RFR(S): 8248112: array index out of bound in FileMapInfo::check_paths

[Calvin Cheung]

JBS: https://bugs.openjdk.java.net/browse/JDK-8248112

webrev: http://cr.openjdk.java.net/~ccheung/jdk16/8248112/webrev.00/

create_path_array() ignores non-existing paths. Although the dump time and
runtime app classpath lengths are the same initially, after the call to
create_path_array(), the runtime app classpath length could become
shorter. We consider app classpath mismatch in this case.

Similar check should be applied to bootclasspath as well.

Testing: appcds tests locally on linux-x64
              tier1 and 2 tests (in progress)

thanks,

Calvin