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From bugzi...@apache.org
Subject DO NOT REPLY [Bug 13359] New: - jar task produces ZIP files, jar command produces java programs
Date Mon, 07 Oct 2002 14:35:06 GMT
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http://nagoya.apache.org/bugzilla/show_bug.cgi?id=13359

jar task produces ZIP files, jar command produces java programs

           Summary: jar task produces ZIP files, jar command produces java
                    programs
           Product: Ant
           Version: 1.5.1
          Platform: Sun
        OS/Version: Solaris
            Status: NEW
          Severity: Normal
          Priority: Other
         Component: Core tasks
        AssignedTo: ant-dev@jakarta.apache.org
        ReportedBy: pjw@rentec.com


jar xmf foof A.jar produces a file that starts
(first 16 chars in octal and ascii)
0000000 120 113 003 004 024 000 010 000 010 000 233 134 070 055 000 000
	   P   K 003 004 024  \0  \b  \0  \b  \0 233   \   8   -  \0  \0
while the jar task produces a file CreditStrat.jar,
     <jar jarfile="${file}" >
	<manifest>
	<attribute name="Class-Path" value="try-fiasco.jar "/>
	<attribute name="Main-Class" value="${file}"/>
	</manifest>
	</jar>
produces a file that starts
0000000 120 113 003 004 012 000 000 000 000 000 250 116 107 055 000 000
	   P   K 003 004  \n  \0  \0  \0  \0  \0 250   N   G   -  \0  \0

The system will try to execute the former using a java JVM, but not the latter.
the file command shows this another way:
file *.jar
A.jar:
	java program
CreditStrat.jar:
ZIP archive

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