Difference between revisions of "JavaAwt"

Revision as of 13:47, 9 June 2009

Ecj problem, bulding classpath

If you run into problems that your environment has an ecj that does not pass the checks in configure. You might want to try this: To ensure that your Gentoo has the right version of the eclipse compiler First you may have to unmerge the current eclipse-ecj

# emerge --unmerge eclipse-ecj
# cd /etc/portage
# echo ">=dev-java/eclipse-ecj-3.4" >> package.mask
# emerge eclipse-ecj --pretend
# emerge eclipse-ecj

Then,

# bitbake classpath -c clean 
# bitbake classpath

Building Classpath

Building Classpath resulted in an error that was caused by a faulty classpath to the antlr.jar. The error may be a symptom of something else but --with_antlr_jar= addition to classpath_0.98.bb recipe got me past the issue:

EXTRA_OECONF += "\
               --disable-alsa \
               --disable-dssi \
               --disable-qt4-peer \
               --disable-plugin \
               --enable-gconf-peer \
               --enable-gtk-peer \
               --enable-local-sockets \
               --with-vm=java \
             --with_antlr_jar=~/overo-stable/tmp/staging/i686-linux/usr/share/java/antlr.jar \
              "

other isseus with classpath

Got a problem when building classpath: Invalid flag -1.5 Solution found here

a Know bug when building java. |here

Java on the stick

I still seem to miss some setting or packages to make it work.

po@gumstix-custom-verdex:~/proto$ java ShowMe
java.awt.AWTError: Cannot load AWT toolkit: gnu.java.awt.peer.gtk.GtkToolkit
  at java.awt.Toolkit.getDefaultToolkit(Toolkit.java:607)
  at java.awt.GraphicsEnvironment.getLocalGraphicsEnvironment(GraphicsEnvironment.java:103)
  at java.awt.Window.<init>(Window.java:133)
  at java.awt.Frame.<init>(Frame.java:246)
  at ShowMe.main(ShowMe.java:35)
Caused by: java.lang.UnsatisfiedLinkError: Native library `gtkpeer' not found (as file   `libgtkpeer.so') in gnu.classpath.boot.library.path and java.library.path
  at java.lang.Runtime.loadLibrary(Runtime.java:763)
  at java.lang.System.loadLibrary(System.java:662)
  at gnu.java.awt.peer.gtk.GtkToolkit.<clinit>(GtkToolkit.java:173)
  at java.lang.VMClass.forName(Native Method)
  at java.lang.Class.forName(Class.java:233)
  at java.awt.Toolkit.getDefaultToolkit(Toolkit.java:583)
  ...4 more