8374341: Use of "\s" instead of "\\s" in CoreUtils.java results in splitting on backspace instead of whitespace

[thswlsqls]

Summary

Fix incorrect regex usage in CoreUtils.getCoreFileLocation.

Description

CoreUtils.getCoreFileLocation uses String.split("\s", 2).
The string literal "\s" represents a backspace character, not a whitespace regex.
As a result, the split operation does not separate fields on whitespace.
This change replaces the pattern with "\\s+" to correctly split on whitespace.
No other logic is modified.

Bug ID : JDK-8374341

https://bugs.java.com/bugdatabase/view_bug?bug_id=8374341

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Progress

• Change must be properly reviewed (1 review required, with at least 1 Reviewer)
• Change must not contain extraneous whitespace
• Commit message must refer to an issue

Issue

• JDK-8374341: Use of "\s" instead of "\s" in CoreUtils.java results in splitting on backspace instead of whitespace (Bug - P4)

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