RFR: 8194154 patch for crash at File.getCanonicalPath()

[Wenqian Pei]

Hi:

Bug: https://bugs.openjdk.java.net/browse/JDK-8194154

We found that if user defines -Duser.dir like "/home/a/b/c/", jvm will crash at File.getCanonicalPath() in java process bootstrap (before invoking user's java code). The native implematation of canonicalize_md.c:collapsible(char *names) has problem in processing double '/', parameter 'names' need normalized before JNI_CALL.

This patch normalize parameters before call canonicalize0() in this call path

Patch and test are in mailbox attachments.

Can I please have a review for this patch?


Thanks


Wenqian Pei