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https://issues.apache.org/jira/browse/QPID-1844?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12707086#action_12707086
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Aidan Skinner commented on QPID-1844:
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apt-get install ant-optional
> Cannot build java source / javacc claimed missing
> -------------------------------------------------
>
> Key: QPID-1844
> URL: https://issues.apache.org/jira/browse/QPID-1844
> Project: Qpid
> Issue Type: Bug
> Components: Ant Build System
> Affects Versions: M4, 0.5
> Environment: Ubuntu 8.04, Ant 1.7.0, Sun JDK 1.6.0_07, JavaCC 4.1d1
> Reporter: Marcus Schröder
>
> When trying to build the java sources of these releases, the following error
> occurs:
> BUILD FAILED
> /home/mss/Desktop/qpid-0.5/java/build.xml:139: The following error occurred
> while executing this line:
> /home/mss/Desktop/qpid-0.5/java/build.xml:54: The following error occurred
> while executing this line:
> /home/mss/Desktop/qpid-0.5/java/broker/build.xml:35: Problem: failed to
> create task or type javacc
> Cause: the class org.apache.tools.ant.taskdefs.optional.javacc.JavaCC was not
> found.
> This looks like one of Ant's optional components.
> Action: Check that the appropriate optional JAR exists in
> -/usr/share/ant/lib
> -/home/mss/.ant/lib
> -a directory added on the command line with the -lib argument
> Do not panic, this is a common problem.
> The commonest cause is a missing JAR.
> This is not a bug; it is a configuration problem
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