I am installing solr on tomcat7 in aws using bitmani tomcat stack.My solr server is not starting; below is the errorINFO: Starting service Catalina May 15, 2013 7:01:51 AM org.apache.catalina.core.StandardEngine startInternal INFO: Starting Servlet Engine: Apache Tomcat/7.0.39 May 15, 2013 7:01:51 AM org.apache.catalina.startup.HostConfig deployDescriptor INFO: Deploying configuration descriptor /opt/bitnami/apache-tomcat/conf/Catalina/localhost/solr.xml May 15, 2013 7:01:52 AM org.apache.catalina.startup.HostConfig deployDescriptor SEVERE: Error deploying configuration descriptor /opt/bitnami/apache-tomcat/conf/Catalina/localhost/solr.xml java.lang.NullPointerException at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:625) at org.apache.catalina.startup.HostConfig$DeployDescriptor.run(HostConfig.java:1637) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334) at java.util.concurrent.FutureTask.run(FutureTask.java:166) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:722) May 15, 2013 7:01:52 AM org.apache.catalina.startup.HostConfig deployDescriptors SEVERE: Error waiting for multi-thread deployment of context descriptors to complete java.util.concurrent.ExecutionException: java.lang.NullPointerException at java.util.concurrent.FutureTask$Sync.innerGet(FutureTask.java:252) at java.util.concurrent.FutureTask.get(FutureTask.java:111) at org.apache.catalina.startup.HostConfig.deployDescriptors(HostConfig.java:579) at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:475) at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1402) at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:318) at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119) at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:90) at org.apache.catalina.util.LifecycleBase.setStateInternal(LifecycleBase.java:402) at org.apache.catalina.util.LifecycleBase.setState(LifecycleBase.java:347) The /opt/bitnami/apache-tomcat/conf/Catalina/localhost/solr.xml looks like this.<?xml version="1.0" encoding="utf-8"?> The contents of /usr/share/solr/ also looks finebitnami@ip-10-144-66-148:/usr/share/solr$ ls -ltotal 11384drwxr-xr-x 2 tomcat tomcat 4096 Jul 17 2012 bin drwxr-xr-x 5 tomcat tomcat 4096 May 13 13:11 conf drwxr-xr-x 9 tomcat tomcat 4096 Jul 17 2012 contrib drwxr-xr-x 2 tomcat tomcat 4096 May 13 13:20 data drwxr-xr-x 2 tomcat tomcat 4096 May 13 13:21 lib -rw-r--r-- 1 tomcat tomcat 2259 Jul 17 2012 README.txt -rw-r--r-- 1 tomcat tomcat 11628199 May 14 12:58 solr.war -rw-r--r-- 1 tomcat tomcat 1676 Jul 17 2012 solr.xml Not sure what is wrong, but this is killing me :-(
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