diff -r a48961ff3e6b -r d382dacfd73f rt/vmtest/src/test/java/org/apidesign/bck2brwsr/vmtest/impl/ZipEntryTest.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/rt/vmtest/src/test/java/org/apidesign/bck2brwsr/vmtest/impl/ZipEntryTest.java	Tue Feb 26 16:54:16 2013 +0100
@@ -0,0 +1,67 @@
+/**
+ * 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.bck2brwsr.vmtest.impl;
+
+import java.io.ByteArrayInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import org.apidesign.bck2brwsr.emul.zip.FastJar;
+import org.testng.annotations.Test;
+import static org.testng.Assert.*;
+
+/**
+ *
+ * @author Jaroslav Tulach <jtulach@netbeans.org>
+ */
+@GenerateZip(name = "five.zip", contents = {
+    "1.txt", "one",
+    "2.txt", "duo",
+    "3.txt", "three",
+    "4.txt", "four",
+    "5.txt", "five"
+})
+public class ZipEntryTest {
+    @Test
+    public void readEntriesEffectively() throws IOException {
+        InputStream is = ZipEntryTest.class.getResourceAsStream("five.zip");
+        byte[] arr = new byte[is.available()];
+        int len = is.read(arr);
+        assertEquals(len, arr.length, "Read fully");
+        
+        FastJar fj = new FastJar(arr);
+        FastJar.Entry[] entrs = fj.list();
+        
+        assertEquals(5, entrs.length, "Five entries");
+        
+        for (int i = 1; i <= 5; i++) {
+            FastJar.Entry en = entrs[i - 1];
+            assertEquals(en.name, i + ".txt");
+//            assertEquals(cis.cnt, 0, "Content of the file should be skipped, not read");
+        }
+        
+        assertContent("three", fj.getInputStream(entrs[3 - 1]), "read OK");
+        assertContent("five", fj.getInputStream(entrs[5 - 1]), "read OK");
+    }
+
+    private static void assertContent(String exp, InputStream is, String msg) throws IOException {
+        byte[] arr = new byte[512];
+        int len = is.read(arr);
+        String s = new String(arr, 0, len);
+        assertEquals(exp, s, msg);
+    }
+}