Additional info:
Windows 10 Pro, 64 bit
Linux Ubuntu 19.10 64 bit

Tested on
JDK 14 build 27.

Testcase javax/swing/JTabbedPane/TabProb.java failed with below mentioned error.
----------System.err:(14/972)----------
java.lang.RuntimeException: JTabbedPane preferred size calculation is wrong for SCROLL_TAB_LAYOUT
at TabProb.test(TabProb.java:123)
at TabProb.main(TabProb.java:92)
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:127)
at java.base/java.lang.Thread.run(Thread.java:832)

JavaTest Message: Test threw exception: java.lang.RuntimeException: JTabbedPane preferred size calculation is wrong for SCROLL_TAB_LAYOUT
JavaTest Message: shutting down test

STATUS:Failed.`main' threw exception: java.lang.RuntimeException: JTabbedPane preferred size calculation is wrong for SCROLL_TAB_LAYOUT