Attempting to export/deploy an Eclipse plugin I created, Eclipse complains of bad ANT classpath

Answer 1

It does not seem to be related to eclipse 3.5 (it has been reported with eclipse3.2 or 3.1.2).

In one case, it was because the build was using:

 -Djava.endorsed.dirs

which happened to point on an old Ant version.

Another said its Ant->Runtime / "Ant Home" was erroneously set to the current project dir. setting it to /usr/share/ant makes ant work properly. (But you said that "eveything was in order" there).

A third had to manually add

/usr/lib/eclipse/plugins/org.apache.ant_1.6.5/lib/ant-launcher.jar

to the Ant classpath in the preferences to make it work.

It all boils dow to an older version of Ant being somehow referenced.

Answer 2

I tried for far too long to solve this problem, so I resorted to the good ol` truism, "Java hates OSX" and decided to try the whole process on Vista... and BAM! worked first time, no issues.

So, the answer to my question is "Don't use OSX, use Windows or Linux".

I'm not a jerk so I posted this platform bug in Eclipse bugzilla.

VonC was indeed awesome enough to give me really good advise and point to other bugs I couldn't find.. he deserves more votes..