java.lang.NoClassDefFoundError: io/netty/util/concurrent/DefaultPromise

[many086]

the illegal access.
at org.apache.catalina.loader.WebappClassLoaderBase.checkStateForResourceLoading(WebappClassLoaderBase.java:1352)
at org.apache.catalina.loader.WebappClassLoaderBase.checkStateForClassLoading(WebappClassLoaderBase.java:1340)
at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1205)
at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1166)
at io.netty.util.concurrent.DefaultPromise.notifyListeners(DefaultPromise.java:590)
at io.netty.util.concurrent.DefaultPromise.setSuccess(DefaultPromise.java:398)
at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:151)
at java.lang.Thread.run(Thread.java:745)

Exception in thread "NettyClientWorkerThread_3" java.lang.NoClassDefFoundError: io/netty/util/concurrent/DefaultPromise$2
at io.netty.util.concurrent.DefaultPromise.notifyListeners(DefaultPromise.java:590)
at io.netty.util.concurrent.DefaultPromise.setSuccess(DefaultPromise.java:398)
at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:151)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.ClassNotFoundException: Illegal access: this web application instance has been stopped already. Could not load [io.netty.util.concurrent.DefaultPromise$2]. The following stack trace is thrown for debugging purposes as well as to attempt to terminate the thread which caused the illegal access.
at org.apache.catalina.loader.WebappClassLoaderBase.checkStateForClassLoading(WebappClassLoaderBase.java:1342)
at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1205)
at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1166)
... 4 more
Caused by: java.lang.IllegalStateException: Illegal access: this web application instance has been stopped already. Could not load [io.netty.util.concurrent.DefaultPromise$2]. The following stack trace is thrown for debugging purposes as well as
at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:151)
at java.lang.Thread.run(Thread.java:745)
Exception in thread "NettyClientWorkerThread_4" java.lang.NoClassDefFoundError: io/netty/util/concurrent/DefaultPromise$2
at io.netty.util.concurrent.DefaultPromise.notifyListeners(DefaultPromise.java:590)
at io.netty.util.concurrent.DefaultPromise.setSuccess(DefaultPromise.java:398)
at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:151)
at java.lang.Thread.run(Thread.java:745)
Exception in thread "NettyClientWorkerThread_1" Exception in thread "NettyClientWorkerThread_2" java.lang.NoClassDefFoundError: io/netty/util/concurrent/DefaultPromise$2
at io.netty.util.concurrent.DefaultPromise.notifyListeners(DefaultPromise.java:590)
at io.netty.util.concurrent.DefaultPromise.setSuccess(DefaultPromise.java:398)
at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:151)
at java.lang.Thread.run(Thread.java:745)
java.lang.NoClassDefFoundError: io/netty/util/concurrent/DefaultPromise$2
at io.netty.util.concurrent.DefaultPromise.notifyListeners(DefaultPromise.java:590)
at io.netty.util.concurrent.DefaultPromise.setSuccess(DefaultPromise.java:398)
at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:151)
at java.lang.Thread.run(Thread.java:745)
Exception in thread "NettyClientSelector_1" java.lang.NoClassDefFoundError: io/netty/util/concurrent/DefaultPromise$2
at io.netty.util.concurrent.DefaultPromise.notifyListeners(DefaultPromise.java:590)
at io.netty.util.concurrent.DefaultPromise.setSuccess(DefaultPromise.java:398)
at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:151)
at java.lang.Thread.run(Thread.java:745)
Exception in thread "NettyClientSelector_1" java.lang.NoClassDefFoundError: io/netty/util/concurrent/DefaultPromise$2
at io.netty.util.concurrent.DefaultPromise.notifyListeners(DefaultPromise.java:590)
at io

[many086]

my application start error

[jamesdbloom]

Can you provide some more detail about what you are doing and when you get this issue. The MockServer war currently loads correctly inside Tomcat so I need to understand what you are doing differently or where the issue is.

[jamesdbloom]

There are integration test in the build which test deploying both the MockServer war and MockServer Proxy was to tomcat. I have also just manually tested this on a fresh install of Tomcat 8 and it worked correct without any class loading exceptions. So I'll need more information about you specific setup to understand what is happening in your case.

[jamesdbloom]

Closing as no longer considered an issue, if more background / logs, etc can be provided please re-open.

[wangenxian]

I've had this problem too, but I haven't solved it yet

[phpisfuture]

I've had this problem too, but I haven't solved it yet

me too