[TEST_BUG] javax/swing/JInternalFrame/DockIconRepaint/DockIconRepaint.java: Wrong color

ADDITIONAL SYSTEM INFORMATION :
Darwin unit 17.7.0 Darwin Kernel Version 17.7.0: Thu Jun 21 22:53:14 PDT 2018; root:xnu-4570.71.2~1/RELEASE_X86_64 x86_64

A DESCRIPTION OF THE PROBLEM :
The test javax/swing/JInternalFrame/DockIconRepaint/DockIconRepaint.java fails on MacOSX with the message "java.lang.RuntimeException: Wrong color."
The issue was observed on jdk9 and jdk10.

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
jtreg -ignore:quiet -v -a -xml -testjdk:"/Library/Java/JavaVirtualMachines/jdk-10.0.1.jdk/Contents/Home/" -javaoptions:"-Djava.awt.headless=false" test/javax/swing/JInternalFrame/DockIconRepaint/DockIconRepaint.java

ACTUAL -
#section:main
----------messages:(5/204)----------
command: main DockIconRepaint
reason: Assumed action based on file name: run main DockIconRepaint
Mode: othervm
Additional options from @modules: --add-modules java.desktop
elapsed time (seconds): 5.127
----------configuration:(3/40)----------
Boot Layer
  add modules: java.desktop

----------System.out:(0/0)----------
----------System.err:(17/933)----------
WARNING: GL pipe is running in software mode (Renderer ID=0x1020400)
Exp: ff0000ff
Actual: ffffffff
java.lang.RuntimeException: Wrong color.
at DockIconRepaint.test(DockIconRepaint.java:102)
at DockIconRepaint.main(DockIconRepaint.java:62)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:564)
at com.sun.javatest.regtest.agent.MainWrapper$MainThread.run(MainWrapper.java:115)
at java.base/java.lang.Thread.run(Thread.java:844)

JavaTest Message: Test threw exception: java.lang.RuntimeException: Wrong color.
JavaTest Message: shutting down test

STATUS:Failed.`main' threw exception: java.lang.RuntimeException: Wrong color.

---------- BEGIN SOURCE ----------
http://hg.openjdk.java.net/jdk9/jdk9/jdk/file/65464a307408/test/javax/swing/JInternalFrame/DockIconRepaint/DockIconRepaint.java
---------- END SOURCE ----------

FREQUENCY : always