diff --git a/org.eclipse.jdt.ls.tests/src/org/eclipse/jdt/ls/core/internal/handlers/CompletionHandlerTest.java b/org.eclipse.jdt.ls.tests/src/org/eclipse/jdt/ls/core/internal/handlers/CompletionHandlerTest.java
index a28eb692cf..4756845883 100644
--- a/org.eclipse.jdt.ls.tests/src/org/eclipse/jdt/ls/core/internal/handlers/CompletionHandlerTest.java
+++ b/org.eclipse.jdt.ls.tests/src/org/eclipse/jdt/ls/core/internal/handlers/CompletionHandlerTest.java
@@ -3461,7 +3461,12 @@ public void testCompletion_Lambda() throws Exception {
 		assertNotNull(lambda);
 		assertTrue(lambda.getTextEdit().getLeft().getNewText().matches("\\$\\{1:\\w+\\} -> \\$\\{0\\}"));
 
-		assertEquals("(Object arg0) ->", lambda.getLabel());
+		try {
+			assertEquals("(Object t) ->", lambda.getLabel());
+		} catch (ComparisonFailure e) {
+			// In case the JDK has no sources
+			assertEquals("(Object arg0) ->", lambda.getLabel());
+		}
 		assertNull(lambda.getLabelDetails().getDetail());
 		assertEquals(lambda.getLabelDetails().getDescription(), "void");
 	}