HTTP Status 500 - java.io.FileNotFoundException: /opt/tomcat/webapps/xmlui/WEB-INF/lib/xmlParserAPIs-2.0.2.jar (Too many open files)

type Exception report

message java.io.FileNotFoundException: /opt/tomcat/webapps/xmlui/WEB-INF/lib/xmlParserAPIs-2.0.2.jar (Too many open files)

description The server encountered an internal error that prevented it from fulfilling this request.

exception

java.lang.IllegalStateException: java.io.FileNotFoundException: /opt/tomcat/webapps/xmlui/WEB-INF/lib/xmlParserAPIs-2.0.2.jar (Too many open files)
	org.apache.catalina.webresources.AbstractSingleArchiveResourceSet.getArchiveEntry(AbstractSingleArchiveResourceSet.java:97)
	org.apache.catalina.webresources.AbstractArchiveResourceSet.getResource(AbstractArchiveResourceSet.java:260)
	org.apache.catalina.webresources.StandardRoot.getResourceInternal(StandardRoot.java:281)
	org.apache.catalina.webresources.Cache.getResource(Cache.java:63)
	org.apache.catalina.webresources.StandardRoot.getResource(StandardRoot.java:216)
	org.apache.catalina.webresources.StandardRoot.getClassLoaderResource(StandardRoot.java:225)
	org.apache.catalina.loader.WebappClassLoaderBase.findClassInternal(WebappClassLoaderBase.java:2479)
	org.apache.catalina.loader.WebappClassLoaderBase.findClass(WebappClassLoaderBase.java:859)
	org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1302)
	org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1167)
	org.springframework.web.context.request.RequestContextListener.requestInitialized(RequestContextListener.java:58)
	org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
	org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:616)
	org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:528)
	org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1100)
	org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:687)
	org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1520)
	org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1476)
	java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
	java.lang.Thread.run(Thread.java:748)

root cause

java.io.FileNotFoundException: /opt/tomcat/webapps/xmlui/WEB-INF/lib/xmlParserAPIs-2.0.2.jar (Too many open files)
	java.util.zip.ZipFile.open(Native Method)
	java.util.zip.ZipFile.<init>(ZipFile.java:225)
	java.util.zip.ZipFile.<init>(ZipFile.java:155)
	java.util.jar.JarFile.<init>(JarFile.java:166)
	java.util.jar.JarFile.<init>(JarFile.java:103)
	org.apache.catalina.webresources.AbstractArchiveResourceSet.openJarFile(AbstractArchiveResourceSet.java:308)
	org.apache.catalina.webresources.AbstractSingleArchiveResourceSet.getArchiveEntry(AbstractSingleArchiveResourceSet.java:93)
	org.apache.catalina.webresources.AbstractArchiveResourceSet.getResource(AbstractArchiveResourceSet.java:260)
	org.apache.catalina.webresources.StandardRoot.getResourceInternal(StandardRoot.java:281)
	org.apache.catalina.webresources.Cache.getResource(Cache.java:63)
	org.apache.catalina.webresources.StandardRoot.getResource(StandardRoot.java:216)
	org.apache.catalina.webresources.StandardRoot.getClassLoaderResource(StandardRoot.java:225)
	org.apache.catalina.loader.WebappClassLoaderBase.findClassInternal(WebappClassLoaderBase.java:2479)
	org.apache.catalina.loader.WebappClassLoaderBase.findClass(WebappClassLoaderBase.java:859)
	org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1302)
	org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1167)
	org.springframework.web.context.request.RequestContextListener.requestInitialized(RequestContextListener.java:58)
	org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
	org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:616)
	org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:528)
	org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1100)
	org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:687)
	org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1520)
	org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1476)
	java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
	java.lang.Thread.run(Thread.java:748)

note The full stack trace of the root cause is available in the Apache Tomcat/8.0.38 logs.


Apache Tomcat/8.0.38