[gradle-dev] Exception with change detection

Mon, 26 Oct 2009 03:36:02 -0700 

Hi Adam,
I sometimes get the following exception with our Gradle build (after doing a -C rebuild it goes away). 

./gradlew check devB

FAILURE: Build aborted because of an internal error.

* What went wrong:

Build aborted because of an unexpected internal error. Please file an  
issue at: www.gradle.org.


* Try:
Run with -d option to get additional debug info.

* Exception is:
java.lang.NullPointerException: null

        at  
org.gradle.api.internal.changedetection.DefaultTaskArtifactStateRepository 
$OutputGenerators.invalidate(DefaultTaskArtifactStateRepository.java: 
151) [gradle-core-0.9-20091020112559+1100.jar:0.9-20091020112559+1100]
        at  
org.gradle.api.internal.changedetection.DefaultTaskArtifactStateRepository.getLastExecution 
(DefaultTaskArtifactStateRepository.java:102) [gradle- 
core-0.9-20091020112559+1100.jar:0.9-20091020112559+1100]
        at  
org.gradle.api.internal.changedetection.DefaultTaskArtifactStateRepository.getStateFor 
(DefaultTaskArtifactStateRepository.java:49) [gradle- 
core-0.9-20091020112559+1100.jar:0.9-20091020112559+1100]
        at  
org.gradle.api.internal.project.ExecutionShortCircuitTaskExecuter.execute 
(ExecutionShortCircuitTaskExecuter.java:51) [gradle- 
core-0.9-20091020112559+1100.jar:0.9-20091020112559+1100]
        at org.gradle.api.internal.tasks.SkipTaskExecuter.doExecute 
(SkipTaskExecuter.java:63) [gradle-core-0.9-20091020112559+1100.jar: 
0.9-20091020112559+1100]
        at org.gradle.api.internal.tasks.SkipTaskExecuter.execute 
(SkipTaskExecuter.java:36) [gradle-core-0.9-20091020112559+1100.jar: 
0.9-20091020112559+1100]
        at org.gradle.api.internal.AbstractTask.execute 
(AbstractTask.java:215) [gradle-core-0.9-20091020112559+1100.jar: 
0.9-20091020112559+1100]
        at org.gradle.execution.DefaultTaskGraphExecuter.executeTask 
(DefaultTaskGraphExecuter.java:167) [gradle- 
core-0.9-20091020112559+1100.jar:0.9-20091020112559+1100]
        at org.gradle.execution.DefaultTaskGraphExecuter.doExecute 
(DefaultTaskGraphExecuter.java:160) [gradle- 
core-0.9-20091020112559+1100.jar:0.9-20091020112559+1100]
        at org.gradle.execution.DefaultTaskGraphExecuter.execute 
(DefaultTaskGraphExecuter.java:78) [gradle- 
core-0.9-20091020112559+1100.jar:0.9-20091020112559+1100]
        at org.gradle.execution.TaskNameResolvingBuildExecuter.execute 
(TaskNameResolvingBuildExecuter.java:174) [gradle- 
core-0.9-20091020112559+1100.jar:0.9-20091020112559+1100]
        at org.gradle.execution.DelegatingBuildExecuter.execute 
(DelegatingBuildExecuter.java:54) [gradle- 
core-0.9-20091020112559+1100.jar:0.9-20091020112559+1100]
        at org.gradle.GradleLauncher.doBuildStages 
(GradleLauncher.java:193) [gradle-core-0.9-20091020112559+1100.jar: 
0.9-20091020112559+1100]
        at org.gradle.GradleLauncher.doBuild(GradleLauncher.java:128)  
[gradle-core-0.9-20091020112559+1100.jar:0.9-20091020112559+1100]
        at org.gradle.GradleLauncher.run(GradleLauncher.java:98)  
[gradle-core-0.9-20091020112559+1100.jar:0.9-20091020112559+1100]
        at org.gradle.Main.execute(Main.java:100) [gradle- 
core-0.9-20091020112559+1100.jar:0.9-20091020112559+1100]
        at org.gradle.Main.main(Main.java:44) [gradle- 
core-0.9-20091020112559+1100.jar:0.9-20091020112559+1100]
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native  
Method) [na:1.5.0]
        at sun.reflect.NativeMethodAccessorImpl.invoke 
(NativeMethodAccessorImpl.java:39) [na:1.5.0]
        at sun.reflect.DelegatingMethodAccessorImpl.invoke 
(DelegatingMethodAccessorImpl.java:25) [na:1.5.0]

        at java.lang.reflect.Method.invoke(Method.java:585) [na:1.5.0]

        at org.gradle.BootstrapMain.main(BootstrapMain.java:50)  
[gradle-core-0.9-20091020112559+1100.jar:0.9-20091020112559+1100]
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native  
Method) [na:1.5.0]
        at sun.reflect.NativeMethodAccessorImpl.invoke 
(NativeMethodAccessorImpl.java:39) [na:1.5.0]
        at sun.reflect.DelegatingMethodAccessorImpl.invoke 
(DelegatingMethodAccessorImpl.java:25) [na:1.5.0]

        at java.lang.reflect.Method.invoke(Method.java:585) [na:1.5.0]

        at org.gradle.wrapper.BootstrapMainStarter.start 
(BootstrapMainStarter.java:42) [gradle-wrapper.jar: 
0.8-20090925104210+1000]
        at org.gradle.wrapper.Wrapper.execute(Wrapper.java:58)  
[gradle-wrapper.jar:0.8-20090925104210+1000]
        at org.gradle.wrapper.WrapperMain.main(WrapperMain.java:39)  
[gradle-wrapper.jar:0.8-20090925104210+1000]


BUILD FAILED

- Hans

--
Hans Dockter
Gradle Project Manager
http://www.gradle.org

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