Add API 31 sources

Test: None
Change-Id: Ie45894f7a232b2a15e2439b2527ca1813f334cc5
diff --git a/java/lang/Enum.annotated.java b/java/lang/Enum.annotated.java
new file mode 100644
index 0000000..b49785e
--- /dev/null
+++ b/java/lang/Enum.annotated.java
@@ -0,0 +1,55 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ * Copyright (c) 2003, 2011, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+
+package java.lang;
+
+
+@SuppressWarnings({"unchecked", "deprecation", "all"})
+public abstract class Enum<E extends java.lang.Enum<E>> implements java.lang.Comparable<E>, java.io.Serializable {
+
+protected Enum(@libcore.util.NonNull java.lang.String name, int ordinal) { throw new RuntimeException("Stub!"); }
+
+@libcore.util.NonNull public final java.lang.String name() { throw new RuntimeException("Stub!"); }
+
+public final int ordinal() { throw new RuntimeException("Stub!"); }
+
+@libcore.util.NonNull public java.lang.String toString() { throw new RuntimeException("Stub!"); }
+
+public final boolean equals(@libcore.util.Nullable java.lang.Object other) { throw new RuntimeException("Stub!"); }
+
+public final int hashCode() { throw new RuntimeException("Stub!"); }
+
+@libcore.util.NonNull protected final java.lang.Object clone() throws java.lang.CloneNotSupportedException { throw new RuntimeException("Stub!"); }
+
+public final int compareTo(@libcore.util.NullFromTypeParam E o) { throw new RuntimeException("Stub!"); }
+
+@libcore.util.NonNull public final java.lang.Class<E> getDeclaringClass() { throw new RuntimeException("Stub!"); }
+
+@libcore.util.NonNull public static <T extends java.lang.Enum<T>> T valueOf(@libcore.util.NonNull java.lang.Class<T> enumType, @libcore.util.NonNull java.lang.String name) { throw new RuntimeException("Stub!"); }
+
+protected final void finalize() { throw new RuntimeException("Stub!"); }
+}