java.lang.NoSuchMethodError: org.junit.platform.launcher.Launcher.execute
Solution 1
TL;DR downgrade your dependencies in pom.xml
according to versions that originally came with IDEA found in IDEA_INSTALLATION_HOME/plugins/junit/lib
Longer version:
Let's presume you're using a version of the Intellij IDEA older than 2017.3; then you have these choices that were given as an official answer to another SO question: https://intellij-support.jetbrains.com/hc/en-us/community/posts/115000791190-Intellij-does-not-run-Junit5-tests
Pasting it here to to make it more visible:
IDE has compilation dependency on the old junit 5 launcher jar and it is not compatible with current released version. So you have a choice to update IDE so it will be compatible with the junit version you use or to downgrade the junit version (check what version was bundled in IDEA_INSTALLATION_HOME/plugins/junit/lib). 2017.1 had only experimental support for junit 5 as junit 5 was not released yet at that time. Sorry for the inconvenience.
So, go to your IDEA_INSTALLATION_HOME/plugins/junit/lib
folder and check the versions in the names of the jar
files found there.
Should be something like this:
user@comp:IDEA_INSTALLATION_HOME/plugins/junit/lib]$ ls
idea-junit.jar junit-platform-runner-1.0.0-M4.jar
junit5-rt.jar junit-platform-suite-api-1.0.0-M4.jar
junit-jupiter-api-5.0.0-M4.jar junit-rt.jar
junit-jupiter-engine-5.0.0-M4.jar junit-vintage-engine-4.12.0-M4.jar
junit-platform-commons-1.0.0-M4.jar opentest4j-1.0.0-M2.jar
junit-platform-engine-1.0.0-M4.jar resources_en.jar
junit-platform-launcher-1.0.0-M4.jar
Now use the junit-
filename's version suffix in your module's pom.xml
properties
setup:
<project>
...
<properties>
<junit.jupiter.version>5.0.0-M4</junit.jupiter.version>
<junit.platform.version>1.0.0-M4</junit.platform.version>
<junit.vintage.version>4.12.0-M4</junit.vintage.version>
...
</properties>
...
</project>
I can confirm that after changing to older versions, I could run Test classes that were using org.junit.jupiter
package. Before this I was constantly getting the NoSuchMethodError
when trying to run the Tests.
Solution 2
Upgrade junit-platform-launcher
version from 1.0.0
to 1.4.x
may still be needed in order to be able to run your junit5
tests:
<dependency>
<groupId>org.junit.platform</groupId>
<artifactId>junit-platform-launcher</artifactId>
<version>1.4.2</version>
<scope>test</scope>
</dependency>
I've experienced a very similar problem in eclipse, and found the solution here
Hope this helps !
Solution 3
I was experiencing something similar in VSCode, and thought I'd share my result.
I was using a mis-mash of testing dependencies in my pom.xml
, which I saw by doing mvn dependency:tree
. Removing Specific junit-jupiter
dependencies and simply using org.junit.jupiter:junit-jupiter
made everything work again (both the Test Execution in VSCode, and mvn test
on the command line).
Ultimately the only Jupiter dependencies I have in my pom.xml
now is:
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter</artifactId>
<version>5.6.0</version>
<scope>test</scope>
</dependency>
Source: https://github.com/junit-team/junit5/issues/1773
kokilayaa
Updated on June 15, 2022Comments
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kokilayaa almost 2 years
I'm trying to run the following example unit test case
class ExampleUnitTest { @Test fun addition_is_Correct() { assertEquals(4, (2 + 2).toLong()) } }
but I get the following exception
Exception in thread "main" java.lang.NoSuchMethodError: org.junit.platform.launcher.Launcher.execute(Lorg/junit/platform/launcher/LauncherDiscoveryRequest;)V at com.intellij.junit5.JUnit5IdeaTestRunner.startRunnerWithArgs(JUnit5IdeaTestRunner.java:61) at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:51) at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242) at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70) 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 com.intellij.rt.execution.application.AppMainV2.main(AppMainV2.java:131)
even though I have updated all the Junit dependencies build.gradle file like given below
testImplementation 'junit:junit:4.12' testImplementation 'org.jetbrains.spek:spek-api:1.1.5' testImplementation 'org.jetbrains.spek:spek-junit-platform-engine:1.1.5' testImplementation 'org.junit.platform:junit-platform-launcher:1.0.0' testImplementation 'org.junit.platform:junit-platform-runner:1.0.0' testImplementation 'org.junit.vintage:junit-vintage-engine:4.12.3' testImplementation 'org.junit.jupiter:junit-jupiter-api:5.0.0' testImplementation 'org.junit.jupiter:junit-jupiter-params:5.0.0' testImplementation 'org.junit.jupiter:junit-jupiter-engine:5.0.0'
is there any solution for this?
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Devesh Chanchlani almost 6 yearsI do not see any issue in this, could you share a bit more.
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Árpád Magosányi almost 5 yearsWell, I use eclipse, and I have encountered the problem.
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rexxar almost 4 years@ÁrpádMagosányi I believe it should be a similar process with Eclipse if you're using Maven. I'd say go to the Eclipse's equivalent of the dependencies folder and get the versions there. I don't have Eclipse so i don't know the exact procedure, but compare my, Christian Nuss's and hd84335's solution, maybe that will help you.
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Árpád Magosányi almost 4 yearsAs I remember the solution for me was the one @hd84335 has given.