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From "lakshmi.prashant" <lakshmi.kala.venkate...@sap.com>
Subject Null Pointer exception with camel quartz simple trigger (fireNow)
Date Thu, 29 May 2014 08:14:25 GMT
Hi,

   We are using camel 2.12.3 distribution with quartz 1.8.6.
   We are repeatedly facing NullPointer issues with the quartz endpoint and
the route is failing at the beginning in the quartz endpoint.  After that
the message in the route doesn't complete at all.

We have faced this issue mainly with the run once immediately (fireNow)
simple trigger:

<camel:from uri="quartz://TestNPETimerEventDefinition11?fireNow=true"/>


Error Message that we can find in the log is as follows:

ERROR#org.apache.camel.component.quartz.QuartzEndpoint##anonymous#DefaultQuartzScheduler-592-TestNPE_IFlow##Error
processing exchange. Exchange[Message: [Body is null]]. Caused by:
[java.lang.NullPointerException - while trying to invoke the method
java.io.InputStream.read(byte[]) of an object loaded from field
javax.crypto.CipherInputStream.input of an object loaded from local variable
'<0>']|

(or) sometimes we get the below error:

ERROR#org.apache.camel.component.quartz.QuartzEndpoint##anonymous#DefaultQuartzScheduler-
##Error processing exchange. Exchange[Message: [Body is null]]. 
Caused by: [java.lang.NullPointerException - while trying to invoke the
method java.lang.Object.toString() of an object returned from
java.util.Map$Entry.getValue()]|


In QuartzEndpoint.java, we see the error being thrown as follows. 

   
http://grepcode.com/file/repo1.maven.org/maven2/org.apache.camel/camel-quartz/2.12.3/org/apache/camel/component/quartz/QuartzEndpoint.java?av=f


public void onJobExecute(final JobExecutionContext jobExecutionContext)
throws JobExecutionException {
100        boolean run = true;
101        LoadBalancer balancer = getLoadBalancer();
102        if (balancer instanceof ServiceSupport) {
103            run = ((ServiceSupport) balancer).isRunAllowed();
104        }
105
106        if (!run) {
107            // quartz scheduler could potential trigger during a route
has been shutdown
108            LOG.warn("Cannot execute Quartz Job with context: " +
jobExecutionContext + " because processor is not started: " + balancer);
109            return;
110        }
111
112        LOG.debug("Firing Quartz Job with context: {}",
jobExecutionContext);
113        Exchange exchange = createExchange(jobExecutionContext);
114        try {
115            balancer.process(exchange);
116
117            if (exchange.getException() != null) {
118                // propagate the exception back to Quartz
119                throw new JobExecutionException(exchange.getException());
120            }
121        } catch (Exception e) {
122            // log the error
123        *  LOG.error(CamelExchangeException.createExceptionMessage("Error
processing exchange", exchange, e));*124
125            // and rethrow to let quartz handle it
126            if (e instanceof JobExecutionException) {
127                throw (JobExecutionException) e;
128            }
129            throw new JobExecutionException(e);
130        }
131    }
132


Can you please point me why the issue is happening and what we can do to fix
the issue?
Any help / pointers is greatly appreciated.

Many Thanks,
Lakshmi



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