Error in SonarLint for IntelliJ NoClassDefFoundError

Environment:

  • Java: JetBrains s.r.o. 11.0.12
  • OS: Linux amd64
  • IDE: WebStorm 2021.2.2
  • SonarLint: 5.3.0.36775
java.lang.NoClassDefFoundError: org/sonar/plugins/java/api/CheckRegistrar
	at java.base/java.lang.ClassLoader.defineClass1(Native Method)
	at java.base/java.lang.ClassLoader.defineClass(ClassLoader.java:1017)
	at java.base/java.security.SecureClassLoader.defineClass(SecureClassLoader.java:174)
	at java.base/java.net.URLClassLoader.defineClass(URLClassLoader.java:550)
	at java.base/java.net.URLClassLoader$1.run(URLClassLoader.java:458)
	at java.base/java.net.URLClassLoader$1.run(URLClassLoader.java:452)
	at java.base/java.security.AccessController.doPrivileged(Native Method)
	at java.base/java.net.URLClassLoader.findClass(URLClassLoader.java:451)
	at org.sonar.classloader.ClassRealm.loadClassFromSelf(ClassRealm.java:125)
	at org.sonar.classloader.ParentFirstStrategy.loadClass(ParentFirstStrategy.java:37)
	at org.sonar.classloader.ClassRealm.loadClass(ClassRealm.java:87)
	at org.sonar.classloader.ClassRealm.loadClass(ClassRealm.java:76)
	at org.codehawk.plugin.java.MyJavaRulesPlugin.define(MyJavaRulesPlugin.java:17)
	at o.ss.sl.core.container.global.ExtensionInstaller.install(ExtensionInstaller.java:72)
	at o.ss.sl.core.container.global.ExtensionInstaller.install(ExtensionInstaller.java:62)
	at o.ss.sl.core.container.global.GlobalExtensionContainer.doBeforeStart(GlobalExtensionContainer.java:36)
	at o.ss.sl.core.container.ComponentContainer.startComponents(ComponentContainer.java:124)
	at o.ss.sl.core.container.storage.StorageContainer.doAfterStart(StorageContainer.java:161)

Hello, welcome to the community! And thank you for your question.

This is a known issue with SonarQube’s CodeHawk plugin. There is little we can do to fix it, I suggest that you ask your SonarQube administrator to remove the CodeHawk plugin, or contact the maintainers of CodeHawk so that they merge the fix and release a new version.