JDK-8350203 : [macos] Newlines and tabs are not ignored when drawing text to a Graphics2D object
  • Type: Bug
  • Component: client-libs
  • Sub-Component: 2d
  • Affected Version: 23,24,25
  • Priority: P4
  • Status: Resolved
  • Resolution: Fixed
  • Submitted: 2025-02-17
  • Updated: 2025-05-21
  • Resolved: 2025-05-13
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JDK 25
25 b23Fixed
Related Reports
Blocks :  
JDK-8355528 - Update HarfBuzz to 11.2.0
Causes :  
JDK-8356966 - java/awt/Graphics2D/DrawString/IgnoredWhitespaceTest.java fails on Linux after JDK-8350203
Relates :  
JDK-8148334 - The regression case: java/awt/print/PrinterJob/PrintTextTest.java failed as the printed pages do not match the shown pages
Description
On other platforms like Windows and Linux, the \n, \r and \t characters are ignored when drawing text to a Graphics2D object. On macOS this is not currently the case.

See, for example, CMap.getControlCodeGlyph(int, boolean) or RasterPrinterJob.removeControlChars(String).

This bug was found while running test/jdk/java/awt/print/PrinterJob/PrintTextTest.java on macOS.
Comments
The Linux ppc64le machine is Linux RHEL 8.5 . So it is not only something that is seen on SUSE 15.X . I created https://bugs.openjdk.org/browse/JDK-8356966 .
14-05-2025
[~mbaesken] Seems like it might be distribution-specific. Is the Linux ppc64le box also SLES 15.3?
14-05-2025
The new test java/awt/Graphics2D/DrawString/IgnoredWhitespaceTest fails now on Linux in our nightly tests; should we maybe make the test macOS only for now until the Linux issues are sorted out ? We see failures on Linux x86_64 (SLES15.3 machine), but also on Linux ppc64le . Example Failure : ----------System.out:(0/0)---------- ----------System.err:(14/1181)*---------- java.lang.RuntimeException: for text '\\t\\t\\t\\t\\tXXXXX': java.awt.Rectangle[x=300,y=273,width=119,height=26] != java.awt.Rectangle[x=356,y=273,width=119,height=26] at IgnoredWhitespaceTest.assertEqual(IgnoredWhitespaceTest.java:126) at IgnoredWhitespaceTest.test(IgnoredWhitespaceTest.java:96) at IgnoredWhitespaceTest.test(IgnoredWhitespaceTest.java:69) at IgnoredWhitespaceTest.main(IgnoredWhitespaceTest.java:62) at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104) at java.base/java.lang.reflect.Method.invoke(Method.java:565) at com.sun.javatest.regtest.agent.MainWrapper$MainTask.run(MainWrapper.java:138) at java.base/java.lang.Thread.run(Thread.java:1447)
14-05-2025
Changeset: 85db4631 Branch: master Author: Daniel Gredler <dgredler@openjdk.org> Committer: Alexey Ivanov <aivanov@openjdk.org> Date: 2025-05-13 10:37:57 +0000 URL: https://git.openjdk.org/jdk/commit/85db4631ae5208fba74fa8b8638c32d4e42d3268
13-05-2025
A pull request was submitted for review. Branch: master URL: https://git.openjdk.org/jdk/pull/23665 Date: 2025-02-17 14:06:53 +0000
17-02-2025