tomcat启动报错

Question

30-Mar-2024 11:28:29.463 淇℃伅 [NettyClientWorkerThread_3] org.apache.catalina.loader.WebappClassLoaderBase.checkStateForResourceLoading Illegal access: this web application instance has been stopped already. Could not load [com.aliyun.openservices.shade.io.netty.util.concurrent.FastThreadLocalRunnable]. The following stack trace is thrown for debugging purposes as well as to attempt to terminate the thread which caused the illegal access.
java.lang.IllegalStateException: Illegal access: this web application instance has been stopped already. Could not load [com.aliyun.openservices.shade.io.netty.util.concurrent.FastThreadLocalRunnable]. 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.checkStateForResourceLoading(WebappClassLoaderBase.java:1364)
at org.apache.catalina.loader.WebappClassLoaderBase.checkStateForClassLoading(WebappClassLoaderBase.java:1352)
at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1211)
at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1172)
at com.aliyun.openservices.shade.io.netty.util.concurrent.DefaultThreadFactory.newThread(DefaultThreadFactory.java:106)
at com.aliyun.openservices.shade.io.netty.util.internal.ThreadExecutorMap$3.newThread(ThreadExecutorMap.java:92)
at com.aliyun.openservices.shade.io.netty.util.concurrent.GlobalEventExecutor.startThread(GlobalEventExecutor.java:214)
at com.aliyun.openservices.shade.io.netty.util.concurrent.GlobalEventExecutor.execute(GlobalEventExecutor.java:208)
at com.aliyun.openservices.shade.io.netty.util.concurrent.DefaultPromise.safeExecute(DefaultPromise.java:841)
at com.aliyun.openservices.shade.io.netty.util.concurrent.DefaultPromise.notifyListeners(DefaultPromise.java:498)
at com.aliyun.openservices.shade.io.netty.util.concurrent.DefaultPromise.setValue0(DefaultPromise.java:615)
at com.aliyun.openservices.shade.io.netty.util.concurrent.DefaultPromise.setSuccess0(DefaultPromise.java:604)
at com.aliyun.openservices.shade.io.netty.util.concurrent.DefaultPromise.setSuccess(DefaultPromise.java:96)
at com.aliyun.openservices.shade.io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:1051)
at com.aliyun.openservices.shade.io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
at java.lang.Thread.run(Thread.java:748)

30-Mar-2024 11:28:29.566 淇℃伅 [NettyClientSelector_1] org.apache.catalina.loader.WebappClassLoaderBase.checkStateForResourceLoading Illegal access: this web application instance has been stopped already. Could not load [com.aliyun.openservices.shade.io.netty.buffer.PoolArena$1]. The following stack trace is thrown for debugging purposes as well as to attempt to terminate the thread which caused the illegal access.
java.lang.IllegalStateException: Illegal access: this web application instance has been stopped already. Could not load [com.aliyun.openservices.shade.io.netty.buffer.PoolArena$1]. The following stack trace is thrown for debugging purposes as well as to attempt to terminate the thread which caused the illegal access.
at org.apache.catalina.loader.WebappClassLoaderBase.checkStateForResourceLoading(WebappClassLoaderBase.java:1364)
at org.apache.catalina.loader.WebappClassLoaderBase.checkStateForClassLoading(WebappClassLoaderBase.java:1352)
at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1211)
at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1172)
at com.aliyun.openservices.shade.io.netty.buffer.PoolArena.freeChunk(PoolArena.java:298)
at com.aliyun.openservices.shade.io.netty.buffer.PoolThreadCache$MemoryRegionCache.freeEntry(PoolThreadCache.java:465)
at com.aliyun.openservices.shade.io.netty.buffer.PoolThreadCache$MemoryRegionCache.free(PoolThreadCache.java:431)
at com.aliyun.openservices.shade.io.netty.buffer.PoolThreadCache$MemoryRegionCache.free(PoolThreadCache.java:423)
at com.aliyun.openservices.shade.io.netty.buffer.PoolThreadCache.free(PoolThreadCache.java:277)
at com.aliyun.openservices.shade.io.netty.buffer.PoolThreadCache.free(PoolThreadCache.java:268)
at com.aliyun.openservices.shade.io.netty.buffer.PoolThreadCache.free(PoolThreadCache.java:239)
at com.aliyun.openservices.shade.io.netty.buffer.PooledByteBufAllocator$PoolThreadLocalCache.onRemoval(PooledByteBufAllocator.java:491)
at com.aliyun.openservices.shade.io.netty.buffer.PooledByteBufAllocator$PoolThreadLocalCache.onRemoval(PooledByteBufAllocator.java:458)
at com.aliyun.openservices.shade.io.netty.util.concurrent.FastThreadLocal.remove(FastThreadLocal.java:256)
at com.aliyun.openservices.shade.io.netty.util.concurrent.FastThreadLocal.removeAll(FastThreadLocal.java:67)
at com.aliyun.openservices.shade.io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:1042)
at com.aliyun.openservices.shade.io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
at java.lang.Thread.run(Thread.java:748)

Exception in thread "NettyClientSelector_1" java.lang.NoClassDefFoundError: com/aliyun/openservices/shade/io/netty/buffer/PoolArena$1
at com.aliyun.openservices.shade.io.netty.buffer.PoolArena.freeChunk(PoolArena.java:298)
at com.aliyun.openservices.shade.io.netty.buffer.PoolThreadCache$MemoryRegionCache.freeEntry(PoolThreadCache.java:465)
at com.aliyun.openservices.shade.io.netty.buffer.PoolThreadCache$MemoryRegionCache.free(PoolThreadCache.java:431)
at com.aliyun.openservices.shade.io.netty.buffer.PoolThreadCache$MemoryRegionCache.free(PoolThreadCache.java:423)
at com.aliyun.openservices.shade.io.netty.buffer.PoolThreadCache.free(PoolThreadCache.java:277)
at com.aliyun.openservices.shade.io.netty.buffer.PoolThreadCache.free(PoolThreadCache.java:268)
at com.aliyun.openservices.shade.io.netty.buffer.PoolThreadCache.free(PoolThreadCache.java:239)
at com.aliyun.openservices.shade.io.netty.buffer.PooledByteBufAllocator$PoolThreadLocalCache.onRemoval(PooledByteBufAllocator.java:491)
at com.aliyun.openservices.shade.io.netty.buffer.PooledByteBufAllocator$PoolThreadLocalCache.onRemoval(PooledByteBufAllocator.java:458)
at com.aliyun.openservices.shade.io.netty.util.concurrent.FastThreadLocal.remove(FastThreadLocal.java:256)
at com.aliyun.openservices.shade.io.netty.util.concurrent.FastThreadLocal.removeAll(FastThreadLocal.java:67)
at com.aliyun.openservices.shade.io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:1042)
at com.aliyun.openservices.shade.io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.ClassNotFoundException: Illegal access: this web application instance has been stopped already. Could not load [com.aliyun.openservices.shade.io.netty.buffer.PoolArena$1]. 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:1354)
at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1211)
at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1172)

Answer 1

上午好☀️☀️☀️️
本答案参考ChatGPT-3.5

这个报错信息表明在启动Tomcat时发生了错误。错误提示中提到了Illegal access（非法访问）以及web application instance has been stopped already（Web应用程序实例已经被停止）。根据报错信息，问题出现在加载com.aliyun.openservices.shade.io.netty.util.concurrent.FastThreadLocalRunnable和com.aliyun.openservices.shade.io.netty.buffer.PoolArena$1类时遇到了问题。

解决这个问题的步骤如下：

1. 确认Tomcat是否已经停止： 确保先前的Tomcat进程已经停止，确保没有重复启动Tomcat的问题。

2. 查找冲突的库： 检查项目的依赖项中是否存在冲突的库。可能会有冲突的Jar包导致了Illegal access错误。可以使用maven或gradle等构建工程的工具来解决依赖冲突。

3. 清除Tomcat的缓存： 停止Tomcat后，删除Tomcat的work目录下的所有缓存文件（通常位于Tomcat安装目录下的work目录）。然后重新启动Tomcat，看是否能够解决问题。

4. 检查Java虚拟机的版本： 确保Java的版本与Tomcat所需的Java版本匹配。如果Java版本不兼容，可能会导致类加载错误。可以在Tomcat的启动脚本或配置文件中设置JAVA_HOME变量来指定正确的Java版本。

5. 检查相关的类是否在类路径中： 检查相关的类是否在类路径中可用。可以使用命令jar -tf your.jar | grep classname来检查类是否在jar包中。如果类不存在或无法访问，可能需要修复或重新配置相关的依赖项。

6. 更新相关依赖库的版本： 如果存在特定于依赖库的Bug，可以尝试更新相关依赖库的版本来修复问题。可以查看依赖库的官方文档或社区来获取更多信息。

如果上述方法都无法解决问题，可以考虑重新部署或重新安装Tomcat。