[ant 0005083]: Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/tools/ant/launch/Launcher

[Mantis Bug Tracker via bug-notifications]

A NOTE has been added to this issue. 
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https://www.opencsw.org/mantis/view.php?id=5083 
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Reported By:                blindpassenger
Assigned To:                
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Project:                    ant
Issue ID:                   5083
Category:                   regular use
Reproducibility:            always
Severity:                   major
Priority:                   normal
Status:                     new
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Date Submitted:             2013-06-12 12:02 CEST
Last Modified:              2013-10-23 18:25 CEST
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Summary:                    Exception in thread "main"
java.lang.NoClassDefFoundError: org/apache/tools/ant/launch/Launcher
Description: 
when executing ant I am always getting the following error message:

Exception in thread "main" java.lang.NoClassDefFoundError:
org/apache/tools/ant/launch/Launcher

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 (0010606) spm (reporter) - 2013-10-23 18:25
 https://www.opencsw.org/mantis/view.php?id=5083#c10606 
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I just upgraded from Ant 1.7.1 and hit this.

The ant script checks if the path it is started with is a symbolic link
(/opt/csw/bin/ant to /opt/csw/share/java/ant/bin/ant) and  calculates
ANT_HOME relative to the link destination which is what causes the
problem.

Using a hard link rather than a symbolic link fixes this.