Issue:
  When I generate Manifest Text for tag library jar.
  Double bytes characters are generated incorrectly
  in Manifest Text window.

Environment:
  - All Builds
      I reproduced this in S1S nevada build (RC5,
030521)
      and NetBeans Dev build (2003 0522 0100)
 -  All Platforms.
      I reproduced this in sol8, sol9 and win2000.
  - Probably all locales which handled double
bytes characters.
      I reproduced this in ja locale and zh_CN locale.

To Reproduce:
  1. Create new tag library.
  2. Add tag.
  3. Generate tag handler and compile it.
  4. Ggenerate tag library jar and compile it.  
  5. To reproduce tag library jar's properties window.
  6. Click [...] of right side of [Manifest].
  7. Click [generate].
       Double bytes characters in generated
"Manifest Text"
       are appeared incorrectly.