Add some JDK classes needed to support DukeScript

teavm-classlib/src/main/java/org/teavm/classlib/java/lang/ref/TReferenceQueue.java

@@ -0,0 +1,26 @@
+/*
+ *  Copyright 2015 Alexey Andreev.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *       http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+package org.teavm.classlib.java.lang.ref;
+
+/**
+ *
+ * @author Alexey Andreev
+ */
+public class TReferenceQueue<T> {
+    public TReference<T> poll() {
+        return null;
+    }
+}

teavm-classlib/src/main/java/org/teavm/classlib/java/lang/ref/TWeakReference.java

@@ -26,6 +26,10 @@ public class TWeakReference<T> extends TReference<T> {
         this.value = value;
     }
 
+    public TWeakReference(T value, @SuppressWarnings("unused") TReferenceQueue<T> queue) {
+        this.value = value;
+    }
+
     @Override
     public T get() {
         return value;