Hi,

we are upgrading tomcat server version from 9.0.13 to 9.0.31. system didn't startup after that, getting below error .

did anyone faced this issue before ?  we are in PEGA 8.2

com.pega.pegarules.internal.bootstrap.PRBootstrap. Problem during method invocation (contextInitialized) java.lang.ExceptionInInitializerError at com.pega.pegarules.session.internal.engineinterface.etier.impl.EngineStartup.initEngine(EngineStartup.java:400) at com.pega.pegarules.session.internal.engineinterface.etier.impl.EngineImpl._initEngine_privact(EngineImpl.java:172) at com.pega.pegarules.session.internal.engineinterface.etier.impl.EngineImpl.doStartup(EngineImpl.java:145) at com.pega.pegarules.web.servlet.WebAppLifeCycleListener._contextInitialized_privact(WebAppLifeCycleListener.java:216) at com.pega.pegarules.web.servlet.AbstractLifeCycleListener._contextInitialized_privact(AbstractLifeCycleListener.java:159) at com.pega.pegarules.web.servlet.AbstractLifeCycleListener.contextInitialized(AbstractLifeCycleListener.java:73) 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.pega.pegarules.internal.bootstrap.PRBootstrap.invokeMethod(PRBootstrap.java:381) at com.pega.pegarules.internal.bootstrap.PRBootstrap.invokeMethodPropagatingThrowable(PRBootstrap.java:422) at com.pega.pegarules.boot.internal.extbridge.AppServerBridgeToPega.invokeMethodPropagatingThrowable(AppServerBridgeToPega.java:224) at com.pega.pegarules.boot.internal.extbridge.AppServerBridgeToPega.invokeMethod(AppServerBridgeToPega.java:273) at com.pega.pegarules.internal.web.servlet.WebAppLifeCycleListenerBoot.contextInitialized(WebAppLifeCycleListenerBoot.java:92) at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4685) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5146) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:717) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:690) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:705) at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:978) at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1849) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75) at java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:112) at org.apache.catalina.startup.HostConfig.deployWARs(HostConfig.java:773) at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:427) at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1576) at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:309) at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:123) at org.apache.catalina.util.LifecycleBase.setStateInternal(LifecycleBase.java:423) at org.apache.catalina.util.LifecycleBase.setState(LifecycleBase.java:366) at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:936) at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:841) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1384) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1374) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75) at java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:134) at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:909) at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:262) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) at org.apache.catalina.core.StandardService.startInternal(StandardService.java:421) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:930) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) at org.apache.catalina.startup.Catalina.start(Catalina.java:633) 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.catalina.startup.Bootstrap.start(Bootstrap.java:343) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:474) Caused by: java.lang.RuntimeException: Unable to create PRModulesProvider at com.pega.pegarules.common.PREngineProvider.<clinit>(PREngineProvider.java:203) ... 56 more Caused by: java.lang.reflect.InvocationTargetException 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.pega.pegarules.common.PREngineProvider.<clinit>(PREngineProvider.java:201) ... 56 more Caused by: java.lang.ClassFormatError: Illegal field modifiers in class com/pega/platform/cluster/remoteexecution/Task: 0x1A at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:756) at com.pega.pegarules.bootstrap.loader.PRAppLoader.findClassInternal(PRAppLoader.java:815) at com.pega.pegarules.bootstrap.loader.PRAppLoader.findClass(PRAppLoader.java:361) at com.pega.pegarules.bootstrap.loader.PRAppLoader.loadClassInternal(PRAppLoader.java:685) at com.pega.pegarules.bootstrap.loader.PRAppLoader.loadClass(PRAppLoader.java:610) at com.pega.pegarules.bootstrap.loader.PRAppLoader.loadClass(PRAppLoader.java:535) at java.lang.Class.getDeclaredConstructors0(Native Method) at java.lang.Class.privateGetDeclaredConstructors(Class.java:2671) at java.lang.Class.getDeclaredConstructors(Class.java:2020) at com.google.inject.spi.InjectionPoint.forConstructorOf(InjectionPoint.java:245) at com.google.inject.internal.ConstructorBindingImpl.create(ConstructorBindingImpl.java:99) at com.google.inject.internal.InjectorImpl.createUninitializedBinding(InjectorImpl.java:658) at com.google.inject.internal.UntargettedBindingProcessor$1.visit(UntargettedBindingProcessor.java:51) at com.google.inject.internal.UntargettedBindingProcessor$1.visit(UntargettedBindingProcessor.java:35) at com.google.inject.internal.UntargettedBindingImpl.acceptTargetVisitor(UntargettedBindingImpl.java:41) at com.google.inject.internal.UntargettedBindingProcessor.visit(UntargettedBindingProcessor.java:35) at com.google.inject.internal.UntargettedBindingProcessor.visit(UntargettedBindingProcessor.java:27) at com.google.inject.internal.BindingImpl.acceptVisitor(BindingImpl.java:93) at com.google.inject.internal.AbstractProcessor.process(AbstractProcessor.java:56) at com.google.inject.internal.InjectorShell$Builder.build(InjectorShell.java:187) at com.google.inject.internal.InternalInjectorCreator.build(InternalInjectorCreator.java:104) at com.google.inject.internal.InjectorImpl.createChildInjector(InjectorImpl.java:226) at com.google.inject.internal.InjectorImpl.createChildInjector(InjectorImpl.java:233) at com.pega.platform.modules.internal.ModulesBridgeImpl.<init>(ModulesBridgeImpl.java:103) at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstance(Constructor.java:423) at java.lang.Class.newInstance(Class.java:442) at com.pega.platform.modules.PRModulesProvider.initialize(PRModulesProvider.java:36) ... 61 more