I'm having a spot of bother with a dependset - it is throwing a NPE. I'm
thought it used work on ant 1.6.5, but having just re-tried it, it seems to
fail in the same way. I'm not having much luck boiling down an exact test
case, although it seems to be something to do with either number of files or
path lengths - reducing the path length of dir5 did not to produce the error.
Platform: windows
JRE: 1.5.0_06
Ant: 1.7.0
The ant script is similar to the one below, with the directories being fairly
long. There are a fair number of subdirectories and files, but not vast - it
works fine with other much greater directories.
<project name="test" default="test">
<target name="test">
<dependset>
<srcfileset dir="dir1"/>
<srcfileset dir="dir2"/>
<srcfileset dir="dir3"/>
<targetfileset dir="dir5"/>
</dependset>
</target>
</project>
Stack trace:
C:\temp\dependstest\build.xml:4: java.lang.NullPointerException
at
org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:115)
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:1329)
at org.apache.tools.ant.Project.executeTarget(Project.java:1298)
at
org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:41)
at org.apache.tools.ant.Project.executeTargets(Project.java:1181)
at org.apache.tools.ant.Main.runBuild(Main.java:698)
at org.apache.tools.ant.Main.startAnt(Main.java:199)
at org.apache.tools.ant.launch.Launcher.run(Launcher.java:257)
at org.apache.tools.ant.launch.Launcher.main(Launcher.java:104)
Caused by: java.lang.NullPointerException
at
org.apache.tools.ant.types.resources.Sort$SortedBag$MutableInt.access$100(Sort.java:44)
at
org.apache.tools.ant.types.resources.Sort$SortedBag$MyIterator.next(Sort.java:60)
at org.apache.tools.ant.types.resources.FailFast.next(FailFast.java:115)
at org.apache.tools.ant.taskdefs.DependSet.uptodate(DependSet.java:233)
at org.apache.tools.ant.taskdefs.DependSet.execute(DependSet.java:202)
at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:288)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at
org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:105)
... 11 more
--- Nested Exception ---
java.lang.NullPointerException
at
org.apache.tools.ant.types.resources.Sort$SortedBag$MutableInt.access$100(Sort.java:44)
at
org.apache.tools.ant.types.resources.Sort$SortedBag$MyIterator.next(Sort.java:60)
at org.apache.tools.ant.types.resources.FailFast.next(FailFast.java:115)
at org.apache.tools.ant.taskdefs.DependSet.uptodate(DependSet.java:233)
at org.apache.tools.ant.taskdefs.DependSet.execute(DependSet.java:202)
at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:288)
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.dispatch.DispatchUtils.execute(DispatchUtils.java:105)
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:1329)
at org.apache.tools.ant.Project.executeTarget(Project.java:1298)
at
org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:41)
at org.apache.tools.ant.Project.executeTargets(Project.java:1181)
at org.apache.tools.ant.Main.runBuild(Main.java:698)
at org.apache.tools.ant.Main.startAnt(Main.java:199)
at org.apache.tools.ant.launch.Launcher.run(Launcher.java:257)
at org.apache.tools.ant.launch.Launcher.main(Launcher.java:104)
Any help much appreciated.
Oliver
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