DD/Java (DDJ for short) is an experimental implementation of the method reported in the following paper.
Masatomo Hashimoto, Akira Mori, Tomonori Izumida. "Automated Patch Extraction via Syntax- and Semantics-Aware Delta Debugging on Source Code Changes", In Proc. the 26th ACM Joint European Software Engineering Conference and Symposium on the Foundations of Software Engineering (ESEC/FSE 2018), 2018, pp. 598-609, DOI:10.1145/3236024.3236047 (paper available also from here).
DDJ relies on Diff/AST for differencing Java programs.
You can instantly try DDJ by means of Docker and a ready-made container image.
$ docker pull codecontinuum/ddj
The following command line executes DDJ within a container to find failure inducing changes between 1183g (good version) and 1183b (bad version) of logback_ddj (target project). The --include options specify the relative paths of the source directories. The results will be placed at logback_ddj/__CCA__YYYYMMDDHHMMSS/dd/patches/.
$ tar Jxf regression_examples/logback_ddj.txz
$ ./cca.py ddjava --include logback-access/src/main/java --include logback-classic/src/main/java --include logback-core/src/main/java logback_ddj 1183g 1183b
Note that DDJ assumes that scripts for building (build.sh by default) and testing (test.sh by default) are placed at the good version logback_ddj/1183g.
If you want to install some packages or other files required to implement build and/or test scripts, put install_dependencies.sh at the target project directory (e.g. regression_examples/hsqldb_ddj).
You can also try a language agnostic DD/Plain (DDP for short) that relies on diff command for differencing programs. The results will be placed at logback_ddj/__CCA__YYYYMMDDHHMMSS/dd/delta/.
$ ./cca.py ddplain --include logback-access/src/main/java --include logback-classic/src/main/java --include logback-core/src/main/java --lang java logback_ddj 1183g 1183b
Note that --lang option filters source files by their extensions. That is, --lang java means that the tool scan only *.java. You can append --lang options to add other source files of interest.
The following command line creates a docker image named ddjx. In the image, the framework is installed at /opt/cca.
$ docker build -t ddjx .
Apache License, Version 2.0