Testsuite: JCK 6.0 b08
Test: api/java_util/jar/Pack200/distributed/index.html#PackDistributed
Failed: mustang b53, b54 SunOS stt-26 5.9 Generic_117172-07 i86pc i386 i86pc;
                         ( also Windows XP Home, SLES, ...)
Passed: mustang b52 SunOS stt-26 5.9 Generic_117172-07 i86pc i386 i86pc;
Attaches: sample4.jar ( just jar file ), Test1Pack.java ( modified testcase from JCK for
 bug reproducing )
Description:

invocation of method:
    public void unpack004() {
        try {
            String testDirURL = "file:///set/stt/jck_workspace/manual_run/dg159268_runs/failed_tests/b53/Pack200/";
            String fname = "sample4.jar";

            ByteArrayOutputStream baos = new ByteArrayOutputStream();
            Pack200.Packer p200 = Pack200.newPacker();
            java.util.SortedMap p = p200.properties();
            p.put(p200.EFFORT, new Integer(0).toString());

            System.out.println("PACK ...");
            URL file = new URL(new URL(testDirURL), fname);
            URLConnection uc = file.openConnection();
            JarInputStream jis = new JarInputStream(uc.getInputStream());
            p200.pack(jis, baos);

            System.out.println("UNPACK ...");
            byte [] packed_array = baos.toByteArray();
            System.out.println("Length=" + packed_array.length);
            ByteArrayInputStream bis =
                new ByteArrayInputStream(packed_array);
            System.out.println("avail=" + bis.available());

            ByteArrayOutputStream baos1 = new ByteArrayOutputStream();
            JarOutputStream jos = new JarOutputStream(baos);

            (Pack200.newUnpacker()).unpack(bis, jos);
            jos.flush();
            jos.close();

        } catch (IOException ioe) {
            ioe.printStackTrace(System.out);
            System.out.println("Unexpected " + ioe);
            return ;
        }
        System.out.println("Passed OK");
        return;
   } // End of unpack004()

cause error:
--------------------
PACK ...
UNPACK ...
Length=11207
avail=11207
java.util.zip.ZipException: invalid entry size (expected 1758920712 but got 943 bytes)
        at java.util.zip.ZipInputStream.readEnd(Unknown Source)
        at java.util.zip.ZipInputStream.read(Unknown Source)
        at java.util.jar.JarInputStream.read(Unknown Source)
        at java.io.FilterInputStream.read(Unknown Source)
        at com.sun.java.util.jar.pack.Utils.copyJarFile(Unknown Source)
        at com.sun.java.util.jar.pack.UnpackerImpl.unpack(Unknown Source)
        at Test1Pack200.unpack004(Test1Pack200.java:61)
        at Test1Pack200.main(Test1Pack200.java:77)
Unexpected java.util.zip.ZipException: invalid entry size (expected 1758920712 but got 943 bytes)
--------------------------

For JDK 6.0 b52 output is:
--------------------------
PACK ...
UNPACK ...
Length=11287
avail=11287
Passed OK
--------------------------

This test passed when we working with jarFile ( not InputStream from URLConnection ) as
// *** JarFile jarFile = new JarFile("./sample4.jar");
// *** p200.pack(jarFile, baos);
// *** jarFile.close();
And there is no error if we using not 0 for EFFORT property:
// p.put(p200.EFFORT, new Integer(5).toString());