Bug 551286 - [13] Test failures in I Build after Java 13 merge

Change-Id: Idd280e8595d5905dd116587153828670bc931a4b
diff --git a/org.eclipse.jdt.core.tests.compiler/src/org/eclipse/jdt/core/tests/compiler/regression/NullReferenceTest.java b/org.eclipse.jdt.core.tests.compiler/src/org/eclipse/jdt/core/tests/compiler/regression/NullReferenceTest.java
index 50a2135..fa024bc 100644
--- a/org.eclipse.jdt.core.tests.compiler/src/org/eclipse/jdt/core/tests/compiler/regression/NullReferenceTest.java
+++ b/org.eclipse.jdt.core.tests.compiler/src/org/eclipse/jdt/core/tests/compiler/regression/NullReferenceTest.java
@@ -18283,7 +18283,7 @@
 	runner.runNegativeTest();
 }
 public void testBug542707_1() {
-	if (this.complianceLevel < ClassFileConstants.JDK12) return; // switch expression
+	if (this.complianceLevel < ClassFileConstants.JDK13) return; // switch expression
 	Runner runner = new Runner();
 	runner.customOptions = new HashMap<>();
 	runner.customOptions.put(JavaCore.COMPILER_PB_ENABLE_PREVIEW_FEATURES, JavaCore.ENABLED);