Problem with netbeans-3.6 (freebsd 5.2 release) Exception in thread "main" java.lang.UnsupportedClassVersionError:

[Panagiotis Astithas]

Jose Aranes wrote:
>  Hi all
> 
>  1) portinstall 
>   
>   # portinstall netbeans
> [Updating the pkgdb <format:bdb1_btree> in /var/db/pkg
> ... - 197 packages found (-1 +0) (...) done]
> --->  Installing 'netbeans-3.6' from a port
> (java/netbeans)
> --->  Building '/usr/ports/java/netbeans'
> ===>  Cleaning for gettext-0.13.1_1
> ===>  Cleaning for glib-1.2.10_10
> ===>  Cleaning for nspr-4.4.1_1
> ===>  Cleaning for javavmwrapper-1.5
> ===>  Cleaning for jdk-1.3.1p9_4
> ===>  Cleaning for urwfonts-1.0
> ===>  Cleaning for gtk-1.2.10_12
> ===>  Cleaning for open-motif-2.2.2_2
> ===>  Cleaning for netbeans-3.6
> ===>  Vulnerability check disabled
> ===>  Extracting for netbeans-3.6
> 
>>>Checksum OK for netbeans-3_6.tar.bz2.
> 
> ===>  Patching for netbeans-3.6
> Hmm...  Looks like a unified diff to me...
> The text leading up to this was:
> --------------------------
> |
> |$FreeBSD:
> ports/java/netbeans/files/bin_runide.sh.diff,v 1.3
> 2004/04/16 13:51:23 olgeni Exp $
> |
> |--- bin/runide.sh.orig Tue Jun  3 11:23:09 2003
> |+++ bin/runide.sh      Wed Jun 11 12:30:37 2003
> --------------------------
> Patching file
> /usr/ports/java/netbeans/work/netbeans/bin/runide.sh
> using Plan A...
> Hunk #1 succeeded at 131.
> done
> ===>  Configuring for netbeans-3.6
> --->  Installing the new version via the port
> ===>  Installing for netbeans-3.6
> ===>   netbeans-3.6 depends on file:
> /usr/local/jdk1.3.1/bin/java - found
> ===>   Generating temporary packing list
> ===>  Checking if java/netbeans already installed
> ===>   Registering installation for netbeans-3.6
> ===>  Cleaning for gettext-0.13.1_1
> ===>  Cleaning for glib-1.2.10_10
> ===>  Cleaning for nspr-4.4.1_1
> ===>  Cleaning for javavmwrapper-1.5
> ===>  Cleaning for jdk-1.3.1p9_4
> ===>  Cleaning for urwfonts-1.0
> ===>  Cleaning for gtk-1.2.10_12
> ===>  Cleaning for open-motif-2.2.2_2
> ===>  Cleaning for netbeans-3.6
> [Updating the pkgdb <format:bdb1_btree> in /var/db/pkg
> ... - 198 packages found (-0 +1) . done]
> 
> #  
> 
>  % more .chsrc
> 
>   set path = (/sbin /bin /usr/sbin /usr/bin /usr/games
> /usr/local/sbin /usr/local/bin /usr/X11R6/bin
> /usr/local/jdk1.3.1/bin  $HOME/bin)
> 
>  setenv  JAVA_HOME /usr/local/jdk1.3.1
>  setenv  JDK_HOME /usr/local/jdk1.3.1
> 
>  jdk1.3.1 alone, works perfectly (javac, java,
> javadoc, etc) but...
> 
>  I take this problem when try to start netbeans:
> 
>  %netbeans  --jdkhome /usr/local/jdk1.3.1
> Exception in thread "main"
> java.lang.UnsupportedClassVersionError:
> org/netbeans/Main (Unsupported major.minor version
> 48.0)
>         at java.lang.ClassLoader.defineClass0(Native
> Method)
>         at
> java.lang.ClassLoader.defineClass(ClassLoader.java:486)
>         at
> java.security.SecureClassLoader.defineClass(SecureClassLoader.java:111)
>         at
> java.net.URLClassLoader.defineClass(URLClassLoader.java:248)
>         at
> java.net.URLClassLoader.access$100(URLClassLoader.java:56)
>         at
> java.net.URLClassLoader$1.run(URLClassLoader.java:195)
>         at
> java.security.AccessController.doPrivileged(Native
> Method)
>         at
> java.net.URLClassLoader.findClass(URLClassLoader.java:188)
>         at
> java.lang.ClassLoader.loadClass(ClassLoader.java:297)
>         at
> sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:286)
>         at
> java.lang.ClassLoader.loadClass(ClassLoader.java:253)
>         at
> java.lang.ClassLoader.loadClassInternal(ClassLoader.java:313)
> %

It seems that netbeans doesn't support JDK1.3.1, but only 1.4+. Try the 
following patch:

-----------------------------------------------------------------
--- /usr/ports/java/netbeans/Makefile   Thu Apr 22 11:15:17 2004
+++ Makefile    Wed May 26 10:00:01 2004
@@ -15,7 +15,8 @@
  COMMENT=       A full-featured integrated environment for Java

  USE_BZIP2=     yes
-USE_JAVA=      1.3+
+USE_JAVA=      yes
+JAVA_VERSION=  1.4+
  NO_BUILD=      yes
  RESTRICTED=    "Restrictive license"

-----------------------------------------------------------------

-- 
Panagiotis Astithas
Electrical & Computer Engineer, PhD
Network Management Center
National Technical University of Athens, Greece