Get min/max (major) version numbers from compiled class files in a jars.
For each jar given as argument print
file.jar <min> <max>
where min is the minimum number version number of any class file in the jar. For jars without class files, no output is printed.
Example
$ jarversion file1.jar file2.jar
file1.jar 50 50
file2.jar 51 51
Major Number to Java version
- 49: Java 1.5
- 50: Java 1.6
- 51: Java 1.7