This class looks really complex.

* Algorithms are complex (Max cyclomatic complexity of class methods is 12)

Maybe you should delegate some code to other objects or split complex method.

This component contains in theory 0.42 bugs.

* Calculation is based on number of operators, operands, cyclomatic complexity
* See more details at https://en.wikipedia.org/wiki/Halstead_complexity_measures
* testsuites has dependency to this class.

Maybe you should check your unit tests for this class.

Packages should be either abstract and stable or concrete and instable.

This package is instable and abstract.