Enabling Support for PPC64LE

while running mvn install on PPC64LE vysper-core is failing due to SimpleEventBus,
using mvn version 3.9.5.

here are logs -

Running org.apache.vysper.event.SimpleEventBusTest
org.apache.vysper.event.SimpleEventBus ERROR Failing as asked
java.lang.RuntimeException: Failing as asked
at org.apache.vysper.event.EventListenerMock.onEvent(EventListenerMock.java:54)
at org.apache.vysper.event.SimpleEventBus.fireEvent(SimpleEventBus.java:54)
at org.apache.vysper.event.SimpleEventBus.lambda$publish$1(SimpleEventBus.java:46)
at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183)
at java.base/java.util.stream.DistinctOps$1$2.accept(DistinctOps.java:174)
at java.base/java.util.Iterator.forEachRemaining(Iterator.java:133)
at java.base/java.util.Spliterators$IteratorSpliterator.forEachRemaining(Spliterators.java:1845)
at java.base/java.util.stream.ReferencePipeline$Head.forEach(ReferencePipeline.java:762)
at java.base/java.util.stream.ReferencePipeline$7$1.accept(ReferencePipeline.java:276)
at java.base/java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:197)
at java.base/java.util.Iterator.forEachRemaining(Iterator.java:133)
at java.base/java.util.Spliterators$IteratorSpliterator.forEachRemaining(Spliterators.java:1845)
at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:509)
at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:499)
at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150)
at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173)
at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:596)
at org.apache.vysper.event.SimpleEventBus.publish(SimpleEventBus.java:46)
at org.apache.vysper.event.SimpleEventBusTest.publishOnTwoListenersGivenOneFailingListener(SimpleEventBusTest.java:118)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:569)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
at org.junit.runners.BlockJUnit4ClassRunner.runNotIgnored(BlockJUnit4ClassRunner.java:79)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:71)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:49)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
at org.apache.maven.surefire.junit4.JUnit4TestSet.execute(JUnit4TestSet.java:35)
at org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:146)
at org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:97)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:569)
at org.apache.maven.surefire.booter.ProviderFactory$ClassLoaderProxy.invoke(ProviderFactory.java:103)
at jdk.proxy1/jdk.proxy1.$Proxy0.invoke(Unknown Source)
at org.apache.maven.surefire.booter.SurefireStarter.invokeProvider(SurefireStarter.java:145)
at org.apache.maven.surefire.booter.SurefireStarter.runSuitesInProcess(SurefireStarter.java:87)
at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:69)
Tests run: 6, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.007 sec
Running org.apache.vysper.stanzasession.StanzaSessionTestCase
stream.starttls[required]
proceed
stream.features.mechanisms[]
Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.003 sec
Running org.apache.vysper.mina.codec.StanzaWriterProtocolEncoderTestCase
Tests run: 3, Failures: 0, Errors: 3, Skipped: 0, Time elapsed: 0.003 sec <<< FAILURE!
Running org.apache.vysper.mina.codec.C2SEndpointTest
Tests run: 2, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.049 sec
Running org.apache.vysper.mina.codec.S2SEndpointTest
Tests run: 2, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.003 sec

Results :

Failed tests:
warning(junit.framework.TestSuite$1)
warning(junit.framework.TestSuite$1)
warning(junit.framework.TestSuite$1)
warning(junit.framework.TestSuite$1)
warning(junit.framework.TestSuite$1)
warning(junit.framework.TestSuite$1)
warning(junit.framework.TestSuite$1)
warning(junit.framework.TestSuite$1)
warning(junit.framework.TestSuite$1)
warning(junit.framework.TestSuite$1)

observed similar behavior on X86 as well. are there any dependencies missing ? would appreciate suggestions on this. Thanks!