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https://issues.apache.org/jira/browse/UIMA-4803?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15327010#comment-15327010
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Peter Klügl commented on UIMA-4803:
-----------------------------------
The classpath looks ok. You probably need to restore the situation of the
installed plugins while debugging, meaning: running the other eclipse not with
the workspace ruta-ep-ide-ui plugin, but with the installed one. This can be
configured with the launch configuration that is used the start the other
eclipse.
I tried to get my hands on a MacOS machien but failed so far.
I like to prepare the 2.4.1 bugfix release soon which means that a possible
solution will not be part of the 2.4.1 release. Is this ok for you?
The bugfix release will contain a maven-archetype which eases the creation of
completely configured maven project for ruta.
> Ruta update to 2.4 breaks project
> ---------------------------------
>
> Key: UIMA-4803
> URL: https://issues.apache.org/jira/browse/UIMA-4803
> Project: UIMA
> Issue Type: Bug
> Components: ruta
> Affects Versions: 2.4.0ruta
> Environment: Eclipse Luna, OSX
> Reporter: Matthias Grabmair
> Assignee: Peter Klügl
> Priority: Blocker
>
> Updating to Ruta 2.4 causes my project to no longer compile. The main script
> quits with the exception below. Occurs in both Eclipse Luna and Mars with
> UIMA 2.8.1. I did "UIMA Ruta" -> "Update Project" and "UIMA Ruta" -> "Convert
> to Ruta Project" but it did not help. Uninstalling 2.4 and reinstalling 2.3.1
> fixes it.
> This seems to be similar to https://issues.apache.org/jira/browse/UIMA-3189
> - - -
> Exception in thread "main" java.lang.NoClassDefFoundError:
> org/apache/uima/util/ProcessTrace
> at java.lang.Class.getDeclaredMethods0(Native Method)
> at java.lang.Class.privateGetDeclaredMethods(Class.java:2693)
> at java.lang.Class.privateGetMethodRecursive(Class.java:3040)
> at java.lang.Class.getMethod0(Class.java:3010)
> at java.lang.Class.getMethod(Class.java:1776)
> at
> sun.launcher.LauncherHelper.validateMainClass(LauncherHelper.java:544)
> at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:526)
> Caused by: java.lang.ClassNotFoundException: org.apache.uima.util.ProcessTrace
> at java.net.URLClassLoader$1.run(URLClassLoader.java:372)
> at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
> at java.security.AccessController.doPrivileged(Native Method)
> at java.net.URLClassLoader.findClass(URLClassLoader.java:360)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
> at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
> ... 7 more
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