Bug 558759 - Gerrits are failing for JDT core

- avoid warning from javac

Change-Id: Ifef235e7393bacb4b4e8566207e9ba0cbc56c196
diff --git a/org.eclipse.jdt.core.tests.compiler/src/org/eclipse/jdt/core/tests/compiler/regression/ResourceLeakTests.java b/org.eclipse.jdt.core.tests.compiler/src/org/eclipse/jdt/core/tests/compiler/regression/ResourceLeakTests.java
index 31d82d9..bae418e 100644
--- a/org.eclipse.jdt.core.tests.compiler/src/org/eclipse/jdt/core/tests/compiler/regression/ResourceLeakTests.java
+++ b/org.eclipse.jdt.core.tests.compiler/src/org/eclipse/jdt/core/tests/compiler/regression/ResourceLeakTests.java
@@ -6408,7 +6408,9 @@
 	runLeakWarningTest(
 		new String[] {
 			"Sequencer.java",
-			"interface Sequencer extends AutoCloseable {}\n",
+			"interface Sequencer extends AutoCloseable {\n" +
+			"	void close(); // no exception\n" +
+			"}\n",
 			"SequencerControl.java",
 			"public abstract class SequencerControl {\n" +
 			"	public abstract Sequencer getSequencer();\n" +