Matteo Bertozzi created HADOOP-8509:
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Summary: JarFinder duplicate entry: META-INF/MANIFEST.MF exception
Key: HADOOP-8509
URL: https://issues.apache.org/jira/browse/HADOOP-8509
Project: Hadoop Common
Issue Type: Bug
Components: util
Affects Versions: 0.23.1
Reporter: Matteo Bertozzi
Priority: Minor
Calling JarFinder.getJar() throws an exception if user has a
"META-INF/MANIFEST.MF" in the same directory of the .class specified.
Jarfinder.getJar() call createJar() that always create a new Manifest and then
add all the files contained in the .class directory.
To reproduce the problem in a simple way you can create a SimpleClass.java in
the same directory create a META-INF/MANIFEST.MF and then call
JarFinder.getJar(SimpleClass.class)
{code}
>> Caused by: java.util.zip.ZipException: duplicate entry: META-INF/MANIFEST.MF
>> at java.util.zip.ZipOutputStream.putNextEntry(ZipOutputStream.java:175)
>> at java.util.jar.JarOutputStream.putNextEntry(JarOutputStream.java:92)
>> at org.apache.hadoop.util.JarFinder.zipDir(JarFinder.java:66)
>> at org.apache.hadoop.util.JarFinder.zipDir(JarFinder.java:62)
>> at org.apache.hadoop.util.JarFinder.zipDir(JarFinder.java:44)
>> at org.apache.hadoop.util.JarFinder.createJar(JarFinder.java:93)
>> at org.apache.hadoop.util.JarFinder.getJar(JarFinder.java:134)
{code}
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