I'm trying JUnit 5 now and I have two problems with it:
1) When in debug mode I have a problem with JVM crashes after beign idle for some time, i.e. when I go step by step without making stops longer then 3-5 seconds then everything's OK, but if I make a stop to make some evaluations or just because I needed to do smth else during debug, thus spending more then 10 - 15 seconds then JVM crashes when I try to make next step.
2) JUnit 5 truncates stacktraces leaving only one meaningless string (with the line of test file and not an actual line from where an exception was thrown). Here's an example of such output:
Running ru.ahml.ficb.generators.GeneratorTest
Tests run: 1, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 3.418 sec <<< FAILURE! - in ru.ahml.ficb.generators.GeneratorTest
test Time elapsed: 3.359 sec <<< ERROR!
java.lang.NullPointerException
at ru.ahml.ficb.generators.GeneratorTest.test(GeneratorTest.java:44)
Results :
Tests in error:
GeneratorTest.test:44 » NullPointer
Tests run: 1, Failures: 0, Errors: 1, Skipped: 0
Absolutely no idea where this NPE occurred! And here's what JUnit 4 shows:
Running ru.ahml.ficb.generators.GeneratorTest
Tests run: 1, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 3.541 sec <<< FAILURE!
test(ru.ahml.ficb.generators.GeneratorTest) Time elapsed: 3.4 sec <<< ERROR!
java.lang.NullPointerException
at ru.ahml.ficb.excel.generators.ordersgpb.Generator.fillTable(Generator.java:268)
at ru.ahml.ficb.excel.generators.ordersgpb.Generator.fillSheet(Generator.java:122)
at ru.ahml.ficb.excel.generators.ordersgpb.Generator.generate(Generator.java:64)
at ru.ahml.ficb.generators.GeneratorTest.test(GeneratorTest.java:44)
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:47)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:271)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:70)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229)
at org.junit.runners.ParentRunner.run(ParentRunner.java:309)
at org.apache.maven.surefire.junit4.JUnit4Provider.execute(JUnit4Provider.java:252)
at org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:141)
at org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:112)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.apache.maven.surefire.util.ReflectionUtils.invokeMethodWithArray(ReflectionUtils.java:189)
at org.apache.maven.surefire.booter.ProviderFactory$ProviderProxy.invoke(ProviderFactory.java:165)
at org.apache.maven.surefire.booter.ProviderFactory.invokeProvider(ProviderFactory.java:85)
at org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:115)
at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:75)
Results :
Tests in error:
test(ru.ahml.ficb.generators.GeneratorTest)
Tests run: 1, Failures: 0, Errors: 1, Skipped: 0
Everything's clear!
How to make JUnit 5 show same stacktraces as JUnit 4 and how to prevent JVM crashes in debug mode when using JUnit 5?