Name: skT45625 Date: 04/27/2000


java version "1.2.2"
Classic VM (build JDK-1.2.2-004, native threads, symcjit)


The jar tool on windows platform (verified on Win98 and Win2000)
would skip the last line of manifest. Example: If the manifest
has exactly the two following lines:

Name: test/Test.class
Java-bean: True

then the following command
    jar cfm test.jar manifest.txt test/*.class
will produce a jar file that can't be used as a Java Bean.
If you open the jar and extract MANIFEST.MF, you will see that
the last line in the original manifest file is missing.

Additional Information provided upon request;
---------------------------------
readme.txt:
1. Save all files in a folder "manifestbug", and cd into the
       Hello.java
       manifest1.txt
       manifest2.txt
       run.bat
       readme.txt

2. The only difference between "manifest1.txt" and "manifest2.txt" is the
    extra blank line in "manifest2.txt". Double-click both files in Windows
    Explorer should launch the files in a note pads. Move cursor to the end
    of the last line to verify the difference.

3. Run the batch file at the command line as follows:
       run 1
    This will create "manifestbug.jar" using "manifest1.txt" at the parent directory.
    
4. Start BDK1.1 and load the new jar, you will see the following error:
      Jar file C:\BDK1.1\jars\manifestbug.jar didn't have any beans!
      Each jar file needs to contain a manifest file describing which entries are
      beans. You can should provide a suitable manifest when you create the jar.

5. Now repeat step 3 with the command
       run 2
    This will create "manifestbug.jar" using "manifest2.txt" at the parent directory.

6. Start BDK1.1 and load the new jar, it will work!

=========
Use jar or winzip to extract the MANIFEST.INF inside "manifestbug.jar", you will
see why the first jar can't be used as a Java bean.

Hello.java:
---------
package manifestbug;
import java.awt.*;

public class Hello extends Canvas {
  public Hello() {
    setSize(60,30);
  }

  public void paint(Graphics g){
    g.drawString( "Hello", 10, 20 );
  }
}

manifest1.txt:
----------
Name: manifestbug/Hello.class
Java-Bean: True


manifest2.txt:
-----------
Name: manifestbug/Hello.class
Java-Bean: True

run.bat:
-----
@echo Creating manifestbug.jar with manifest%1.txt
del *.class
cd ..
javac manifestbug\Hello.java
jar cfm manifestbug.jar manifestbug\manifest%1.txt manifestbug\*.class
cd manifestbug

(Review ID: 103379)
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