RFR: JDK-8028726 - (prefs) Check src/solaris/native/java/util/FileSystemPreferences.c for JNI pending exceptions

[Dan Xu]

Hi All,

Please review the simple fix for JNI pending exceptions in 
FileSystemPreferences.c. Thanks!

Bug: https://bugs.openjdk.java.net/browse/JDK-8028726
Webrev: http://cr.openjdk.java.net/~dxu/8028726/webrev/

-Dan