line-no">196</span><span id="line-196">
hashCode = key.hashCode();</span>
+<span class="source-line-no">197</span><span id="line-197"></span>
+<span class="source-line-no">198</span><span id="line-198"> }</span>
+<span class="source-line-no">199</span><span id="line-199"></span>
+<span class="source-line-no">200</span><span id="line-200">
@Override</span>
+<span class="source-line-no">201</span><span id="line-201"> public
boolean equals(final Object o) {</span>
+<span class="source-line-no">202</span><span id="line-202"> boolean
result = false;</span>
+<span class="source-line-no">203</span><span id="line-203"> if (o
instanceof Referenced) {</span>
+<span class="source-line-no">204</span><span id="line-204">
final Referenced otherKey = (Referenced) o;</span>
+<span class="source-line-no">205</span><span id="line-205">
final Object thisKeyValue = getValue();</span>
+<span class="source-line-no">206</span><span id="line-206">
final Object otherKeyValue = otherKey.getValue();</span>
+<span class="source-line-no">207</span><span id="line-207"> if
(thisKeyValue == null) {</span>
+<span class="source-line-no">208</span><span id="line-208">
result = otherKeyValue == null;</span>
+<span class="source-line-no">209</span><span id="line-209"></span>
+<span class="source-line-no">210</span><span id="line-210">
// Since our hash code was calculated from the original</span>
+<span class="source-line-no">211</span><span id="line-211">
// non-null referant, the above check breaks the</span>
+<span class="source-line-no">212</span><span id="line-212">
// hash code/equals contract, as two cleared Referenced</span>
+<span class="source-line-no">213</span><span id="line-213">
// objects could test equal but have different hash codes.</span>
+<span class="source-line-no">214</span><span id="line-214">
// We can reduce (not eliminate) the chance of this</span>
+<span class="source-line-no">215</span><span id="line-215">
// happening by comparing hash codes.</span>
+<span class="source-line-no">216</span><span id="line-216">
result = result && hashCode() == otherKey.hashCode();</span>
+<span class="source-line-no">217</span><span id="line-217">
// In any case, as our c'tor does not allow null referants</span>
+<span class="source-line-no">218</span><span id="line-218">
// and Hashtable does not do equality checks between</span>
+<span class="source-line-no">219</span><span id="line-219">
// existing keys, normal hashtable operations should never</span>
+<span class="source-line-no">220</span><span id="line-220">
// result in an equals comparison between null referants</span>
+<span class="source-line-no">221</span><span id="line-221">
}</span>
+<span class="source-line-no">222</span><span id="line-222">
else</span>
+<span class="source-line-no">223</span><span id="line-223">
{</span>
+<span class="source-line-no">224</span><span id="line-224">
result = thisKeyValue.equals(otherKeyValue);</span>
+<span class="source-line-no">225</span><span id="line-225">
}</span>
+<span class="source-line-no">226</span><span id="line-226"> }</span>
+<span class="source-line-no">227</span><span id="line-227"> return
result;</span>
<span class="source-line-no">228</span><span id="line-228"> }</span>
-<span class="source-line-no">229</span><span id="line-229"> }</span>
-<span class="source-line-no">230</span><span id="line-230"></span>
-<span class="source-line-no">231</span><span id="line-231"> /**</span>
-<span class="source-line-no">232</span><span id="line-232"> *
WeakReference subclass that holds a hard reference to an</span>
-<span class="source-line-no">233</span><span id="line-233"> * associated
{@code value} and also makes accessible</span>
-<span class="source-line-no">234</span><span id="line-234"> * the
Referenced object holding it.</span>
-<span class="source-line-no">235</span><span id="line-235"> */</span>
-<span class="source-line-no">236</span><span id="line-236"> private final
static class WeakKey extends WeakReference {</span>
-<span class="source-line-no">237</span><span id="line-237"></span>
-<span class="source-line-no">238</span><span id="line-238"> private
final Referenced referenced;</span>
+<span class="source-line-no">229</span><span id="line-229"></span>
+<span class="source-line-no">230</span><span id="line-230"> private
Object getValue() {</span>
+<span class="source-line-no">231</span><span id="line-231"> return
reference.get();</span>
+<span class="source-line-no">232</span><span id="line-232"> }</span>
+<span class="source-line-no">233</span><span id="line-233"></span>
+<span class="source-line-no">234</span><span id="line-234">
@Override</span>
+<span class="source-line-no">235</span><span id="line-235"> public int
hashCode() {</span>
+<span class="source-line-no">236</span><span id="line-236"> return
hashCode;</span>
+<span class="source-line-no">237</span><span id="line-237"> }</span>
+<span class="source-line-no">238</span><span id="line-238"> }</span>
<span class="source-line-no">239</span><span id="line-239"></span>
-<span class="source-line-no">240</span><span id="line-240"> private
WeakKey(final Object key,</span>
-<span class="source-line-no">241</span><span id="line-241">
final ReferenceQueue queue,</span>
-<span class="source-line-no">242</span><span id="line-242">
final Referenced referenced) {</span>
-<span class="source-line-no">243</span><span id="line-243">
super(key, queue);</span>
-<span class="source-line-no">244</span><span id="line-244">
this.referenced = referenced;</span>
-<span class="source-line-no">245</span><span id="line-245"> }</span>
+<span class="source-line-no">240</span><span id="line-240"> /**</span>
+<span class="source-line-no">241</span><span id="line-241"> *
WeakReference subclass that holds a hard reference to an</span>
+<span class="source-line-no">242</span><span id="line-242"> * associated
{@code value} and also makes accessible</span>
+<span class="source-line-no">243</span><span id="line-243"> * the
Referenced object holding it.</span>
+<span class="source-line-no">244</span><span id="line-244"> */</span>
+<span class="source-line-no">245</span><span id="line-245"> private final
static class WeakKey extends WeakReference {</span>
<span class="source-line-no">246</span><span id="line-246"></span>
-<span class="source-line-no">247</span><span id="line-247"> private
Referenced getReferenced() {</span>
-<span class="source-line-no">248</span><span id="line-248"> return
referenced;</span>
-<span class="source-line-no">249</span><span id="line-249"> }</span>
-<span class="source-line-no">250</span><span id="line-250"> }</span>
-<span class="source-line-no">251</span><span id="line-251"></span>
-<span class="source-line-no">252</span><span id="line-252"> /**
Serializable version identifier. */</span>
-<span class="source-line-no">253</span><span id="line-253"> private static
final long serialVersionUID = -1546036869799732453L;</span>
-<span class="source-line-no">254</span><span id="line-254"></span>
-<span class="source-line-no">255</span><span id="line-255"> /**</span>
-<span class="source-line-no">256</span><span id="line-256"> * The maximum
number of times put() or remove() can be called before</span>
-<span class="source-line-no">257</span><span id="line-257"> * the map will
be purged of all cleared entries.</span>
-<span class="source-line-no">258</span><span id="line-258"> */</span>
-<span class="source-line-no">259</span><span id="line-259"> private static
final int MAX_CHANGES_BEFORE_PURGE = 100;</span>
+<span class="source-line-no">247</span><span id="line-247"> private
final Referenced referenced;</span>
+<span class="source-line-no">248</span><span id="line-248"></span>
+<span class="source-line-no">249</span><span id="line-249"> private
WeakKey(final Object key,</span>
+<span class="source-line-no">250</span><span id="line-250">
final ReferenceQueue queue,</span>
+<span class="source-line-no">251</span><span id="line-251">
final Referenced referenced) {</span>
+<span class="source-line-no">252</span><span id="line-252">
super(key, queue);</span>
+<span class="source-line-no">253</span><span id="line-253">
this.referenced = referenced;</span>
+<span class="source-line-no">254</span><span id="line-254"> }</span>
+<span class="source-line-no">255</span><span id="line-255"></span>
+<span class="source-line-no">256</span><span id="line-256"> private
Referenced getReferenced() {</span>
+<span class="source-line-no">257</span><span id="line-257"> return
referenced;</span>
+<span class="source-line-no">258</span><span id="line-258"> }</span>
+<span class="source-line-no">259</span><span id="line-259"> }</span>
<span class="source-line-no">260</span><span id="line-260"></span>
-<span class="source-line-no">261</span><span id="line-261"> /**</span>
-<span class="source-line-no">262</span><span id="line-262"> * The maximum
number of times put() or remove() can be called before</span>
-<span class="source-line-no">263</span><span id="line-263"> * the map will
be purged of one cleared entry.</span>
-<span class="source-line-no">264</span><span id="line-264"> */</span>
-<span class="source-line-no">265</span><span id="line-265"> private static
final int PARTIAL_PURGE_COUNT = 10;</span>
-<span class="source-line-no">266</span><span id="line-266"></span>
-<span class="source-line-no">267</span><span id="line-267"> /**
ReferenceQueue we check for GC'd keys. */</span>
-<span class="source-line-no">268</span><span id="line-268"> private final
transient ReferenceQueue queue = new ReferenceQueue();</span>
+<span class="source-line-no">261</span><span id="line-261"> /**
Serializable version identifier. */</span>
+<span class="source-line-no">262</span><span id="line-262"> private static
final long serialVersionUID = -1546036869799732453L;</span>
+<span class="source-line-no">263</span><span id="line-263"></span>
+<span class="source-line-no">264</span><span id="line-264"> /**</span>
+<span class="source-line-no">265</span><span id="line-265"> * The maximum
number of times put() or remove() can be called before</span>
+<span class="source-line-no">266</span><span id="line-266"> * the map will
be purged of all cleared entries.</span>
+<span class="source-line-no">267</span><span id="line-267"> */</span>
+<span class="source-line-no">268</span><span id="line-268"> private static
final int MAX_CHANGES_BEFORE_PURGE = 100;</span>
<span class="source-line-no">269</span><span id="line-269"></span>
-<span class="source-line-no">270</span><span id="line-270"> /** Counter
used to control how often we purge gc'd entries. */</span>
-<span class="source-line-no">271</span><span id="line-271"> private int
changeCount;</span>
-<span class="source-line-no">272</span><span id="line-272"></span>
-<span class="source-line-no">273</span><span id="line-273"> /**</span>
-<span class="source-line-no">274</span><span id="line-274"> * Constructs a
WeakHashtable with the Hashtable default</span>
-<span class="source-line-no">275</span><span id="line-275"> * capacity and
load factor.</span>
-<span class="source-line-no">276</span><span id="line-276"> */</span>
-<span class="source-line-no">277</span><span id="line-277"> public
WeakHashtable() {}</span>
+<span class="source-line-no">270</span><span id="line-270"> /**</span>
+<span class="source-line-no">271</span><span id="line-271"> * The maximum
number of times put() or remove() can be called before</span>
+<span class="source-line-no">272</span><span id="line-272"> * the map will
be purged of one cleared entry.</span>
+<span class="source-line-no">273</span><span id="line-273"> */</span>
+<span class="source-line-no">274</span><span id="line-274"> private static
final int PARTIAL_PURGE_COUNT = 10;</span>
+<span class="source-line-no">275</span><span id="line-275"></span>
+<span class="source-line-no">276</span><span id="line-276"> /**
ReferenceQueue we check for GC'd keys. */</span>
+<span class="source-line-no">277</span><span id="line-277"> private final
transient ReferenceQueue queue = new ReferenceQueue();</span>
<span class="source-line-no">278</span><span id="line-278"></span>
-<span class="source-line-no">279</span><span id="line-279"> /**</span>
-<span class="source-line-no">280</span><span id="line-280"> *@see
Hashtable</span>
-<span class="source-line-no">281</span><span id="line-281"> */</span>
-<span class="source-line-no">282</span><span id="line-282"> @Override</span>
-<span class="source-line-no">283</span><span id="line-283"> public boolean
containsKey(final Object key) {</span>
-<span class="source-line-no">284</span><span id="line-284"> // purge
should not be required</span>
-<span class="source-line-no">285</span><span id="line-285"> final
Referenced referenced = new Referenced(key);</span>
-<span class="source-line-no">286</span><span id="line-286"> return
super.containsKey(referenced);</span>
-<span class="source-line-no">287</span><span id="line-287"> }</span>
-<span class="source-line-no">288</span><span id="line-288"></span>
-<span class="source-line-no">289</span><span id="line-289"> /**</span>
-<span class="source-line-no">290</span><span id="line-290"> *@see
Hashtable</span>
-<span class="source-line-no">291</span><span id="line-291"> */</span>
-<span class="source-line-no">292</span><span id="line-292"> @Override</span>
-<span class="source-line-no">293</span><span id="line-293"> public
Enumeration elements() {</span>
-<span class="source-line-no">294</span><span id="line-294">
purge();</span>
-<span class="source-line-no">295</span><span id="line-295"> return
super.elements();</span>
+<span class="source-line-no">279</span><span id="line-279"> /** Counter
used to control how often we purge gc'd entries. */</span>
+<span class="source-line-no">280</span><span id="line-280"> private int
changeCount;</span>
+<span class="source-line-no">281</span><span id="line-281"></span>
+<span class="source-line-no">282</span><span id="line-282"> /**</span>
+<span class="source-line-no">283</span><span id="line-283"> * Constructs a
WeakHashtable with the Hashtable default</span>
+<span class="source-line-no">284</span><span id="line-284"> * capacity and
load factor.</span>
+<span class="source-line-no">285</span><span id="line-285"> */</span>
+<span class="source-line-no">286</span><span id="line-286"> public
WeakHashtable() {}</span>
+<span class="source-line-no">287</span><span id="line-287"></span>
+<span class="source-line-no">288</span><span id="line-288"> /**</span>
+<span class="source-line-no">289</span><span id="line-289"> *@see
Hashtable</span>
+<span class="source-line-no">290</span><span id="line-290"> */</span>
+<span class="source-line-no">291</span><span id="line-291"> @Override</span>
+<span class="source-line-no">292</span><span id="line-292"> public boolean
containsKey(final Object key) {</span>
+<span class="source-line-no">293</span><span id="line-293"> // purge
should not be required</span>
+<span class="source-line-no">294</span><span id="line-294"> final
Referenced referenced = new Referenced(key);</span>
+<span class="source-line-no">295</span><span id="line-295"> return
super.containsKey(referenced);</span>
<span class="source-line-no">296</span><span id="line-296"> }</span>
<span class="source-line-no">297</span><span id="line-297"></span>
<span class="source-line-no">298</span><span id="line-298"> /**</span>
<span class="source-line-no">299</span><span id="line-299"> *@see
Hashtable</span>
<span class="source-line-no">300</span><span id="line-300"> */</span>
<span class="source-line-no">301</span><span id="line-301"> @Override</span>
-<span class="source-line-no">302</span><span id="line-302"> public Set
entrySet() {</span>
+<span class="source-line-no">302</span><span id="line-302"> public
Enumeration elements() {</span>
<span class="source-line-no">303</span><span id="line-303">
purge();</span>
-<span class="source-line-no">304</span><span id="line-304"> final Set
referencedEntries = super.entrySet();</span>
-<span class="source-line-no">305</span><span id="line-305"> final Set
unreferencedEntries = new HashSet();</span>
-<span class="source-line-no">306</span><span id="line-306"> for (final
Object referencedEntry : referencedEntries) {</span>
-<span class="source-line-no">307</span><span id="line-307"> final
Map.Entry entry = (Map.Entry) referencedEntry;</span>
-<span class="source-line-no">308</span><span id="line-308"> final
Referenced referencedKey = (Referenced) entry.getKey();</span>
-<span class="source-line-no">309</span><span id="line-309"> final
Object key = referencedKey.getValue();</span>
-<span class="source-line-no">310</span><span id="line-310"> final
Object value = entry.getValue();</span>
-<span class="source-line-no">311</span><span id="line-311"> if (key
!= null) {</span>
-<span class="source-line-no">312</span><span id="line-312">
final Entry dereferencedEntry = new Entry(key, value);</span>
-<span class="source-line-no">313</span><span id="line-313">
unreferencedEntries.add(dereferencedEntry);</span>
-<span class="source-line-no">314</span><span id="line-314"> }</span>
-<span class="source-line-no">315</span><span id="line-315"> }</span>
-<span class="source-line-no">316</span><span id="line-316"> return
unreferencedEntries;</span>
-<span class="source-line-no">317</span><span id="line-317"> }</span>
-<span class="source-line-no">318</span><span id="line-318"></span>
-<span class="source-line-no">319</span><span id="line-319"> /**</span>
-<span class="source-line-no">320</span><span id="line-320"> *@see
Hashtable</span>
-<span class="source-line-no">321</span><span id="line-321"> */</span>
-<span class="source-line-no">322</span><span id="line-322"> @Override</span>
-<span class="source-line-no">323</span><span id="line-323"> public Object
get(final Object key) {</span>
-<span class="source-line-no">324</span><span id="line-324"> // for
performance reasons, no purge</span>
-<span class="source-line-no">325</span><span id="line-325"> final
Referenced referenceKey = new Referenced(key);</span>
-<span class="source-line-no">326</span><span id="line-326"> return
super.get(referenceKey);</span>
-<span class="source-line-no">327</span><span id="line-327"> }</span>
-<span class="source-line-no">328</span><span id="line-328"></span>
-<span class="source-line-no">329</span><span id="line-329"> /**</span>
-<span class="source-line-no">330</span><span id="line-330"> *@see
Hashtable</span>
-<span class="source-line-no">331</span><span id="line-331"> */</span>
-<span class="source-line-no">332</span><span id="line-332"> @Override</span>
-<span class="source-line-no">333</span><span id="line-333"> public boolean
isEmpty() {</span>
-<span class="source-line-no">334</span><span id="line-334">
purge();</span>
-<span class="source-line-no">335</span><span id="line-335"> return
super.isEmpty();</span>
+<span class="source-line-no">304</span><span id="line-304"> return
super.elements();</span>
+<span class="source-line-no">305</span><span id="line-305"> }</span>
+<span class="source-line-no">306</span><span id="line-306"></span>
+<span class="source-line-no">307</span><span id="line-307"> /**</span>
+<span class="source-line-no">308</span><span id="line-308"> *@see
Hashtable</span>
+<span class="source-line-no">309</span><span id="line-309"> */</span>
+<span class="source-line-no">310</span><span id="line-310"> @Override</span>
+<span class="source-line-no">311</span><span id="line-311"> public Set
entrySet() {</span>
+<span class="source-line-no">312</span><span id="line-312">
purge();</span>
+<span class="source-line-no">313</span><span id="line-313"> final Set
referencedEntries = super.entrySet();</span>
+<span class="source-line-no">314</span><span id="line-314"> final Set
unreferencedEntries = new HashSet();</span>
+<span class="source-line-no">315</span><span id="line-315"> for (final
Object referencedEntry : referencedEntries) {</span>
+<span class="source-line-no">316</span><span id="line-316"> final
Map.Entry entry = (Map.Entry) referencedEntry;</span>
+<span class="source-line-no">317</span><span id="line-317"> final
Referenced referencedKey = (Referenced) entry.getKey();</span>
+<span class="source-line-no">318</span><span id="line-318"> final
Object key = referencedKey.getValue();</span>
+<span class="source-line-no">319</span><span id="line-319"> final
Object value = entry.getValue();</span>
+<span class="source-line-no">320</span><span id="line-320"> if (key
!= null) {</span>
+<span class="source-line-no">321</span><span id="line-321">
final Entry dereferencedEntry = new Entry(key, value);</span>
+<span class="source-line-no">322</span><span id="line-322">
unreferencedEntries.add(dereferencedEntry);</span>
+<span class="source-line-no">323</span><span id="line-323"> }</span>
+<span class="source-line-no">324</span><span id="line-324"> }</span>
+<span class="source-line-no">325</span><span id="line-325"> return
unreferencedEntries;</span>
+<span class="source-line-no">326</span><span id="line-326"> }</span>
+<span class="source-line-no">327</span><span id="line-327"></span>
+<span class="source-line-no">328</span><span id="line-328"> /**</span>
+<span class="source-line-no">329</span><span id="line-329"> *@see
Hashtable</span>
+<span class="source-line-no">330</span><span id="line-330"> */</span>
+<span class="source-line-no">331</span><span id="line-331"> @Override</span>
+<span class="source-line-no">332</span><span id="line-332"> public Object
get(final Object key) {</span>
+<span class="source-line-no">333</span><span id="line-333"> // for
performance reasons, no purge</span>
+<span class="source-line-no">334</span><span id="line-334"> final
Referenced referenceKey = new Referenced(key);</span>
+<span class="source-line-no">335</span><span id="line-335"> return
super.get(referenceKey);</span>
<span class="source-line-no">336</span><span id="line-336"> }</span>
<span class="source-line-no">337</span><span id="line-337"></span>
<span class="source-line-no">338</span><span id="line-338"> /**</span>
<span class="source-line-no">339</span><span id="line-339"> *@see
Hashtable</span>
<span class="source-line-no">340</span><span id="line-340"> */</span>
<span class="source-line-no">341</span><span id="line-341"> @Override</span>
-<span class="source-line-no">342</span><span id="line-342"> public
Enumeration keys() {</span>
+<span class="source-line-no">342</span><span id="line-342"> public boolean
isEmpty() {</span>
<span class="source-line-no">343</span><span id="line-343">
purge();</span>
-<span class="source-line-no">344</span><span id="line-344"> final
Enumeration enumer = super.keys();</span>
-<span class="source-line-no">345</span><span id="line-345"> return new
Enumeration() {</span>
-<span class="source-line-no">346</span><span id="line-346">
@Override</span>
-<span class="source-line-no">347</span><span id="line-347"> public
boolean hasMoreElements() {</span>
-<span class="source-line-no">348</span><span id="line-348">
return enumer.hasMoreElements();</span>
-<span class="source-line-no">349</span><span id="line-349"> }</span>
-<span class="source-line-no">350</span><span id="line-350">
@Override</span>
-<span class="source-line-no">351</span><span id="line-351"> public
Object nextElement() {</span>
-<span class="source-line-no">352</span><span id="line-352">
final Referenced nextReference = (Referenced) enumer.nextElement();</span>
-<span class="source-line-no">353</span><span id="line-353">
return nextReference.getValue();</span>
-<span class="source-line-no">354</span><span id="line-354"> }</span>
-<span class="source-line-no">355</span><span id="line-355"> };</span>
-<span class="source-line-no">356</span><span id="line-356"> }</span>
-<span class="source-line-no">357</span><span id="line-357"></span>
-<span class="source-line-no">358</span><span id="line-358"> /**</span>
-<span class="source-line-no">359</span><span id="line-359"> *@see
Hashtable</span>
-<span class="source-line-no">360</span><span id="line-360"> */</span>
-<span class="source-line-no">361</span><span id="line-361"> @Override</span>
-<span class="source-line-no">362</span><span id="line-362"> public Set
keySet() {</span>
-<span class="source-line-no">363</span><span id="line-363">
purge();</span>
-<span class="source-line-no">364</span><span id="line-364"> final Set
referencedKeys = super.keySet();</span>
-<span class="source-line-no">365</span><span id="line-365"> final Set
unreferencedKeys = new HashSet();</span>
-<span class="source-line-no">366</span><span id="line-366"> for (final
Object referencedKey : referencedKeys) {</span>
-<span class="source-line-no">367</span><span id="line-367"> final
Referenced referenceKey = (Referenced) referencedKey;</span>
-<span class="source-line-no">368</span><span id="line-368"> final
Object keyValue = referenceKey.getValue();</span>
-<span class="source-line-no">369</span><span id="line-369"> if
(keyValue != null) {</span>
-<span class="source-line-no">370</span><span id="line-370">
unreferencedKeys.add(keyValue);</span>
-<span class="source-line-no">371</span><span id="line-371"> }</span>
-<span class="source-line-no">372</span><span id="line-372"> }</span>
-<span class="source-line-no">373</span><span id="line-373"> return
unreferencedKeys;</span>
-<span class="source-line-no">374</span><span id="line-374"> }</span>
-<span class="source-line-no">375</span><span id="line-375"></span>
-<span class="source-line-no">376</span><span id="line-376"> /**</span>
-<span class="source-line-no">377</span><span id="line-377"> * Purges all
entries whose wrapped keys</span>
-<span class="source-line-no">378</span><span id="line-378"> * have been
garbage collected.</span>
-<span class="source-line-no">379</span><span id="line-379"> */</span>
-<span class="source-line-no">380</span><span id="line-380"> private void
purge() {</span>
-<span class="source-line-no">381</span><span id="line-381"> final List
toRemove = new ArrayList();</span>
-<span class="source-line-no">382</span><span id="line-382">
synchronized (queue) {</span>
-<span class="source-line-no">383</span><span id="line-383"> WeakKey
key;</span>
-<span class="source-line-no">384</span><span id="line-384"> while
((key = (WeakKey) queue.poll()) != null) {</span>
-<span class="source-line-no">385</span><span id="line-385">
toRemove.add(key.getReferenced());</span>
-<span class="source-line-no">386</span><span id="line-386"> }</span>
-<span class="source-line-no">387</span><span id="line-387"> }</span>
-<span class="source-line-no">388</span><span id="line-388"></span>
-<span class="source-line-no">389</span><span id="line-389"> //
LOGGING-119: do the actual removal of the keys outside the sync block</span>
-<span class="source-line-no">390</span><span id="line-390"> // to
prevent deadlock scenarios as purge() may be called from</span>
-<span class="source-line-no">391</span><span id="line-391"> //
non-synchronized methods too</span>
-<span class="source-line-no">392</span><span id="line-392"> final int
size = toRemove.size();</span>
-<span class="source-line-no">393</span><span id="line-393"> for (int i
= 0; i < size; i++) {</span>
-<span class="source-line-no">394</span><span id="line-394">
super.remove(toRemove.get(i));</span>
-<span class="source-line-no">395</span><span id="line-395"> }</span>
-<span class="source-line-no">396</span><span id="line-396"> }</span>
+<span class="source-line-no">344</span><span id="line-344"> return
super.isEmpty();</span>
+<span class="source-line-no">345</span><span id="line-345"> }</span>
+<span class="source-line-no">346</span><span id="line-346"></span>
+<span class="source-line-no">347</span><span id="line-347"> /**</span>
+<span class="source-line-no">348</span><span id="line-348"> *@see
Hashtable</span>
+<span class="source-line-no">349</span><span id="line-349"> */</span>
+<span class="source-line-no">350</span><span id="line-350"> @Override</span>
+<span class="source-line-no">351</span><span id="line-351"> public
Enumeration keys() {</span>
+<span class="source-line-no">352</span><span id="line-352">
purge();</span>
+<span class="source-line-no">353</span><span id="line-353"> final
Enumeration enumer = super.keys();</span>
+<span class="source-line-no">354</span><span id="line-354"> return new
Enumeration() {</span>
+<span class="source-line-no">355</span><span id="line-355">
@Override</span>
+<span class="source-line-no">356</span><span id="line-356"> public
boolean hasMoreElements() {</span>
+<span class="source-line-no">357</span><span id="line-357">
return enumer.hasMoreElements();</span>
+<span class="source-line-no">358</span><span id="line-358"> }</span>
+<span class="source-line-no">359</span><span id="line-359">
@Override</span>
+<span class="source-line-no">360</span><span id="line-360"> public
Object nextElement() {</span>
+<span class="source-line-no">361</span><span id="line-361">
final Referenced nextReference = (Referenced) enumer.nextElement();</span>
+<span class="source-line-no">362</span><span id="line-362">
return nextReference.getValue();</span>
+<span class="source-line-no">363</span><span id="line-363"> }</span>
+<span class="source-line-no">364</span><span id="line-364"> };</span>
+<span class="source-line-no">365</span><span id="line-365"> }</span>
+<span class="source-line-no">366</span><span id="line-366"></span>
+<span class="source-line-no">367</span><span id="line-367"> /**</span>
+<span class="source-line-no">368</span><span id="line-368"> *@see
Hashtable</span>
+<span class="source-line-no">369</span><span id="line-369"> */</span>
+<span class="source-line-no">370</span><span id="line-370"> @Override</span>
+<span class="source-line-no">371</span><span id="line-371"> public Set
keySet() {</span>
+<span class="source-line-no">372</span><span id="line-372">
purge();</span>
+<span class="source-line-no">373</span><span id="line-373"> final Set
referencedKeys = super.keySet();</span>
+<span class="source-line-no">374</span><span id="line-374"> final Set
unreferencedKeys = new HashSet();</span>
+<span class="source-line-no">375</span><span id="line-375"> for (final
Object referencedKey : referencedKeys) {</span>
+<span class="source-line-no">376</span><span id="line-376"> final
Referenced referenceKey = (Referenced) referencedKey;</span>
+<span class="source-line-no">377</span><span id="line-377"> final
Object keyValue = referenceKey.getValue();</span>
+<span class="source-line-no">378</span><span id="line-378"> if
(keyValue != null) {</span>
+<span class="source-line-no">379</span><span id="line-379">
unreferencedKeys.add(keyValue);</span>
+<span class="source-line-no">380</span><span id="line-380"> }</span>
+<span class="source-line-no">381</span><span id="line-381"> }</span>
+<span class="source-line-no">382</span><span id="line-382"> return
unreferencedKeys;</span>
+<span class="source-line-no">383</span><span id="line-383"> }</span>
+<span class="source-line-no">384</span><span id="line-384"></span>
+<span class="source-line-no">385</span><span id="line-385"> /**</span>
+<span class="source-line-no">386</span><span id="line-386"> * Purges all
entries whose wrapped keys</span>
+<span class="source-line-no">387</span><span id="line-387"> * have been
garbage collected.</span>
+<span class="source-line-no">388</span><span id="line-388"> */</span>
+<span class="source-line-no">389</span><span id="line-389"> private void
purge() {</span>
+<span class="source-line-no">390</span><span id="line-390"> final List
toRemove = new ArrayList();</span>
+<span class="source-line-no">391</span><span id="line-391">
synchronized (queue) {</span>
+<span class="source-line-no">392</span><span id="line-392"> WeakKey
key;</span>
+<span class="source-line-no">393</span><span id="line-393"> while
((key = (WeakKey) queue.poll()) != null) {</span>
+<span class="source-line-no">394</span><span id="line-394">
toRemove.add(key.getReferenced());</span>
+<span class="source-line-no">395</span><span id="line-395"> }</span>
+<span class="source-line-no">396</span><span id="line-396"> }</span>
<span class="source-line-no">397</span><span id="line-397"></span>
-<span class="source-line-no">398</span><span id="line-398"> /**</span>
-<span class="source-line-no">399</span><span id="line-399"> * Purges one
entry whose wrapped key</span>
-<span class="source-line-no">400</span><span id="line-400"> * has been
garbage collected.</span>
-<span class="source-line-no">401</span><span id="line-401"> */</span>
-<span class="source-line-no">402</span><span id="line-402"> private void
purgeOne() {</span>
-<span class="source-line-no">403</span><span id="line-403">
synchronized (queue) {</span>
-<span class="source-line-no">404</span><span id="line-404"> final
WeakKey key = (WeakKey) queue.poll();</span>
-<span class="source-line-no">405</span><span id="line-405"> if (key
!= null) {</span>
-<span class="source-line-no">406</span><span id="line-406">
super.remove(key.getReferenced());</span>
-<span class="source-line-no">407</span><span id="line-407"> }</span>
-<span class="source-line-no">408</span><span id="line-408"> }</span>
-<span class="source-line-no">409</span><span id="line-409"> }</span>
-<span class="source-line-no">410</span><span id="line-410"></span>
-<span class="source-line-no">411</span><span id="line-411"> /**</span>
-<span class="source-line-no">412</span><span id="line-412"> *@see
Hashtable</span>
-<span class="source-line-no">413</span><span id="line-413"> */</span>
-<span class="source-line-no">414</span><span id="line-414"> @Override</span>
-<span class="source-line-no">415</span><span id="line-415"> public
synchronized Object put(final Object key, final Object value) {</span>
-<span class="source-line-no">416</span><span id="line-416"> // check
for nulls, ensuring semantics match superclass</span>
-<span class="source-line-no">417</span><span id="line-417">
Objects.requireNonNull(key, "key");</span>
-<span class="source-line-no">418</span><span id="line-418">
Objects.requireNonNull(value, "value");</span>
+<span class="source-line-no">398</span><span id="line-398"> //
LOGGING-119: do the actual removal of the keys outside the sync block</span>
+<span class="source-line-no">399</span><span id="line-399"> // to
prevent deadlock scenarios as purge() may be called from</span>
+<span class="source-line-no">400</span><span id="line-400"> //
non-synchronized methods too</span>
+<span class="source-line-no">401</span><span id="line-401"> final int
size = toRemove.size();</span>
+<span class="source-line-no">402</span><span id="line-402"> for (int i
= 0; i < size; i++) {</span>
+<span class="source-line-no">403</span><span id="line-403">
super.remove(toRemove.get(i));</span>
+<span class="source-line-no">404</span><span id="line-404"> }</span>
+<span class="source-line-no">405</span><span id="line-405"> }</span>
+<span class="source-line-no">406</span><span id="line-406"></span>
+<span class="source-line-no">407</span><span id="line-407"> /**</span>
+<span class="source-line-no">408</span><span id="line-408"> * Purges one
entry whose wrapped key</span>
+<span class="source-line-no">409</span><span id="line-409"> * has been
garbage collected.</span>
+<span class="source-line-no">410</span><span id="line-410"> */</span>
+<span class="source-line-no">411</span><span id="line-411"> private void
purgeOne() {</span>
+<span class="source-line-no">412</span><span id="line-412">
synchronized (queue) {</span>
+<span class="source-line-no">413</span><span id="line-413"> final
WeakKey key = (WeakKey) queue.poll();</span>
+<span class="source-line-no">414</span><span id="line-414"> if (key
!= null) {</span>
+<span class="source-line-no">415</span><span id="line-415">
super.remove(key.getReferenced());</span>
+<span class="source-line-no">416</span><span id="line-416"> }</span>
+<span class="source-line-no">417</span><span id="line-417"> }</span>
+<span class="source-line-no">418</span><span id="line-418"> }</span>
<span class="source-line-no">419</span><span id="line-419"></span>
-<span class="source-line-no">420</span><span id="line-420"> // for
performance reasons, only purge every</span>
-<span class="source-line-no">421</span><span id="line-421"> //
MAX_CHANGES_BEFORE_PURGE times</span>
-<span class="source-line-no">422</span><span id="line-422"> if
(changeCount++ > MAX_CHANGES_BEFORE_PURGE) {</span>
-<span class="source-line-no">423</span><span id="line-423">
purge();</span>
-<span class="source-line-no">424</span><span id="line-424">
changeCount = 0;</span>
-<span class="source-line-no">425</span><span id="line-425"> }</span>
-<span class="source-line-no">426</span><span id="line-426"> // do a
partial purge more often</span>
-<span class="source-line-no">427</span><span id="line-427"> else if
(changeCount % PARTIAL_PURGE_COUNT == 0) {</span>
-<span class="source-line-no">428</span><span id="line-428">
purgeOne();</span>
-<span class="source-line-no">429</span><span id="line-429"> }</span>
-<span class="source-line-no">430</span><span id="line-430"></span>
-<span class="source-line-no">431</span><span id="line-431"> final
Referenced keyRef = new Referenced(key, queue);</span>
-<span class="source-line-no">432</span><span id="line-432"> return
super.put(keyRef, value);</span>
-<span class="source-line-no">433</span><span id="line-433"> }</span>
-<span class="source-line-no">434</span><span id="line-434"></span>
-<span class="source-line-no">435</span><span id="line-435"> /**</span>
-<span class="source-line-no">436</span><span id="line-436"> *@see
Hashtable</span>
-<span class="source-line-no">437</span><span id="line-437"> */</span>
-<span class="source-line-no">438</span><span id="line-438"> @Override</span>
-<span class="source-line-no">439</span><span id="line-439"> public void
putAll(final Map t) {</span>
-<span class="source-line-no">440</span><span id="line-440"> if (t !=
null) {</span>
-<span class="source-line-no">441</span><span id="line-441"> final
Set entrySet = t.entrySet();</span>
-<span class="source-line-no">442</span><span id="line-442"> for
(final Object element : entrySet) {</span>
-<span class="source-line-no">443</span><span id="line-443">
final Map.Entry entry = (Map.Entry) element;</span>
-<span class="source-line-no">444</span><span id="line-444">
put(entry.getKey(), entry.getValue());</span>
-<span class="source-line-no">445</span><span id="line-445"> }</span>
-<span class="source-line-no">446</span><span id="line-446"> }</span>
-<span class="source-line-no">447</span><span id="line-447"> }</span>
-<span class="source-line-no">448</span><span id="line-448"></span>
-<span class="source-line-no">449</span><span id="line-449"> /**</span>
-<span class="source-line-no">450</span><span id="line-450"> * @see
Hashtable</span>
-<span class="source-line-no">451</span><span id="line-451"> */</span>
-<span class="source-line-no">452</span><span id="line-452"> @Override</span>
-<span class="source-line-no">453</span><span id="line-453"> protected void
rehash() {</span>
-<span class="source-line-no">454</span><span id="line-454"> // purge
here to save the effort of rehashing dead entries</span>
-<span class="source-line-no">455</span><span id="line-455">
purge();</span>
-<span class="source-line-no">456</span><span id="line-456">
super.rehash();</span>
-<span class="source-line-no">457</span><span id="line-457"> }</span>
-<span class="source-line-no">458</span><span id="line-458"></span>
-<span class="source-line-no">459</span><span id="line-459"> /**</span>
-<span class="source-line-no">460</span><span id="line-460"> *@see
Hashtable</span>
-<span class="source-line-no">461</span><span id="line-461"> */</span>
-<span class="source-line-no">462</span><span id="line-462"> @Override</span>
-<span class="source-line-no">463</span><span id="line-463"> public
synchronized Object remove(final Object key) {</span>
-<span class="source-line-no">464</span><span id="line-464"> // for
performance reasons, only purge every</span>
-<span class="source-line-no">465</span><span id="line-465"> //
MAX_CHANGES_BEFORE_PURGE times</span>
-<span class="source-line-no">466</span><span id="line-466"> if
(changeCount++ > MAX_CHANGES_BEFORE_PURGE) {</span>
-<span class="source-line-no">467</span><span id="line-467">
purge();</span>
-<span class="source-line-no">468</span><span id="line-468">
changeCount = 0;</span>
-<span class="source-line-no">469</span><span id="line-469"> }</span>
-<span class="source-line-no">470</span><span id="line-470"> // do a
partial purge more often</span>
-<span class="source-line-no">471</span><span id="line-471"> else if
(changeCount % PARTIAL_PURGE_COUNT == 0) {</span>
-<span class="source-line-no">472</span><span id="line-472">
purgeOne();</span>
-<span class="source-line-no">473</span><span id="line-473"> }</span>
-<span class="source-line-no">474</span><span id="line-474"> return
super.remove(new Referenced(key));</span>
-<span class="source-line-no">475</span><span id="line-475"> }</span>
-<span class="source-line-no">476</span><span id="line-476"></span>
-<span class="source-line-no">477</span><span id="line-477"> /**</span>
-<span class="source-line-no">478</span><span id="line-478"> *@see
Hashtable</span>
-<span class="source-line-no">479</span><span id="line-479"> */</span>
-<span class="source-line-no">480</span><span id="line-480"> @Override</span>
-<span class="source-line-no">481</span><span id="line-481"> public int
size() {</span>
-<span class="source-line-no">482</span><span id="line-482">
purge();</span>
-<span class="source-line-no">483</span><span id="line-483"> return
super.size();</span>
+<span class="source-line-no">420</span><span id="line-420"> /**</span>
+<span class="source-line-no">421</span><span id="line-421"> *@see
Hashtable</span>
+<span class="source-line-no">422</span><span id="line-422"> */</span>
+<span class="source-line-no">423</span><span id="line-423"> @Override</span>
+<span class="source-line-no">424</span><span id="line-424"> public
synchronized Object put(final Object key, final Object value) {</span>
+<span class="source-line-no">425</span><span id="line-425"> // check
for nulls, ensuring semantics match superclass</span>
+<span class="source-line-no">426</span><span id="line-426">
Objects.requireNonNull(key, "key");</span>
+<span class="source-line-no">427</span><span id="line-427">
Objects.requireNonNull(value, "value");</span>
+<span class="source-line-no">428</span><span id="line-428"></span>
+<span class="source-line-no">429</span><span id="line-429"> // for
performance reasons, only purge every</span>
+<span class="source-line-no">430</span><span id="line-430"> //
MAX_CHANGES_BEFORE_PURGE times</span>
+<span class="source-line-no">431</span><span id="line-431"> if
(changeCount++ > MAX_CHANGES_BEFORE_PURGE) {</span>
+<span class="source-line-no">432</span><span id="line-432">
purge();</span>
+<span class="source-line-no">433</span><span id="line-433">
changeCount = 0;</span>
+<span class="source-line-no">434</span><span id="line-434"> }</span>
+<span class="source-line-no">435</span><span id="line-435"> // do a
partial purge more often</span>
+<span class="source-line-no">436</span><span id="line-436"> else if
(changeCount % PARTIAL_PURGE_COUNT == 0) {</span>
+<span class="source-line-no">437</span><span id="line-437">
purgeOne();</span>
+<span class="source-line-no">438</span><span id="line-438"> }</span>
+<span class="source-line-no">439</span><span id="line-439"></span>
+<span class="source-line-no">440</span><span id="line-440"> final
Referenced keyRef = new Referenced(key, queue);</span>
+<span class="source-line-no">441</span><span id="line-441"> return
super.put(keyRef, value);</span>
+<span class="source-line-no">442</span><span id="line-442"> }</span>
+<span class="source-line-no">443</span><span id="line-443"></span>
+<span class="source-line-no">444</span><span id="line-444"> /**</span>
+<span class="source-line-no">445</span><span id="line-445"> *@see
Hashtable</span>
+<span class="source-line-no">446</span><span id="line-446"> */</span>
+<span class="source-line-no">447</span><span id="line-447"> @Override</span>
+<span class="source-line-no">448</span><span id="line-448"> public void
putAll(final Map t) {</span>
+<span class="source-line-no">449</span><span id="line-449"> if (t !=
null) {</span>
+<span class="source-line-no">450</span><span id="line-450"> final
Set entrySet = t.entrySet();</span>
+<span class="source-line-no">451</span><span id="line-451"> for
(final Object element : entrySet) {</span>
+<span class="source-line-no">452</span><span id="line-452">
final Map.Entry entry = (Map.Entry) element;</span>
+<span class="source-line-no">453</span><span id="line-453">
put(entry.getKey(), entry.getValue());</span>
+<span class="source-line-no">454</span><span id="line-454"> }</span>
+<span class="source-line-no">455</span><span id="line-455"> }</span>
+<span class="source-line-no">456</span><span id="line-456"> }</span>
+<span class="source-line-no">457</span><span id="line-457"></span>
+<span class="source-line-no">458</span><span id="line-458"> /**</span>
+<span class="source-line-no">459</span><span id="line-459"> * @see
Hashtable</span>
+<span class="source-line-no">460</span><span id="line-460"> */</span>
+<span class="source-line-no">461</span><span id="line-461"> @Override</span>
+<span class="source-line-no">462</span><span id="line-462"> protected void
rehash() {</span>
+<span class="source-line-no">463</span><span id="line-463"> // purge
here to save the effort of rehashing dead entries</span>
+<span class="source-line-no">464</span><span id="line-464">
purge();</span>
+<span class="source-line-no">465</span><span id="line-465">
super.rehash();</span>
+<span class="source-line-no">466</span><span id="line-466"> }</span>
+<span class="source-line-no">467</span><span id="line-467"></span>
+<span class="source-line-no">468</span><span id="line-468"> /**</span>
+<span class="source-line-no">469</span><span id="line-469"> *@see
Hashtable</span>
+<span class="source-line-no">470</span><span id="line-470"> */</span>
+<span class="source-line-no">471</span><span id="line-471"> @Override</span>
+<span class="source-line-no">472</span><span id="line-472"> public
synchronized Object remove(final Object key) {</span>
+<span class="source-line-no">473</span><span id="line-473"> // for
performance reasons, only purge every</span>
[... 48 lines stripped ...]