Create system variable ANT_OPTS and set the value of this to -DXms=1024M -DXmx=1024M -XX:+UseParallelGC Hope this would help, I had similar problem, which was solved using this.
-----Original Message----- From: Ravi Roy [mailto:[EMAIL PROTECTED] Sent: Friday, June 20, 2008 6:55 PM To: Ant Users List; Henning Bredel Subject: Re: Best practises for Ant Memory usage Hi, Thanks for your reply Henning. Yes, javac causes memory error, following is the error message. I am using Sun JDK 1.6.0_03-b05. ________________________________________________________________________ _________ compile: [javac] Compiling 4 source files to d:\Build\iPiece\Java\iTool\bin [javac] [javac] [javac] The system is out of resources. [javac] Consult the following stack trace for details. [javac] java.lang.OutOfMemoryError: Java heap space [javac] at com.sun.tools.javac.util.Name.fromChars(Name.java:115) [javac] at com.sun.tools.javac.util.Name.fromString(Name.java:144) [javac] at com.sun.tools.javac.util.Name.fromString(Name.java:150) [javac] at com.sun.tools.javac.util.Name$Table.fromString(Name.java:529) [javac] at com.sun.tools.javac.jvm.ClassWriter.writePool(ClassWriter.java:510) [javac] at com.sun.tools.javac.jvm.ClassWriter.writeClassFile(ClassWriter.java:1565 ) [javac] at com.sun.tools.javac.jvm.ClassWriter.writeClass(ClassWriter.java:1443) [javac] at com.sun.tools.javac.main.JavaCompiler.genCode(JavaCompiler.java:618) [javac] at com.sun.tools.javac.main.JavaCompiler.generate(JavaCompiler.java:1289) [javac] at com.sun.tools.javac.main.JavaCompiler.generate(JavaCompiler.java:1259) [javac] at com.sun.tools.javac.main.JavaCompiler.compile2(JavaCompiler.java:765) [javac] at com.sun.tools.javac.main.JavaCompiler.compile(JavaCompiler.java:730) [javac] at com.sun.tools.javac.main.Main.compile(Main.java:353) [javac] at com.sun.tools.javac.main.Main.compile(Main.java:279) [javac] at com.sun.tools.javac.main.Main.compile(Main.java:270) [javac] at com.sun.tools.javac.Main.compile(Main.java:69) [javac] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [javac] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.jav a:39) [javac] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessor Impl.java:25) [javac] at java.lang.reflect.Method.invoke(Method.java:597) [javac] at org.apache.tools.ant.taskdefs.compilers.Javac13.execute(Javac13.java:56) [javac] at org.apache.tools.ant.taskdefs.Javac.compile(Javac.java:1065) [javac] at org.apache.tools.ant.taskdefs.Javac.execute(Javac.java:882) [javac] at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:288) [javac] at sun.reflect.GeneratedMethodAccessor179.invoke(Unknown Source) [javac] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessor Impl.java:25) [javac] at java.lang.reflect.Method.invoke(Method.java:597) [javac] at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:1 06) [javac] at org.apache.tools.ant.Task.perform(Task.java:348) [javac] at org.apache.tools.ant.Target.execute(Target.java:357) [javac] at org.apache.tools.ant.Target.performTasks(Target.java:385) [javac] at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1337) BUILD FAILED D:\Build\iPiece\build.xml:209: The following error occurred while executing this line: d:\Build\Ant\Main-Targets.xml:9: The following error occurred while executing this line: d:\Build\Ant\Main-Targets.xml:32: The following error occurred while executing this line: d:\Build\iPiece\Java\iTool\build_itool.xml:23: Compile failed; see the compiler error output for details. at org.apache.tools.ant.ProjectHelper.addLocationToBuildException(ProjectHe lper.java:508) at org.apache.tools.ant.taskdefs.Ant.execute(Ant.java:418) at org.apache.tools.ant.taskdefs.CallTarget.execute(CallTarget.java:105) at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:288) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.jav a:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessor Impl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:1 06) at org.apache.tools.ant.Task.perform(Task.java:348) at org.apache.tools.ant.Target.execute(Target.java:357) at org.apache.tools.ant.Target.performTasks(Target.java:385) at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1337) at org.apache.tools.ant.Project.executeTarget(Project.java:1306) at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecut or.java:41) at org.apache.tools.ant.Project.executeTargets(Project.java:1189) at org.apache.tools.ant.Main.runBuild(Main.java:758) at org.apache.tools.ant.Main.startAnt(Main.java:217) at org.apache.tools.ant.launch.Launcher.run(Launcher.java:257) at org.apache.tools.ant.launch.Launcher.main(Launcher.java:104) ________________________________________________________________________ _________ I have set ANT_OPTS to -DXms=1536m -DXmx=1536m , earlier it was set to 1024m. Thanks. Regards, Ravi. On Fri, Jun 20, 2008 at 4:33 PM, Henning Bredel <[EMAIL PROTECTED]> wrote: >> From time to time, I get Out-Of-Memory errors in Ant (Ant 1.7.0), I >> would like to know the best practises from the people who have >> experience with Ant Memory Management. Some set of tips & tricks.. >> would help every one here.. > > Are you sure, that ant causes the memory error? For example it could > be the javac command which runs out of heap size . . . > > Please attach an error message to give a hint, what the Out- of-Memory > error causes. > > Regards > > Henning > --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] DISCLAIMER: Unless indicated otherwise, the information contained in this message is privileged and confidential, and is intended only for the use of the addressee(s) named above and others who have been specifically authorized to receive it. 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