Ignore intermittently failing MDB20TopicTestCase

[bstansberry]

@jmesnil @dmlloyd FYI.

Test is failing a lot recently:

http://brontes.lab.eng.brq.redhat.com/project.html?projectId=WF&buildTypeId=&tab=testDetails&testNameId=5487407427960826086&order=TEST_STATUS_DESC&branch_WF=__all_branches__&itemsCount=50

[wildfly-ci]

Linux Build 7953 is now running using a merge of 663b75f

[wildfly-ci]

Windows Build 2993 is now running using a merge of 663b75f

[wildfly-ci]

Linux Build 7953 outcome was SUCCESS using a merge of 663b75f
Summary: Tests passed: 3059, ignored: 359 Build time: 00:49:43

[wildfly-ci]

Windows Build 2993 outcome was FAILURE using a merge of 663b75f
Summary: Tests failed: 1 (1 new), passed: 3058, ignored: 359 Build time: 00:51:13

Failed tests

org.jboss.as.test.integration.management.api.ModelPersistenceTestCase.testSimpleOperation: java.lang.AssertionError: null
    at org.jboss.as.test.integration.management.api.ModelPersistenceTestCase.testSimpleOperation(ModelPersistenceTestCase.java:119)
------- Stdout: -------
00:20:13,757 ERROR [org.jboss.as.controller.management-operation] (management-handler-thread - 1) org.jboss.as.controller.persistence.ConfigurationPersistenceException: WFLYCTL0268: Failed to rename temp file C:\BuildAgent\work\a31d203e70e89f90\testsuite\integration\basic\target\jbossas\standalone\configuration\standalone.xml.tmp to C:\BuildAgent\work\a31d203e70e89f90\testsuite\integration\basic\target\jbossas\standalone\configuration\standalone.xml: org.jboss.as.controller.persistence.ConfigurationPersistenceException: WFLYCTL0268: Failed to rename temp file C:\BuildAgent\work\a31d203e70e89f90\testsuite\integration\basic\target\jbossas\standalone\configuration\standalone.xml.tmp to C:\BuildAgent\work\a31d203e70e89f90\testsuite\integration\basic\target\jbossas\standalone\configuration\standalone.xml
    at org.jboss.as.controller.persistence.FilePersistenceUtils.moveTempFileToMain(FilePersistenceUtils.java:89)
    at org.jboss.as.controller.persistence.ConfigurationFile.commitTempFile(ConfigurationFile.java:538)
    at org.jboss.as.controller.persistence.ConfigurationFilePersistenceResource.doCommit(ConfigurationFilePersistenceResource.java:63)
    at org.jboss.as.controller.persistence.AbstractFilePersistenceResource.commit(AbstractFilePersistenceResource.java:58)
    at org.jboss.as.controller.ModelControllerImpl$4.commit(ModelControllerImpl.java:775)
    at org.jboss.as.controller.AbstractOperationContext.executeDoneStage(AbstractOperationContext.java:712)
    at org.jboss.as.controller.AbstractOperationContext.processStages(AbstractOperationContext.java:663)
    at org.jboss.as.controller.AbstractOperationContext.executeOperation(AbstractOperationContext.java:362)
    at org.jboss.as.controller.OperationContextImpl.executeOperation(OperationContextImpl.java:1300)
    at org.jboss.as.controller.ModelControllerImpl.internalExecute(ModelControllerImpl.java:387)
    at org.jboss.as.controller.ModelControllerImpl.execute(ModelControllerImpl.java:217)
    at org.jboss.as.controller.remote.ModelControllerClientOperationHandler$ExecuteRequestHandler.doExecute(ModelControllerClientOperationHandler.java:207)
    at org.jboss.as.controller.remote.ModelControllerClientOperationHandler$ExecuteRequestHandler.access$300(ModelControllerClientOperationHandler.java:129)
    at org.jboss.as.controller.remote.ModelControllerClientOperationHandler$ExecuteRequestHandler$1$1.run(ModelControllerClientOperationHandler.java:151)
    at org.jboss.as.controller.remote.ModelControllerClientOperationHandler$ExecuteRequestHandler$1$1.run(ModelControllerClientOperationHandler.java:147)
    at java.security.AccessController.doPrivileged(Native Method)
    at javax.security.auth.Subject.doAs(Subject.java:422)
    at org.jboss.as.controller.AccessAuditContext.doAs(AccessAuditContext.java:92)
    at org.jboss.as.controller.remote.ModelControllerClientOperationHandler$ExecuteRequestHandler$1.execute(ModelControllerClientOperationHandler.java:147)
    at org.jboss.as.protocol.mgmt.AbstractMessageHandler$2$1.doExecute(AbstractMessageHandler.java:298)
    at org.jboss.as.protocol.mgmt.AbstractMessageHandler$AsyncTaskRunner.run(AbstractMessageHandler.java:518)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)
    at org.jboss.threads.JBossThread.run(JBossThread.java:320)
Caused by: java.nio.file.FileSystemException: C:\BuildAgent\work\a31d203e70e89f90\testsuite\integration\basic\target\jbossas\standalone\configuration\standalone.xml: The process cannot access the file because it is being used by another process.

    at sun.nio.fs.WindowsException.translateToIOException(WindowsException.java:86)
    at sun.nio.fs.WindowsException.rethrowAsIOException(WindowsException.java:97)
    at sun.nio.fs.WindowsException.rethrowAsIOException(WindowsException.java:102)
    at sun.nio.fs.WindowsFileCopy.copy(WindowsFileCopy.java:165)
    at sun.nio.fs.WindowsFileSystemProvider.copy(WindowsFileSystemProvider.java:278)
    at java.nio.file.Files.copy(Files.java:1274)
    at org.jboss.as.controller.persistence.FilePersistenceUtils.copyFile(FilePersistenceUtils.java:73)
    at org.jboss.as.controller.persistence.FilePersistenceUtils.rename(FilePersistenceUtils.java:78)
    at org.jboss.as.controller.persistence.FilePersistenceUtils.moveTempFileToMain(FilePersistenceUtils.java:85)
    ... 24 more

[jmesnil]

I'm looking at it... Use of "/" in resource names looks like a red flag...

[jmesnil]

PR with the fix: #8041