diff -r ef50c4f07e4f -r d382dacfd73f rt/vm/src/test/java/org/apidesign/vm4brwsr/StringSample.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/rt/vm/src/test/java/org/apidesign/vm4brwsr/StringSample.java	Tue Feb 26 16:54:16 2013 +0100
@@ -0,0 +1,132 @@
+/**
+ * Back 2 Browser Bytecode Translator
+ * Copyright (C) 2012 Jaroslav Tulach <jaroslav.tulach@apidesign.org>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 2 of the License.
+ *
+ * This program 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 for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. Look for COPYING file in the top folder.
+ * If not, see http://opensource.org/licenses/GPL-2.0.
+ */
+package org.apidesign.vm4brwsr;
+
+import java.io.UnsupportedEncodingException;
+
+/**
+ *
+ * @author Jaroslav Tulach <jtulach@netbeans.org>
+ */
+public class StringSample {
+    public static final String HELLO = "Hello World!";
+    private static int counter;
+    
+    private final int cnt;
+    public StringSample() {
+        cnt = ++counter;
+    }
+    
+    
+    public static char sayHello(int indx) {
+        return HELLO.charAt(indx);
+    }
+    
+    public static boolean equalToHello(int from, int to) {
+        return "Hello".equals(HELLO.substring(from, to));
+    }
+    
+    public static String fromChars(char a, char b, char c) {
+        char[] arr = { a, b, c };
+        return new String(arr).toString();
+    }
+    
+    public static String charsFromNumbers() {
+        return chars((char)65, (char)66, (char)67);
+    }
+
+    public static String charsFromChars() {
+        return chars('A', 'B', 'C');
+    }
+
+    public static String chars(char a, char b, char c) {
+        return ("" + a + b +c).toString();
+    }
+    
+    public static String replace(String s, char a, char b) {
+        return s.replace(a, b);
+    }
+    
+    public static int hashCode(String h) {
+        return h.hashCode();
+    }
+    
+    public static boolean isStringInstance() {
+        return chars('a', (char)30, 'b') instanceof String;
+    }
+    
+    public static String getBytes(String s) throws UnsupportedEncodingException {
+        byte[] arr = s.getBytes("UTF-8");
+        StringBuilder sb = new StringBuilder();
+        for (int i = 0; i < arr.length; i++) {
+            sb.append(arr[i]).append(" ");
+        }
+        return sb.toString().toString();
+    }
+    
+    public static String insertBuffer() {
+        StringBuilder sb = new StringBuilder();
+        sb.append("Jardo!");
+        sb.insert(0, "Ahoj ");
+        sb.delete(4, 8);
+        return sb.toString().toString();
+    }
+    
+    public static int countAB(String txt) {
+        int cnt = 0;
+        for (int i = 0; i < txt.length(); i++) {
+            switch (txt.charAt(i)) {
+                case 'A': cnt++; break;
+                case 'B': cnt += 2; break;
+            }
+        }
+        return cnt;
+    }
+
+    public static int stringSwitch(String txt) {
+        switch (txt) {
+            case "jedna": return 1;
+            case "dve": return 2;
+            case "tri": return 3;
+            case "ctyri": return 4;
+        }
+        return -1;
+    }
+    
+    public static String toStringTest(int howMuch) {
+        counter = 0;
+        StringSample ss = null;
+        for (int i = 0; i < howMuch; i++) {
+            ss = new StringSample();
+        }
+        return ss.toString().toString();
+    }
+    
+    public static String concatStrings() {
+        return (toStringTest(1) + "\\\n\r\t").toString();
+    }
+    
+    public static int compare(String a, String b) {
+        return a.compareTo(b);
+    }
+
+    @Override
+    public String toString() {
+        return HELLO + cnt;
+    }
+}