Issue with reflections

[johnwasmat]

Hello,

I have a JBoss server running with a certain JAVA_HOME. I have a pub sub JMS application running in eclipse. I do some looks using reflections in the JMS application. The JMS application doesnt throw any error while looking up with reflections but when the server is running it fails to retrieve the class name. The following is the reflection error.

java.lang.reflect.InvocationTargetException

          at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)

          at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)

          at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)

          at java.lang.reflect.Constructor.newInstance(Unknown Source)

Is this an issue with the JVM? I`m assuming tht whenever I run an application from eclipse its using a different JVM. Also if not is it tht JBoss and the application from ecipse are referring to the same jdk which is causing the problem? Thanks for reading this post. Any help is appreciated.

[ctomc]

Hi,

what is the exact jdk your are using?

what is the full stacktrace you get? i.e.

how does your code that "dies" look like?

--

tomaz

[johnwasmat]

Hello Tomaz,

I have jdk 1.7 installed. Can i have multiple instances of jdk 1.7 installed on the same machine? Following is the stacktrace

SEVERE: Exception in SetupEventTypes()null

java.lang.reflect.InvocationTargetException

          at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)

          at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)

          at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)

          at java.lang.reflect.Constructor.newInstance(Unknown Source)

          at com.test.Engine.Init(Engine.java:78)

          at com.test.Engine.<init>(Engine.java:34)

          at com.test.Engine.getInstance(Engine.java:42)

          at com.test.JMSRecvClient.<init>(JMSRecvClient.java:50)

          at com.test.JMSRecvClient.main(JMSRecvClient.java:165)

Caused by: java.lang.NoClassDefFoundError: org/antlr/runtime/tree/TreeNodeStream

          at com.test.EPAdministratorImpl.createEPLStmt(EPAdministratorImpl.java:117)

          at com.test.EPAdministratorImpl.createEPL(EPAdministratorImpl.java:67)

          at com.test<init>(EPLStatements.java:24)

          ... 9 more

Caused by: java.lang.ClassNotFoundException: org.antlr.runtime.tree.TreeNodeStream

          at java.net.URLClassLoader$1.run(Unknown Source)

          at java.net.URLClassLoader$1.run(Unknown Source)

          at java.security.AccessController.doPrivileged(Native Method)

          at java.net.URLClassLoader.findClass(Unknown Source)

          at java.lang.ClassLoader.loadClass(Unknown Source)

          at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)

          at java.lang.ClassLoader.loadClass(Unknown Source)

[ctomc]

Hi,

you problem is right there there is antlr missing from your classpath

you can add it by adding dependancy to module org.antrl via manifest.mf or jboss-deployment-structure.xml

--

tomaz