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avazquezdev
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Feb 10, 2026
JamVM needs a java compiler when building for GNU Classpath, in order to compile the VM support classes (classes.zip). The javac invocation uses -bootclasspath, but on JDK 9+ this needs explicit -source/-target. Fix by adding -source 1.6 -target 1.6 to javac options (same as used by GNU Classpath itself). Signed-off-by: Guillermo Rodríguez <grodriguez@ingelabs.com>
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Reverted the GCJ/Jikes change. This PR was only about adding support for newer javac. |
avazquezdev
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Feb 16, 2026
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JamVM needs a java compiler when building for GNU Classpath, in order to compile the VM support classes (classes.zip). Currently, this breaks on JDK 9 or later, since the javac invocation uses -bootclasspath, which (on JDK 9+) needs explicit -source/-target.
Fix by adding -source 1.6 -target 1.6 to javac options (same as used by GNU Classpath itself).
While we are at this, also drop support for GCJ and Jikes. GCJ was officially discontinued in 2016 (removed from GCC 7). Jikes support was also removed from GNU Classpath long ago.