[news.eclipse.newcomer] Re: problem with slow ant builds

["Paul" <pfink@xxxxxxxxx>]

Ok I figured out how to get it to run in the console in Windows
This is my heap dump: (Any help would be appreciated)

Full thread dump Java HotSpot(TM) Client VM (1.5.0_05-b05 mixed mode, 
sharing):

"Low Memory Detector" daemon prio=5 tid=0x00a6f2b8 nid=0x968 runnable 
[0x00000000..0x00000000]

"CompilerThread0" daemon prio=10 tid=0x00a6dfc0 nid=0x678 waiting on 
condition [0x00000000..0x02c0f84c]

"Signal Dispatcher" daemon prio=10 tid=0x00a6d128 nid=0x9d8 waiting on 
condition
 [0x00000000..0x00000000]

"Finalizer" daemon prio=9 tid=0x00a48490 nid=0xa0c in Object.wait() 
[0x02b8f000..0x02b8fc68]
        at java.lang.Object.wait(Native Method)
        - waiting on <0x22f7cbf8> (a java.lang.ref.ReferenceQueue$Lock)
        at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:116)
        - locked <0x22f7cbf8> (a java.lang.ref.ReferenceQueue$Lock)
        at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:132)
        at java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:159)

"Reference Handler" daemon prio=10 tid=0x00a47008 nid=0xec0 in Object.wait() 
[0x02b4f000..0x02b4fce8]
        at java.lang.Object.wait(Native Method)
        - waiting on <0x22f7cc78> (a java.lang.ref.Reference$Lock)
        at java.lang.Object.wait(Object.java:474)
        at java.lang.ref.Reference$ReferenceHandler.run(Reference.java:116)
        - locked <0x22f7cc78> (a java.lang.ref.Reference$Lock)

"main" prio=5 tid=0x00036890 nid=0x104 runnable [0x0007e000..0x0007fc3c]
        at java.util.zip.ZipFile.close(Native Method)
        at java.util.zip.ZipFile.close(ZipFile.java:481)
        - locked <0x22a83b40> (a java.util.jar.JarFile)
        at 
com.sun.tools.javac.util.Paths$Path.addJarClassPath(Paths.java:254)
        at com.sun.tools.javac.util.Paths$Path.addFile(Paths.java:223)
        at com.sun.tools.javac.util.Paths$Path.addFiles(Paths.java:205)
        at com.sun.tools.javac.util.Paths$Path.addFiles(Paths.java:210)
        at 
com.sun.tools.javac.util.Paths.computeUserClassPath(Paths.java:307)
        at com.sun.tools.javac.util.Paths.lazy(Paths.java:78)
        at com.sun.tools.javac.util.Paths.bootClassPath(Paths.java:91)
        at com.sun.tools.javac.jvm.ClassReader.fillIn(ClassReader.java:1901)
        at 
com.sun.tools.javac.jvm.ClassReader.complete(ClassReader.java:1538)
        at com.sun.tools.javac.code.Symbol.complete(Symbol.java:355)
        at com.sun.tools.javac.comp.Enter.visitTopLevel(Enter.java:249)
        at com.sun.tools.javac.tree.Tree$TopLevel.accept(Tree.java:382)
        at com.sun.tools.javac.comp.Enter.classEnter(Enter.java:214)
        at com.sun.tools.javac.comp.Enter.classEnter(Enter.java:228)
        at com.sun.tools.javac.comp.Enter.complete(Enter.java:441)
        at com.sun.tools.javac.comp.Enter.main(Enter.java:426)
        at 
com.sun.tools.javac.main.JavaCompiler.compile(JavaCompiler.java:413)
        at com.sun.tools.javac.main.Main.compile(Main.java:592)
        at com.sun.tools.javac.main.Main.compile(Main.java:544)
        at com.sun.tools.javac.Main.compile(Main.java:67)
        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:585)
        at 
org.apache.tools.ant.taskdefs.compilers.Javac13.execute(Javac13.java:55)
        at org.apache.tools.ant.taskdefs.Javac.compile(Javac.java:931)
        at org.apache.tools.ant.taskdefs.Javac.execute(Javac.java:757)
        at 
org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:275)
        at org.apache.tools.ant.Task.perform(Task.java:364)
        at org.apache.tools.ant.Target.execute(Target.java:341)
        at org.apache.tools.ant.Target.performTasks(Target.java:369)
        at 
org.apache.tools.ant.Project.executeSortedTargets(Project.java:1216)
        at 
org.apache.tools.ant.helper.SingleCheckExecutor.executeTargets(SingleCheckExecutor.java:37)
        at org.apache.tools.ant.Project.executeTargets(Project.java:1068)
        at org.apache.tools.ant.taskdefs.Ant.execute(Ant.java:382)
        at 
org.apache.tools.ant.taskdefs.CallTarget.execute(CallTarget.java:107)

        at 
org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:275)
        at org.apache.tools.ant.Task.perform(Task.java:364)
        at org.apache.tools.ant.Target.execute(Target.java:341)
        at org.apache.tools.ant.Target.performTasks(Target.java:369)
        at 
org.apache.tools.ant.Project.executeSortedTargets(Project.java:1216)
        at org.apache.tools.ant.Project.executeTarget(Project.java:1185)
        at 
org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:40)
        at org.apache.tools.ant.Project.executeTargets(Project.java:1068)
        at org.apache.tools.ant.Main.runBuild(Main.java:668)
        at org.apache.tools.ant.Main.startAnt(Main.java:187)
        at org.apache.tools.ant.launch.Launcher.run(Launcher.java:246)
        at org.apache.tools.ant.launch.Launcher.main(Launcher.java:67)

"VM Thread" prio=10 tid=0x00a686f8 nid=0x5cc runnable

"VM Periodic Task Thread" prio=10 tid=0x00a70638 nid=0xa14 waiting on 
condition

"John Arthorne" <john@xxxxxxxxxxxxxx> wrote in message 
news:djj1bq$q4f$3@xxxxxxxxxxxxxxxxxxx
> You can try getting a heap dump from Java to see where the time is going. 
> Ctrl+Break on the Java console in Windows, or kill -3 to the java process 
> on *nix platforms.  Without this kind of information it is hard to give 
> further advice.
> --
>
> Paul wrote:
>> Hi,
>>
>> I am trying to build my project with ant and it works very slow. For 
>> instance my co-worker can do the build of the project in 30 seconds 
>> whereas it takes me 10 minutes. Does anyone have any ideas on what the 
>> problem could be?
>>
>> Thanks