Install libhamcrest1.2-java-doc by entering the following commands in the terminal:
sudo apt update sudo apt install libhamcrest1.2-java-doc
Description:
library of matchers for building test expressions - documentation
Provides a library of matcher objects (also known as constraints or predicates) allowing 'match' rules to be defined declaratively, to be used in other frameworks. Typical scenarios include testing frameworks, mocking libraries and UI validation rules. . This package contains Javadoc API documentation of Hamcrest.
Homepage: http://code.google.com/p/hamcrest/
Version: 1.2-0ubuntu1
Section: universe/doc