diff --git a/org.eclipse.jgit.test/tst/org/eclipse/jgit/lib/ObjectLoaderTest.java b/org.eclipse.jgit.test/tst/org/eclipse/jgit/lib/ObjectLoaderTest.java
index 83e61d9ab..055e66ed8 100644
--- a/org.eclipse.jgit.test/tst/org/eclipse/jgit/lib/ObjectLoaderTest.java
+++ b/org.eclipse.jgit.test/tst/org/eclipse/jgit/lib/ObjectLoaderTest.java
@@ -260,6 +260,12 @@ public int read() throws IOException {
 						fail("never should have reached read");
 						return -1;
 					}
+
+					@Override
+					public int read(byte b[], int off, int len) {
+						fail("never should have reached read");
+						return -1;
+					}
 				};
 			}
 		};
diff --git a/org.eclipse.jgit.test/tst/org/eclipse/jgit/util/io/UnionInputStreamTest.java b/org.eclipse.jgit.test/tst/org/eclipse/jgit/util/io/UnionInputStreamTest.java
index b824fae9f..0bfa772be 100644
--- a/org.eclipse.jgit.test/tst/org/eclipse/jgit/util/io/UnionInputStreamTest.java
+++ b/org.eclipse.jgit.test/tst/org/eclipse/jgit/util/io/UnionInputStreamTest.java
@@ -259,6 +259,11 @@ public void testNonBlockingPartialRead() throws Exception {
 			public int read() throws IOException {
 				throw new IOException("Expected");
 			}
+
+			@Override
+			public int read(byte b[], int off, int len) throws IOException {
+				throw new IOException("Expected");
+			}
 		};
 		@SuppressWarnings("resource" /* java 7 */)
 		final UnionInputStream u = new UnionInputStream(