--- /dev/null	2018-05-03 07:48:58.155163031 -0700
+++ new/plugins/simple_methods_anc/src/openjdk/jcov/filter/simplemethods/Delegators.java	2018-05-10 08:32:21.804845970 -0700
@@ -0,0 +1,99 @@
+/*
+ * Copyright (c) 2018, 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 openjdk.jcov.filter.simplemethods;
+
+import org.objectweb.asm.tree.AbstractInsnNode;
+import org.objectweb.asm.tree.ClassNode;
+import org.objectweb.asm.tree.InvokeDynamicInsnNode;
+import org.objectweb.asm.tree.MethodInsnNode;
+import org.objectweb.asm.tree.MethodNode;
+
+import java.util.function.BiPredicate;
+
+import static java.util.Arrays.binarySearch;
+import static openjdk.jcov.filter.simplemethods.Utils.isInvokeInstruction;
+import static openjdk.jcov.filter.simplemethods.Utils.isReturnInstruction;
+import static openjdk.jcov.filter.simplemethods.Utils.isSimpleInstruction;
+
+public class Delegators implements BiPredicate<ClassNode, MethodNode> {
+
+    private final boolean sameNameDelegationOnly;
+
+    public Delegators(boolean sameNameDelegationOnly) {
+        this.sameNameDelegationOnly = sameNameDelegationOnly;
+    }
+
+    public Delegators() {
+        this(false);
+    }
+
+    /**
+     * Identifies simple delegation. A simple delegator is a method obtaining any number of values with a "simple" code
+     * and then calling a method with the obtained values.
+     * @see Utils#isSimpleInstruction(int)
+     */
+    @Override
+    public boolean test(ClassNode clazz, MethodNode m) {
+        int index = 0;
+        int opCode = -1;
+        //skip all instructions allowed to get values
+        for(; index < m.instructions.size(); index++) {
+            opCode = m.instructions.get(index).getOpcode();
+            if(opCode >=0) {
+                if (!isSimpleInstruction(opCode)) {
+                    break;
+                }
+            }
+        }
+        //that should be an invocation instruction
+        if(!isInvokeInstruction(opCode)) {
+            return false;
+        }
+        if(sameNameDelegationOnly) {
+            //check name
+            AbstractInsnNode node = m.instructions.get(index);
+            String name;
+            if (node instanceof MethodInsnNode) {
+                name = ((MethodInsnNode) node).name;
+            } else if (node instanceof InvokeDynamicInsnNode) {
+                name = ((InvokeDynamicInsnNode) node).name;
+            } else {
+                throw new IllegalStateException("Unknown node type: " + node.getClass().getName());
+            }
+            if(!m.name.equals(name)) {
+                return false;
+            }
+        }
+        //scroll to next instruction
+        for(index++; index < m.instructions.size(); index++) {
+            opCode = m.instructions.get(index).getOpcode();
+            if(opCode >=0) {
+                break;
+            }
+        }
+        //that should be a return instruction
+        return isReturnInstruction(opCode);
+    }
+}