I'm using the same version of Gradle, 1.7 jdk thus not exactly the same version.

The main complain of the testing is :

> 
> java.lang.NoClassDefFoundError:
>  org/apache/maven/artifact/ant/DependenciesTask Caused by:
>  java.lang.ClassNotFoundException:
>  org.apache.maven.artifact.ant.DependenciesTask
> 
> 
> 

I've tried to clean gradle cache in order to re download all dependencies.
Also i've tried to clean the project.

This didn't work.

What variables can affect the execution of a gradle test ? 

To me there is:

* Gradle itself
* Java version of the sdk
* Internet connections problems

What else can be interfering ? **Are plugin versions platform dependant** ?

```
Executing task ':robolectric-tests:test' (up-to-date check took 0.432 secs) due to:
  Output file /home/ec2-user/repositories/MyProject/robolectric-tests/build/test-results has changed.
  Output file /home/ec2-user/repositories/MyProject/robolectric-tests/build/reports/tests has changed.
  Output file /home/ec2-user/repositories/MyProject/robolectric-tests/build/test-results/binary/test has changed.
Starting process 'Gradle Test Executor 1'. Working directory: /home/ec2-user/repositories/MyProject/robolectric-tests Command: /usr/java/jdk1.7.0_72/bin/java -Djava.security.manager=jarjar.org.gradle.process.internal.child.BootstrapSecurityManager -Dfile.encoding=UTF-8 -Duser.country=ES -Duser.language=ca -Duser.variant -ea -cp /home/ec2-user/.gradle/caches/2.3/workerMain/gradle-worker.jar jarjar.org.gradle.process.internal.launcher.GradleWorkerMain 'Gradle Test Executor 1'
Successfully started process 'Gradle Test Executor 1'
Gradle Test Executor 1 started executing tests.
Gradle Test Executor 1 finished executing tests.

com.tubtale.MyProject.robolectrictests.tests.RobTMyAndroidClassTest > testWhenActivityCreatedHelloTextViewIsVisible2 FAILED
    java.lang.NoClassDefFoundError: org/apache/maven/artifact/ant/DependenciesTask

        Caused by:
        java.lang.ClassNotFoundException: org.apache.maven.artifact.ant.DependenciesTask

com.tubtale.MyProject.robolectrictests.tests.RobTMyAndroidClassTest > testWhenActivityCreatedHelloTextViewIsVisible FAILED
    java.lang.NoClassDefFoundError: org/apache/maven/artifact/ant/DependenciesTask

2 tests completed, 2 failed
Finished generating test XML results (0.217 secs) into: /home/ec2-user/repositories/MyProject/robolectric-tests/build/test-results
Generating HTML test report...
Finished generating test html results (0.11 secs) into: /home/ec2-user/repositories/MyProject/robolectric-tests/build/reports/tests
:robolectric-tests:test FAILED
:robolectric-tests:test (Thread[main,5,main]) completed. Took 4.005 secs.

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':robolectric-tests:test'.
> There were failing tests. See the report at: file:///home/ec2-user/repositories/MyProject/robolectric-tests/build/reports/tests/index.html

* Try:
Run with --debug option to get more log output.

* Exception is:
org.gradle.api.tasks.TaskExecutionException: Execution failed for task ':robolectric-tests:test'.
    at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeActions(ExecuteActionsTaskExecuter.java:69)
    at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.execute(ExecuteActionsTaskExecuter.java:46)
    at org.gradle.api.internal.tasks.execution.PostExecutionAnalysisTaskExecuter.execute(PostExecutionAnalysisTaskExecuter.java:35)
    at org.gradle.api.internal.tasks.execution.SkipUpToDateTaskExecuter.execute(SkipUpToDateTaskExecuter.java:64)
    at org.gradle.api.internal.tasks.execution.ValidatingTaskExecuter.execute(ValidatingTaskExecuter.java:58)
    at org.gradle.api.internal.tasks.execution.SkipEmptySourceFilesTaskExecuter.execute(SkipEmptySourceFilesTaskExecuter.java:42)
    at org.gradle.api.internal.tasks.execution.SkipTaskWithNoActionsExecuter.execute(SkipTaskWithNoActionsExecuter.java:52)
    at org.gradle.api.internal.tasks.execution.SkipOnlyIfTaskExecuter.execute(SkipOnlyIfTaskExecuter.java:53)
    at org.gradle.api.internal.tasks.execution.ExecuteAtMostOnceTaskExecuter.execute(ExecuteAtMostOnceTaskExecuter.java:43)
    at org.gradle.api.internal.AbstractTask.executeWithoutThrowingTaskFailure(AbstractTask.java:306)
    at org.gradle.execution.taskgraph.AbstractTaskPlanExecutor$TaskExecutorWorker.executeTask(AbstractTaskPlanExecutor.java:79)
    at org.gradle.execution.taskgraph.AbstractTaskPlanExecutor$TaskExecutorWorker.processTask(AbstractTaskPlanExecutor.java:63)
    at org.gradle.execution.taskgraph.AbstractTaskPlanExecutor$TaskExecutorWorker.run(AbstractTaskPlanExecutor.java:51)
    at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor.process(DefaultTaskPlanExecutor.java:23)
    at org.gradle.execution.taskgraph.DefaultTaskGraphExecuter.execute(DefaultTaskGraphExecuter.java:88)
    at org.gradle.execution.SelectedTaskExecutionAction.execute(SelectedTaskExecutionAction.java:29)
    at org.gradle.execution.DefaultBuildExecuter.execute(DefaultBuildExecuter.java:62)
    at org.gradle.execution.DefaultBuildExecuter.access$200(DefaultBuildExecuter.java:23)
    at org.gradle.execution.DefaultBuildExecuter$2.proceed(DefaultBuildExecuter.java:68)
    at org.gradle.execution.DryRunBuildExecutionAction.execute(DryRunBuildExecutionAction.java:32)
    at org.gradle.execution.DefaultBuildExecuter.execute(DefaultBuildExecuter.java:62)
    at org.gradle.execution.DefaultBuildExecuter.execute(DefaultBuildExecuter.java:55)
    at org.gradle.initialization.DefaultGradleLauncher.doBuildStages(DefaultGradleLauncher.java:149)
    at org.gradle.initialization.DefaultGradleLauncher.doBuild(DefaultGradleLauncher.java:106)
    at org.gradle.initialization.DefaultGradleLauncher.run(DefaultGradleLauncher.java:86)
    at org.gradle.launcher.exec.InProcessBuildActionExecuter$DefaultBuildController.run(InProcessBuildActionExecuter.java:80)
    at org.gradle.launcher.cli.ExecuteBuildAction.run(ExecuteBuildAction.java:33)
    at org.gradle.launcher.cli.ExecuteBuildAction.run(ExecuteBuildAction.java:24)
    at org.gradle.launcher.exec.InProcessBuildActionExecuter.execute(InProcessBuildActionExecuter.java:36)
    at org.gradle.launcher.exec.InProcessBuildActionExecuter.execute(InProcessBuildActionExecuter.java:26)
    at org.gradle.launcher.cli.RunBuildAction.run(RunBuildAction.java:51)
    at org.gradle.internal.Actions$RunnableActionAdapter.execute(Actions.java:169)
    at org.gradle.launcher.cli.CommandLineActionFactory$ParseAndBuildAction.execute(CommandLineActionFactory.java:237)
    at org.gradle.launcher.cli.CommandLineActionFactory$ParseAndBuildAction.execute(CommandLineActionFactory.java:210)
    at org.gradle.launcher.cli.JavaRuntimeValidationAction.execute(JavaRuntimeValidationAction.java:35)
    at org.gradle.launcher.cli.JavaRuntimeValidationAction.execute(JavaRuntimeValidationAction.java:24)
    at org.gradle.launcher.cli.CommandLineActionFactory$WithLogging.execute(CommandLineActionFactory.java:206)
    at org.gradle.launcher.cli.CommandLineActionFactory$WithLogging.execute(CommandLineActionFactory.java:169)
    at org.gradle.launcher.cli.ExceptionReportingAction.execute(ExceptionReportingAction.java:33)
    at org.gradle.launcher.cli.ExceptionReportingAction.execute(ExceptionReportingAction.java:22)
    at org.gradle.launcher.Main.doAction(Main.java:33)
    at org.gradle.launcher.bootstrap.EntryPoint.run(EntryPoint.java:45)
    at org.gradle.launcher.bootstrap.ProcessBootstrap.runNoExit(ProcessBootstrap.java:54)
    at org.gradle.launcher.bootstrap.ProcessBootstrap.run(ProcessBootstrap.java:35)
    at org.gradle.launcher.GradleMain.main(GradleMain.java:23)
Caused by: org.gradle.api.GradleException: There were failing tests. See the report at: file:///home/ec2-user/repositories/MyProject/robolectric-tests/build/reports/tests/index.html
    at org.gradle.api.tasks.testing.Test.handleTestFailures(Test.java:1118)
    at org.gradle.api.tasks.testing.Test.executeTests(Test.java:549)
    at org.gradle.internal.reflect.JavaMethod.invoke(JavaMethod.java:63)
    at org.gradle.api.internal.project.taskfactory.AnnotationProcessingTaskFactory$StandardTaskAction.doExecute(AnnotationProcessingTaskFactory.java:218)
    at org.gradle.api.internal.project.taskfactory.AnnotationProcessingTaskFactory$StandardTaskAction.execute(AnnotationProcessingTaskFactory.java:211)
    at org.gradle.api.internal.project.taskfactory.AnnotationProcessingTaskFactory$StandardTaskAction.execute(AnnotationProcessingTaskFactory.java:200)
    at org.gradle.api.internal.AbstractTask$TaskActionWrapper.execute(AbstractTask.java:585)
    at org.gradle.api.internal.AbstractTask$TaskActionWrapper.execute(AbstractTask.java:568)
    at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeAction(ExecuteActionsTaskExecuter.java:80)
    at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeActions(ExecuteActionsTaskExecuter.java:61)
    ... 44 more

BUILD FAILED

```