[9] Review Request: 8130525 Build failure on jdk9-client solaris-sparcv9

[Sergey Bylokhov]

Hello.
Please review the fix for jdk9.

In the fix for JDK-7188942 I forgot to cleanup the mapfiles when I 
removed initPbuffer() method.

Bug: https://bugs.openjdk.java.net/browse/JDK-8130525
Webrev can be found at: http://cr.openjdk.java.net/~serb/8130525/webrev.00

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Best regards, Sergey.