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  1. JBoss Enterprise Application Platform
  2. JBEAP-12653

System.currentTimeMillis() cannot be mocked on IBM JDK

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    • 7.1.0.ER3
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      System.currentTimeMillis() is native in IBM JDK and at the same time, IBM JDK does not support java.lang.instrument API for native methods. Therefore, System.currentTimeMillis() cannot be mocked on IBM JDK using jmockit.

      export JAVA_HOME=path/to/ibm/java8

$JAVA_HOME/bin/java -version
java version "1.8.0"
Java(TM) SE Runtime Environment (build pxa6480sr3fp12-20160919_01(SR3 FP12))
IBM J9 VM (build 2.8, JRE 1.8.0 Linux amd64-64 Compressed References 20160915_318796 (JIT enabled, AOT enabled)
J9VM - R28_Java8_SR3_20160915_0912_B318796
JIT  - tr.r14.java.green_20160818_122998
GC   - R28_Java8_SR3_20160915_0912_B318796_CMPRSS
J9CL - 20160915_318796)
JCL - 20160914_01 based on Oracle jdk8u101-b13

mvn clean test

      Expected: the tests mocking System.currentTimeMillis() should pass
      Actual: the tests mocking System.currentTimeMillis() throw the following exception or similar:

      java.lang.UnsupportedOperationException: class redefinition failed: attempted to change method modifiers
	at org.wildfly.security.audit.PeriodicRotatingFileAuditEndpointTest$1.<init>(PeriodicRotatingFileAuditEndpointTest.java:212)
	at org.wildfly.security.audit.PeriodicRotatingFileAuditEndpointTest.mockTime(PeriodicRotatingFileAuditEndpointTest.java:212)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at java.lang.reflect.Method.invoke(Method.java:508)
	at org.apache.maven.surefire.junit4.JUnit4Provider.execute(JUnit4Provider.java:367)
	at org.apache.maven.surefire.junit4.JUnit4Provider.executeWithRerun(JUnit4Provider.java:274)
	at org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:238)
	at org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:161)
	at org.apache.maven.surefire.booter.ForkedBooter.invokeProviderInSameClassLoader(ForkedBooter.java:290)
	at org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:242)
	at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:121)

      This is the case with

      • PeriodicRotatingFileAuditEndpointTest
      • SizeRotatingFileAuditEndpointTest
      • GssapiCompatibilitySuiteChild

              ppalaga Peter Palaga
              mchoma@redhat.com Martin Choma
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                Created:
                Updated:
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