[Bug classpath/24596] Return value of getResourceAsStream().available() in jar file

[freebeans at xqb dot biglobe dot ne dot jp]

------- Comment #4 from freebeans at xqb dot biglobe dot ne dot jp  2005-11-03 
06:11 -------
I compared operation with Sun JDK1.5 and GNU Classpath about InputStream which
ZipFile.getInputStream (ZipEntry) returns.

In the case of the compressed ZIP file 
Sun JDK1.5: Return the value which subtracted the number of read bytes from
original file size. 
GNU Classpath 0.18: When EOF is reached, return 0. 1 is returned when other. 

In the case of a non-compressed ZIP file 
Sun JDK1.5: Return the value which subtracted the number of read bytes from
file size. 
GNU Classpath 0.18: Return the same value as Sun JDK1.5. 

This is not the bug of GNU Classpath. 
A problem is in the application depending on InputStream.available(). 
However, since many of such applications exist, I consider that it is better to
return the same value as Sun. 
The sauce depending on available() is introduced also to the following reports
of JavaWorld as a sample. 

To jar or not to jar?  
Get the lowdown on using Java Archive (jar) files -- including pros and cons
http://www.javaworld.com/javaworld/jw-07-1998/jw-07-jar_p.html 


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24596