Date: Tue, 23 Jan 2007 13:22:23 +1100 From: "Steve Joynt" <steve.joynt@gmail.com> To: freebsd-eclipse@freebsd.org Subject: Eclipse with java 1.4 Message-ID: <17dbe5f00701221822g5d38fa3eqa545734c2467d943@mail.gmail.com>
next in thread | raw e-mail | index | archive | help
Hi, I'm using eclipse 3.2.1, built from ports a couple of days ago. In preferences, under installed JREs, I have: /usr/local/diablo-jdk1.5.0 /usr/local/jdk1.4.2 (set as default) /usr/local/linux-sun-jdk1.4.2 With this configuration, I can't get any ant builds to run with eclipse - I get a console window that terminates immediately without any messages. In the ant preferences I've tried changing ANT_HOME to /usr/local/share/java/apache-ant, but that didn't help. I'm guessing it has something to do with eclipse being compiled with java 1.5. When I set the default jre to diablo-jdk1.5.0, the ant builds run ok. Is it possible to compile or run eclipse with java 1.4? The port's makefile overwrites JAVA_VERSION with 1.5+. When I try to run eclipse using the jdk1.4.2 vm, it fails: $ eclipse -vm /usr/local/jdk1.4.2/bin/java Exception in thread "main" java.lang.UnsupportedClassVersionError: org/eclipse/core/launcher/Main (Unsupported major.minor version 49.0) at java.lang.ClassLoader.defineClass0(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:537) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:123) at java.net.URLClassLoader.defineClass(URLClassLoader.java:251) at java.net.URLClassLoader.access$100(URLClassLoader.java:55) at java.net.URLClassLoader$1.run(URLClassLoader.java:194) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:187) at java.lang.ClassLoader.loadClass(ClassLoader.java:289) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:274) at java.lang.ClassLoader.loadClass(ClassLoader.java:235) at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:302) I'm pretty sure this means the classes were built with java 1.5 and can't be run with 1.4. I also tried setting JAVA_VERSION to 1.4, but eclipse seemed to ignore it. Thanks for any suggestions, Steve
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?17dbe5f00701221822g5d38fa3eqa545734c2467d943>