8385747: Test gc/g1/TestGCLogMessages.java failed: 'Update Derived Pointers' found in stdout

Reviewed-by: dholmes, tschatzl

src/hotspot/share/prims/whitebox.cpp

@@ -747,6 +747,14 @@ WB_ENTRY(void, WB_NMTArenaMalloc(JNIEnv* env, jobject o, jlong arena, jlong size
   a->Amalloc(size_t(size));
 WB_END
 
+WB_ENTRY(jboolean, WB_isC2Included(JNIEnv* env))
+#ifdef COMPILER2
+  return true;
+#else
+  return false;
+#endif
+WB_END
+
 static jmethodID reflected_method_to_jmid(JavaThread* thread, JNIEnv* env, jobject method) {
   assert(method != nullptr, "method should not be null");
   ThreadToNativeFromVM ttn(thread);
@@ -2843,6 +2851,7 @@ static JNINativeMethod methods[] = {
   {CC"NMTNewArena",         CC"(J)J",                 (void*)&WB_NMTNewArena        },
   {CC"NMTFreeArena",        CC"(J)V",                 (void*)&WB_NMTFreeArena       },
   {CC"NMTArenaMalloc",      CC"(JJ)V",                (void*)&WB_NMTArenaMalloc     },
+  {CC"isC2Included",        CC"()Z",                  (void*)&WB_isC2Included       },
   {CC"deoptimizeFrames",   CC"(Z)I",                  (void*)&WB_DeoptimizeFrames  },
   {CC"isFrameDeoptimized", CC"(I)Z",                  (void*)&WB_IsFrameDeoptimized},
   {CC"deoptimizeAll",      CC"()V",                   (void*)&WB_DeoptimizeAll     },

test/hotspot/jtreg/gc/g1/TestGCLogMessages.java

@@ -86,7 +86,7 @@ public class TestGCLogMessages {
         }
 
         public boolean isAvailable() {
-            return Compiler.isC2Enabled();
+            return Compiler.isC2Included();
         }
     }
 

test/lib/jdk/test/whitebox/WhiteBox.java

@@ -336,6 +336,8 @@ public class WhiteBox {
 
   // Compiler
 
+  public native boolean isC2Included();
+
   public native int     matchesMethod(Executable method, String pattern);
   public native int     matchesInline(Executable method, String pattern);
   public native boolean shouldPrintAssembly(Executable method, int comp_level);

test/lib/jdk/test/whitebox/code/Compiler.java

@@ -34,6 +34,15 @@ public class Compiler {
 
     private static final WhiteBox WB = WhiteBox.getWhiteBox();
 
+    /**
+     * Check if C2 was included in the VM build
+     *
+     * @return true if C2 was included in the VM build.
+     */
+    public static boolean isC2Included() {
+        return WB.isC2Included();
+    }
+
     /**
      * Check if C2 is used as JIT compiler.
      *