I installed apache-tomee-plume-7.1.0 from https://tomee.apache.org/
I installed eclipse-jee from https://www.eclipse.org/ using the installation tool.
In eclipse I added a new tomcat v8.5 server since eclipse told me that was the installed version.
When starting the server from within eclipse, I get an error-message like this:
'Starting tomcat v8.5 Server at localhost' has encountered a problem.
Server Tomcat v8.5 Server at localhost failed to start.
In the console it says:
SEVERE: A child container failed during start
java.util.concurrent.ExecutionException: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[]]
at java.base/java.util.concurrent.FutureTask.report(FutureTask.java:122)
at java.base/java.util.concurrent.FutureTask.get(FutureTask.java:191)
at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:941)
at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:872)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1421)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1411)
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
at java.base/java.lang.Thread.run(Thread.java:834)
Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[]]
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:167)
... 6 more
Caused by: java.lang.NoClassDefFoundError: Could not initialize class org.apache.openejb.util.proxy.LocalBeanProxyFactory$Unsafe
at org.apache.openejb.util.proxy.LocalBeanProxyFactory.createProxy(LocalBeanProxyFactory.java:137)
at org.apache.openejb.util.proxy.LocalBeanProxyFactory.createProxy(LocalBeanProxyFactory.java:147)
at org.apache.tomee.catalina.TomcatWebAppBuilder.eagerInitOfLocalBeanProxies(TomcatWebAppBuilder.java:1563)
at org.apache.tomee.catalina.TomcatWebAppBuilder.startInternal(TomcatWebAppBuilder.java:1309)
at org.apache.tomee.catalina.TomcatWebAppBuilder.configureStart(TomcatWebAppBuilder.java:1125)
at org.apache.tomee.catalina.GlobalListenerSupport.lifecycleEvent(GlobalListenerSupport.java:133)
at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:94)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5154)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
... 6 more
There are some more errors but I think the NoClassDefFoundError might be the main problem... am I right? Any help is appreciated.
I ended up using another version of tomee. Switched to version: apache-tomee-plume-8.0.0-M3 This solved my issues.