Check for illegal bits in SelfSuspendDisablerTest

Fixes: eclipse-openj9/openj9#16276 Signed-off-by: Babneet Singh <sbabneet@ca.ibm.com>
babsingh · Dec 5, 2022 · ff681ae · ff681ae
1 parent 1303c08
commit ff681ae
Showing 1 changed file with 18 additions and 1 deletion.
diff --git a/...t/jtreg/serviceability/jvmti/vthread/SelfSuspendDisablerTest/SelfSuspendDisablerTest.java b/...t/jtreg/serviceability/jvmti/vthread/SelfSuspendDisablerTest/SelfSuspendDisablerTest.java
@@ -66,10 +66,27 @@ private static void sleep(long millis) {
     private static void testJvmtiThreadState(Thread thread, int expectedState) {
         String kindStr = thread.isVirtual()? "virtual " : "platform";
         int state = getThreadState(thread);
+        boolean pass = true;
 
         System.out.printf("Expected %s thread state: %06X got: %06X\n",
                           kindStr, expectedState, state);
-        if ((state & expectedState) != expectedState) {
+        if (expectedState == SUSPENDED) {
+            if ((state & expectedState) != expectedState) {
+                /* Fail if the required bits are not set. */
+                pass = false;
+            }
+	    /* SUSPENDED_OPTIONAL = JVMTI_THREAD_STATE_INTERRUPTED | JVMTI_THREAD_STATE_IN_NATIVE */
+            int SUSPENDED_OPTIONAL = 0x200000 | 0x400000;
+            if ((state & ~(SUSPENDED | SUSPENDED_OPTIONAL)) != 0) {
+                /* Fail if any unexpected bit is set. */
+                pass = false;
+            }
+        } else {
+            if (state != expectedState) {
+                pass = false;
+            }
+        }
+        if (!pass) {
             throw new RuntimeException("Test FAILED: Unexpected thread state");
         }
     }