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POHow export an Eclipse project including IBM classes for Java libraries into an executable JAR
 

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  1. POHow export an Eclipse project including IBM classes for Java libraries into an executable JAR
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    <p>I'm trying to export an <code>Eclipse</code> project to a <code>JAR</code> executable file.<br> This project include a personal library with two IBM packages <code>com.ibm.mq.jar</code> and <code>com.ibm.mq.jmqi.jar</code></p> <p>There are no errors running the application from <code>Eclipse</code> run button or by command: <code>java MainClass</code> from the project bin folder.</p> <p>Unfortunately once the jar is created (File > Export > Runnable Jar) and launched <code>java -jar MainClass.jar</code> this is the result:</p> <pre><code>Exception in thread "main" java.lang.reflect.InvocationTargetException at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.eclipse.jdt.internal.jarinjarloader.JarRsrcLoader.main(JarRsrcLoader.java:58) Caused by: java.lang.NoClassDefFoundError: javax/resource/ResourceException at com.ibm.mq.MQEnvironment.&lt;clinit&gt;(MQEnvironment.java:520) at MQtestMain.&lt;init&gt;(MQtestMain.java:38) at MQtestMain.main(MQtestMain.java:18) ... 5 more Caused by: java.lang.ClassNotFoundException: javax.resource.ResourceException 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 java.lang.ClassLoader.loadClass(Unknown Source) ... 8 more </code></pre> <p>I have tried also <code>Fat Jar</code> plugin for the export but the result of <code>java -jar MainClass_fat.jar</code> is quite similar:</p> <pre><code>Exception in thread "main" java.lang.NoClassDefFoundError: javax/resource/ResourceException at com.ibm.mq.MQEnvironment.&lt;clinit&gt;(MQEnvironment.java:520) at MQtestMain.&lt;init&gt;(MQtestMain.java:38) at MQtestMain.main(MQtestMain.java:18) Caused by: java.lang.ClassNotFoundException: javax.resource.ResourceException 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) ... 3 more </code></pre> <p>Which is the correct way to export and run an <code>Eclipse</code> project to a <code>Jar</code> file including <code>IBM MQ Classes for Java</code> libraries?</p> <hr> <p><strong>Update 1:</strong> Unecessary but very useful to reach the solution.</p> <p>Suggested by Integrating Stuff:<br>Include <code>javaee.jar</code> file from the Java EE installation to import all dependencies for IBM classes jar included into the project.</p> <hr> <p><strong>Solution:</strong> Respect all the IBM classes for Java dependencies.</p> <p>Import into the custom library <strong>ALL</strong> the <code>jar</code> file from <code>C:\...\IBM\WebSphere MQ\java\lib</code><br> export as runnable Jar from <code>Eclipse</code> (Fat Jar plugin is not needed also)</p>
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    1. COAlways for a "ClassNotFoundException" find out where the missing class belongs. Eclipse can help here.
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      1. POHow export an Eclipse project including IBM classes for Java libraries into an executable JAR
      1. USThorbjørn Ravn Andersen
 

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