title: Exception in thread "main" java.lang.InternalError
body: <p>I'm trying to run a program called Orphelia ( <a href="http://orphelia.gobics.de/index.jsp" rel="nofollow">http://orphelia.gobics.de/index.jsp</a> ) in a Ubuntu environment, but always returns me the same java error. </p>
  
  <pre><code>Exception in thread "main" java.lang.InternalError
  at java.util.zip.Inflater.init(Native Method)
  at java.util.zip.Inflater.&lt;init&gt;(Inflater.java:100)
  at java.util.zip.ZipFile.getInflater(ZipFile.java:284)
  at java.util.zip.ZipFile.getInputStream(ZipFile.java:229)
  at java.util.zip.ZipFile.getInputStream(ZipFile.java:197)
  at java.util.jar.JarFile.getBytes(JarFile.java:383)
  at java.util.jar.JarFile.hasClassPathAttribute(JarFile.java:486)
  at java.util.jar.JavaUtilJarAccessImpl.jarFileHasClassPathAttribute(JavaUtilJarAccessImpl.java:33)
  at sun.misc.URLClassPath$JarLoader.getClassPath(URLClassPath.java:915)
  at sun.misc.URLClassPath.getLoader(URLClassPath.java:317)
  at sun.misc.URLClassPath.getResource(URLClassPath.java:184)
  at java.net.URLClassLoader$1.run(URLClassLoader.java:209)
  at java.security.AccessController.doPrivileged(Native Method)
  at java.net.URLClassLoader.findClass(URLClassLoader.java:205)
  at java.lang.ClassLoader.loadClass(ClassLoader.java:321)
  at java.lang.ClassLoader.loadClass(ClassLoader.java:314)
  at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:294)
  at java.lang.ClassLoader.loadClass(ClassLoader.java:266)Could not find the main class: orphelia. Program will exit.
  </code></pre>
  
  <p>I'm not very familiar with Java, but I've been searching in similar posts and it seems to be related with a Path error. </p>
  
  <p>Could someone tell me the basics ideas to understand this problem and how to fix it?  </p>
  
  <p>Any feedback will be very helpful. Thank you. </p>