java - 可能的根本原因包括 -Xss 设置过低和非法循环继承依赖项

Question

我的应用程序很大并且使用了许多 jars 和工具。平台——windows 2008 server、Spring、hibernate、Quarts、mysql、tomcat-7.35

当我第一次部署并启动服务器时，它运行良好，但如果我重新启动，我会收到以下错误

    SEVERE: ContainerBase.addChild: start: 
    org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/TestProject]]
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:154)
    at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:901)
    at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:877)
    at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:633)
    at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1114)
    at org.apache.catalina.startup.HostConfig$DeployDirectory.run(HostConfig.java:1673)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
    at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
    at java.util.concurrent.FutureTask.run(FutureTask.java:166)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
    at java.lang.Thread.run(Thread.java:722)
    Caused by: java.lang.IllegalStateException: Unable to complete the scan for annotations for web application [/TestProject]. Possible root causes include a too low setting for -Xss and illegal cyclic inheritance dependencies
    at org.apache.catalina.startup.ContextConfig.processAnnotationsStream(ContextConfig.java:2109)
    at org.apache.catalina.startup.ContextConfig.processAnnotationsJar(ContextConfig.java:1981)
    at org.apache.catalina.startup.ContextConfig.processAnnotationsUrl(ContextConfig.java:1947)
    at org.apache.catalina.startup.ContextConfig.processAnnotations(ContextConfig.java:1932)
    at org.apache.catalina.startup.ContextConfig.webConfig(ContextConfig.java:1326)
    at org.apache.catalina.startup.ContextConfig.configureStart(ContextConfig.java:878)
    at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:369)
    at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)
    at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:90)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5179)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    ... 11 more
    Caused by: java.lang.StackOverflowError
    at java.util.HashSet.<init>(HashSet.java:103)
    at org.apache.catalina.startup.ContextConfig.populateSCIsForCacheEntry(ContextConfig.java:2252)
    at org.apache.catalina.startup.ContextConfig.populateSCIsForCacheEntry(ContextConfig.java:2269)
    at org.apache.catalina.startup.ContextConfig.populateSCIsForCacheEntry(ContextConfig.java:2269)
    at org.apache.catalina.startup.ContextConfig.populateSCIsForCacheEntry(ContextConfig.java:2269)
    at org.apache.catalina.startup.ContextConfig.populateSCIsForCacheEntry(ContextConfig.java:2269)
    at org.apache.catalina.startup.ContextConfig.populateSCIsForCacheEntry(ContextConfig.java:2269)
    at org.apache.catalina.startup.ContextConfig.populateSCIsForCacheEntry(ContextConfig.java:2269)
    at org.apache.catalina.startup.ContextConfig.populateSCIsForCacheEntry(ContextConfig.java:2269)
    at org.apache.catalina.startup.ContextConfig.populateSCIsForCacheEntry(ContextConfig.java:2269)
    at org.apache.catalina.startup.ContextConfig.populateSCIsForCacheEntry(ContextConfig.java:2269)
    at org.apache.catalina.startup.ContextConfig.populateSCIsForCacheEntry(ContextConfig.java:2269)
    at org.apache.catalina.startup.ContextConfig.populateSCIsForCacheEntry(ContextConfig.java:2269)
    at org.apache.catalina.startup.ContextConfig.populateSCIsForCacheEntry(ContextConfig.java:2269)
    at org.apache.catalina.startup.ContextConfig.populateSCIsForCacheEntry(ContextConfig.java:2269)
    at org.apache.catalina.startup.ContextConfig.populateSCIsForCacheEntry(ContextConfig.java:2269)
    at org.apache.catalina.startup.ContextConfig.populateSCIsForCacheEntry(ContextConfig.java:2269)
    at org.apache.catalina.startup.ContextConfig.populateSCIsForCacheEntry(ContextConfig.java:2269)
    at org.apache.catalina.startup.ContextConfig.populateSCIsForCacheEntry(ContextConfig.java:2269)
    at org.apache.catalina.startup.ContextConfig.populateSCIsForCacheEntry(ContextConfig.java:2269)

    Feb 16, 2013 12:16:10 PM org.apache.catalina.startup.HostConfig deployDirectory
    SEVERE: Error deploying web application directory C:\apache-tomcat-7.0.35\webapps\TestProject
    java.lang.IllegalStateException: ContainerBase.addChild: start: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[TestProject]]
    at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:904)
    at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:877)
    at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:633)
    at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1114)
    at org.apache.catalina.startup.HostConfig$DeployDirectory.run(HostConfig.java:1673)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
    at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
    at java.util.concurrent.FutureTask.run(FutureTask.java:166)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
        at java.lang.Thread.run(Thread.java:722)

Answer 1

堆栈跟踪表明，tomcat 正在扫描您的应用程序以查找基于 java 的 servlet 配置的线程上的堆栈空间不足。您可以通过三种方式解决此问题。

• 增加堆栈大小-Xss4m
• 如果你没有使用任何基于 java 的 Servlet 配置，告诉 Tomcat 不要扫描你的应用程序，在 web.xml 中添加 metadata-complete="true" 到你的 web-app
• 限制 tomcat 扫描的 jar 文件。见 http://tomcat.apache.org/tomcat-7.0-doc/config/jar-scanner.html

更新 1

您需要将 -Xss4m 传递给您的 jvm 以设置堆栈大小，-Xss10m 会将其设置为 10mb。

我在我的应用程序中也使用带有注释的 Hibernate 和 Spring，tomcat 所做的扫描是查找 Servlet 3.0 注释，因此您在使用 hibernate 和 spring 注释时仍然可以限制事物，因为 hibernate 和 spring 注释被扫描 Spring 和 hibernate 。

如果您将 tomcat 作为 Windows 服务运行，则需要通过 procrun 传递参数，因为这是启动 jvm 的可执行文件。 procrun 的文档位于 http://commons.apache.org/daemon/procrun.html . tomcat7.exe真的是procrun.exe改名了，也就是说你所有的jvm选项都写到了

下的registery

The basic Service definitions are maintained under the registry key:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\

Additional parameters are stored in the registry at:

HKEY_LOCAL_MACHINE\SOFTWARE\Apache Software Foundation\ProcRun 2.0\\Parameters

On 64-bit Windows procrun always uses 32-bit registry view for storing the configuration. This means that parameters will be stored inside:

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Apache Software Foundation\ProcRun 2.0\

更新 2

Tomcat 一直在调整扫描器在不同版本之间的工作方式。尝试通过版本 7.25、7.26 ... 等向前滚动以找到它中断的版本，查看该版本的发行说明以查看它们是否更改了扫描仪的工作方式。

您可以尝试做的另一件事是创建另一个 war 文件，该文件在您的 WEB-INF\lib 中包含所有第三方 jar，但不包含您的代码。看看你是否在启动时收到该错误，如果出现，则应向 tomcat 提交错误报告，并在 github 或其他一些免费代码托管系统上向他们提供复制问题的示例项目。我相信如果有错误他们会修复它。