smengcl opened a new pull request #303: HDDS-2666. Suppress loader constraint violation message in TestOzoneFileSystemWithMocks URL: https://github.com/apache/hadoop-ozone/pull/303 ## 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`.
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