I tried the running GUnits in src.test.java.com.crypto.hash.Sha2Test and the test cases get ignored because of the following error:
java.lang.OutOfMemoryError: Requested array size exceeds VM limit at java.lang.StringCoding$StringEncoder.encode(StringCoding.java:300) at java.lang.StringCoding.encode(StringCoding.java:344) at java.lang.StringCoding.encode(StringCoding.java:387) at java.lang.String.getBytes(String.java:958) at src.test.java.com.crypto.hash.Sha2Test.setUpClass(Sha2Test.java:38) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:45) at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15) at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:42) at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:27) at org.junit.runners.ParentRunner.run(ParentRunner.java:300) at org.junit.runner.JUnitCore.run(JUnitCore.java:157) at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68) at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:47) at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242) at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)

I tried running the test with a massive maximum heap size of 20GB and still got the same error. Is there a possible memory leak in the test case?

Here are the JVM arguments I used for the test case
-ea -Xms12G -Xmx20G -XX:+UseCompressedOops

@yanglbme I was running all the tests in the project along with code coverage and this is the only test which seems to be failing.