Home » Eclipse Projects » Standard Widget Toolkit (SWT) » Drag and Drop from SWT to embbedded AWT frame (SWT_AWT) is broken on Linux GTK 3.22 (DND from SWT to embbedded AWT frame (SWT_AWT) is broken on Linux, application crashes in few minutes)
| Drag and Drop from SWT to embbedded AWT frame (SWT_AWT) is broken on Linux GTK 3.22 [message #1820652] |
Fri, 24 January 2020 15:11 |
 Serhiy Davydiuk
Messages: 6
Registered: March 2016 |
Junior Member |
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Does anyone know the root cause of this issue? Or any workaround that can help?
Thanks!
RedHat 7.4
GTK 3.22
OpenJDK 11.0.2
Create an SWT control and implement a DragSource for it (using SWT API),
then create an embedded AWT frame and implement a DropTarget for AWT component (using AWT API).
Drag and drop from SWT to AWT is broken: the AWT DropTarget does not receive drop events all the time. There are a lot of error messages from GTK and application crashes in few minutes (5-10m)
There is a bug in Bugzilla
https://bugs.eclipse.org/bugs/show_bug.cgi?id=551303
It's broken on GTK3, on GTK2 works fine. Tested versions: SWT 4.6-4.13. Java 8, OpenJDK 11.
For testing used Eclipse's snippet
https://git.eclipse.org/c/platform/eclipse.platform.swt.git/tree/examples/org.eclipse.swt.snippets/src/org/eclipse/swt/snippets/Snippet319.java
Crash log:
#
# A fatal error has been detected by the Java Runtime Environment:
#
# SIGSEGV (0xb) at pc=0x00007fe8f957ca03, pid=13753, tid=13754
#
# JRE version: OpenJDK Runtime Environment (11.0.2+9) (build 11.0.2+9)
# Java VM: OpenJDK 64-Bit Server VM (11.0.2+9, mixed mode, tiered, compressed oops, serial gc, linux-amd64)
# Problematic frame:
# C gtk_drag_finish+0x23
#
# Core dump will be written. Default location: Core dumps may be processed with "/usr/libexec/abrt-hook-ccpp %s %c %p %u %g %t e %P %I %h" (or dumping to /home/serhii/Workspace/Testing/core.13753)
#
# If you would like to submit a bug report, please visit:
# http://bugreport.java.com/bugreport/crash.jsp
# The crash happened outside the Java Virtual Machine in native code.
# See problematic frame for where to report the bug.
#
--------------- S U M M A R Y ------------
Command Line: -Dfile.encoding=UTF-8 DnDTest
Host: Intel(R) Core(TM) i7-8700 CPU @ 3.20GHz, 1 cores, 15G, CentOS Linux release 7.4.1708 (Core)
Time: Thu Sep 19 07:03:44 2019 EDT elapsed time: 326 seconds (0d 0h 5m 26s)
--------------- T H R E A D ---------------
Current thread (0x00007fe924010000): JavaThread "main"
Stack: , sp=0x00007fe92d5886e0, free space=1021k
Native frames: (J=compiled Java code, A=aot compiled Java code, j=interpreted, Vv=VM code, C=native code)
C gtk_drag_finish+0x23
Java frames: (J=compiled Java code, j=interpreted, Vv=VM code)
J 658 org.eclipse.swt.internal.gtk.OS._g_main_context_iteration(JZ)Z (0 bytes) @ 0x00007fe914759314
J 1052 c2 org.eclipse.swt.widgets.Display.readAndDispatch()Z (77 bytes) @ 0x00007fe91478038c [0x00007fe914780160+0x000000000000022c]
j DnDTest.main([Ljava/lang/String;)V+209
v ~StubRoutines::call_stub
siginfo: si_signo: 11 (SIGSEGV), si_code: 1 (SEGV_MAPERR), si_addr: 0x0000004000000003
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