--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.nodes/src/org/graalvm/compiler/nodes/spi/DelegatingReplacements.java	Thu Nov 15 09:04:07 2018 -0800
@@ -0,0 +1,108 @@
+/*
+ * 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.
+ *
+ * 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 org.graalvm.compiler.nodes.spi;
+
+import org.graalvm.compiler.api.replacements.SnippetTemplateCache;
+import org.graalvm.compiler.bytecode.Bytecode;
+import org.graalvm.compiler.bytecode.BytecodeProvider;
+import org.graalvm.compiler.core.common.CompilationIdentifier;
+import org.graalvm.compiler.debug.DebugContext;
+import org.graalvm.compiler.graph.NodeSourcePosition;
+import org.graalvm.compiler.nodes.StructuredGraph;
+import org.graalvm.compiler.nodes.graphbuilderconf.GraphBuilderConfiguration;
+import org.graalvm.compiler.options.OptionValues;
+
+import jdk.vm.ci.meta.ResolvedJavaMethod;
+
+/**
+ * A convenience class when want to subclass and override just a portion of the Replacements API.
+ */
+public class DelegatingReplacements implements Replacements {
+    protected final Replacements delegate;
+
+    public DelegatingReplacements(Replacements delegate) {
+        this.delegate = delegate;
+    }
+
+    @Override
+    public OptionValues getOptions() {
+        return delegate.getOptions();
+    }
+
+    @Override
+    public GraphBuilderConfiguration.Plugins getGraphBuilderPlugins() {
+        return delegate.getGraphBuilderPlugins();
+    }
+
+    @Override
+    public StructuredGraph getSnippet(ResolvedJavaMethod method, Object[] args, boolean trackNodeSourcePosition, NodeSourcePosition replaceePosition) {
+        return delegate.getSnippet(method, args, trackNodeSourcePosition, replaceePosition);
+    }
+
+    @Override
+    public StructuredGraph getSnippet(ResolvedJavaMethod method, ResolvedJavaMethod recursiveEntry, Object[] args, boolean trackNodeSourcePosition, NodeSourcePosition replaceePosition) {
+        return delegate.getSnippet(method, recursiveEntry, args, trackNodeSourcePosition, replaceePosition);
+    }
+
+    @Override
+    public void registerSnippet(ResolvedJavaMethod method, boolean trackNodeSourcePosition) {
+        delegate.registerSnippet(method, trackNodeSourcePosition);
+    }
+
+    @Override
+    public StructuredGraph getSubstitution(ResolvedJavaMethod method, int invokeBci, boolean trackNodeSourcePosition, NodeSourcePosition replaceePosition) {
+        return delegate.getSubstitution(method, invokeBci, trackNodeSourcePosition, replaceePosition);
+    }
+
+    @Override
+    public Bytecode getSubstitutionBytecode(ResolvedJavaMethod method) {
+        return delegate.getSubstitutionBytecode(method);
+    }
+
+    @Override
+    public StructuredGraph getIntrinsicGraph(ResolvedJavaMethod method, CompilationIdentifier compilationId, DebugContext debug) {
+        return delegate.getIntrinsicGraph(method, compilationId, debug);
+    }
+
+    @Override
+    public boolean hasSubstitution(ResolvedJavaMethod method, int invokeBci) {
+        return delegate.hasSubstitution(method, invokeBci);
+    }
+
+    @Override
+    public BytecodeProvider getDefaultReplacementBytecodeProvider() {
+        return delegate.getDefaultReplacementBytecodeProvider();
+    }
+
+    @Override
+    public void registerSnippetTemplateCache(SnippetTemplateCache snippetTemplates) {
+        delegate.registerSnippetTemplateCache(snippetTemplates);
+    }
+
+    @Override
+    public <T extends SnippetTemplateCache> T getSnippetTemplateCache(Class<T> templatesClass) {
+        return delegate.getSnippetTemplateCache(templatesClass);
+    }
+}