HDDS-2666. Suppress loader constraint violation message in TestOzoneFileSystemWithMocks

[smengcl]

What changes were proposed in this pull request?

Suppress loader constraint violation error message in TestOzoneFileSystemWithMocks:

ERROR StatusLogger Could not reconfigure JMX
 java.lang.LinkageError: loader constraint violation: loader (instance of org/powermock/core/classloader/MockClassLoader) previously initiated loading for a different type with name "javax/management/MBeanServer"
	at java.lang.ClassLoader.defineClass1(Native Method)
	at java.lang.ClassLoader.defineClass(ClassLoader.java:756)
	at org.powermock.core.classloader.MockClassLoader.loadUnmockedClass(MockClassLoader.java:250)
	at org.powermock.core.classloader.MockClassLoader.loadModifiedClass(MockClassLoader.java:194)
	at org.powermock.core.classloader.DeferSupportingClassLoader.loadClass(DeferSupportingClassLoader.java:71)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:351)
	at org.apache.logging.log4j.core.jmx.Server.unregisterAllMatching(Server.java:335)
	at org.apache.logging.log4j.core.jmx.Server.unregisterLoggerContext(Server.java:259)
	at org.apache.logging.log4j.core.jmx.Server.reregisterMBeansAfterReconfigure(Server.java:164)
	at org.apache.logging.log4j.core.jmx.Server.reregisterMBeansAfterReconfigure(Server.java:140)
	at org.apache.logging.log4j.core.LoggerContext.setConfiguration(LoggerContext.java:558)
	at org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:619)
	at org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:636)
	at org.apache.logging.log4j.core.LoggerContext.start(LoggerContext.java:231)
...

What is the link to the Apache JIRA

https://issues.apache.org/jira/browse/HDDS-2666

How was this patch tested?

Run TestOzoneFileSystemWithMocks. Should no longer print java.lang.LinkageError: loader constraint violation.

[anuengineer]

Thank you for the contribution. Appreciate it. I have committed this to the master branch.

[smengcl]

@anuengineer Thanks for committing this!