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From bugzi...@apache.org
Subject DO NOT REPLY [Bug 40839] New: - <javac> fails with NPE when compiling with eclipse ecj 3.1.x
Date Sun, 29 Oct 2006 02:44:08 GMT
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http://issues.apache.org/bugzilla/show_bug.cgi?id=40839

           Summary: <javac> fails with NPE when compiling with eclipse ecj
                    3.1.x
           Product: Ant
           Version: 1.7.0Beta3
          Platform: Other
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Core tasks
        AssignedTo: dev@ant.apache.org
        ReportedBy: caster@gentoo.org


Executing <javac> on any sources with ant 1.7 and ecj 3.1 (taken from eclipse
3.1.2) results in (-debug):

Apache Ant version 1.7.0Beta3 compiled on October 29 2006
Buildfile: build.xml
Adding reference: ant.PropertyHelper
Detected Java version: 1.5 in: /opt/sun-jdk-1.5.0.08/jre
Detected OS: Linux
Adding reference: ant.ComponentHelper
Setting ro project property: trigger.include -> true
Setting ro project property: build.compiler ->
org.eclipse.jdt.core.JDTCompilerAdapter
Setting ro project property: ant.file -> /home/caster/gentoo/ant/tst/build.xml
setting java.net.useSystemProxies to true
Adding reference: ant.projectHelper
Adding reference: ant.parsing.context
Adding reference: ant.targets
parsing buildfile /home/caster/gentoo/ant/tst/build.xml with URI =
file:/home/caster/gentoo/ant/tst/build.xml
Setting ro project property: ant.project.name -> test
Adding reference: test
Setting ro project property: ant.file.test -> /home/caster/gentoo/ant/tst/build.xml
Project base dir set to: /home/caster/gentoo/ant/tst
 +Target:
 +Target: compile
 +Target: prepare
 +Target: clean
Attempting to create object of type org.apache.tools.ant.helper.DefaultExecutor
Adding reference: ant.executor
Build sequence for target(s) `compile' is [compile]
Complete build sequence is [compile, prepare, clean, ]

compile:
[antlib:org.apache.tools.ant] Could not load definitions from resource
org/apache/tools/ant/antlib.xml. It could not be found.
fileset: Setup scanner in dir /home/caster/gentoo/ant/tst/src with patternSet{
includes: [Class1.java:if->trigger.include] excludes: [] }
    [javac] Class1.java added as Class1.class doesn't exist.
    [javac] Compiling 1 source file to /home/caster/gentoo/ant/tst/classes
    [javac] Using JDT compiler
dropping /opt/sun-jdk-1.5.0.08/jre/jre/lib/rt.jar from path as it doesn't exist
dropping /opt/sun-jdk-1.5.0.08/Classes/jce.jar from path as it doesn't exist
dropping /opt/sun-jdk-1.5.0.08/Classes/jsse.jar from path as it doesn't exist
dropping /opt/sun-jdk-1.5.0.08/jre/lib/core.jar from path as it doesn't exist
dropping /opt/sun-jdk-1.5.0.08/jre/lib/graphics.jar from path as it doesn't exist
dropping /opt/sun-jdk-1.5.0.08/jre/lib/security.jar from path as it doesn't exist
dropping /opt/sun-jdk-1.5.0.08/jre/lib/server.jar from path as it doesn't exist
dropping /opt/sun-jdk-1.5.0.08/jre/lib/xml.jar from path as it doesn't exist
dropping /opt/sun-jdk-1.5.0.08/Classes/classes.jar from path as it doesn't exist
dropping /opt/sun-jdk-1.5.0.08/Classes/ui.jar from path as it doesn't exist

BUILD FAILED
/home/caster/gentoo/ant/tst/build.xml:5: java.lang.NullPointerException
        at
org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:115)
        at org.apache.tools.ant.Task.perform(Task.java:342)
        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:1291)
        at org.apache.tools.ant.Project.executeTarget(Project.java:1260)
        at
org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:41)
        at org.apache.tools.ant.Project.executeTargets(Project.java:1143)
        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:298)
        at org.apache.tools.ant.launch.Launcher.main(Launcher.java:104)
Caused by: java.lang.NullPointerException
        at
org.apache.tools.ant.types.AbstractFileSet.setupDirectoryScanner(AbstractFileSet.java:467)
        at
org.apache.tools.ant.types.AbstractFileSet.getDirectoryScanner(AbstractFileSet.java:429)
        at org.apache.tools.ant.types.FileSet.iterator(FileSet.java:69)
        at org.apache.tools.ant.types.resources.Union.getCollection(Union.java:105)
        at org.apache.tools.ant.types.resources.Union.getCollection(Union.java:88)
        at
org.apache.tools.ant.types.resources.BaseResourceCollectionContainer.cacheCollection(BaseResourceCollectionContainer.java:244)
        at
org.apache.tools.ant.types.resources.BaseResourceCollectionContainer.toString(BaseResourceCollectionContainer.java:229)
        at org.apache.tools.ant.types.Path.toString(Path.java:333)
        at
org.apache.tools.ant.types.Commandline$Argument.setPath(Commandline.java:135)
        at
org.eclipse.jdt.core.JDTCompilerAdapter.setupJavacCommand(JDTCompilerAdapter.java:144)
        at
org.eclipse.jdt.core.JDTCompilerAdapter.execute(JDTCompilerAdapter.java:56)
        at org.apache.tools.ant.taskdefs.Javac.compile(Javac.java:995)
        at org.apache.tools.ant.taskdefs.Javac.execute(Javac.java:819)
        at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:281)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:585)
        at
org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:105)
        ... 11 more
--- Nested Exception ---
java.lang.NullPointerException
        at
org.apache.tools.ant.types.AbstractFileSet.setupDirectoryScanner(AbstractFileSet.java:467)
        at
org.apache.tools.ant.types.AbstractFileSet.getDirectoryScanner(AbstractFileSet.java:429)
        at org.apache.tools.ant.types.FileSet.iterator(FileSet.java:69)
        at org.apache.tools.ant.types.resources.Union.getCollection(Union.java:105)
        at org.apache.tools.ant.types.resources.Union.getCollection(Union.java:88)
        at
org.apache.tools.ant.types.resources.BaseResourceCollectionContainer.cacheCollection(BaseResourceCollectionContainer.java:244)
        at
org.apache.tools.ant.types.resources.BaseResourceCollectionContainer.toString(BaseResourceCollectionContainer.java:229)
        at org.apache.tools.ant.types.Path.toString(Path.java:333)
        at
org.apache.tools.ant.types.Commandline$Argument.setPath(Commandline.java:135)
        at
org.eclipse.jdt.core.JDTCompilerAdapter.setupJavacCommand(JDTCompilerAdapter.java:144)
        at
org.eclipse.jdt.core.JDTCompilerAdapter.execute(JDTCompilerAdapter.java:56)
        at org.apache.tools.ant.taskdefs.Javac.compile(Javac.java:995)
        at org.apache.tools.ant.taskdefs.Javac.execute(Javac.java:819)
        at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:281)
        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:342)
        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:1291)
        at org.apache.tools.ant.Project.executeTarget(Project.java:1260)
        at
org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:41)
        at org.apache.tools.ant.Project.executeTargets(Project.java:1143)
        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:298)
        at org.apache.tools.ant.launch.Launcher.main(Launcher.java:104)

Total time: 0 seconds


Happens with both beta3 and latest svn (468820).

What's interesting, ecj 3.2 works fine. But since it's different branch and not
just bugfix of 3.1, I believe it's still worth fixing. Also, ant 1.6.5 works
with both ecj 3.1 and 3.2 which suggests the problem is in ant, not ecj?

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