Vscode-java-test: Unable to run Junit5 testcases

[ashoknailwal]

I recently started working on a project which includes junit5 as testing framework. When I tried this extension to debug individual test cases, the extension seems to be crashing with an error:

java.lang.NoSuchMethodError: org.junit.platform.launcher.Launcher.execute(Lorg/junit/platform/launcher/TestPlan;[Lorg/junit/platform/launcher/TestExecutionListener;)V
    at org.eclipse.jdt.internal.junit5.runner.JUnit5TestReference.run(JUnit5TestReference.java:89)
    at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:41)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:542)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:764)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:464)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:210)

It's a maven project, even though tests are running fine using maven command something like mvn clean package. I tried re-installing the java extension pack, but that doesn't seems to work.

[ashoknailwal]

I tried to investigate it and found out that, this extension as of version 0.21.0 is using 5.4.0 versions for junit.jupiter.* and 1.4.0 for junit.jupiter.platform.* libs, but the project was running on 5.3.1 and 1.3.1 for the respective libs, when I upgraded them to the versions, that extension was using, it worked.
If there could be a way to get the versions for the libs from project's pom or some config file, that would have been better.

[jdneo]

Related bug: https://bugs.eclipse.org/bugs/show_bug.cgi?id=545849

[jdneo]

The upstream bug has been fixed. Need sometime to apply the change to the test runner and do some verification.

[jdneo]

Verified, the fix will be released in 0.22.3, which will be available in the next week.

[RushOT]

Is this bug related to this issue?

java.lang.BootstrapMethodError: java.lang.NoClassDefFoundError: org/junit/platform/engine/EngineDiscoveryListener
    at org.junit.platform.launcher.core.LauncherDiscoveryRequestBuilder.getLauncherDiscoveryListener(LauncherDiscoveryRequestBuilder.java:241)
    at org.junit.platform.launcher.core.LauncherDiscoveryRequestBuilder.build(LauncherDiscoveryRequestBuilder.java:235)
    at org.eclipse.jdt.internal.junit5.runner.JUnit5TestLoader.createFilteredTest(JUnit5TestLoader.java:70)
    at org.eclipse.jdt.internal.junit5.runner.JUnit5TestLoader.createTest(JUnit5TestLoader.java:64)
    at org.eclipse.jdt.internal.junit5.runner.JUnit5TestLoader.loadTests(JUnit5TestLoader.java:53)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:526)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:770)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:464)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:210)
Caused by: java.lang.NoClassDefFoundError: org/junit/platform/engine/EngineDiscoveryListener
    at java.lang.ClassLoader.defineClass1(Native Method)
    at java.lang.ClassLoader.defineClass(ClassLoader.java:757)
    at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
    at java.net.URLClassLoader.defineClass(URLClassLoader.java:468)
    at java.net.URLClassLoader.access$100(URLClassLoader.java:74)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:369)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:363)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:362)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:419)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:352)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:352)
    ... 9 more
Caused by: java.lang.ClassNotFoundException: org.junit.platform.engine.EngineDiscoveryListener
    at java.net.URLClassLoader.findClass(URLClassLoader.java:382)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:419)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:352)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:352)
    ... 21 more

[RushOT]

It is happening when I click on test spring boot application (gradle).
build.gradle :

testImplementation('org.springframework.boot:spring-boot-starter-test') {
        exclude group: 'org.junit.vintage', module: 'junit-vintage-engine'
    }

[jdneo]

@RushOT See: https://github.com/microsoft/vscode-java-test/issues/971

[RushOT]

@jdneo Thank you that worked for me