msiexec will exit almost immediately after install or uninstall command is executed. This is limitation of msiexec. We need to find out how we can wait when install/uninstall actually completed.
This issue is reproducible intermittently.

For example following command will fail:
bash test_jpackage.sh -t JDK_TO_TEST -v -- -Djpackage.test.disabledPackagers=exe -Djpackage.test.keep-work-dir=p,f test/jdk/tools/jpackage/share/EmptyFolderPackageTest.java