jedit autocomplete broken on openjdk vs sun jdk

[Phil]

jedit ctrl-b autocomplete is broken under openjdk, but works on sun java

To reproduce:
create a blank document in jedit

type "foo foobar fo"

then press ctrl-b, which should bring up an autocomplete popup, but instead flashes something up and inserts a square box into the document

Here are the version numbers of the stuff I'm running:
$ lsb_release -rd
Description: Ubuntu 10.04.1 LTS
Release: 10.04

jedit 4.3.2

$ java -version
java version "1.6.0_18"
OpenJDK Runtime Environment (IcedTea6 1.8.1) (6b18-1.8.1-0ubuntu1)
OpenJDK Client VM (build 16.0-b13, mixed mode, sharing)

$ java -version
java version "1.6.0_22"
Java(TM) SE Runtime Environment (build 1.6.0_22-b04)
Java HotSpot(TM) Client VM (build 17.1-b03, mixed mode, sharing)

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: openjdk-6-jre 6b18-1.8.1-0ubuntu1
ProcVersionSignature: Ubuntu 2.6.32-25.45-generic 2.6.32.21+drm33.7
Uname: Linux 2.6.32-25-generic i686
Architecture: i386
Date: Tue Oct 26 19:57:41 2010
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100427.1)
ProcEnviron:
 PATH=(custom, user)
 LANG=en_GB.utf8
 SHELL=/bin/bash
SourcePackage: openjdk-6

[Robert Schwenn (rschwenn)]

I can't reproduce the issue with this system:
Ubuntu 10.10
jEdit 4.3.2
Java 1.6.0_20-b20 (/usr/lib/jvm/java-6-openjdk/jre)

Also, the shell command "$ java -version" doesn't necessarily report the JVM that's used by jEdit. Please double-check inside jEdit via "Utilities -> Troubleshooting -> Activity Log" and look for "java.home=".