Thank you for looking into this issue.

I am running jvm with jacocoagent which is creating this file but I ail to 
understand why file is getting corrupted.

-javaagent:/tmp/jacoco/jacocoagent.jar=destfile=/tmp/myproject_coverage/
myprojectcoverage_
${HOST}.exec,append=true,output=file,inclbootstrapclasses=true,inclnolocationclasses=true"



On Monday, May 13, 2019 at 1:33:58 PM UTC+5:30, Marc R. Hoffmann wrote:
>
> org.gradle.api.tasks.TaskExecutionException: Execution failed for task 
> ':myproject:jacocoMergeTest'.
> Caused by: : Unable to read /tmp/abcuser/myprojectcoverage_.exec
> Caused by: java.io.IOException: Unknown block type 0.
>
>
> ==> myprojectcoverage_.exec is not a valid exec file. 
>
>
> On 2019-05-13 09:44, rverm wrote:
>
> This is the output with --stacktrace
>  
> FAILURE: Build failed with an exception.
>  
> * What went wrong:
> Execution failed for task ':myproject:jacocoMergeTest'.
> > Unable to read /tmp/abcuser/myprojectcoverage_.exec
>  
> * Try:
> Run with --info or --debug option to get more log output.
>  
> * Exception is:
> org.gradle.api.tasks.TaskExecutionException: Execution failed for task 
> ':myproject:jacocoMergeTest'.
>         at 
> org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeActions(ExecuteActionsTaskExecuter.java:98)
>         at 
> org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.execute(ExecuteActionsTaskExecuter.java:68)
>   
>      
>         at 
> org.gradle.api.internal.tasks.execution.SkipUpToDateTaskExecuter.execute(SkipUpToDateTaskExecuter.java:62)
>   
>          
>         at 
> org.gradle.api.internal.tasks.execution.ValidatingTaskExecuter.execute(ValidatingTaskExecuter.java:58)
>   
>              
>         at 
> org.gradle.api.internal.tasks.execution.SkipEmptySourceFilesTaskExecuter.execute(SkipEmptySourceFilesTaskExecuter.java:88)
>         at 
> org.gradle.api.internal.tasks.execution.ResolveTaskArtifactStateTaskExecuter.execute(ResolveTaskArtifactStateTaskExecuter.java:46)
>         at 
> org.gradle.api.internal.tasks.execution.SkipTaskWithNoActionsExecuter.execute(SkipTaskWithNoActionsExecuter.java:51)
>   
>             
>         at 
> org.gradle.api.internal.tasks.execution.SkipOnlyIfTaskExecuter.execute(SkipOnlyIfTaskExecuter.java:54)
>   
>                           
>         at 
> org.gradle.api.internal.tasks.execution.ExecuteAtMostOnceTaskExecuter.execute(ExecuteAtMostOnceTaskExecuter.java:43)
>   
>             
>         at 
> org.gradle.api.internal.tasks.execution.CatchExceptionTaskExecuter.execute(CatchExceptionTaskExecuter.java:34)
>   
>                   
>         at 
> org.gradle.execution.taskgraph.DefaultTaskGraphExecuter$EventFiringTaskWorker$1.execute(DefaultTaskGraphExecuter.java:236)
>   
>       
>         at 
> org.gradle.execution.taskgraph.DefaultTaskGraphExecuter$EventFiringTaskWorker$1.execute(DefaultTaskGraphExecuter.java:228)
>   
>       
>         at 
> org.gradle.internal.Transformers$4.transform(Transformers.java:169)        
>                                                        
>         at 
> org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:106)
>   
>                           
>         at 
> org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:61)
>   
>                            
>         at 
> org.gradle.execution.taskgraph.DefaultTaskGraphExecuter$EventFiringTaskWorker.execute(DefaultTaskGraphExecuter.java:228)
>   
>         
>         at 
> org.gradle.execution.taskgraph.DefaultTaskGraphExecuter$EventFiringTaskWorker.execute(DefaultTaskGraphExecuter.java:215)
>   
>         
>         at 
> org.gradle.execution.taskgraph.AbstractTaskPlanExecutor$TaskExecutorWorker.processTask(AbstractTaskPlanExecutor.java:77)
>   
>         
>         at 
> org.gradle.execution.taskgraph.AbstractTaskPlanExecutor$TaskExecutorWorker.run(AbstractTaskPlanExecutor.java:58)
>   
>                 
>         at 
> org.gradle.execution.taskgraph.DefaultTaskPlanExecutor.process(DefaultTaskPlanExecutor.java:32)
>   
>                                  
>         at 
> org.gradle.execution.taskgraph.DefaultTaskGraphExecuter.execute(DefaultTaskGraphExecuter.java:113)
>   
>                               
>         at 
> org.gradle.execution.SelectedTaskExecutionAction.execute(SelectedTaskExecutionAction.java:37)
>   
>                                    
>         at 
> org.gradle.execution.DefaultBuildExecuter.execute(DefaultBuildExecuter.java:37)
>   
>                                                  
>         at 
> org.gradle.execution.DefaultBuildExecuter.access$000(DefaultBuildExecuter.java:23)
>   
>                                               
>         at 
> org.gradle.execution.DefaultBuildExecuter$1.proceed(DefaultBuildExecuter.java:43)
>   
>                                                
>         at 
> org.gradle.execution.DryRunBuildExecutionAction.execute(DryRunBuildExecutionAction.java:32)
>   
>                                      
>         at 
> org.gradle.execution.DefaultBuildExecuter.execute(DefaultBuildExecuter.java:37)
>   
>                                                  
>         at 
> org.gradle.execution.DefaultBuildExecuter.execute(DefaultBuildExecuter.java:30)
>   
>                                                  
>         at 
> org.gradle.initialization.DefaultGradleLauncher$RunTasksAction.execute(DefaultGradleLauncher.java:230)
>   
>                           
>         at 
> org.gradle.initialization.DefaultGradleLauncher$RunTasksAction.execute(DefaultGradleLauncher.java:227)
>   
>                           
>         at 
> org.gradle.internal.Transformers$4.transform(Transformers.java:169)        
>                                                        
>         at 
> org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:106)
>   
>                           
>         at 
> org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:56)
>   
>                            
>         at 
> org.gradle.initialization.DefaultGradleLauncher.doBuildStages(DefaultGradleLauncher.java:161)
>   
>                                    
>         at 
> org.gradle.initialization.DefaultGradleLauncher.doBuild(DefaultGradleLauncher.java:112)
>   
>                                          
>         at 
> org.gradle.initialization.DefaultGradleLauncher.run(DefaultGradleLauncher.java:95)
>   
>                                               
>         at 
> org.gradle.launcher.exec.GradleBuildController.run(GradleBuildController.java:66)
>   
>                                                
>         at 
> org.gradle.tooling.internal.provider.ExecuteBuildActionRunner.run(ExecuteBuildActionRunner.java:28)
>   
>                              
>         at 
> org.gradle.launcher.exec.ChainingBuildActionRunner.run(ChainingBuildActionRunner.java:35)
>   
>                                        
>         at 
> org.gradle.launcher.exec.InProcessBuildActionExecuter.execute(InProcessBuildActionExecuter.java:41)
>   
>                              
>         at 
> org.gradle.launcher.exec.InProcessBuildActionExecuter.execute(InProcessBuildActionExecuter.java:26)
>   
>                              
>         at 
> org.gradle.tooling.internal.provider.ContinuousBuildActionExecuter.execute(ContinuousBuildActionExecuter.java:75)
>   
>                
>         at 
> org.gradle.tooling.internal.provider.ContinuousBuildActionExecuter.execute(ContinuousBuildActionExecuter.java:49)
>   
>                
>         at 
> org.gradle.tooling.internal.provider.ServicesSetupBuildActionExecuter.execute(ServicesSetupBuildActionExecuter.java:49)
>   
>          
>         at 
> org.gradle.tooling.internal.provider.ServicesSetupBuildActionExecuter.execute(ServicesSetupBuildActionExecuter.java:31)
>   
>          
>         at 
> org.gradle.launcher.daemon.server.exec.ExecuteBuild.doBuild(ExecuteBuild.java:67)
>   
>                                                
>         at 
> org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:36)
>   
>                                        
>         at 
> org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
>   
>                            
>         at 
> org.gradle.launcher.daemon.server.exec.WatchForDisconnection.execute(WatchForDisconnection.java:37)
>   
>                              
>         at 
> org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
>   
>                            
>         at 
> org.gradle.launcher.daemon.server.exec.ResetDeprecationLogger.execute(ResetDeprecationLogger.java:26)
>   
>                            
>         at 
> org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
>   
>                            
>         at 
> org.gradle.launcher.daemon.server.exec.RequestStopIfSingleUsedDaemon.execute(RequestStopIfSingleUsedDaemon.java:34)
>   
>              
>         at 
> org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
>   
>                            
>         at 
> org.gradle.launcher.daemon.server.exec.ForwardClientInput$2.call(ForwardClientInput.java:74)
>   
>                                     
>         at 
> org.gradle.launcher.daemon.server.exec.ForwardClientInput$2.call(ForwardClientInput.java:72)
>   
>                                     
>         at org.gradle.util.Swapper.swap(Swapper.java:38)                  
>                                                                    
>         at 
> org.gradle.launcher.daemon.server.exec.ForwardClientInput.execute(ForwardClientInput.java:72)
>   
>                                    
>         at 
> org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
>   
>                            
>         at 
> org.gradle.launcher.daemon.server.exec.LogAndCheckHealth.execute(LogAndCheckHealth.java:55)
>   
>                                      
>         at 
> org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
>   
>                            
>         at 
> org.gradle.launcher.daemon.server.exec.LogToClient.doBuild(LogToClient.java:60)
>   
>                                                  
>         at 
> org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:36)
>   
>                                        
>         at 
> org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
>   
>                            
>         at 
> org.gradle.launcher.daemon.server.exec.EstablishBuildEnvironment.doBuild(EstablishBuildEnvironment.java:72)
>   
>                      
>         at 
> org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:36)
>   
>                                        
>         at 
> org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
>   
>                            
>         at 
> org.gradle.launcher.daemon.server.exec.StartBuildOrRespondWithBusy$1.run(StartBuildOrRespondWithBusy.java:50)
>   
>                    
>         at 
> org.gradle.launcher.daemon.server.DaemonStateCoordinator$1.run(DaemonStateCoordinator.java:297)
>   
>                                  
>         at 
> org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:63)
>   
>                           
>         at 
> org.gradle.internal.concurrent.StoppableExecutorImpl$1.run(StoppableExecutorImpl.java:46)
>   
>                                        
> Caused by: : Unable to read /tmp/abcuser/myprojectcoverage_.exec          
>                                  
>         at org.jacoco.ant.MergeTask.load(MergeTask.java:87)                
>                                                                   
>         at org.jacoco.ant.MergeTask.execute(MergeTask.java:67)            
>                                                                    
>         at 
> org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:293)        
>                                                       
>         at 
> org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106)  
>                                                      
>         at 
> org.gradle.api.internal.project.ant.BasicAntBuilder.nodeCompleted(BasicAntBuilder.java:78)
>   
>                                       
>         at 
> org.gradle.internal.metaobject.BeanDynamicObject$MetaClassAdapter.invokeMethod(BeanDynamicObject.java:464)
>   
>                       
>         at 
> org.gradle.internal.metaobject.BeanDynamicObject.invokeMethod(BeanDynamicObject.java:176)
>   
>                                        
>         at 
> org.gradle.internal.metaobject.AbstractDynamicObject.invokeMethod(AbstractDynamicObject.java:163)
>   
>                                
>         at 
> org.gradle.api.internal.project.antbuilder.AntBuilderDelegate.nodeCompleted(AntBuilderDelegate.java:118)
>         at 
> org.gradle.internal.jacoco.AntJacocoMerge$1.doCall(AntJacocoMerge.java:46)
>         at 
> org.gradle.api.internal.ClosureBackedAction.execute(ClosureBackedAction.java:71)
>         at 
> org.gradle.api.internal.ClosureBackedAction.execute(ClosureBackedAction.java:53)
>         at 
> org.gradle.api.internal.project.antbuilder.DefaultIsolatedAntBuilder$2.execute(DefaultIsolatedAntBuilder.java:151)
>         at 
> org.gradle.api.internal.project.antbuilder.DefaultIsolatedAntBuilder$2.execute(DefaultIsolatedAntBuilder.java:133)
>         at 
> org.gradle.api.internal.project.antbuilder.ClassPathToClassLoaderCache.withCachedClassLoader(ClassPathToClassLoaderCache.java:134)
>         at 
> org.gradle.api.internal.project.antbuilder.DefaultIsolatedAntBuilder.execute(DefaultIsolatedAntBuilder.java:127)
>         at 
> org.gradle.internal.jacoco.AntJacocoMerge.execute(AntJacocoMerge.java:37)
>         at 
> org.gradle.testing.jacoco.tasks.JacocoMerge.merge(JacocoMerge.java:79)
>         at 
> org.gradle.internal.reflect.JavaMethod.invoke(JavaMethod.java:73)
>         at 
> org.gradle.api.internal.project.taskfactory.DefaultTaskClassInfoStore$StandardTaskAction.doExecute(DefaultTaskClassInfoStore.java:141)
>         at 
> org.gradle.api.internal.project.taskfactory.DefaultTaskClassInfoStore$StandardTaskAction.execute(DefaultTaskClassInfoStore.java:134)
>         at 
> org.gradle.api.internal.project.taskfactory.DefaultTaskClassInfoStore$StandardTaskAction.execute(DefaultTaskClassInfoStore.java:123)
>         at 
> org.gradle.api.internal.AbstractTask$TaskActionWrapper.execute(AbstractTask.java:692)
>         at 
> org.gradle.api.internal.AbstractTask$TaskActionWrapper.execute(AbstractTask.java:675)
>         at 
> org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter$1.execute(ExecuteActionsTaskExecuter.java:115)
>         at 
> org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter$1.execute(ExecuteActionsTaskExecuter.java:109)
>         at 
> org.gradle.internal.Transformers$4.transform(Transformers.java:169)
>         at 
> org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:106)
>         at 
> org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:56)
>         at 
> org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeAction(ExecuteActionsTaskExecuter.java:109)
>         at 
> org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeActions(ExecuteActionsTaskExecuter.java:90)
>         ... 70 more
> Caused by: java.io.IOException: Unknown block type 0.
>         at 
> org.jacoco.core.data.ExecutionDataReader.readBlock(ExecutionDataReader.java:118)
>         at 
> org.jacoco.core.data.ExecutionDataReader.read(ExecutionDataReader.java:92)
>         at 
> org.jacoco.core.tools.ExecFileLoader.load(ExecFileLoader.java:59)
>         at org.jacoco.ant.MergeTask.load(MergeTask.java:85)
>         ... 100 more
>  
>  
> BUILD FAILED
>  
> Total time: 1 mins 25.713 secs
>
> On Monday, May 13, 2019 at 12:56:42 PM UTC+5:30, Marc R. Hoffmann wrote: 
>>
>> * Try:                                                                    
>>              
>> Run with --stacktrace option to get the stack trace.
>>  
>>
>> On 12. May 2019, at 22:09, rverm <[email protected] 
>> <#[email protected]_NOP>> wrote:
>>
>> 21:39:54.545 [DEBUG] 
>> [org.gradle.api.internal.tasks.execution.ResolveTaskArtifactStateTaskExecuter]
>>  
>> Removed task artifact state for {} from context.                 
>> 21:39:54.545 [DEBUG] 
>> [org.gradle.api.internal.tasks.execution.ExecuteAtMostOnceTaskExecuter] 
>> Finished executing task ':myproject:jacocoMergeTest'                     
>> 21:39:54.545 [LIFECYCLE] [class 
>> org.gradle.internal.buildevents.TaskExecutionLogger] 
>> :myproject:jacocoMergeTest FAILED                                          
>>       
>> 21:39:54.546 [INFO] 
>> [org.gradle.execution.taskgraph.AbstractTaskPlanExecutor] 
>> :myproject:jacocoMergeTest (Thread[Daemon worker Thread 3,5,main]) 
>> completed. Took 6 mins 4.752 secs.                                          
>>                                                                             
>>                                   
>> 21:39:54.546 [DEBUG] 
>> [org.gradle.internal.operations.DefaultBuildOperationWorkerRegistry] Worker 
>> root.1 completed (0 in use)                                         
>> 21:39:54.546 [DEBUG] 
>> [org.gradle.execution.taskgraph.AbstractTaskPlanExecutor] Task worker 
>> [Thread[Daemon worker Thread 3,5,main]] finished, busy: 6 mins 4.752 secs, 
>> idle: 0.0 secs                                                              
>>                                                                             
>>             
>> 21:39:54.547 [ERROR] 
>> [org.gradle.internal.buildevents.BuildExceptionReporter]                    
>>                                                                     
>> 21:39:54.547 [ERROR] 
>> [org.gradle.internal.buildevents.BuildExceptionReporter] FAILURE: Build 
>> failed with an exception.                                               
>> 21:39:54.547 [ERROR] 
>> [org.gradle.internal.buildevents.BuildExceptionReporter]                    
>>                                                                     
>> 21:39:54.547 [ERROR] 
>> [org.gradle.internal.buildevents.BuildExceptionReporter] * What went 
>> wrong:                                                                     
>> 21:39:54.547 [ERROR] 
>> [org.gradle.internal.buildevents.BuildExceptionReporter] Execution failed 
>> for task ':myproject:jacocoMergeTest'.                                 
>> 21:39:54.547 [ERROR] 
>> [org.gradle.internal.buildevents.BuildExceptionReporter] > Unable to read 
>> /tmp/myprojectcoverage.exec 
>> 21:39:54.547 [ERROR] 
>> [org.gradle.internal.buildevents.BuildExceptionReporter]                    
>>                                                                     
>> 21:39:54.547 [ERROR] 
>> [org.gradle.internal.buildevents.BuildExceptionReporter] * Try:            
>>                                                                      
>> 21:39:54.547 [ERROR] 
>> [org.gradle.internal.buildevents.BuildExceptionReporter] Run with 
>> --stacktrace option to get the stack trace.                                
>>    
>> 21:39:54.547 [LIFECYCLE] 
>> [org.gradle.internal.buildevents.BuildResultLogger]                        
>>                                                                  
>> 21:39:54.547 [LIFECYCLE] 
>> [org.gradle.internal.buildevents.BuildResultLogger] BUILD FAILED   
>>  
>> Using Jacoco 0.8.3 version
>>  
>>  
>> within build.gradle
>>  
>> def allTestCoverageFile = "/tmp/abcuser/allMerge.exec"
>> apply plugin: "org.sonarqube"
>> apply plugin: "jacoco"
>>  
>> jacoco {
>> toolVersion = "0.8.3"
>> }
>> sonarqube {
>> properties {
>> property "sonar.projectKey", "myproject"
>> property "sonar.projectName", "myproject"
>> property 'sonar.host.url', 'http://url'
>> property "sonar.jacoco.reportPaths", 'allTestCoverageFile'
>> }}
>>  
>> task jacocoMergeTest(type: JacocoMerge) {
>> destinationFile = file(allTestCoverageFile)
>> executionData = project.fileTree(dir: '/tmp/abcuser/', include:'*.exec')
>> }
>> task jacocoMerge(dependsOn: ['jacocoMergeTest']) {
>> }
>> subprojects {
>> sonarqube {
>> properties {
>> property "sonar.jacoco.reportPath", "allTestCoverageFile"
>> }}}
>>        
>>  
>> -- 
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>> <#[email protected]_NOP>.
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>>  
>> <https://groups.google.com/d/msgid/jacoco/97afe793-294a-490e-98ec-9e1d0fc0958f%40googlegroups.com?utm_medium=email&utm_source=footer>
>> .
>> For more options, visit https://groups.google.com/d/optout.
>>
>>
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>  
> <https://groups.google.com/d/msgid/jacoco/002bfae5-f546-4ab3-a448-37b89eef20fb%40googlegroups.com?utm_medium=email&utm_source=footer>
> .
> For more options, visit https://groups.google.com/d/optout.
>
>
>

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