--- /dev/null	2020-01-02 04:43:18.583999853 +0000
+++ new/test/lib/jdk/test/lib/hprof/model/StackFrame.java	2020-01-30 06:39:42.790270983 +0000
@@ -0,0 +1,101 @@
+/*
+ * Copyright (c) 1997, 2016, 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.
+ */
+
+
+/*
+ * The Original Code is HAT. The Initial Developer of the
+ * Original Code is Bill Foote, with contributions from others
+ * at JavaSoft/Sun.
+ */
+
+package jdk.test.lib.hprof.model;
+
+/**
+ *
+ * @author      Bill Foote
+ */
+
+
+/**
+ * Represents a stack frame.
+ */
+
+public class StackFrame {
+
+    //
+    // Values for the lineNumber data member.  These are the same
+    // as the values used in the JDK 1.2 heap dump file.
+    //
+    public final static int LINE_NUMBER_UNKNOWN = -1;
+    public final static int LINE_NUMBER_COMPILED = -2;
+    public final static int LINE_NUMBER_NATIVE = -3;
+
+    private String methodName;
+    private String methodSignature;
+    private String className;
+    private String sourceFileName;
+    private int lineNumber;
+
+    public StackFrame(String methodName, String methodSignature,
+                      String className, String sourceFileName, int lineNumber) {
+        this.methodName = methodName;
+        this.methodSignature = methodSignature;
+        this.className = className;
+        this.sourceFileName = sourceFileName;
+        this.lineNumber = lineNumber;
+    }
+
+    public void resolve(Snapshot snapshot) {
+    }
+
+    public String getMethodName() {
+        return methodName;
+    }
+
+    public String getMethodSignature() {
+        return methodSignature;
+    }
+
+    public String getClassName() {
+        return className;
+    }
+
+    public String getSourceFileName() {
+        return sourceFileName;
+    }
+
+    public String getLineNumber() {
+        switch(lineNumber) {
+            case LINE_NUMBER_UNKNOWN:
+                return "(unknown)";
+            case LINE_NUMBER_COMPILED:
+                return "(compiled method)";
+            case LINE_NUMBER_NATIVE:
+                return "(native method)";
+            default:
+                return Integer.toString(lineNumber, 10);
+        }
+    }
+}