ADDITIONAL SYSTEM INFORMATION :
$ uname -a
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

JDK under test: /Users/vprovodin/workspace/jdk/openjdk/openjdk-11-ea+23_osx-x64/Contents/Home
openjdk version "11-ea" 2018-09-25
OpenJDK Runtime Environment 18.9 (build 11-ea+23)
OpenJDK 64-Bit Server VM 18.9 (build 11-ea+23, mixed mode)

A DESCRIPTION OF THE PROBLEM :
The test javax/swing/JInternalFrame/8069348/bug8069348.java fails on MacOSX with the message "Internal frame is not correctly dragged!"
The issue is reproduced with 10.0.2 and 11
It was observed on Windows with 10.0.2
Please note the earlier submitted issue JDK-8193896, which described similar behaviour, was closed as Cannot reproduce.

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
$ jtreg -ignore:quiet -v -a -xml -testjdk:"/Users/vprovodin/workspace/jdk/openjdk/openjdk-11-ea+23_osx-x64/Contents/Home/" -javaoptions:"-Djava.awt.headless=false" test/javax/swing/JInternalFrame/8069348/bug8069348.java

C:>java -jar jtreg-4.2-b12\lib\jtreg.jar -testjdk:"C:\Program Files\Java\jdk-10.0.2" -javaoptions:"-Djava.awt.headless=false" test\javax\swing\JInternalFrame\8069348\bug8069348.java


ACTUAL -
#section:main
----------messages:(5/303)----------
command: main -Dsun.java2d.uiScale=2 bug8069348
reason: User specified action: run main/othervm -Dsun.java2d.uiScale=2 bug8069348
Mode: othervm [/othervm specified]
Additional options from @modules: --add-modules java.desktop --add-exports java.desktop/sun.awt=ALL-UNNAMED
elapsed time (seconds): 2.15
----------configuration:(4/97)----------
Boot Layer
  add modules: java.desktop
  add exports: java.desktop/sun.awt ALL-UNNAMED

----------System.out:(0/0)----------
----------System.err:(13/856)----------
java.lang.RuntimeException: Internal frame is not correctly dragged!
at bug8069348.main(bug8069348.java:93)
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:566)
at com.sun.javatest.regtest.agent.MainWrapper$MainThread.run(MainWrapper.java:115)
at java.base/java.lang.Thread.run(Thread.java:834)

JavaTest Message: Test threw exception: java.lang.RuntimeException: Internal frame is not correctly dragged!
JavaTest Message: shutting down test

STATUS:Failed.`main' threw exception: java.lang.RuntimeException: Internal frame is not correctly dragged!

---------- BEGIN SOURCE ----------
http://hg.openjdk.java.net/jdk/jdk11/file/17b7d7034e8e/test/jdk/javax/swing/JInternalFrame/8069348/bug8069348.java
http://hg.openjdk.java.net/jdk10/jdk10/jdk/file/777356696811/test/javax/swing/JInternalFrame/8069348/bug8069348.java
---------- END SOURCE ----------

FREQUENCY : always