Name: rmT116609 Date: 05/23/2002


FULL PRODUCT VERSION :
java version "1.4.0"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.0-b92)
Java HotSpot(TM) Client VM (build 1.4.0-b92, mixed mode)

Windows NT Version 4.0 service pack 6a
French version


A DESCRIPTION OF THE PROBLEM :
JAR tools with option -i (Generate index information) work
as expected when used alone. However, unexpected behavior
occurs when -i is combined with some other flags:

  -i0 throws a JarException

  -cfi Emmit an error message saying that the 'c' flag
         requires that input files be specified. This
         error message is emmited even if an imput file
         is actually specified (i.e. the -cf option work
         as expected).

  -cfmi No error message, but the index is not generated.


STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
1. Compile the following class:

class Dummy
{
}


2. Create a "dummy.mf" file with the following content:

Implementation-Version: 0



3. Try the following from the command line:

jar -vcfmi cfmi.jar dummy.mf Dummy.class
jar -vcfi cfi.jar Dummy.class
jar -vcfm0 cfmi0.jar dummy.mf Dummy.class
jar -i0 cfmi0.jar


EXPECTED VERSUS ACTUAL BEHAVIOR :
---- CASE 1 -----------------------------

jar -vcfm cfm.jar dummy.mf Dummy.class

    Work as expected. But adding option -i
    has strange behavior:


jar -vcfmi cfmi.jar dummy.mf Dummy.class

    Add the manifest only. Neither the class
    or the index is added. No error message
    is emited.



---- CASE 2 -----------------------------

jar -vcf cf.jar Dummy.class

    Work as expected. But adding option -i
    has strange behavior:

    
jar -vcfi cfi.jar Dummy.class

    The following error message is emited:
    "'c' flag requires that input files be specified!"

    But the input file IS specified...



---- CASE 3 -----------------------------

jar -vcfm cfmi.jar dummy.mf Dummy.class
jar -i cfmi.jar

    Work as expected. But adding option -0
    doesn't work:


jar -vcfm0 cfmi0.jar dummy.mf Dummy.class
jar -i0 cfmi0.jar

    The second "jar" call fails with the
    stack trace below:


ERROR MESSAGES/STACK TRACES THAT OCCUR :
sun.tools.jar.JarException: incorrect length while processing: .\index31601.tmp
        at sun.tools.jar.Main.crc32File(Main.java:665)
        at sun.tools.jar.Main.addIndex(Main.java:505)
        at sun.tools.jar.Main.update(Main.java:435)
        at sun.tools.jar.Main.dumpIndex(Main.java:768)
        at sun.tools.jar.Main.genIndex(Main.java:842)
        at sun.tools.jar.Main.run(Main.java:196)
        at sun.tools.jar.Main.main(Main.java:904)


This bug can be reproduced always.

CUSTOMER WORKAROUND :
use jar -i only.
(Review ID: 146930)
======================================================================


The exception thrown when "jar" is called with "-i0" is due to a bug
that is independent of the other issues addressed in this bug report.
That bug will be addressed by bugid 4823701: JAR tool: fails for "-i0".

###@###.### 2003-02-25