RFR : 7148584 Jar tools fails to generate manifest correctly when boundary condition hit

Seán Coffey sean.coffey at oracle.com
Mon Mar 12 09:28:07 UTC 2012


I did (briefly) look into using the java.util.jar API but wasn't seeing 
the bug being triggered. Decided to use the jar process command as an 

The testcase was a port from JDK 6 and didn't contain JDK 7+ features. 
I've converted it now though. Hope it's cleaner.


On 09/03/2012 16:18, Alan Bateman wrote:
> On 09/03/2012 15:52, Seán Coffey wrote:
>> Issue seen when the inner Manifest.FastInputStream.peek() method is 
>> called just as we hit EOF of main buffer being parsed (the manifest 
>> input file)
>> Simple fix involves getting peek() to return -1 if a fill() request 
>> fails to read anything.
>> webrev : http://cr.openjdk.java.net/~coffeys/webrev.7148584.jdk8/
>> Bug report : http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=7148584
>> regards,
>> Sean.
> The change looks okay to me.
> On the test case then I assume it could have been done with the 
> java.util.jar APIs rather than calling into the jar command. Also it 
> might be cleaner to use try-with-resources.
> -Alan.

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