Apply FilePermCompat.newPermPlusAltPath to limited privileged permission

[JasonFengJ9]

Apply FilePermCompat.newPermPlusAltPath to limited privileged permission

Apply FilePermCompat.newPermPlusAltPath to limited privileged permission before checking incoming permission to ensure FilePermission compatibility after JDK-8164705.

Verified manually that the test suite JTReg test: sun/security/util/FilePermCompat/CompatImpact.java now passes. (#3104 fixed a specific sub-test within this test suite)

For what it's worth, following is a standalone testcase after digging deep into the regression test suite:

Test code main with default permission (i.e., without required security permission)

public static void main(String[] args) {
  CodebaseWithPerm.runWithPerm();
}

Code with java.security.AllPermission

public class CodebaseWithPerm {
	public static void runWithPerm() {
		AccessController.doPrivileged((PrivilegedAction<Boolean>)
			() -> new File("xxx").exists(),
			null,
			new FilePermission("/team/jasonf/tbd/xxx", "read"));
	}
}

Not adding this to the automated test since it is already included in the regression test suite.

Reviewer: @pshipton
FYI: @DanHeidinga

Signed-off-by: Jason Feng fengj@ca.ibm.com

[pshipton]

jenkins test all zlinux jdk11

[pshipton]

jenkins test extended zlinux jdk11