[BATIK-740] [PATCH] Headless problem in transcoders

• Type: Bug
• Status: Resolved
• Resolution: Fixed
• Affects Version/s: 1.8
• Component/s: SVG Rasterizer
• Labels: PatchAvailable
• Environment: Operating System: All; Platform: Other
• Assignee: Batik Developer's Mailing list
• Reporter: Hakan Soderstrom
• Created: 14/May/07 08:40
• Updated: 02/May/13 02:28
• Resolved: 22/Mar/11 10:24

Description

Transcoders have a problem with headless mode. The reason is they invoke
Toolkit.getDefaultToolkit().getScreenResolution() that throws
java.awt.HeadlessException (a RuntimeException) which then trips up the application.

Calls to the above method must catch the exception and assign a default screen
resolution, 100 DPI, for instance. I guess a serious solution would take a
parameter.

The following code contains such calls:
transcoder/ToSVGAbstractTranscoder.java
transcoder/wmf/tosvg/AbstractWMFReader.java
transcoder/wmf/tosvg/WMFPainter.java

Running transcoders in headless mode is very common.

Issue Links

• depends upon: BATIK-962 [META] Batik 1.8 release tracking bug
• is duplicated by: BATIK-762 WMFTranscoder can't be used in a headless environment
• is duplicated by: BATIK-913 Avoid java.awt.HeadlessException when using WMF transcoder functionality