--- /dev/null	2019-02-07 20:54:51.336000000 +0300
+++ new/test/lib/jdk/test/lib/hprof/util/Misc.java	2019-02-08 18:34:11.002855526 +0300
@@ -0,0 +1,112 @@
+/*
+ * 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.util;
+import java.util.*;
+
+/**
+ * Miscellaneous functions I couldn't think of a good place to put.
+ *
+ * @author      Bill Foote
+ */
+
+
+public class Misc {
+
+    private static char[] digits = { '0', '1', '2', '3', '4', '5', '6', '7',
+                                     '8', '9', 'a', 'b', 'c', 'd', 'e', 'f' };
+
+    public final static String toHex(int addr) {
+        char[] buf = new char[8];
+        int i = 0;
+        for (int s = 28; s >= 0; s -= 4) {
+            buf[i++] = digits[(addr >> s) & 0xf];
+        }
+        return "0x" + new String(buf);
+    }
+
+    public final static String toHex(long addr) {
+        return "0x" + Long.toHexString(addr);
+    }
+
+    public final static long parseHex(String value) {
+        long result = 0;
+        if (value.length() < 2 || value.charAt(0) != '0' ||
+            value.charAt(1) != 'x') {
+            return -1L;
+        }
+        for(int i = 2; i < value.length(); i++) {
+            result *= 16;
+            char ch = value.charAt(i);
+            if (ch >= '0' && ch <= '9') {
+                result += (ch - '0');
+            } else if (ch >= 'a' && ch <= 'f') {
+                result += (ch - 'a') + 10;
+            } else if (ch >= 'A' && ch <= 'F') {
+                result += (ch - 'A') + 10;
+            } else {
+                throw new NumberFormatException("" + ch
+                                        + " is not a valid hex digit");
+            }
+        }
+        return result;
+    }
+
+    public static String encodeHtml(String str) {
+        final int len = str.length();
+        StringBuilder sb = new StringBuilder();
+        for (int i = 0; i < len; i++) {
+            char ch = str.charAt(i);
+            if (ch == '<') {
+                sb.append("&lt;");
+            } else if (ch == '>') {
+                sb.append("&gt;");
+            } else if (ch == '"') {
+                sb.append("&quot;");
+            } else if (ch == '\'') {
+                sb.append("&#039;");
+            } else if (ch == '&') {
+                sb.append("&amp;");
+            } else if (ch < ' ') {
+                sb.append("&#").append((int)ch).append(';');
+            } else {
+                int c = (ch & 0xFFFF);
+                if (c > 127) {
+                    sb.append("&#").append(c).append(';');
+                } else {
+                    sb.append(ch);
+                }
+            }
+        }
+        return sb.toString();
+    }
+}