Sometimes PIT/Descartes hangs

[vmassol]

I got this issue several times. Restarting the build makes it pass usually.

Here's the instance I got today on xwiki-commons with:

mvn clean install -Pquality -Dxwiki.pitest.skip=false -e -rf xwiki-commons-core/xwiki-commons-observation/xwiki-commons-observation-local/

[INFO] --- pitest-maven:1.4.0:mutationCoverage (pitest-check) @ xwiki-commons-extension-api ---
[INFO] Found plugin : JSON report plugin
[INFO] Found plugin : Produces a JSON file reporting mutation results aggregated by method and each method classfied according to its mutation status
[INFO] Found plugin : Generates an HTML document containing classes and methods with found testing issues
[INFO] Found plugin : Default csv report plugin
[INFO] Found plugin : Default xml report plugin
[INFO] Found plugin : Default html report plugin
[INFO] Found plugin : Removes mutation in methods which are of no interest
[INFO] Found plugin : Static initializer code detector plugin
[INFO] Found plugin : Static initializer filter plugin
[INFO] Found plugin : Excluded annotations plugin
[INFO] Found plugin : Inlined finally block filter plugin
[INFO] Found plugin : Try with resources filter
[INFO] Found plugin : Implicit null check filter
[INFO] Found plugin : For each loop filter
[INFO] Found plugin : Logging calls filter
[INFO] Found plugin : Infinite for loop filter
[INFO] Found plugin : Long running iterator loop filter
[INFO] Found plugin : For loop counter filter
[INFO] Found plugin : Kotlin junk mutations filter
[INFO] Found plugin : Max mutations per class limit
[INFO] Found plugin : Equals shortcut equivalent mutant filter
[INFO] Found plugin : Trivial return vals equivalence filter
[INFO] Found plugin : Mutant export plugin
[INFO] Found shared classpath plugin : Engine for extreme mutation operators
[INFO] Found shared classpath plugin : Default mutation engine
[INFO] Found shared classpath plugin : JUnit 5 test framework support
[INFO] Found shared classpath plugin : JUnit plugin
[INFO] Found shared classpath plugin : TestNG plugin
[INFO] Adding org.pitest:pitest-junit5-plugin to SUT classpath
[INFO] Adding eu.stamp-project:descartes to SUT classpath
[INFO] Adding org.pitest:pitest to SUT classpath
[INFO] Mutating from /Users/vmassol/dev/xwiki/xwiki-commons/xwiki-commons-core/xwiki-commons-extension/xwiki-commons-extension-api/target/classes
[INFO] Defaulting target classes to match packages in build directory
3:47:01 PM PIT >> INFO : Verbose logging is disabled. If you encounter an problem please enable it before reporting an issue.
3:47:02 PM PIT >> INFO : MINION : objc[7634]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x108c834c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x108d0f
3:47:02 PM PIT >> INFO : MINION : 4e0). One of the two will be used. Which one is undefined.

3:47:02 PM PIT >> INFO : Sending 177 test classes to minion
3:47:02 PM PIT >> INFO : Sent tests to minion
3:47:02 PM PIT >> INFO : MINION : 3:47:02 PM PIT >> INFO : Checking environment

3:47:03 PM PIT >> INFO : MINION : 3:47:03 PM PIT >> INFO : Found  143 tests

3:47:03 PM PIT >> INFO : MINION : 3:47:03 PM PIT >> INFO : Dependency analysis reduced number of potential tests by 0

3:47:03 PM PIT >> INFO : MINION : 3:47:03 PM PIT >> INFO : 143 tests received

|3:47:11 PM PIT >> INFO : Calculated coverage in 9 seconds.
3:47:11 PM PIT >> INFO : Created  113 mutation test units
\stderr  : objc[7635]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x1075634c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x1075efstderr  : 4e0). One of the two will be used. Which one is undefined.
stderr  : objc[7636]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x1075104c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x10853fstderr  : objc[7638]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x10c1104c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x10c19cstderr  : 4e0). One of the two will be used. Which one is undefined.
stderr  : 4e0). One of the two will be used. Which one is undefined.
stderr  : objc[7637]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x10dc294c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x10dcb5stderr  : 4e0). One of the two will be used. Which one is undefined.
3:47:16 PM PIT >> WARNING : Minion exited abnormally due to TIMED_OUT
stderr  : objc[7639]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x10e72f4c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x10f75estderr  : 4e0). One of the two will be used. Which one is undefined.
3:47:22 PM PIT >> WARNING : Minion exited abnormally due to TIMED_OUT
stderr  : objc[7640]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x10a1b44c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x10b1e3stderr  : 4e0). One of the two will be used. Which one is undefined.
stderr  : objc[7641]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x10f07c4c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x10f108stderr  : 4e0). One of the two will be used. Which one is undefined.
3:47:28 PM PIT >> WARNING : Minion exited abnormally due to TIMED_OUT
stderr  : objc[7642]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x10bc414c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x10cc70stderr  : 4e0). One of the two will be used. Which one is undefined.
3:47:33 PM PIT >> WARNING : Minion exited abnormally due to TIMED_OUT
stderr  : objc[7643]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x1040704c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x1040fcstderr  : 4e0). One of the two will be used. Which one is undefined.
stderr  : objc[7644]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x1082ef4c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x10837bstderr  : 4e0). One of the two will be used. Which one is undefined.
stderr  : [Fatal Error] :1:1: Premature end of file.
stderr  : objc[7645]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x1075664c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x1075f2stderr  : 4e0). One of the two will be used. Which one is undefined.
3:47:38 PM PIT >> WARNING : Minion exited abnormally due to TIMED_OUT
stderr  : objc[7646]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x1002794c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x1012a8stderr  : 4e0). One of the two will be used. Which one is undefined.
stderr  : objc[7647]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x100bb74c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x102bf1stderr  : 4e0). One of the two will be used. Which one is undefined.
3:47:43 PM PIT >> WARNING : Minion exited abnormally due to TIMED_OUT
stderr  : objc[7648]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x107bc74c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x108bf6stderr  : 4e0). One of the two will be used. Which one is undefined.
stderr  : objc[7649]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x10d2864c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x10e2b5stderr  : 4e0). One of the two will be used. Which one is undefined.
3:47:48 PM PIT >> WARNING : Minion exited abnormally due to TIMED_OUT
stderr  : objc[7650]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x10c9db4c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x10ea19stderr  : 4e0). One of the two will be used. Which one is undefined.
stderr  : objc[7651]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x1083804c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x10a3bcstderr  : 4e0). One of the two will be used. Which one is undefined.
3:47:53 PM PIT >> WARNING : Minion exited abnormally due to TIMED_OUT
stderr  : objc[7652]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x109a4e4c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x109adastderr  : 4e0). One of the two will be used. Which one is undefined.
stderr  : 3:47:55 PM PIT >> WARNING : Mutation MutationDetails [id=MutationIdentifier [location=Location [clazz=org.xwiki.extension.AbstractExtension, method=compareTo, methodDesc=(Lorg/xwiki/extension/Extension;Lorg/xwiki/extension/Extension;)Ljava/lang/Integer;], stderr  : indexes=[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14], mutator=0], filename=AbstractExtension.java, block=1, lineNumber=745, description=All method body replaced by: return 0, testsInOrder=[org.xwiki.extension.AbstractExtensionTest.testCompareTo, org.xwistderr  : ki.extension.job.internal.InstallPlanJobTest.testInstallPlanWithDowngradeOnRoot, org.xwiki.extension.job.internal.InstallPlanJobTest.testInstallPlanWithUpgradeOnRoot, org.xwiki.extension.job.internal.InstallPlanJobTest.testInstallPlanWithUpgradeOnDifferentstderr  : Id, org.xwiki.extension.job.internal.InstallPlanJobTest.testInstallNameSpaceExtensionWithExistingRootExtension, org.xwiki.extension.job.internal.InstallPlanJobTest.testInstallPlanWithUpgradeFeatureWithDifferentVersion, org.xwiki.extension.job.internal.Inststderr  : allJobTest.testUpgradeFirstOnRoot, org.xwiki.extension.job.internal.UpgradePlanJobTest.testUpgradePlanOnRootWithTargetDependencyExtension, org.xwiki.extension.job.internal.InstallJobTest.testReplaceDependencyWithFeature, org.xwiki.extension.job.internal.Instderr  : stallPlanJobTest.testUpgradeExtensionOnNamespaceWithDependencyAllowedOnRootOnly, org.xwiki.extension.job.internal.UpgradePlanJobTest.testUpgradePlanWithDependencyOnNamespace, org.xwiki.extension.job.internal.UpgradePlanJobTest.testUpgradePlanWithDependencystderr  : OnRoot, org.xwiki.extension.job.internal.UpgradePlanJobTest.testUpgradePlanOnRoot, org.xwiki.extension.job.internal.InstallJobTest.testInstallOnNamespaceThenOnRootWithLowerDependency, org.xwiki.extension.job.internal.InstallJobTest.testDowngradeFirstOnRootstderr  : ], isInFinallyBlock=false, poison=NORMAL] was not viable 
3:47:55 PM PIT >> WARNING : Mutation MutationDetails [id=MutationIdentifier [location=Location [clazz=org.xwiki.extension.AbstractExtension, method=compareTo, methodDesc=(Lorg/xwiki/extension/Extensstderr  : ion;Lorg/xwiki/extension/Extension;)Ljava/lang/Integer;], indexes=[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14], mutator=1], filename=AbstractExtension.java, block=1, lineNumber=745, description=All method body replaced by: return 1, testsInOrder=[org.xwstderr  : iki.extension.AbstractExtensionTest.testCompareTo, org.xwiki.extension.job.internal.InstallPlanJobTest.testInstallPlanWithDowngradeOnRoot, org.xwiki.extension.job.internal.InstallPlanJobTest.testInstallPlanWithUpgradeOnRoot, org.xwiki.extension.job.internastderr  : l.InstallPlanJobTest.testInstallPlanWithUpgradeOnDifferentId, org.xwiki.extension.job.internal.InstallPlanJobTest.testInstallNameSpaceExtensionWithExistingRootExtension, org.xwiki.extension.job.internal.InstallPlanJobTest.testInstallPlanWithUpgradeFeatureWstderr  : ithDifferentVersion, org.xwiki.extension.job.internal.InstallJobTest.testUpgradeFirstOnRoot, org.xwiki.extension.job.internal.UpgradePlanJobTest.testUpgradePlanOnRootWithTargetDependencyExtension, org.xwiki.extension.job.internal.InstallJobTest.testReplacestderr  : DependencyWithFeature, org.xwiki.extension.job.internal.InstallPlanJobTest.testUpgradeExtensionOnNamespaceWithDependencyAllowedOnRootOnly, org.xwiki.extension.job.internal.UpgradePlanJobTest.testUpgradePlanWithDependencyOnNamespace, org.xwiki.extension.jobstderr  : .internal.UpgradePlanJobTest.testUpgradePlanWithDependencyOnRoot, org.xwiki.extension.job.internal.UpgradePlanJobTest.testUpgradePlanOnRoot, org.xwiki.extension.job.internal.InstallJobTest.testInstallOnNamespaceThenOnRootWithLowerDependency, org.xwiki.extestderr  : nsion.job.internal.InstallJobTest.testDowngradeFirstOnRoot], isInFinallyBlock=false, poison=NORMAL] was not viable 
stderr  : objc[7653]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x10c20e4c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x10c29astderr  : 4e0). One of the two will be used. Which one is undefined.
3:47:59 PM PIT >> WARNING : Minion exited abnormally due to TIMED_OUT
stderr  : objc[7654]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x105a2d4c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x105ab9stderr  : 4e0). One of the two will be used. Which one is undefined.
stderr  : objc[7655]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x1088b34c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x10893fstderr  : 4e0). One of the two will be used. Which one is undefined.
3:48:03 PM PIT >> WARNING : Minion exited abnormally due to TIMED_OUT
stderr  : objc[7656]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x107b774c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x109bbcstderr  : 4e0). One of the two will be used. Which one is undefined.
stderr  : objc[7657]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x10791d4c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x1079a9stderr  : 4e0). One of the two will be used. Which one is undefined.
stderr  : objc[7658]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x103d464c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x103dd2stderr  : 4e0). One of the two will be used. Which one is undefined.
stderr  : objc[7659]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x10b6c04c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x10c6efstderr  : 4e0). One of the two will be used. Which one is undefined.
3:48:15 PM PIT >> WARNING : Minion exited abnormally due to TIMED_OUT
stderr  : objc[7660]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x10a5144c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x10b543stderr  : 4e0). One of the two will be used. Which one is undefined.
stderr  : objc[7661]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x10d3a74c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x10f3f1stderr  : 4e0). One of the two will be used. Which one is undefined.
stderr  : objc[7662]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x10c30e4c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x10c39astderr  : 4e0). One of the two will be used. Which one is undefined.
3:48:25 PM PIT >> WARNING : Minion exited abnormally due to TIMED_OUT
stderr  : objc[7663]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x103c244c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x105c5cstderr  : 4e0). One of the two will be used. Which one is undefined.
stderr  : objc[7664]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x101eb54c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x101f41stderr  : 4e0). One of the two will be used. Which one is undefined.
3:48:31 PM PIT >> WARNING : Minion exited abnormally due to TIMED_OUT
stderr  : objc[7665]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x100cae4c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x101cddstderr  : 4e0). One of the two will be used. Which one is undefined.
stderr  : objc[7666]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x10e7a94c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x1107f1stderr  : 4e0). One of the two will be used. Which one is undefined.
3:48:36 PM PIT >> WARNING : Minion exited abnormally due to TIMED_OUT
stderr  : objc[7667]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x109c3c4c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x109cc8stderr  : 4e0). One of the two will be used. Which one is undefined.
stderr  : objc[7668]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x10f6684c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x10f6f4stderr  : 4e0). One of the two will be used. Which one is undefined.
stderr  : objc[7669]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x100b694c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x100bf5stderr  : 4e0). One of the two will be used. Which one is undefined.
stderr  : objc[7670]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x10e3754c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x1103bcstderr  : 4e0). One of the two will be used. Which one is undefined.
/stderr  : objc[7671]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x103fec4c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x104078stderr  : 4e0). One of the two will be used. Which one is undefined.
\stderr  : objc[7672]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x1065804c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x1085bcstderr  : 4e0). One of the two will be used. Which one is undefined.
\stderr  : objc[7673]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x101c584c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x101ce4stderr  : 4e0). One of the two will be used. Which one is undefined.
stderr  : objc[7674]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x10a53b4c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x10a5c7stderr  : 4e0). One of the two will be used. Which one is undefined.
stderr  : objc[7675]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x10927f4c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x10930bstderr  : 4e0). One of the two will be used. Which one is undefined.
stderr  : objc[7676]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x10e4024c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x10e48estderr  : 4e0). One of the two will be used. Which one is undefined.
stderr  : objc[7677]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x10fb8e4c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x111bbdstderr  : 4e0). One of the two will be used. Which one is undefined.
stderr  : Exception in thread "XWiki's extension job history saving thread" stderr  : java.lang.NullPointerException
stderr  : 	at java.io.File.<init>(File.java:360)
stderr  : 	at org.xwiki.extension.job.history.internal.DefaultExtensionJobHistory.save(DefaultExtensionJobHistory.java:160)stderr  : 
stderr  : 	at org.xwiki.extension.job.history.internal.DefaultExtensionJobHistory.access$300(DefaultExtensionJobHistory.java:61)
stderr  : 	at org.xwiki.extension.job.history.internal.DefaultExtensionJobHistory$SaveRunnable.run(DefaultExtensionJobHistory.java:83)
stderr  : 	at java.lang.Thread.run(Thread.java:748)
stderr  : objc[7678]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x1033ae4c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x1053f1stderr  : 4e0). One of the two will be used. Which one is undefined.
stderr  : objc[7679]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x10f21e4c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x10f2aastderr  : 4e0). One of the two will be used. Which one is undefined.
stderr  : objc[7680]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x10dafa4c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x10db86stderr  : 4e0). One of the two will be used. Which one is undefined.
stderr  : objc[7682]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x1042ff4c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x10438bstderr  : 4e0). One of the two will be used. Which one is undefined.
stderr  : objc[7683]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x10737b4c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x1083aastderr  : 4e0). One of the two will be used. Which one is undefined.
stderr  : objc[7684]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x1063c74c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x1083ffstderr  : 4e0). One of the two will be used. Which one is undefined.
stderr  : objc[7685]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x10a8f44c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x10a980stderr  : 4e0). One of the two will be used. Which one is undefined.
stderr  : Exception in thread "pool-55-thread-1" stderr  : java.lang.NullPointerException
stderr  : 	at org.xwiki.job.internal.DefaultJobExecutor$JobThreadExecutor.afterExecute(DefaultJobExecutor.java:147)stderr  : 
stderr  : 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1150)stderr  : 
stderr  : 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)stderr  : 
stderr  : 	at java.lang.Thread.run(Thread.java:748)stderr  : 
stderr  : objc[7686]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x10a8ee4c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x10a97astderr  : 4e0). One of the two will be used. Which one is undefined.
stderr  : objc[7687]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x1026934c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x10271fstderr  : 4e0). One of the two will be used. Which one is undefined.
stderr  : objc[7688]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x10dcce4c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x10dd5astderr  : 4e0). One of the two will be used. Which one is undefined.
stderr  : objc[7689]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x1070454c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x1070d1stderr  : 4e0). One of the two will be used. Which one is undefined.
stderr  : objc[7690]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x1052184c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x106247stderr  : 4e0). One of the two will be used. Which one is undefined.
stderr  : objc[7691]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x10e97b4c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x1109bcstderr  : 4e0). One of the two will be used. Which one is undefined.
stderr  : objc[7692]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x1058b64c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x105942stderr  : 4e0). One of the two will be used. Which one is undefined.
stderr  : objc[7693]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x109cea4c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x109d76stderr  : 4e0). One of the two will be used. Which one is undefined.
stderr  : objc[7694]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x1032cd4c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x103359stderr  : 4e0). One of the two will be used. Which one is undefined.
stderr  : objc[7695]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x100c9a4c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x100d26stderr  : 4e0). One of the two will be used. Which one is undefined.
stderr  : objc[7696]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x10cb004c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x10cb8cstderr  : 4e0). One of the two will be used. Which one is undefined.
stderr  : objc[7697]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x1044494c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x1044d5stderr  : 4e0). One of the two will be used. Which one is undefined.
stderr  : objc[7698]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x1016544c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x1016e0stderr  : 4e0). One of the two will be used. Which one is undefined.
stderr  : 3:49:51 PM PIT >> WARNING : Mutation MutationDetails [id=MutationIdentifier [location=Location [clazz=org.xwiki.extension.repository.internal.BooleanExtensionPropertySerializer, method=toValue, methodDesc=(Lorg/w3c/dom/Element;)Ljava/lang/Boolean;], indexestderr  : s=[1], mutator=true], filename=BooleanExtensionPropertySerializer.java, block=1, lineNumber=42, description=All method body replaced by: return true, testsInOrder=[org.xwiki.extension.repository.local.DefaultExtensionSerializerTest.testSerialize, org.xwikistderr  : .extension.repository.installed.DefaultInstalledExtensionRepositoryTest.testResolve, org.xwiki.extension.repository.installed.DefaultInstalledExtensionRepositoryTest.testResolveDependency, org.xwiki.extension.repository.local.DefaultLocalExtensionRepositorstderr  : yTest.testSearchWithQueryEQUAL, org.xwiki.extension.repository.local.DefaultLocalExtensionRepositoryTest.testSearchWithQueryWithNullValue, org.xwiki.extension.repository.local.DefaultLocalExtensionRepositoryTest.testResolveUnexistingButSmalerVersionDependestderr  : ncy, org.xwiki.extension.repository.local.DefaultLocalExtensionRepositoryTest.testResolveUnexistingDependencyId, org.xwiki.extension.repository.local.DefaultLocalExtensionRepositoryTest.testSearchWithQueryMATCH, org.xwiki.extension.repository.installed.Defstderr  : aultInstalledExtensionRepositoryTest.testSearchInstalledExtensions, org.xwiki.extension.repository.installed.DefaultInstalledExtensionRepositoryTest.testgetInstalledExtensionFeatureNamespace, org.xwiki.extension.repository.local.DefaultLocalExtensionReposistderr  : toryTest.testResolve, org.xwiki.extension.repository.local.DefaultLocalExtensionRepositoryTest.testSearch, org.xwiki.extension.repository.installed.DefaultInstalledExtensionRepositoryTest.testSearch, org.xwiki.extension.repository.local.DefaultLocalExtensistderr  : onRepositoryTest.testResolveExistingDependency, org.xwiki.extension.repository.local.DefaultLocalExtensionRepositoryTest.testResolveUnexistingButFeatureCompatibleDependency, org.xwiki.extension.repository.installed.DefaultInstalledExtensionRepositoryTest.tstderr  : estInit, org.xwiki.extension.repository.installed.DefaultInstalledExtensionRepositoryTest.testBackwardDependenciesAfterInit, org.xwiki.extension.repository.local.DefaultLocalExtensionRepositoryTest.testRemove, org.xwiki.extension.repository.installed.Defaustderr  : ltInstalledExtensionRepositoryTest.testAdvancedSearchWithNullQuery, org.xwiki.extension.repository.local.DefaultLocalExtensionRepositoryTest.testInit, org.xwiki.extension.repository.local.DefaultLocalExtensionRepositoryTest.testResolveIncompatibleDependencstderr  : yVersion, org.xwiki.extension.repository.installed.DefaultInstalledExtensionRepositoryTest.testStoreExtensionAndInstall, org.xwiki.extension.repository.installed.DefaultInstalledExtensionRepositoryTest.testGetLocalExtension, org.xwiki.extension.repository.stderr  : installed.DefaultInstalledExtensionRepositoryTest.testUninstallExtension, org.xwiki.extension.repository.installed.DefaultInstalledExtensionRepositoryTest.testAdvancedSearchInstalledWithNullQuery, org.xwiki.extension.repository.installed.DefaultInstalledExstderr  : tensionRepositoryTest.testBackwardDependenciesWithExtensionAndDepOnRoot, org.xwiki.extension.job.internal.InstallPlanJobTest.testInstallPlanWithFeatureAsCoreExtension, org.xwiki.extension.repository.installed.DefaultInstalledExtensionRepositoryTest.testBacstderr  : kwardDependenciesAfterUninstall, org.xwiki.extension.repository.installed.DefaultInstalledExtensionRepositoryTest.testInstallTwice, org.xwiki.extension.job.internal.InstallPlanJobTest.testInstallPlanWithUnsupportedType, org.xwiki.extension.job.internal.Insstderr  : tallPlanJobTest.testInstallPlanWithFeatureAsCoreExtensionFeature, org.xwiki.extension.job.internal.InstallPlanJobTest.testInstallPlanWithSimpleRemoteExtensionOnRoot, org.xwiki.extension.job.internal.InstallPlanJobTest.testInstallPlanWithLowerCoreDependencystderr  : Feature, org.xwiki.extension.job.internal.InstallPlanJobTest.testInstallWithInvalidOptionalDependency, org.xwiki.extension.job.internal.InstallPlanJobTest.testInstallWithManagedTransitiveDependency, org.xwiki.extension.job.internal.InstallPlanJobTest.testIstderr  : nstallWithOverwrittenManagedDependency, org.xwiki.extension.job.internal.InstallPlanJobTest.testInstallPlanWithCoreExtension, org.xwiki.extension.job.internal.InstallPlanJobTest.testInstallPlanWithInstalledDependencyOnRoot, org.xwiki.extension.repository.istderr  : nstalled.DefaultInstalledExtensionRepositoryTest.testBackwardDependenciesWithExtensionOnNamespaceAndDepOnNamespace, org.xwiki.extension.job.internal.InstallPlanJobTest.testInstallWithManagedDependency, org.xwiki.extension.job.internal.InstallPlanJobTest.testderr  : stInstallWithInvalidRecommendedManagedDependency, org.xwiki.extension.job.internal.InstallPlanJobTest.testReInstalledWithMissingDependency, org.xwiki.extension.job.internal.InstallPlanJobTest.testInstallRemoteWithMissingDependency, org.xwiki.extension.job.stderr  : internal.UninstallJobTest.testUninstall, org.xwiki.extension.job.internal.InstallPlanJobTest.testInstallPlanWithCoreExtensionFeature, org.xwiki.extension.job.internal.InstallPlanJobTest.testInstallPlanWithHigherCoreDependencyFeature, org.xwiki.extension.jostderr  : b.internal.InstallPlanJobTest.testInstallWithRecommendedManagedDependency, org.xwiki.extension.job.internal.UninstallJobTest.testUninstallTwice, org.xwiki.extension.job.internal.InstallPlanJobTest.testInstallNameSpaceExtensionWithDependencyAllowedOnRootOnlstderr  : y, org.xwiki.extension.job.internal.InstallPlanJobTest.testInstallPlanWithUpgradeOnDifferentIdNotAllowed, org.xwiki.extension.job.internal.InstallPlanJobTest.testInstallPlanWithRemoteDependencyOnRoot, org.xwiki.extension.job.internal.UninstallJobTest.testUstderr  : ninstallWithBackwarDepencency, org.xwiki.extension.job.internal.InstallPlanJobTest.testInstallPlanWithCoreDependencyOnRoot, org.xwiki.extension.repository.installed.DefaultInstalledExtensionRepositoryTest.testBackwardDependenciesWithExtensionAndDepOnNamespstderr  : ace, org.xwiki.extension.job.internal.InstallPlanJobTest.testInstallPlanWithDowngradeOnRoot, org.xwiki.extension.job.internal.UpgradePlanJobTest.testUpgradePlanOnNamespaceWithExtensionOnRoot, org.xwiki.extension.job.internal.InstallPlanJobTest.testInstallPstderr  : lanWithUpgradeOnRoot, org.xwiki.extension.job.internal.InstallPlanJobTest.testInstallPlanWithUpgradeOnDifferentId, org.xwiki.extension.job.internal.InstallPlanJobTest.testForbiddenInstallNameSpaceExtensionWithExistingRootExtension, org.xwiki.extension.job.stderr  : internal.InstallPlanJobTest.testForbiddenInstallNameSpaceExtensionWithIncompatibleRootDependency, org.xwiki.extension.job.internal.InstallPlanJobTest.testInstallOnNamespaceThenOnRoot, org.xwiki.extension.job.internal.InstallPlanJobTest.testInstallWithStricstderr  : tRecommendedManagedDependency, org.xwiki.extension.job.internal.InstallPlanJobTest.testInstallNameSpaceExtensionWithExistingRootExtension, org.xwiki.extension.job.internal.InstallPlanJobTest.testInstallOnNamespaceThenUnpgradeOnRoot, org.xwiki.extension.jobstderr  : .internal.InstallPlanJobTest.testInstallPlanWithUpgradeFeatureWithDifferentVersion, org.xwiki.extension.job.internal.InstallJobTest.testInstallRemoteWithMissingDependency, org.xwiki.extension.job.internal.InstallJobTest.testInstallRemoteOnNamespace, org.xwstderr  : iki.extension.job.internal.InstallJobTest.testInstallOnRoot, org.xwiki.extension.job.internal.InstallJobTest.testInstallRemoteOnNamespaces, org.xwiki.extension.job.internal.InstallJobTest.testUpgradeFirstOnRoot, org.xwiki.extension.job.internal.UninstallJostderr  : bTest.testUninstallFromAllNamespaces, org.xwiki.extension.job.internal.UninstallJobTest.testUninstallFromNamespace, org.xwiki.extension.job.internal.UninstallJobTest.testUninstallFromNamespaceWithBackwarDepencency, org.xwiki.extension.job.internal.UpgradePstderr  : lanJobTest.testUpgradePlanOnRootWithTargetDependencyExtension, org.xwiki.extension.job.internal.InstallJobTest.testReplaceDependencyWithFeature, org.xwiki.extension.job.internal.InstallPlanJobTest.testForbiddenInstallLowerVersionOfDependencyOnRoot, org.xwistderr  : ki.extension.job.internal.InstallPlanJobTest.testUpgradeExtensionOnNamespaceWithDependencyAllowedOnRootOnly, org.xwiki.extension.job.internal.InstallJobTest.testInstallOnNamespaceThenOnRoot, org.xwiki.extension.job.internal.UpgradePlanJobTest.testUpgradePlstderr  : anWithDependencyOnNamespace, org.xwiki.extension.job.internal.InstallJobTest.testInstallOnNamespaceThenUpgradeOnRoot, org.xwiki.extension.job.internal.UpgradePlanJobTest.testUpgradePlanWithDependencyOnRoot, org.xwiki.extension.job.internal.UpgradePlanJobTestderr  : st.testUpgradePlanOnRoot, org.xwiki.extension.job.internal.InstallJobTest.testInstallOnNamespaceThenOnRootWithLowerDependency, org.xwiki.extension.job.internal.InstallPlanJobTest.testForbiddenInstallExtensionOnIncompatibleNamespace, org.xwiki.extension.jobstderr  : .internal.InstallJobTest.testInstallOnNamespaceThenMoveDependencyOnRoot, org.xwiki.extension.job.internal.InstallJobTest.testDowngradeFirstOnRoot], isInFinallyBlock=false, poison=NORMAL] was not viable 
3:49:52 PM PIT >> WARNING : Minion exited abnormally due to TIMED_OUT
stderr  : objc[7699]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x104efd4c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x105f2cstderr  : 4e0). One of the two will be used. Which one is undefined.
stderr  : 3:49:52 PM PIT >> WARNING : Mutation MutationDetails [id=MutationIdentifier [location=Location [clazz=org.xwiki.extension.repository.internal.BooleanExtensionPropertySerializer, method=toValue, methodDesc=(Lorg/w3c/dom/Element;)Ljava/lang/Boolean;], indexestderr  : s=[1], mutator=false], filename=BooleanExtensionPropertySerializer.java, block=1, lineNumber=42, description=All method body replaced by: return false, testsInOrder=[org.xwiki.extension.repository.local.DefaultExtensionSerializerTest.testSerialize, org.xwistderr  : ki.extension.repository.installed.DefaultInstalledExtensionRepositoryTest.testResolve, org.xwiki.extension.repository.installed.DefaultInstalledExtensionRepositoryTest.testResolveDependency, org.xwiki.extension.repository.local.DefaultLocalExtensionRepositstderr  : oryTest.testSearchWithQueryEQUAL, org.xwiki.extension.repository.local.DefaultLocalExtensionRepositoryTest.testSearchWithQueryWithNullValue, org.xwiki.extension.repository.local.DefaultLocalExtensionRepositoryTest.testResolveUnexistingButSmalerVersionDepenstderr  : dency, org.xwiki.extension.repository.local.DefaultLocalExtensionRepositoryTest.testResolveUnexistingDependencyId, org.xwiki.extension.repository.local.DefaultLocalExtensionRepositoryTest.testSearchWithQueryMATCH, org.xwiki.extension.repository.installed.Dstderr  : objc[7700]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x107d004c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x108d2fstderr  : 4e0). One of the two will be used. Which one is undefined.
3:49:56 PM PIT >> WARNING : Minion exited abnormally due to TIMED_OUT
stderr  : objc[7701]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x1086764c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x108702stderr  : 4e0). One of the two will be used. Which one is undefined.
stderr  : objc[7702]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x10d83d4c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x10d8c9stderr  : 4e0). One of the two will be used. Which one is undefined.
stderr  : objc[7703]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x1078b74c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x107943stderr  : 4e0). One of the two will be used. Which one is undefined.
stderr  : 3:50:00 PM PIT >> WARNING : Mutation MutationDetails [id=MutationIdentifier [location=Location [clazz=org.xwiki.extension.repository.internal.IntegerExtensionPropertySerializer, method=toValue, methodDesc=(Lorg/w3c/dom/Element;)Ljava/lang/Integer;], indexestderr  : s=[1], mutator=1], filename=IntegerExtensionPropertySerializer.java, block=1, lineNumber=42, description=All method body replaced by: return 1, testsInOrder=[org.xwiki.extension.repository.local.DefaultExtensionSerializerTest.testSerialize], isInFinallyBlostderr  : ck=false, poison=NORMAL] was not viable 
stderr  : 3:50:01 PM PIT >> WARNING : Mutation MutationDetails [id=MutationIdentifier [location=Location [clazz=org.xwiki.extension.repository.internal.IntegerExtensionPropertySerializer, method=toValue, methodDesc=(Lorg/w3c/dom/Element;)Ljava/lang/Integer;], indexestderr  : s=[1], mutator=0], filename=IntegerExtensionPropertySerializer.java, block=1, lineNumber=42, description=All method body replaced by: return 0, testsInOrder=[org.xwiki.extension.repository.local.DefaultExtensionSerializerTest.testSerialize], isInFinallyBlostderr  : ck=false, poison=NORMAL] was not viable 
stderr  : objc[7704]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x106c624c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x106ceestderr  : 4e0). One of the two will be used. Which one is undefined.
stderr  : objc[7705]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x1033664c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x1033f2stderr  : 4e0). One of the two will be used. Which one is undefined.
stderr  : objc[7706]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x105a304c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x105abcstderr  : 4e0). One of the two will be used. Which one is undefined.
stderr  : objc[7707]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x10ed0b4c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x10ed97stderr  : 4e0). One of the two will be used. Which one is undefined.
stderr  : objc[7708]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x1015c94c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x103619stderr  : 4e0). One of the two will be used. Which one is undefined.
stderr  : objc[7709]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x10c24a4c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x10d279stderr  : 4e0). One of the two will be used. Which one is undefined.
stderr  : objc[7710]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x106e224c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x106eaestderr  : 4e0). One of the two will be used. Which one is undefined.
stderr  : objc[7711]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x108dc24c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x108e4estderr  : 4e0). One of the two will be used. Which one is undefined.
stderr  : objc[7712]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x10f5254c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x10f5b1stderr  : 4e0). One of the two will be used. Which one is undefined.
stderr  : objc[7713]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x107d214c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x107dadstderr  : 4e0). One of the two will be used. Which one is undefined.
stderr  : objc[7714]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x10c24e4c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x10c2dastderr  : 4e0). One of the two will be used. Which one is undefined.
stderr  : objc[7715]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x1035014c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x10358dstderr  : 4e0). One of the two will be used. Which one is undefined.
stderr  : objc[7716]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x10efe04c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x10f06cstderr  : 4e0). One of the two will be used. Which one is undefined.
stderr  : objc[7717]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x10af8f4c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x10afe6stderr  : 4e0). One of the two will be used. Which one is undefined.
stderr  : objc[7718]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x107e0b4c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x107e97stderr  : 4e0). One of the two will be used. Which one is undefined.
stderr  : objc[7719]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x10ecc64c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x10ed52stderr  : 4e0). One of the two will be used. Which one is undefined.
stderr  : objc[7720]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x10c0fe4c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x10c18astderr  : 4e0). One of the two will be used. Which one is undefined.
stderr  : objc[7721]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x10bcaf4c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x10bd3bstderr  : 4e0). One of the two will be used. Which one is undefined.
stderr  : objc[7722]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x1068b24c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x10693estderr  : 4e0). One of the two will be used. Which one is undefined.
stderr  : objc[7723]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x10d3ff4c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x10d48bstderr  : 4e0). One of the two will be used. Which one is undefined.
stderr  : objc[7724]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x10054c4c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x1005d8stderr  : 4e0). One of the two will be used. Which one is undefined.
stderr  : objc[7725]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x10d9b54c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x10f9f1stderr  : 4e0). One of the two will be used. Which one is undefined.
stderr  : objc[7726]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x1082804c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x10830cstderr  : 4e0). One of the two will be used. Which one is undefined.
stderr  : objc[7727]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x1065ab4c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x1085f1stderr  : 4e0). One of the two will be used. Which one is undefined.
stderr  : objc[7728]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/bin/java (0x1032b74c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x103343stderr  : 4e0). One of the two will be used. Which one is undefined.

Last timestamped log above was at 3:50:01 and I ctrl-C-ed the build at 4:29:00...

[vmassol]

I'm stupid, I should have taken a thread dump. Next time it happens, I will do that.

[oscarlvp]

I've seen this issue as well. It would be nice to check whether this issue is related to hcoles/pitest#65.

[vmassol]

Note that I've executed it today on observation-local and it doesn't hang but reports 0 mutation score which is very dubious...