JarDiff - create a diff of the public API of two JAR files
Sat, 2010.11.20 - 01:09 — müzso
I've written a simple shell script to generate "signatures" of all the
I've tested the script on Ubuntu and Mac OS X, but it should work well on most Unix/Linux platforms. I've found it interesting that
Running the script is pretty trivial:
The third parameter is optional. If not specified, the diff will be saved as
*.class files in two JAR files and compare these with diff. The output is pretty well usable to spot the (sometimes accidental) differences between two versions of the same library.I've tested the script on Ubuntu and Mac OS X, but it should work well on most Unix/Linux platforms. I've found it interesting that
javap in OpenJDK was significantly faster than the javap in the Sun (now Oracle) JRE. Running the script is pretty trivial:
jardiff.sh file1.jar file2.jar [output.diff]The third parameter is optional. If not specified, the diff will be saved as
jardiff_yyyy-mm-dd_hh-mi-ss.diff and the various date and time related fields are replaced with their actual values.| Attachment | Size |
|---|---|
| jardiff-1.0.0.sh | 4.91 KB |
| jardiff-1.1.0.sh | 6.06 KB |
| jardiff-1.2.0.sh | 7 KB |
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Creative Commons Attribution-NonCommercial-ShareAlike 4.0 License. My posts reflect my personal opinion and shall not be associated with any of my employers.
Comments
JarDiff v1.1.0
javap's output. By default this command is asort. This helps in cases where the order of class properties and functions changes between different versions of the containing JAR. This can happen if the class is automatically generated via some tool (eg. HyperJAXB). The order of a generated class's properties and functions might change regardless whether there's any "real" change to them (ie. in the property's/function's definition).JarDiff v1.2.0