JAR File Index Specification
Q
What is the JAR file index specification? What tools can I use to generate the index file?
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A
The index file of a JAR file contains directory information as to which classes and resources reside in the JAR file. The index file is stored as META-INF/INDEX.LIST in the JAR file.
The index file specification is given below:
index file : version-info blankline section*
version-info : JarIndex-Version: version-number
version-number : digit+{.digit+}*
section : body blankline
body : header name*
header : char+.jar newline
name : char+ newline
char : any valid Unicode character except NULL, CR andLF
blankline: newline newline
newline : CR LF | LF | CR (not followed by LF)
digit: {0-9}
Here is a sample of a JAR index file, INDEX.LIST:
JarIndex-Version: 1.0 activation.jar META-INF javax javax/activation com com/sun com/sun/activation com/sun/activation/registries com/sun/activation/viewers
2016-04-12, ∼3161🔥, 0💬
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