As mentioned in JDK-8355478, the automated test DoubleActionESC.java was not correctly verifying the expected behavior because the count of latch was 1 while it had to be 2. After fixing this issue, a bug was revealed that only affects Linux, while it works fine on all other platforms.

The test succeeds when the GtkFileDialogs is disabled
System.setProperty("sun.awt.disableGtkFileDialogs", "true");