Eclipse crashes after opening deployed GAE app in browser

[akerekes]

On linux, after the deployment of a GAE/GWT application (simple project generated via GPE's new web application feature) finished, and Eclipse tries to open the browser with the url of the app an segfault happens:

#
# A fatal error has been detected by the Java Runtime Environment:
#
#  SIGSEGV (0xb) at pc=0x00007fc16ed69eaf, pid=27204, tid=27280
#
# JRE version: OpenJDK Runtime Environment (8.0) (build 1.8.0-google-v7-114555630-114530017)
# Java VM: OpenJDK 64-Bit Server VM (25.51-b03 mixed mode linux-amd64 compressed oops)
# Problematic frame:
# C  [libgdk-x11-2.0.so.0+0x4ceaf]  gdk_display_open+0x3f
#
# Failed to write core dump. Core dumps have been disabled. To enable core dumping, try "ulimit -c unlimited" before starting Java again
#
# An error report file with more information is saved as:
# /tmp/gpe45_testing/eclipse-mars-upgradelorry/hs_err_pid27204.log
#
# If you would like to submit a bug report, please visit:
#   http://b.corp.google.com/createIssue?component=32554
# The crash happened outside the Java Virtual Machine in native code.
# See problematic frame for where to report the bug.
#

If the checkbox to open the app in browser after deploy (in the GPE deploy dialog) is cleared, the app deploys successfully, and Eclipse does not crash.
Possibly related:
Sloeber/arduino-eclipse-plugin#397
https://bugs.eclipse.org/bugs/show_bug.cgi?id=430736

[akerekes]

For fix, add

-- launcher.GTK_version
2

to eclipse.ini
from https://h4ck3rprotocol.wordpress.com/author/h4ck3rprotocol/page/5/