[infinispan-issues] [JBoss JIRA] (ISPN-2756) Enabling/disabling RpcManager statistics via JMX doesn't work

[Dan Berindei (JIRA)]

Dan Berindei created ISPN-2756:
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             Summary: Enabling/disabling RpcManager statistics via JMX doesn't work
                 Key: ISPN-2756
                 URL: https://issues.jboss.org/browse/ISPN-2756
             Project: Infinispan
          Issue Type: Bug
          Components: JMX, reporting and management
    Affects Versions: 5.2.0.CR2
            Reporter: Dan Berindei
            Assignee: Dan Berindei
             Fix For: 5.2.0.Final


The test RpcManagerMBeanTest.testEnableJmxStats tries to write to the "StatisticsEnabled" attribute but fails. The operation doesn't throw an exception, but it does log this WARN message:

{noformat}
10:43:42,079 WARN  (testng-RpcManagerMBeanTest:) [ResourceDMBean] ISPN000043: Exception while writing value for attribute statisticsEnabled
java.lang.NullPointerException
	at org.infinispan.jmx.ResourceDMBean$InvokableSetterBasedMBeanAttributeInfo.invoke(ResourceDMBean.java:391)
	at org.infinispan.jmx.ResourceDMBean.setNamedAttribute(ResourceDMBean.java:325)
	at org.infinispan.jmx.ResourceDMBean.setAttribute(ResourceDMBean.java:212)
	at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.setAttribute(DefaultMBeanServerInterceptor.java:746)
	at com.sun.jmx.mbeanserver.JmxMBeanServer.setAttribute(JmxMBeanServer.java:729)
	at org.infinispan.jmx.RpcManagerMBeanTest.testEnableJmxStats(RpcManagerMBeanTest.java:134)
{noformat}

Because statistics are still enabled, the test then fails with an assertion error:

{noformat}
10:43:42,464 ERROR (testng-RpcManagerMBeanTest:) [UnitTestTestNGListener] Test testEnableJmxStats(org.infinispan.jmx.RpcManagerMBeanTest) failed.
java.lang.AssertionError: expected [-1] but found [1]
	at org.testng.Assert.fail(Assert.java:94)
	at org.testng.Assert.failNotEquals(Assert.java:494)
	at org.testng.Assert.assertEquals(Assert.java:123)
	at org.testng.Assert.assertEquals(Assert.java:165)
	at org.infinispan.jmx.RpcManagerMBeanTest.testEnableJmxStats(RpcManagerMBeanTest.java:138)
{noformat}


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