Hi,
After precompiling my javaScript and loading generated classes with
org.mozilla.javascript.GeneratedClassLoader I stored scripts main class in a
variable and tried to generate a lot of instances (~200) from it using
newInstance() method.
At some point java.lang.OutOfMemoryError: PermGen space hit me (stack is in the
end of this mail).
When reading the stack I started to think what is the difference between using
precompiled script class and scope where compiled (ctx.compileReader) script is
executed? Precompiled solution seems just slightly faster but several instances
take up more space than multiple scopes in the memory. And precompiled
instances fill up permgen not heap and thus is harder to collect.
A thought while writing this: Am doing it all wrong and should be using
javascript constructor instead and call newInstance just once??
java.lang.OutOfMemoryError: PermGen space
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:620)
at
org.mozilla.javascript.DefiningClassLoader.defineClass(DefiningClassLoader.java:62)
at
org.mozilla.javascript.optimizer.Codegen.defineClass(Codegen.java:146)
at
org.mozilla.javascript.optimizer.Codegen.createScriptObject(Codegen.java:101)
at org.mozilla.javascript.Context.compileImpl(Context.java:2393)
at
org.mozilla.javascript.Context.compileString(Context.java:1343)
at
org.mozilla.javascript.Context.compileString(Context.java:1332)
at
org.mozilla.javascript.tools.shell.Main.loadScriptFromSource(Main.java:456)
at
org.mozilla.javascript.tools.shell.Main.processFileSecure(Main.java:444)
at
org.mozilla.javascript.tools.shell.Main.processFile(Main.java:413)
at
org.mozilla.javascript.tools.shell.Global.load(Global.java:247)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.mozilla.javascript.MemberBox.invoke(MemberBox.java:161)
at
org.mozilla.javascript.FunctionObject.call(FunctionObject.java:415)
at
org.mozilla.javascript.optimizer.OptRuntime.callName(OptRuntime.java:97)
at AppHtmlBuilder1._c0(htmlGen:11)
at AppHtmlBuilder1.call(htmlGen)
at
org.mozilla.javascript.ContextFactory.doTopCall(ContextFactory.java:401)
at
org.mozilla.javascript.ScriptRuntime.doTopCall(ScriptRuntime.java:3003)
at AppHtmlBuilder1.call(htmlGen)
at AppHtmlBuilder1.exec(htmlGen)
at
org.mozilla.javascript.JavaAdapter$2.run(JavaAdapter.java:588)
at org.mozilla.javascript.Context.call(Context.java:499)
at
org.mozilla.javascript.ContextFactory.call(ContextFactory.java:511)
at
org.mozilla.javascript.JavaAdapter.runScript(JavaAdapter.java:583)
at AppHtmlBuilder.<init>(<adapter>)
at
sun.reflect.GeneratedConstructorAccessor11.newInstance(Unknown Source)
at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
Best regards
Priit
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