Bug ID: JDK-8049198 [macosx] Incorrect thread access when showing splash screen

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JDK 8	JDK 9
8u40Fixed	9 b26Fixed

The bug is probably a regression of the following fix: JDK-8043869
Reproducible with SwingSet2 started from the command line. The following warning is printed to the console:

NSScreen should be called the first time from the main thread (usually as part of -[NSApplication init]) to maintain consistency. (
	0   AppKit                              0x00007fff84c1609a +[NSScreen _prepare] + 56
	1   libobjc.A.dylib                     0x00007fff8f2e0bd0 _class_initialize + 655
	2   libobjc.A.dylib                     0x00007fff8f2ef3c9 lookUpImpOrForward + 172
	3   libobjc.A.dylib                     0x00007fff8f2db1ac objc_msgSend + 236
	4   libsplashscreen.dylib               0x0000000120cd0e1c SplashNSScreen + 44
	5   libsplashscreen.dylib               0x0000000120ccf8af SplashGetScaledImageName + 95
	6   java                                0x00000001029a89b3 ShowSplashScreen + 76
	7   java                                0x00000001029aa810 PostJVMInit + 263
	8   java                                0x00000001029a7b26 JavaMain + 2455
	9   libsystem_pthread.dylib             0x00007fff81f1e780 _pthread_body + 131
	10  libsystem_pthread.dylib             0x00007fff81f1e6fd _pthread_body + 0
	11  libsystem_pthread.dylib             0x00007fff81f1c94d thread_start + 13

The issue is reproducible on 10.10 Yosemite

Duplicate :	JDK-8146952 - Fatal error when running JavaFX application on OSX running on Vmware
Duplicate :	JDK-8066851 - JRE stops working suddenly, some native fatal error
Relates :	JDK-8043869 - [macosx] java -splash does not honor @2x hi dpi notation for retina support