Building

Starting with 2.0.0, building the plugin requires a JDK11+ (JDK17 or a newer LTS version is strongly preferred) installed. It will build using the Java 11 release profile to ensure that the resulting code will execute on any JDK11 or better.

The source code is “batteries included” and contains a Makefile to build the code:

Install snapshot locally:
% make install

Run unit and integration tests:
% make tests

Deploy snapshot to OSS (requires author privileges):
% make deploy 

Release new version (requires author privileges):
% make release

The last two actions require admin access to the org.basepom repository on oss.sonatype.org.

Developing code and sending pull requests

• Use spaces to indent, not hard tab characters. The code base uses four space indents, please respect this.
• Use the US-ASCII charset. If unicode characters are necessary (e.g. for a test case), please use the \uxxxx escape syntax.
• Do not reformat an existing file or imports. If an existing file is changed, please format the code similar to the rest of the file.

Integration test suite

The duplicate finder plugin contains a comprehensive integration test suite to ensure its behavior and catch possible regressions. Any significant code change, feature addition or fix must come with a test that fails before the change is applied and passes afterwards.