我正在Intellij Idea中开发Java Web App，目前正在重写一些服务器作业，以使其更具可定制性。

我遇到的问题是，当我使用Idea调试War文件时，似乎正在运行多个Scheduler
Servlet实例。这导致我得到“堆空间不足”错误。我需要在Intellij中运行，以便可以在服务器运行时调试和检查变量。

当我直接从命令行运行Tomcat时，不会发生此问题。

我在servlet的init方法中放置了一条除以零的行，以获取堆栈跟踪信息，以查看servlet的初始化位置，结果如下：

第一个例外：

java.lang.ArithmeticException: / by zero
at com.visibleequity.servlets.SchedulerContextServlet.init(SchedulerContextServlet.java:25)
at javax.servlet.GenericServlet.init(GenericServlet.java:160)
at org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:1280)
at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1193)
at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:1088)
at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:5033)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5317)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
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(Unknown Source)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)

第二个：

java.lang.ArithmeticException: / by zero
at com.visibleequity.servlets.SchedulerContextServlet.init(SchedulerContextServlet.java:25)
at javax.servlet.GenericServlet.init(GenericServlet.java:160)
at org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:1280)
at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1193)
at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:1088)
at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:5033)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5317)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
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.manageApp(HostConfig.java:1553)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:301)
at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(Unknown Source)
at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(Unknown Source)
at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:622)
at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:569)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:301)
at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(Unknown Source)
at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(Unknown Source)
at javax.management.remote.rmi.RMIConnectionImpl.doOperation(Unknown Source)
at javax.management.remote.rmi.RMIConnectionImpl.access$300(Unknown Source)
at javax.management.remote.rmi.RMIConnectionImpl$PrivilegedOperation.run(Unknown Source)
at javax.management.remote.rmi.RMIConnectionImpl.doPrivilegedOperation(Unknown Source)
at javax.management.remote.rmi.RMIConnectionImpl.invoke(Unknown Source)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at sun.rmi.server.UnicastServerRef.dispatch(Unknown Source)
at sun.rmi.transport.Transport$1.run(Unknown Source)
at sun.rmi.transport.Transport$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.Transport.serviceCall(Unknown Source)
at sun.rmi.transport.tcp.TCPTransport.handleMessages(Unknown Source)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(Unknown Source)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)

我花了很多时间在Intellij支持论坛上阅读，但未能找到似乎可行的解决方案。我认为这与从webapps和server.xml按照ServletInit调用过两次”TomcatServlet初始化在启动时被调用两次”)）的Tomcat自动部署有关。

对于我如何预防此问题的任何帮助或签字，将不胜感激。如果您需要我发布任何其他文件或信息，请在评论中让我知道。

在此先感谢您的帮助！