There was an error!

java.lang.IllegalStateException: java.io.IOException: java.lang.reflect.InvocationTargetException
	at org.apache.catalina.webresources.AbstractSingleArchiveResourceSet.getArchiveEntry(AbstractSingleArchiveResourceSet.java:101)
	at org.apache.catalina.webresources.AbstractArchiveResourceSet.getResource(AbstractArchiveResourceSet.java:256)
	at org.apache.catalina.webresources.StandardRoot.getResourceInternal(StandardRoot.java:282)
	at org.apache.catalina.webresources.Cache.getResource(Cache.java:62)
	at org.apache.catalina.webresources.StandardRoot.getResource(StandardRoot.java:217)
	at org.apache.catalina.webresources.StandardRoot.getClassLoaderResource(StandardRoot.java:226)
	at org.apache.catalina.loader.WebappClassLoaderBase.findClassInternal(WebappClassLoaderBase.java:2303)
	at org.apache.catalina.loader.WebappClassLoaderBase.findClass(WebappClassLoaderBase.java:865)
	at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1334)
	at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1188)
	at org.opensolaris.opengrok.search.Results.prettyPrintHTML(Results.java:121)
	at org.apache.jsp.search_jsp._jspService(search_jsp.java:744)
	at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:71)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
	at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:477)
	at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:385)
	at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:329)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:541)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
	at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:690)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
	at org.apache.coyote.ajp.AjpProcessor.service(AjpProcessor.java:432)
	at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65)
	at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:868)
	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1590)
	at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
	at java.base/java.lang.Thread.run(Thread.java:829)
Caused by: java.io.IOException: java.lang.reflect.InvocationTargetException
	at org.apache.tomcat.util.compat.Jre9Compat.jarFileNewInstance(Jre9Compat.java:236)
	at org.apache.tomcat.util.compat.JreCompat.jarFileNewInstance(JreCompat.java:169)
	at org.apache.catalina.webresources.AbstractArchiveResourceSet.openJarFile(AbstractArchiveResourceSet.java:307)
	at org.apache.catalina.webresources.AbstractSingleArchiveResourceSet.getArchiveEntry(AbstractSingleArchiveResourceSet.java:97)
	... 39 more
Caused by: java.lang.reflect.InvocationTargetException
	at java.base/jdk.internal.reflect.GeneratedConstructorAccessor7.newInstance(Unknown Source)
	at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:490)
	at org.apache.tomcat.util.compat.Jre9Compat.jarFileNewInstance(Jre9Compat.java:233)
	... 42 more
Caused by: java.io.FileNotFoundException: /data/tomcat/webapps/android-4.1.2_r1.0/WEB-INF/lib/lucene-core-2.2.0.jar (Too many open files)
	at java.base/java.io.RandomAccessFile.open0(Native Method)
	at java.base/java.io.RandomAccessFile.open(RandomAccessFile.java:345)
	at java.base/java.io.RandomAccessFile.(RandomAccessFile.java:259)
	at java.base/java.io.RandomAccessFile.(RandomAccessFile.java:214)
	at java.base/java.util.zip.ZipFile$Source.(ZipFile.java:1305)
	at java.base/java.util.zip.ZipFile$Source.get(ZipFile.java:1271)
	at java.base/java.util.zip.ZipFile$CleanableResource.(ZipFile.java:733)
	at java.base/java.util.zip.ZipFile$CleanableResource.get(ZipFile.java:850)
	at java.base/java.util.zip.ZipFile.(ZipFile.java:248)
	at java.base/java.util.zip.ZipFile.(ZipFile.java:177)
	at java.base/java.util.jar.JarFile.(JarFile.java:350)
	... 46 more

java.io.IOException: java.lang.reflect.InvocationTargetException