Hi,

the warning
WARN web[][o.s.c.p.PluginClassLoader] API compatibility mode is no longer supported. In case of error, plugin JavaMelody [javamelody] should package its dependencies.
was visible in $SONARQUBE_HOME/logs/web.log for a long time already.

But now with the latest Sonarqube 10.2, Sonarqube fails to start with this error
2023.09.08 07:12:03 WARN web[][o.s.c.a.AnnotationConfigApplicationContext] Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'jdk.internal.loader.ClassLoaders$AppClassLoader@659e0bfd-org.sonar.server.plugins.ServerPluginManager': Initialization of bean failed; nested exception is java.lang.IllegalStateException: Fail to instantiate class [org.sonar.plugins.javamelody.SonarJavaMelodyPlugin] of plugin [javamelody] 2023.09.08 07:12:03 ERROR web[][o.s.s.p.w.PlatformServletContextListener] Web server startup failed org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'jdk.internal.loader.ClassLoaders$AppClassLoader@659e0bfd-org.sonar.server.plugins.ServerPluginManager': Initialization of bean failed; nested exception is java.lang.IllegalStateException: Fail to instantiate class [org.sonar.plugins.javamelody.SonarJavaMelodyPlugin] of plugin [javamelody] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:628) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:542) at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208) at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:955) at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:920) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:583) at org.sonar.core.platform.SpringComponentContainer.startComponents(SpringComponentContainer.java:187) at org.sonar.server.platform.platformlevel.PlatformLevel.start(PlatformLevel.java:80) at org.sonar.server.platform.platformlevel.PlatformLevel2.start(PlatformLevel2.java:101) at org.sonar.server.platform.PlatformImpl.start(PlatformImpl.java:214) at org.sonar.server.platform.PlatformImpl.startLevel2Container(PlatformImpl.java:186) at org.sonar.server.platform.PlatformImpl.init(PlatformImpl.java:80) at org.sonar.server.platform.web.PlatformServletContextListener.contextInitialized(PlatformServletContextListener.java:45) at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4494) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:4946) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1332) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1322) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75) at java.base/java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:145) at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:871) at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:795) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1332) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1322) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75) at java.base/java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:145) at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:871) at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:249) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) at org.apache.catalina.core.StandardService.startInternal(StandardService.java:428) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:917) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) at org.apache.catalina.startup.Tomcat.start(Tomcat.java:486) at org.sonar.server.app.EmbeddedTomcat.start(EmbeddedTomcat.java:71) at org.sonar.server.app.WebServer.start(WebServer.java:55) at org.sonar.process.ProcessEntryPoint.launch(ProcessEntryPoint.java:97) at org.sonar.process.ProcessEntryPoint.launch(ProcessEntryPoint.java:81) at org.sonar.server.app.WebServer.main(WebServer.java:104) Caused by: java.lang.IllegalStateException: Fail to instantiate class [org.sonar.plugins.javamelody.SonarJavaMelodyPlugin] of plugin [javamelody] at org.sonar.core.platform.PluginClassLoader.instantiatePluginClasses(PluginClassLoader.java:135) at org.sonar.core.platform.PluginClassLoader.load(PluginClassLoader.java:67) at org.sonar.core.platform.PluginClassLoader.load(PluginClassLoader.java:61) at org.sonar.server.plugins.ServerPluginManager.start(ServerPluginManager.java:66) at org.sonar.core.platform.StartableBeanPostProcessor.postProcessBeforeInitialization(StartableBeanPostProcessor.java:33) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsBeforeInitialization(AbstractAutowireCapableBeanFactory.java:440) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1796) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:620) ... 44 common frames omitted Caused by: java.lang.NoClassDefFoundError: org/sonar/api/SonarPlugin at java.base/java.lang.ClassLoader.defineClass1(Native Method) at java.base/java.lang.ClassLoader.defineClass(ClassLoader.java:1012) at java.base/java.security.SecureClassLoader.defineClass(SecureClassLoader.java:150) at java.base/java.net.URLClassLoader.defineClass(URLClassLoader.java:524) at java.base/java.net.URLClassLoader$1.run(URLClassLoader.java:427) at java.base/java.net.URLClassLoader$1.run(URLClassLoader.java:421) at java.base/java.security.AccessController.doPrivileged(AccessController.java:712) at java.base/java.net.URLClassLoader.findClass(URLClassLoader.java:420) 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.sonar.core.platform.PluginClassLoader.instantiatePluginClasses(PluginClassLoader.java:131) ... 51 common frames omitted Caused by: java.lang.ClassNotFoundException: org.sonar.api.SonarPlugin at org.sonar.classloader.ParentFirstStrategy.loadClass(ParentFirstStrategy.java:39) at org.sonar.classloader.ClassRealm.loadClass(ClassRealm.java:87) at org.sonar.classloader.ClassRealm.loadClass(ClassRealm.java:76) ... 64 common frames omitted 2023.09.08 07:12:03 INFO web[][c.z.h.HikariDataSource] HikariPool-1 - Shutdown initiated...
Would be great, if Javamelody would also work with the latest Sonarqube version.

Gilbert