je lance un batch pour executer la commande suivante:
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ant compress >> batch_compress_${JMY}.log
le build.xml :
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<target name="compress" description="Compress">
		<java classname="com.newbatch.compress.Zippe"  lasspathref="cp" fork="true">
<jvmarg value="-Xmx1024m" />
et j ai l'exception IO suivante:
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 [java] /exec/applis//compress/build.xml:20: java.io.IOException: java.io.IOException: /exec/products/jrockit-R26.4.0-jdk1.5.0_06/jre/bin/java: cannot execute
     [java]     at org.apache.tools.ant.taskdefs.Java.fork(Java.java:753)
     [java]     at org.apache.tools.ant.taskdefs.Java.executeJava(Java.java:170)
     [java]     at org.apache.tools.ant.taskdefs.Java.execute(Java.java:83)
     [java]     at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:275)
     [java]     at org.apache.tools.ant.Task.perform(Task.java:364)
     [java]     at org.apache.tools.ant.Target.execute(Target.java:341)
     [java]     at org.apache.tools.ant.Target.performTasks(Target.java:369)
     [java]     at org.apache.tools.ant.Project.executeTarget(Project.java:1214)
     [java]     at org.apache.tools.ant.Project.executeTargets(Project.java:1062)
     [java]     at org.apache.tools.ant.Main.runBuild(Main.java:673)
     [java]     at org.apache.tools.ant.Main.startAnt(Main.java:188)
     [java]     at org.apache.tools.ant.launch.Launcher.run(Launcher.java:196)
     [java]     at org.apache.tools.ant.launch.Launcher.main(Launcher.java:55)
     [java] Caused by: java.io.IOException: java.io.IOException: /exec/products/jrockit-R26.4.0-jdk1.5.                                               0_06/jre/bin/java: cannot execute
     [java]     at java.lang.UNIXProcess.<init>(UNIXProcess.java:148)
     [java]     at java.lang.ProcessImpl.start(ProcessImpl.java:65)
     [java]     at java.lang.ProcessBuilder.start(ProcessBuilder.java:451)
     [java]     at java.lang.Runtime.exec(Runtime.java:591)
     [java]     at jrockit.reflect.VirtualNativeMethodInvoker.invoke(Ljava.lang.Object;[Ljava.lang.Object;)Ljava.lang.Object;(Unknown Source)
     [java]     at java.lang.reflect.Method.invoke(Ljava.lang.Object;[Ljava.lang.Object;I)Ljava.lang.Ob                                               ject;(Unknown Source)
     [java]     at org.apache.tools.ant.taskdefs.Execute$Java13CommandLauncher.exec(Execute.java:831)
     [java]     at org.apache.tools.ant.taskdefs.Execute.launch(Execute.java:436)
     [java]     at org.apache.tools.ant.taskdefs.Execute.execute(Execute.java:450)
     [java]     at org.apache.tools.ant.taskdefs.Java.fork(Java.java:746)
     [java]     ... 12 more
     [java] --- Nested Exception ---
     [java] java.io.IOException: java.io.IOException: /exec/products/jrockit-R26.4.0-jdk1.5.0_06/jre/bin/java: cannot execute
     [java]     at java.lang.UNIXProcess.<init>(UNIXProcess.java:148)
     [java]     at java.lang.ProcessImpl.start(ProcessImpl.java:65)
     [java]     at java.lang.ProcessBuilder.start(ProcessBuilder.java:451)
     [java]     at java.lang.Runtime.exec(Runtime.java:591)
     [java]     at jrockit.reflect.VirtualNativeMethodInvoker.invoke(Ljava.lang.Object;[Ljava.lang.Obje                                               ct;)Ljava.lang.Object;(Unknown Source)
     [java]     at java.lang.reflect.Method.invoke(Ljava.lang.Object;[Ljava.lang.Object;I)Ljava.lang.Ob                                               ject;(Unknown Source)
     [java]     at org.apache.tools.ant.taskdefs.Execute$Java13CommandLauncher.exec(Execute.java:831)
     [java]     at org.apache.tools.ant.taskdefs.Execute.launch(Execute.java:436)
     [java]     at org.apache.tools.ant.taskdefs.Execute.execute(Execute.java:450)
     [java]     at org.apache.tools.ant.taskdefs.Java.fork(Java.java:746)
     [java]     at org.apache.tools.ant.taskdefs.Java.executeJava(Java.java:170)
     [java]     at org.apache.tools.ant.taskdefs.Java.execute(Java.java:83)
     [java]     at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:275)
     [java]     at org.apache.tools.ant.Task.perform(Task.java:364)
     [java]     at org.apache.tools.ant.Target.execute(Target.java:341)
     [java]     at org.apache.tools.ant.Target.performTasks(Target.java:369)
     [java]     at org.apache.tools.ant.Project.executeTarget(Project.java:1214)
     [java]     at org.apache.tools.ant.Project.executeTargets(Project.java:1062)
     [java]     at org.apache.tools.ant.Main.runBuild(Main.java:673)
     [java]     at org.apache.tools.ant.Main.startAnt(Main.java:188)
     [java]     at org.apache.tools.ant.launch.Launcher.run(Launcher.java:196)
     [java]     at org.apache.tools.ant.launch.Launcher.main(Launcher.java:55)