RFR: 8341593: Problemlist java/foreign/TestUpcallStress.java in Xcomp mode

[SendaoYan]

A trivial fix to ProblemList `java/foreign/TestUpcallStress.java` in Xcomp mode.

-------------

Commit messages:
 - 8341593: Problemlist java/foreign/TestUpcallStress.java in Xcomp mode

Changes: https://git.openjdk.org/jdk/pull/21375/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=21375&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8341593
  Stats: 1 line in 1 file changed: 1 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/21375.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/21375/head:pull/21375

PR: https://git.openjdk.org/jdk/pull/21375