我在tomcat7 Web服务器上运行了一个java servlet。我编写了一个程序，每隔10秒从服务器加载一个页面。该页面使用PHP脚本调用，该脚本使用CURL函数触发Tomcat提供网页页面非常简单，加载时间不到1秒。
大约5分钟后，服务器崩溃。检查我的日志文件，我得到了不一致的错误原因。
我经常在网站崩溃之前收到java.util.zip.ZipException: error in opening zip file错误信息。最近我在崩溃前收到null pointer exception。这些错误导致相同的初始条件（我只是在崩溃之间重新启动Tomcat并且没有更改任何代码）
我使用Eclipse构建我的servlet。我是Tomcat的新手，我想修复它以使其稳定。任何建议都将不胜感激。
我正在使用tomcat 7，而我的java版本是：
Java(TM) SE Runtime Environment (build 1.6.0_26-b03)
Java HotSpot(TM) 64-Bit Server VM (build 20.1-b02, mixed mode)
堆栈跟踪（####用于删除的内容）：
SEVERE: Servlet.service() for servlet [##################] in context with path [/##################] threw exception
java.lang.RuntimeException: java.util.zip.ZipException: error in opening zip file
at org.apache.hadoop.conf.Configuration.loadResource(Configuration.java:1387)
at org.apache.hadoop.conf.Configuration.loadResources(Configuration.java:1251)
at org.apache.hadoop.conf.Configuration.getProps(Configuration.java:1192)
at org.apache.hadoop.conf.Configuration.get(Configuration.java:415)
at org.apache.hadoop.hbase.HBaseConfiguration.checkDefaultsVersion(HBaseConfiguration.java:63)
at org.apache.hadoop.hbase.HBaseConfiguration.addHbaseResources(HBaseConfiguration.java:89)
at org.apache.hadoop.hbase.HBaseConfiguration.create(HBaseConfiguration.java:100)
########################
###########################
#########################
at javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:224)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:169)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:928)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:987)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:539)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:298)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
Caused by: java.util.zip.ZipException: error in opening zip file
at java.util.zip.ZipFile.open(Native Method)
at java.util.zip.ZipFile.<init>(ZipFile.java:127)
at java.util.jar.JarFile.<init>(JarFile.java:135)
at java.util.jar.JarFile.<init>(JarFile.java:72)
at sun.net.www.protocol.jar.URLJarFile.<init>(URLJarFile.java:72)
at sun.net.www.protocol.jar.URLJarFile.getJarFile(URLJarFile.java:48)
at sun.net.www.protocol.jar.JarFileFactory.get(JarFileFactory.java:70)
at sun.net.www.protocol.jar.JarURLConnection.connect(JarURLConnection.java:104)
at sun.net.www.protocol.jar.JarURLConnection.getInputStream(JarURLConnection.java:132)
at com.sun.org.apache.xerces.internal.impl.XMLEntityManager.setupCurrentEntity(XMLEntityManager.java:653)
at com.sun.org.apache.xerces.internal.impl.XMLVersionDetector.determineDocVersion(XMLVersionDetector.java:186)
at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:772)
at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:737)
at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:119)
at com.sun.org.apache.xerces.internal.parsers.DOMParser.parse(DOMParser.java:235)
at com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderImpl.parse(DocumentBuilderImpl.java:284)
at javax.xml.parsers.DocumentBuilder.parse(DocumentBuilder.java:180)
at org.apache.hadoop.conf.Configuration.loadResource(Configuration.java:1300)