Bug#850553: eclipse-gef: FTBFS: pde-build -a "-DjavacTarget=1.5 -DjavacSource=1.5 -DbuildId=dist -DforceContextQualifier=dist" -f org.eclipse.draw2d returned exit code 13

[Emmanuel Bourg]

This issue was caused by the upload of Ant 1.9.8. In this version the
systemClasspath field in the Path class was made final [1], and the
InternalAntRunner class in Eclipse attempts to modify it [2], leading to
the IllegalAccessError that can be seen in the .metadata/.log file.

Most eclipse based packages are potentially affected.

I plan to revert the modification in Ant and make the field non final.

Emmanuel Bourg

[1] https://github.com/apache/ant/commit/984a03d
[2]
https://github.com/eclipse/eclipse.platform/blob/R4_6_maintenance/ant/org.eclipse.ant.core/src_ant/org/eclipse/ant/internal/core/ant/InternalAntRunner.java