JDK-6707273 : TrayIcon does not support 8-bit alpha channel in Windows XP
- Type: Bug
- Component: client-libs
- Sub-Component: java.awt
- Affected Version: 6,7
- Priority: P3
- Status: Resolved
- Resolution: Fixed
- OS: windows,windows_xp
- CPU: x86
- Submitted: 2008-05-27
- Updated: 2013-09-12
- Resolved: 2009-11-25
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| JDK 6 | JDK 7 |
|---|---|
6u32Fixed  |
7 b77Fixed |
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Description
FULL PRODUCT VERSION : java version "1.6.0_10-beta" Java(TM) SE Runtime Environment (build 1.6.0_10-beta-b23) Java HotSpot(TM) Client VM (build 11.0-b11, mixed mode, sharing) Note: this bug is also affecting 1.6.0_06 ADDITIONAL OS VERSION INFORMATION : Windows XP SP2 A DESCRIPTION OF THE PROBLEM : The TrayIcon class only supports 1-bit transparency in Windows XP. It may be affecting Vista as well. Please see this forum thread for further information: http://forums.java.net/jive/thread.jspa?threadID=25489 It seems as though the bug as already been fixed in JDIC, but for some reason this fix has not been applied in either 1.6.0_06 or 1.6.0_10-beta-b23 https://jdic.dev.java.net/issues/show_bug.cgi?id=350 STEPS TO FOLLOW TO REPRODUCE THE PROBLEM : Create an image with 8-bit alpha channel transparency and add it to the System Tray. EXPECTED VERSUS ACTUAL BEHAVIOR : EXPECTED - Varying alpha values should result in varying levels of transparency. ACTUAL - An alpha value of 0 results in a fully transparent pixel, but an alpha value of greater than 0 results in a fully opaque pixel. REPRODUCIBILITY : This bug can be reproduced always.
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