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copied!<p>Okay, I will walk you through the process I went through to analyse the issue:</p> <ul> <li>I took you jar and tried to run it via <code>java -jar pms.jar</code>. Indeed, that failed with the above mentioned error messages.</li> <li>I created a quick test class in your package that simply prints a message to system.out and put it in the jar file in the folder <code>net.pms</code>.</li> <li>I manually changed the <code>Main-Class</code> attribute in the Manifest to call that class (thus: <code>net.pms.Test</code>).</li> <li>I re-ran <code>java -jar pms.jar</code> and got the same error messages.</li> <li>I deleted all additional folders from the root of the jar and re-ran <code>java -jar pms.jar</code>. It yielded the same error messages.</li> <li>I deleted all the additional folders from <code>META-INF</code> and re-ran <code>java -jar pms.jar</code>. It still yielded the same error messages.</li> <li>I deleted all additional files from <code>META-INF</code> and re-ran <code>java -jar pms.jar</code>. The application worked fine.</li> <li>I started with a fresh copy of the jar, deleted only all additional files from <code>META-INF</code> and re-ran <code>java -jar pms.jar</code>. The application worked fine.</li> <li>I started with a fresh copy of the jar and one by one, I deleted the additional files from <code>META-INF</code>, re-running <code>java -jar pms.jar</code> as I went along. This gave me the following results:</li> </ul> <p>If your <code>META-INF</code> directory contains either one of the files <code>NB_IDE.DSA</code> or <code>NB_IDE.SF</code>, the main class of your application cannot be found by Java. It appears that the information in those files somehow influences the location mechanism of the classloader.</p> <p>I had a look at the files and it seems that it is some Netbeans specific information file. <a href="https://www.google.com/search?ie=UTF-8&q=nb_ide.sf%20nb_ide.dsa" rel="nofollow">Google</a> did not really give me any results on this, neither did my network of colleagues have any clues on it. At this point, I would usually ask StackOverflow for help, but seeing that the files only concern Netbeans dependency information, I assume that the files are only used in your IDE. Also, since this is information that is needed at build time, but not at runtime, I assume that it is safe to remove the files from your final release jar. </p> <p>All you have to do now is exclude the files from the final build through your <code>build.xml</code>. I'll leave this up to you, as there is plenty of documentation on Ant on the internet. :)</p> <p><em>Now, why did I go through this in so much detail?</em><br/> Well, this is the typical process that I follow if I am facing a problem like this. First, I exclude all interfering parameters to pinpoint the problem. Then, I analyze the result - potentially using the internet to clarify points that I am not familiar with - to not resolve the symptoms but the cause. Then I eliminate the cause.</p> <p>Personally, I think that this process is a great tool in every developers toolbox to quickly resolve issues like the one you were facing. I hope that you can re-use it sometime in the future and don't have to wait days and days for my lazy-ass to finally have a look at it. :)</p> <p>Good luck with your software!</p>

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