--- /dev/null	2018-05-14 10:15:02.574213890 -0700
+++ new/test/hotspot/jtreg/vmTestbase/vm/runtime/defmeth/shared/data/AbstractVisitor.java	2018-05-21 10:53:13.765502524 -0700
@@ -0,0 +1,170 @@
+/*
+ * Copyright (c) 2013, 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.
+ *
+ * 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 vm.runtime.defmeth.shared.data;
+
+import vm.runtime.defmeth.shared.data.method.AbstractMethod;
+import vm.runtime.defmeth.shared.data.method.ConcreteMethod;
+import vm.runtime.defmeth.shared.data.method.DefaultMethod;
+import vm.runtime.defmeth.shared.data.method.Method;
+import vm.runtime.defmeth.shared.data.method.body.CallMethod;
+import vm.runtime.defmeth.shared.data.method.body.EmptyBody;
+import vm.runtime.defmeth.shared.data.method.body.ReturnIntBody;
+import vm.runtime.defmeth.shared.data.method.body.ReturnNewInstanceBody;
+import vm.runtime.defmeth.shared.data.method.body.ReturnNullBody;
+import vm.runtime.defmeth.shared.data.method.body.ThrowExBody;
+import vm.runtime.defmeth.shared.data.method.param.DoubleParam;
+import vm.runtime.defmeth.shared.data.method.param.FloatParam;
+import vm.runtime.defmeth.shared.data.method.param.IntParam;
+import vm.runtime.defmeth.shared.data.method.param.LongParam;
+import vm.runtime.defmeth.shared.data.method.param.NewInstanceParam;
+import vm.runtime.defmeth.shared.data.method.param.StringParam;
+import vm.runtime.defmeth.shared.data.method.result.IntResult;
+import vm.runtime.defmeth.shared.data.method.result.ThrowExResult;
+
+/**
+ * {@code AbstactVisitor} provides implementation for all methods from {@code Visitor},
+ * which throws {@code UnsupportedOperationException}. It is useful
+ * for custom visitors, which expect only a subset of events to occur.
+ */
+public class AbstractVisitor implements Visitor {
+    @Override
+    public void visitClass(Clazz clz) {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public void visitConcreteClass(ConcreteClass clz) {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public void visitInterface(Interface intf) {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public void visitMethod(Method m) {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public void visitConcreteMethod(ConcreteMethod m) {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public void visitAbstractMethod(AbstractMethod m) {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public void visitDefaultMethod(DefaultMethod m) {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public void visitTester(Tester t) {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public void visitThrowExBody(ThrowExBody body) {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public void visitReturnIntBody(ReturnIntBody body) {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public void visitReturnNullBody(ReturnNullBody body) {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public void visitEmptyBody(EmptyBody body) {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public void visitCallMethod(CallMethod call) {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public void visitReturnNewInstanceBody(ReturnNewInstanceBody body) {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public void visitResultInt(IntResult res) {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public void visitResultThrowExc(ThrowExResult res) {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public void visitResultIgnore() {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public void visitParamInt(IntParam i) {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public void visitParamLong(LongParam l) {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public void visitParamFloat(FloatParam f) {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public void visitParamDouble(DoubleParam d) {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public void visitParamString(StringParam str) {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public void visitParamNewInstance(NewInstanceParam type) {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public void visitParamNull() {
+        throw new UnsupportedOperationException();
+    }
+}