Infinispan : Getting Null pointer exception

[selfcare]

Hi,

Am using Jboss AS 6, GateIn 3.1 and Infinispan 5.1.CR8

My configurations are as below,

In  $JBOSS_HOME/server/all/deploy/cluster/infinispan-cache-registry.sar/cache-container-registry-jboss-beans.xml

.........

<bean id="testInfinispanServlet" class="com.tsky.selfcare.cache.InfinispanServlet">
      <property name="cacheManager" ref="cacheManager"/>
  </bean>


  <!-- JNDI Configuration -->
  <jee:jndi-lookup id="cacheManager" jndi-name="java:CacheManager/infinispanTest"/>

.........

My infinispan-config.xml in 

$JBOSS_HOME/server/all/deploy/cluster/infinispan-cache-registry.sar/infinispan-config.xml

is as below...

infinispan-config.xml (portion of which was added)

<!-- **************** infinispanTest *********************** -->
  <infinispan-config name="infinispanTest" jndi-name="java:CacheManager/infinispanTest">
      <alias>custom-testinfinispan-cache</alias>
      <infinispan xmlns="urn:infinispan:config:4.2">
        <global>
          <transport clusterName="${jboss.partition.name:DefaultPartition}-TestInfinispan" distributedSyncTimeout="17500">
            <properties>
              <property name="stack" value="${jboss.default.jgroups.stack:udp}"/>
            </properties>
          </transport>
          <globalJmxStatistics enabled="true"/>
          <shutdown hookBehavior="DONT_REGISTER"/>
        </global>
        <default>
          <locking isolationLevel="REPEATABLE_READ" lockAcquisitionTimeout="15000" useLockStriping="false" concurrencyLevel="1000"/>
          <jmxStatistics enabled="true"/>
          <lazyDeserialization enabled="true"/>
          <invocationBatching enabled="true"/>
          <clustering mode="replication">
            <!-- ISPN-835 workaround, use cluster cache loader in place of state transfer -->
            <!--stateRetrieval timeout="60000" fetchInMemoryState="true"/-->
            <async useReplQueue="false"/>
          </clustering>
          <loaders passivation="true">
            <loader class="org.infinispan.loaders.file.FileCacheStore" fetchPersistentState="true" purgeOnStartup="true">
              <properties>
                <property name="location" value="${jboss.server.data.dir}${/}infinispantest"/>
              </properties>
            </loader>
            <loader class="org.infinispan.loaders.cluster.ClusterCacheLoader"/>
          </loaders>
        </default>
        <namedCache name="numbersCache">
          <clustering mode="distribution">
            <!-- ISPN-835 workaround, use cluster cache loader in place of state transfer -->
            <!--stateRetrieval timeout="60000" fetchInMemoryState="false"/-->
            <hash numOwners="2"/>
            <async useReplQueue="false"/>
          </clustering>
          <loaders passivation="true">
            <loader class="org.infinispan.loaders.file.FileCacheStore" fetchPersistentState="false" purgeOnStartup="true">
              <properties>
                <property name="location" value="${jboss.server.data.dir}${/}infinispantest"/>
              </properties>
            </loader>
            <loader class="org.infinispan.loaders.cluster.ClusterCacheLoader">
              <properties>
                <property name="remoteCallTimeout" value="60000"/>
              </properties>
            </loader>
          </loaders>
        </namedCache>
      </infinispan>
    </infinispan-config>

But, am getting Null Pointer Exception while server startup (cache is initialized during startup through web.xml)

Full trace of the error is in the attachment.

[sannegrinovero]

The stacktrace seems to point out a NullPointerException in your code, specifically at

com.tsky.selfcare.cache.InfinispanServlet, line 36

I don't think I can help you with that, sorry.

[selfcare]

Hi Sanne,

Thanks for your reply.

I am pasting below my code and when it comes across this part of the code

Cache cache=cacheManager.getCache("numbersCache");       // This is 36th line in  my code

its throwing null pointer exception.

Code in my servlet

--------------------------------------package com.tsky.selfcare.cache; 

public class InfinispanServlet extends HttpServlet{

@Resource(name = "CacheManager/infinispanTest", mappedName = "java:CacheManager/infinispanTest")
private EmbeddedCacheManager cacheManager;

public void doGet(HttpServletRequest request,HttpServletResponse response) throws ServletException, IOException {
  //handleRequest(request, response);
}

public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
  //handleRequest(request, response);
}
public void init(ServletConfig config) throws ServletException {
    try{ 
   super.init(config);
   InfinishpanCache  subscriberCache = InfinishpanCache.getSubscriberCacheInstance();
   Cache cache=cacheManager.getCache("numbersCache");     // This is 36th line in my code

   subscriberCache.setCache(cache);
  }catch(Exception e){
   e.printStackTrace();
  }
   }
public void setCacheManager(EmbeddedCacheManager cacheManager){
                     this.cacheManager = cacheManager;
  System.out.println("cacheManager :: "+cacheManager);
}
}

Code in InfinishpanCache  Class

.....................................................

public class InfinishpanCache {

   
  private static InfinishpanCache singleInstance;

  private static Cache cache;

   public static InfinishpanCache getSubscriberCacheInstance() {
     try {
    if (singleInstance == null) {
         singleInstance = new InfinishpanCache();
    }
   }
   catch(Exception e) {
    e.printStackTrace();
   }
     return singleInstance;
  }

  public void setCache(Cache cache)
  {
   this.cache=cache;
  }
  public static Cache getInfinispaCache() {
   return cache;
  }

Let me know if you want to know furthur details..

Thanks in advance !

Regards,

Vikas

[pmuir]

The resource injection of the cache manager is failing.

How did you upgrade the server to use Infinispan 5.1?

[selfcare]

Hi Pete,

Sorry for delay in response.

BTW, Null pointer exception has been resolved after below code was added.

private EmbeddedCacheManager cacheManager=new DefaultCacheManager();

Now I am getting the cache and its sharing across the portlets also, but I am getting the below exception during server start up.

Am using Jboss AS 6.0, Infinispan 5.0.0

DEPLOYMENTS MISSING DEPENDENCIES:
  Deployment "CacheContainerFactory" is missing the following dependencies:
    Dependency "JChannelFactory" (should be in state "Installed", but is actually in state "** NOT FOUND Depends on 'JChannelFactory' **")
  Deployment "CacheContainerRegistry" is missing the following dependencies:
    Dependency "CacheContainerFactory" (should be in state "Installed", but is actually in state "Described")

DEPLOYMENTS IN ERROR:
  Deployment "JChannelFactory" is in error due to the following reason(s): ** NOT FOUND Depends on 'JChannelFactory' **

        at org.jboss.deployers.plugins.deployers.DeployersImpl.checkComplete(DeployersImpl.java:1228) [:2.2.0.GA]
        at org.jboss.deployers.plugins.main.MainDeployerImpl.checkComplete(MainDeployerImpl.java:905) [:2.2.0.GA]
        at org.jboss.system.server.profileservice.deployers.MainDeployerPlugin.checkComplete(MainDeployerPlugin.java:87) [:6.0.0.Final]
        at org.jboss.profileservice.deployment.ProfileDeployerPluginRegistry.checkAllComplete(ProfileDeployerPluginRegistry.java:107) [:0.2.2]
        at org.jboss.system.server.profileservice.bootstrap.BasicProfileServiceBootstrap.start(BasicProfileServiceBootstrap.java:135) [:6.0.0.Final]
        at org.jboss.system.server.profileservice.bootstrap.BasicProfileServiceBootstrap.start(BasicProfileServiceBootstrap.java:56) [:6.0.0.Final]
        at org.jboss.bootstrap.impl.base.server.AbstractServer.startBootstraps(AbstractServer.java:827) [jboss-bootstrap-impl-base.jar:2.1.0-alpha-5]
        at org.jboss.bootstrap.impl.base.server.AbstractServer$StartServerTask.run(AbstractServer.java:417) [jboss-bootstrap-impl-base.jar:2.1.0-alpha-5]
        at java.lang.Thread.run(Thread.java:619) [:1.6.0_21]

The infinispan-5.0.0 bundled jars are placed under $JBOSS_HOME/server/default/deploy/gatein.ear/lib path

Infinispan5.0.0 bundled jars which are placed are below.
---------------------------------------------------------------------------------
infinispan-core.jar
jboss-logging-3.0.0.GA.jar
jboss-marshalling-1.3.0.GA.jar
jboss-marshalling-river-1.3.0.GA.jar
jboss-transaction-api-1.0.1.GA.jar
jcip-annotations-1.0.jar
jgroups-2.12.1.1.Final.jar
org.osgi.core-4.3.0.jar
rhq-pluginAnnotations-3.0.1.jar

Also jboss-ha-server-ispn-1.0.0.CR5.jar  for handling NoClassDefFoundError:org.jboss.ha.ispn.DefaultCacheContainerFactory  exception.

How to resolve DEPLOYMENTS MISSING DEPENDENCIES exception ?

Regards,

Vikas