# Package org.apache.groovy.contracts.util

package org.apache.groovy.contracts.util

- Related Packages
  Package
  Description
  org.apache.groovy.contracts
  org.apache.groovy.contracts.ast
  org.apache.groovy.contracts.domain
  org.apache.groovy.contracts.generation
- Classes
  Class
  Description
  AnnotationUtils
  Helper methods for reading/getting `AnnotationNode` instances.
  ExpressionUtils
  Internal utility class for extracting a boolean expression from the given expression or statement.
  FieldValues
  This utility is meant to be used to replace direct calls to private field variables in class invariants.
  LifecycleImplementationLoader<S>
  Finds and loads implementation classes of interface `Lifecycle`.
  Validate
  Internal utility class for in-code assertion checks.