Originally posted by: SystemAdmin

Hello All,

I am trying to execute a java program (jar file) from a WTX 8.3 map using function JEXIT in map rule. The Java program produces 4 outputs against an input. Map execution is sometime producting 4 outputs and sometimes 2 outputs for the same input set up. Java program is thowing some exception while it is not able to produce 2 outputs.

I have pasted the log below.

Please note that command prompt (in DOS) execution of the java program (a jar file) is always producing 4 outputs.

Could you please advise if this is something to do with any specific set up in map.
Thanks,
Debnarayan

Called callerMethod() | XML parsed | Output 1 created : output1.txt | Output 2 created : output2.txtjava.lang.NullPointerException
at testjar.TestJarData.processOutput3(TestJarData.java:650)
at testjar.TestJarData.callerMethod(TestJarData.java:132)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:48)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:37)
at java.lang.reflect.Method.invoke(Method.java:600)
at com.ibm.websphere.dtx.dtxpi.MDispatchFunction.run(Unknown Source)
at com.ibm.websphere.dtx.dtxpi.MDispatchFunction.Dispatch(Unknown Source)
at com.ibm.websphere.dtx.runmerc.RunMerc.RunMap(Native Method)
at com.ibm.webshere.dtx.ui.eclipsebridge.RunMercAbstraction.RunMap(Unknown Source)
at com.ibm.websphere.dtx.ui.me.editors.MapEditDoc.RunMaps(Unknown Source)
at com.ibm.websphere.dtx.ui.me.editors.MapEditDoc.RunMaps(Unknown Source)
at com.ibm.websphere.dtx.ui.me.tree.MapNode.OnRunMap(Unknown Source)
at com.ibm.websphere.dtx.ui.me.menus.RunMapMenu.run(Unknown Source)
at org.eclipse.ui.internal.PluginAction.runWithEvent(PluginAction.java:251)
at org.eclipse.ui.internal.WWinPluginAction.runWithEvent(WWinPluginAction.java:229)
at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:583)
at org.eclipse.jface.action.ActionContributionItem.access$2(ActionContributionItem.java:500)
at org.eclipse.jface.action.ActionContributionItem$6.handleEvent(ActionContributionItem.java:452)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1003)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3840)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3439)
at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2384)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2348)
at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2200)
at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:495)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:288)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:490)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:113)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:193)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:386)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:48)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:37)
at java.lang.reflect.Method.invoke(Method.java:600)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:549)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:504)
at org.eclipse.equinox.launcher.Main.run(Main.java:1236)
at org.eclipse.equinox.launcher.Main.main(Main.java:1212)
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Originally posted by: SystemAdmin

If, for the same exact conditions,the JAva works fine from the command line (same exact conditions = same input, settings, etc..., down to the deepest detail) then this may have to do with the map.

However, the exception is a Null pointer exception, so my first guess if I was encountering the same issue would be that my Java code has a problem.
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Originally posted by: SystemAdmin

Yes Laurent(Satisco). Java program is same. I got a jar file.

Once, I tried to run the jar file from map rule. It is inconsistent.
Then, I tried to run the jar file directly (not a command line execution of the map executable file) from command prompt and it is running consistently.

java -jar testjar.jar <input file name as parameter>
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Originally posted by: SystemAdmin

what does the mapping rule look like ?
If the java program is reading a file, is it a file the map accesses previously ?

Understanding the purpose of the Java program might help.
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Originally posted by: SystemAdmin

Hi Laurent(Satisco),

I have written below map rule:

=VALID(
JEXIT("testjar.testData", "callerMethod", input_filename),
FAIL(LASTERRORMSG( ) + " " + LASTERRORCODE( ))
)

Yes, map accesses an input file and passes the file name with physical path to the Java program. The Java program reads the given input file and produces 4 output files.

PageSize is set to 64K and PageCount is set to 20 in the map.

The problem of not generating all outputs is consistent (producsing only first 2 outputs) for bigger input files.

Please let me know if any other information is needed.

Thanks a bunch for all your adivses.
Thanks,
Debnaryan
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