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Posted to dev@camel.apache.org by "Caspar MacRae (JIRA)" <ji...@apache.org> on 2010/11/17 13:03:24 UTC
[jira] Created: (CAMEL-3341) ProxyHelper and JMS component - need
to start producer or fails with NPE
ProxyHelper and JMS component - need to start producer or fails with NPE
------------------------------------------------------------------------
Key: CAMEL-3341
URL: https://issues.apache.org/activemq/browse/CAMEL-3341
Project: Apache Camel
Issue Type: Bug
Components: camel-core, camel-jms
Affects Versions: 2.5.0
Environment: linux (debian) 2.6, maven 2.2.1, pax-exam 1.2.2 (using latest felix and equinox)
Reporter: Caspar MacRae
Attachments: ProxyHelper.diff
I've a very simple unit test (based on http://camel.apache.org/using-camelproxy.html) that works fine when using endpoint uri "direct:start" but fails with the following exception when using "activemq:somequeue"
java.lang.NullPointerException
at org.apache.camel.component.jms.JmsProducer.processInOut(JmsProducer.java:140)
at org.apache.camel.component.jms.JmsProducer.process(JmsProducer.java:90)
at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:91)
at org.apache.camel.impl.DefaultAsyncProducer.process(DefaultAsyncProducer.java:37)
at org.apache.camel.component.bean.CamelInvocationHandler.invoke(CamelInvocationHandler.java:65)
at $Proxy7.sayWordTo(Unknown Source)
at net.earcam.cdosgi.remoteserviceadmin.CamelProxyTest.simpleArgTest(CamelProxyTest.java:93)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:76)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:49)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)
Looks like the problem is simply that the producer isn't started so never creates a UuidGenerator (needed for the JMS Reply-To)
org.apache.camel.component.bean.ProxyHelper - lines 45 - 51, needs to start producer (for JmsProducer)
/**
* Creates a Proxy which sends PojoExchange to the endpoint.
*/
@SuppressWarnings("unchecked")
public static <T> T createProxy(Endpoint endpoint, ClassLoader cl, Class[] interfaces, MethodInfoCache methodCache) throws Exception {
return (T) createProxyObject(endpoint, endpoint.createProducer(), cl, interfaces, methodCache);
}
As a workaround, simply create the producer, start it and use the overloaded method createProxy that takes a producer parameter.
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[jira] Commented: (CAMEL-3341) ProxyHelper and JMS component - need
to start producer or fails with NPE
Posted by "Claus Ibsen (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/activemq/browse/CAMEL-3341?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=63384#action_63384 ]
Claus Ibsen commented on CAMEL-3341:
------------------------------------
Thanks for reporting and well spotted.
Yes the producer needs to be started beforehand.
The patch looks good.
However we can use ServiceHelper.startService to have it log the event that this service/producer is being started.
> ProxyHelper and JMS component - need to start producer or fails with NPE
> ------------------------------------------------------------------------
>
> Key: CAMEL-3341
> URL: https://issues.apache.org/activemq/browse/CAMEL-3341
> Project: Apache Camel
> Issue Type: Bug
> Components: camel-core, camel-jms
> Affects Versions: 2.5.0
> Environment: linux (debian) 2.6, maven 2.2.1, pax-exam 1.2.2 (using latest felix and equinox)
> Reporter: Caspar MacRae
> Attachments: ProxyHelper.diff
>
>
> I've a very simple unit test (based on http://camel.apache.org/using-camelproxy.html) that works fine when using endpoint uri "direct:start" but fails with the following exception when using "activemq:somequeue"
> java.lang.NullPointerException
> at org.apache.camel.component.jms.JmsProducer.processInOut(JmsProducer.java:140)
> at org.apache.camel.component.jms.JmsProducer.process(JmsProducer.java:90)
> at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:91)
> at org.apache.camel.impl.DefaultAsyncProducer.process(DefaultAsyncProducer.java:37)
> at org.apache.camel.component.bean.CamelInvocationHandler.invoke(CamelInvocationHandler.java:65)
> at $Proxy7.sayWordTo(Unknown Source)
> at net.earcam.cdosgi.remoteserviceadmin.CamelProxyTest.simpleArgTest(CamelProxyTest.java:93)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597)
> at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
> at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
> at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
> at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
> at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:76)
> at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
> at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
> at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
> at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
> at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
> at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
> at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
> at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:49)
> at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
> at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
> at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
> at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
> at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)
> Looks like the problem is simply that the producer isn't started so never creates a UuidGenerator (needed for the JMS Reply-To)
> org.apache.camel.component.bean.ProxyHelper - lines 45 - 51, needs to start producer (for JmsProducer)
> /**
> * Creates a Proxy which sends PojoExchange to the endpoint.
> */
> @SuppressWarnings("unchecked")
> public static <T> T createProxy(Endpoint endpoint, ClassLoader cl, Class[] interfaces, MethodInfoCache methodCache) throws Exception {
> return (T) createProxyObject(endpoint, endpoint.createProducer(), cl, interfaces, methodCache);
> }
> As a workaround, simply create the producer, start it and use the overloaded method createProxy that takes a producer parameter.
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[jira] Assigned: (CAMEL-3341) ProxyHelper and JMS component - need
to start producer or fails with NPE
Posted by "Claus Ibsen (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/activemq/browse/CAMEL-3341?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Claus Ibsen reassigned CAMEL-3341:
----------------------------------
Assignee: Claus Ibsen
> ProxyHelper and JMS component - need to start producer or fails with NPE
> ------------------------------------------------------------------------
>
> Key: CAMEL-3341
> URL: https://issues.apache.org/activemq/browse/CAMEL-3341
> Project: Apache Camel
> Issue Type: Bug
> Components: camel-core, camel-jms
> Affects Versions: 2.5.0
> Environment: linux (debian) 2.6, maven 2.2.1, pax-exam 1.2.2 (using latest felix and equinox)
> Reporter: Caspar MacRae
> Assignee: Claus Ibsen
> Attachments: ProxyHelper.diff
>
>
> I've a very simple unit test (based on http://camel.apache.org/using-camelproxy.html) that works fine when using endpoint uri "direct:start" but fails with the following exception when using "activemq:somequeue"
> java.lang.NullPointerException
> at org.apache.camel.component.jms.JmsProducer.processInOut(JmsProducer.java:140)
> at org.apache.camel.component.jms.JmsProducer.process(JmsProducer.java:90)
> at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:91)
> at org.apache.camel.impl.DefaultAsyncProducer.process(DefaultAsyncProducer.java:37)
> at org.apache.camel.component.bean.CamelInvocationHandler.invoke(CamelInvocationHandler.java:65)
> at $Proxy7.sayWordTo(Unknown Source)
> at net.earcam.cdosgi.remoteserviceadmin.CamelProxyTest.simpleArgTest(CamelProxyTest.java:93)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597)
> at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
> at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
> at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
> at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
> at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:76)
> at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
> at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
> at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
> at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
> at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
> at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
> at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
> at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:49)
> at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
> at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
> at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
> at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
> at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)
> Looks like the problem is simply that the producer isn't started so never creates a UuidGenerator (needed for the JMS Reply-To)
> org.apache.camel.component.bean.ProxyHelper - lines 45 - 51, needs to start producer (for JmsProducer)
> /**
> * Creates a Proxy which sends PojoExchange to the endpoint.
> */
> @SuppressWarnings("unchecked")
> public static <T> T createProxy(Endpoint endpoint, ClassLoader cl, Class[] interfaces, MethodInfoCache methodCache) throws Exception {
> return (T) createProxyObject(endpoint, endpoint.createProducer(), cl, interfaces, methodCache);
> }
> As a workaround, simply create the producer, start it and use the overloaded method createProxy that takes a producer parameter.
--
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You can reply to this email to add a comment to the issue online.
[jira] Commented: (CAMEL-3341) ProxyHelper and JMS component - need
to start producer or fails with NPE
Posted by "Caspar MacRae (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/activemq/browse/CAMEL-3341?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=63398#action_63398 ]
Caspar MacRae commented on CAMEL-3341:
--------------------------------------
Thanks Claus.
> ProxyHelper and JMS component - need to start producer or fails with NPE
> ------------------------------------------------------------------------
>
> Key: CAMEL-3341
> URL: https://issues.apache.org/activemq/browse/CAMEL-3341
> Project: Apache Camel
> Issue Type: Bug
> Components: camel-core, camel-jms
> Affects Versions: 2.5.0
> Environment: linux (debian) 2.6, maven 2.2.1, pax-exam 1.2.2 (using latest felix and equinox)
> Reporter: Caspar MacRae
> Assignee: Claus Ibsen
> Fix For: 2.6.0
>
> Attachments: ProxyHelper.diff
>
>
> I've a very simple unit test (based on http://camel.apache.org/using-camelproxy.html) that works fine when using endpoint uri "direct:start" but fails with the following exception when using "activemq:somequeue"
> java.lang.NullPointerException
> at org.apache.camel.component.jms.JmsProducer.processInOut(JmsProducer.java:140)
> at org.apache.camel.component.jms.JmsProducer.process(JmsProducer.java:90)
> at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:91)
> at org.apache.camel.impl.DefaultAsyncProducer.process(DefaultAsyncProducer.java:37)
> at org.apache.camel.component.bean.CamelInvocationHandler.invoke(CamelInvocationHandler.java:65)
> at $Proxy7.sayWordTo(Unknown Source)
> at net.earcam.cdosgi.remoteserviceadmin.CamelProxyTest.simpleArgTest(CamelProxyTest.java:93)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597)
> at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
> at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
> at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
> at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
> at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:76)
> at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
> at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
> at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
> at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
> at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
> at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
> at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
> at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:49)
> at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
> at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
> at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
> at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
> at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)
> Looks like the problem is simply that the producer isn't started so never creates a UuidGenerator (needed for the JMS Reply-To)
> org.apache.camel.component.bean.ProxyHelper - lines 45 - 51, needs to start producer (for JmsProducer)
> /**
> * Creates a Proxy which sends PojoExchange to the endpoint.
> */
> @SuppressWarnings("unchecked")
> public static <T> T createProxy(Endpoint endpoint, ClassLoader cl, Class[] interfaces, MethodInfoCache methodCache) throws Exception {
> return (T) createProxyObject(endpoint, endpoint.createProducer(), cl, interfaces, methodCache);
> }
> As a workaround, simply create the producer, start it and use the overloaded method createProxy that takes a producer parameter.
--
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You can reply to this email to add a comment to the issue online.
[jira] Updated: (CAMEL-3341) ProxyHelper and JMS component - need
to start producer or fails with NPE
Posted by "Caspar MacRae (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/activemq/browse/CAMEL-3341?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Caspar MacRae updated CAMEL-3341:
---------------------------------
Attachment: ProxyHelper.diff
Can't see any side effects of applying this.
> ProxyHelper and JMS component - need to start producer or fails with NPE
> ------------------------------------------------------------------------
>
> Key: CAMEL-3341
> URL: https://issues.apache.org/activemq/browse/CAMEL-3341
> Project: Apache Camel
> Issue Type: Bug
> Components: camel-core, camel-jms
> Affects Versions: 2.5.0
> Environment: linux (debian) 2.6, maven 2.2.1, pax-exam 1.2.2 (using latest felix and equinox)
> Reporter: Caspar MacRae
> Attachments: ProxyHelper.diff
>
>
> I've a very simple unit test (based on http://camel.apache.org/using-camelproxy.html) that works fine when using endpoint uri "direct:start" but fails with the following exception when using "activemq:somequeue"
> java.lang.NullPointerException
> at org.apache.camel.component.jms.JmsProducer.processInOut(JmsProducer.java:140)
> at org.apache.camel.component.jms.JmsProducer.process(JmsProducer.java:90)
> at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:91)
> at org.apache.camel.impl.DefaultAsyncProducer.process(DefaultAsyncProducer.java:37)
> at org.apache.camel.component.bean.CamelInvocationHandler.invoke(CamelInvocationHandler.java:65)
> at $Proxy7.sayWordTo(Unknown Source)
> at net.earcam.cdosgi.remoteserviceadmin.CamelProxyTest.simpleArgTest(CamelProxyTest.java:93)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597)
> at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
> at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
> at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
> at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
> at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:76)
> at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
> at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
> at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
> at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
> at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
> at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
> at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
> at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:49)
> at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
> at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
> at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
> at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
> at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)
> Looks like the problem is simply that the producer isn't started so never creates a UuidGenerator (needed for the JMS Reply-To)
> org.apache.camel.component.bean.ProxyHelper - lines 45 - 51, needs to start producer (for JmsProducer)
> /**
> * Creates a Proxy which sends PojoExchange to the endpoint.
> */
> @SuppressWarnings("unchecked")
> public static <T> T createProxy(Endpoint endpoint, ClassLoader cl, Class[] interfaces, MethodInfoCache methodCache) throws Exception {
> return (T) createProxyObject(endpoint, endpoint.createProducer(), cl, interfaces, methodCache);
> }
> As a workaround, simply create the producer, start it and use the overloaded method createProxy that takes a producer parameter.
--
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You can reply to this email to add a comment to the issue online.
[jira] Resolved: (CAMEL-3341) ProxyHelper and JMS component - need
to start producer or fails with NPE
Posted by "Claus Ibsen (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/activemq/browse/CAMEL-3341?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Claus Ibsen resolved CAMEL-3341.
--------------------------------
Resolution: Fixed
Fix Version/s: 2.6.0
trunk: 1036350.
Thanks for reporting.
> ProxyHelper and JMS component - need to start producer or fails with NPE
> ------------------------------------------------------------------------
>
> Key: CAMEL-3341
> URL: https://issues.apache.org/activemq/browse/CAMEL-3341
> Project: Apache Camel
> Issue Type: Bug
> Components: camel-core, camel-jms
> Affects Versions: 2.5.0
> Environment: linux (debian) 2.6, maven 2.2.1, pax-exam 1.2.2 (using latest felix and equinox)
> Reporter: Caspar MacRae
> Assignee: Claus Ibsen
> Fix For: 2.6.0
>
> Attachments: ProxyHelper.diff
>
>
> I've a very simple unit test (based on http://camel.apache.org/using-camelproxy.html) that works fine when using endpoint uri "direct:start" but fails with the following exception when using "activemq:somequeue"
> java.lang.NullPointerException
> at org.apache.camel.component.jms.JmsProducer.processInOut(JmsProducer.java:140)
> at org.apache.camel.component.jms.JmsProducer.process(JmsProducer.java:90)
> at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:91)
> at org.apache.camel.impl.DefaultAsyncProducer.process(DefaultAsyncProducer.java:37)
> at org.apache.camel.component.bean.CamelInvocationHandler.invoke(CamelInvocationHandler.java:65)
> at $Proxy7.sayWordTo(Unknown Source)
> at net.earcam.cdosgi.remoteserviceadmin.CamelProxyTest.simpleArgTest(CamelProxyTest.java:93)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597)
> at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
> at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
> at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
> at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
> at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:76)
> at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
> at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
> at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
> at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
> at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
> at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
> at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
> at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:49)
> at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
> at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
> at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
> at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
> at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)
> Looks like the problem is simply that the producer isn't started so never creates a UuidGenerator (needed for the JMS Reply-To)
> org.apache.camel.component.bean.ProxyHelper - lines 45 - 51, needs to start producer (for JmsProducer)
> /**
> * Creates a Proxy which sends PojoExchange to the endpoint.
> */
> @SuppressWarnings("unchecked")
> public static <T> T createProxy(Endpoint endpoint, ClassLoader cl, Class[] interfaces, MethodInfoCache methodCache) throws Exception {
> return (T) createProxyObject(endpoint, endpoint.createProducer(), cl, interfaces, methodCache);
> }
> As a workaround, simply create the producer, start it and use the overloaded method createProxy that takes a producer parameter.
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