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Is there any way i can read the contents of a jar file. like i want to read the manifest file in order to find the creator of the jar file and version. Is there any way to achieve the same.
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NetBeans IDE This was easily brought up in NetBeans by simply using File --> Open File and selecting jdiff. jar to have it displayed as shown in the next screen snapshot.
You use the m command-line option to add custom information to the manifest during creation of a JAR file. This section describes the m option. The Jar tool automatically puts a default manifest with the pathname META-INF/MANIFEST. MF into any JAR file you create.
The manifest is a special file that can contain information about the files packaged in a JAR file. By tailoring this "meta" information that the manifest contains, you enable the JAR file to serve a variety of purposes.
Next code should help:
JarInputStream jarStream = new JarInputStream(stream); Manifest mf = jarStream.getManifest(); Exception handling is left for you :)
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