Hi Stuart,
Related to java.lang.Complier there is the System property
"java.compiler" [1].
Is there some notation needed on the property or will it just go poof
when the compiler is removed?
Thanks, Roger
[1] JDK-8041676 <https://bugs.openjdk.java.net/browse/JDK-8041676>
java.compiler property is uninitialized
On 9/7/2016 4:52 PM, Stuart Marks wrote:
Hi all,
Please review this small patch to deprecate java.lang.Compiler for
removal.
Thanks,
s'marks
# HG changeset patch
# User smarks
# Date 1473281459 25200
# Wed Sep 07 13:50:59 2016 -0700
# Node ID e520c4e6970c079573bad20c6b1eba8d5794b34d
# Parent 76ba1b74f268f1acc4847e242a2cfcd29880418c
4285505: deprecate java.lang.Compiler
Reviewed-by: XXX
diff -r 76ba1b74f268 -r e520c4e6970c
src/java.base/share/classes/java/lang/Compiler.java
--- a/src/java.base/share/classes/java/lang/Compiler.java Tue Sep
06 16:08:54 2016 -0700
+++ b/src/java.base/share/classes/java/lang/Compiler.java Wed Sep
07 13:50:59 2016 -0700
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 1995, 2014, Oracle and/or its affiliates. All rights
reserved.
+ * Copyright (c) 1995, 2016, Oracle and/or its affiliates. All rights
reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@@ -29,21 +29,18 @@
* The {@code Compiler} class is provided to support Java-to-native-code
* compilers and related services. By design, the {@code Compiler}
class does
* nothing; it serves as a placeholder for a JIT compiler
implementation.
+ * If no compiler is available, these methods do nothing.
*
- * <p> When the Java Virtual Machine first starts, it determines if
the system
- * property {@code java.compiler} exists. (System properties are
accessible
- * through {@link System#getProperty(String)} and {@link
- * System#getProperty(String, String)}. If so, it is assumed to be
the name of
- * a library (with a platform-dependent exact location and type); {@link
- * System#loadLibrary} is called to load that library. If this loading
- * succeeds, the function named {@code java_lang_Compiler_start()} in
that
- * library is called.
- *
- * <p> If no compiler is available, these methods do nothing.
+ * @deprecated JIT compilers and their technologies vary too widely to
+ * be controlled effectively by a standardized interface. As such, many
+ * JIT compiler implementations ignore this interface, and are instead
+ * controllable by implementation-specific mechanisms such as
command-line
+ * options. This class is subject to removal in a future version of
Java SE.
*
* @author Frank Yellin
* @since 1.0
*/
+@Deprecated(since="9", forRemoval=true)
public final class Compiler {
private Compiler() {} // don't make instances
