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Equinox Launcher Issues

Revision as of 18:04, 24 April 2007 by Andrew.niefer.ca.ibm.com (Talk | contribs) (JNI Launching)

This page outlines the current situation with the equinox launcher.

JNI Launching

linux.ppc, linux.x86_64 and aix.ppc experience crashes with older vms, and therefore currently default to running java as a separate process. The following table outlines these platforms and their JNI launching status with different vms.

JNI launching Information
Platform Reference VM Other tested VMs
gtk.linux.ppc IBM-1.4.2sr7 - works IBM 1.5.0 jcldp32dev-20070105 works
IBM 1.5.0 pxp32devifx-20060124 crashes
gtk.linux.x86_64 Sun 5.0 Update 11 - not tested IBM 1.4.2 j9xa64142-20061124 works
Sun 1.5.0_09-b02 server crashes

IBM 1.4.2 j9xa64142-20060120 crashes

motif.aix.ppc IBM-1.5.0sr4 - fails

"A file or directory in the path name does not exist."

Windows Console

The eclipse.exe is linked on windows as a GUI application, which means the OS does not automatically allocate a console for it. This causes us several console related problems. See bug 168726, bug 167310, and bug 173962. Exact behaviour depends on the specific vm.

By linking the eclipse executable as a console application, all the console problems are solved. There are 2 options:

  • link eclipse.exe as a console application, The console will always come up, but can be torn down if not desired (it will always flash).
  • link a separate eclipse.com executable as a console application. In a console, windows will run "eclipse.com" before "eclipse.exe" if someone types only "eclipse".
*Do we brand eclipse.com with an icon
*What happens with batch files, people may get consoles when they weren't expecting one.
Windows Console
VM Java IO to console Native IO to console Ctrl+Break in console redirectable IO (eclipse -debug > debug.txt)
IBM 1.4.2 cn142ifx-20060209 No Yes crash Yes
IBM 1.5.0 pwidevifx-20060124 Yes Yes Yes No
Sun 1.4.2_12 No Yes No* No - Ctrl+Break stack trace does redirect
Sun 1.5.0_07 Yes Yes No* No - Ctrl+Break stack trace does redirect
Sun 1.6.0-b105 Yes Yes Yes No

Swing Applications on MacOSX

Mac is the only platform that always runs the vm in-process. The launcher by always created the vm on the main thread. This was a problem for Swing. See bug 181698. An argument "--launcher.secondThread" was added for the Mac to enable Swing applications. SWT will not work with this argument specified.

Should we also support the old mode of forking the vm on the mac?