#1885 Scalac: Crash in jEdit 5.4.0

[Vaclav Votipka]

jEdit version: 5.4.0
Scalac plugin version: 1.1.0
Java version: Oracle Java 1.8.0_121
Steps to reproduce: run jEdit with Scalac plugin installed
Expected result: no error appears
Current result: this message appears:

/home/vaclav/.jedit/jars/ScalacPlugin.jar:
Cannot start: java.lang.NoSuchMethodError: org.gjt.sp.util.IOUtilities.closeQuietly(Ljava/io/InputStream;)V
Try updating to a newer version of the plugin.

Activity log:

5:07:03 PM [main] [notice] ScalacPlugin: copying resource /resources/catalog to modes/catalog
5:07:03 PM [main] [error] PluginJAR: Error while starting plugin scalac.ScalacPlugin
5:07:03 PM [main] [error] PluginJAR: java.lang.NoSuchMethodError: org.gjt.sp.util.IOUtilities.closeQuietly(Ljava/io/InputStream;)V
5:07:03 PM [main] [error] PluginJAR:  at scalac.ScalacPlugin.copyResource(scalac.scala:417)
5:07:03 PM [main] [error] PluginJAR:  at scalac.ScalacPlugin.start(scalac.scala:381)
5:07:03 PM [main] [error] PluginJAR:  at org.gjt.sp.jedit.PluginJAR.startPlugin(PluginJAR.java:1740)
5:07:03 PM [main] [error] PluginJAR:  at org.gjt.sp.jedit.PluginJAR.activatePlugin(PluginJAR.java:951)
5:07:03 PM [main] [error] PluginJAR:  at org.gjt.sp.jedit.PluginJAR.activatePluginIfNecessary(PluginJAR.java:1021)
5:07:03 PM [main] [error] PluginJAR:  at org.gjt.sp.jedit.jEdit.main(jEdit.java:550)
5:07:03 PM [main] [error] ErrorListDialog$ErrorEntry: /home/vaclav/.jedit/jars/ScalacPlugin.jar:
5:07:03 PM [main] [error] ErrorListDialog$ErrorEntry: Cannot start: java.lang.NoSuchMethodError: org.gjt.sp.util.IOUtilities.closeQuietly(Ljava/io/InputStream;)V
5:07:03 PM [main] [error] ErrorListDialog$ErrorEntry: Try updating to a newer version of the plugin.

[Eric Le Lay]

The scalac plugin requires a rebuild:
org.gjt.sp.util.IOUtilities.closeQuietly(Ljava/io/InputStream;)V has been changed to org.gjt.sp.util.IOUtilities.closeQuietly(Ljava/io/Closeable;)V which is source but not binary compatible.

[Dale Anson]

So all this needs is a rebuild? No code changes?

[Eric Le Lay]

It would only need a rebuild to solve this problem.
Other problem are scala 2.7.5 is too old to compile with java 8, jetty-6.1.19.zip is nowhere to be found, so the plugin doesn't build anymore.
Code is at https://github.com/vseryakov/scalac-jedit

[Robin Vobruba]

i fixed the plugin code up abit, to compile and load with latest jedit, and to include build instructions:
https://github.com/hoijui/scalac-jedit
(related pull request is here:
https://github.com/vseryakov/scalac-jedit/pull/2 )

it still fails to compile when used in jEdit though -> help appreciated! (i have zero scala experience)

and btw: it seems to be very rudimentary