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Reports parameters of methods and constructors that are not referenced them in the method body. Parameters whose name starts with `ignored` or `unused` are filtered out. Removing unused formal parameters from public methods could cause a ripple effect through the code base. Hence, by default, this rule only considers private methods. To include non-private methods, set the `checkAll` property to `true`. UnusedFormalParameter (Priority: 3, Ruleset: Best Practices) https://docs.pmd-code.org/pmd-doc-7.0.0-rc4/pmd_rules_java_bestpractices.html#unusedformalparameter

Detects when a private field is declared and/or assigned a value, but not used. Since PMD 6.50.0 private fields are ignored, if the fields are annotated with any annotation or the enclosing class has any annotation. Annotations often enable a framework (such as dependency injection, mocking or e.g. Lombok) which use the fields by reflection or other means. This usage can't be detected by static code analysis. Previously these frameworks where explicitly allowed by listing their annotations in the property "ignoredAnnotations", but that turned out to be prone of false positive for any not explicitly considered framework. UnusedPrivateField (Priority: 3, Ruleset: Best Practices) https://docs.pmd-code.org/pmd-doc-7.0.0-rc4/pmd_rules_java_bestpractices.html#unusedprivatefield

Reports parameters of methods and constructors that are not referenced them in the method body. Parameters whose name starts with `ignored` or `unused` are filtered out. Removing unused formal parameters from public methods could cause a ripple effect through the code base. Hence, by default, this rule only considers private methods. To include non-private methods, set the `checkAll` property to `true`. UnusedFormalParameter (Priority: 3, Ruleset: Best Practices) https://docs.pmd-code.org/pmd-doc-7.0.0-rc4/pmd_rules_java_bestpractices.html#unusedformalparameter

Unused Private Method detects when a private method is declared but is unused. UnusedPrivateMethod (Priority: 3, Ruleset: Best Practices) https://docs.pmd-code.org/pmd-doc-7.0.0-rc4/pmd_rules_java_bestpractices.html#unusedprivatemethod

Unused Private Method detects when a private method is declared but is unused. UnusedPrivateMethod (Priority: 3, Ruleset: Best Practices) https://docs.pmd-code.org/pmd-doc-7.0.0-rc4/pmd_rules_java_bestpractices.html#unusedprivatemethod

Unused Private Method detects when a private method is declared but is unused. UnusedPrivateMethod (Priority: 3, Ruleset: Best Practices) https://docs.pmd-code.org/pmd-doc-7.0.0-rc4/pmd_rules_java_bestpractices.html#unusedprivatemethod

Unused Private Method detects when a private method is declared but is unused. UnusedPrivateMethod (Priority: 3, Ruleset: Best Practices) https://docs.pmd-code.org/pmd-doc-7.0.0-rc4/pmd_rules_java_bestpractices.html#unusedprivatemethod

Detects when a local variable is declared and/or assigned, but not used. Variables whose name starts with `ignored` or `unused` are filtered out. UnusedLocalVariable (Priority: 3, Ruleset: Best Practices) https://docs.pmd-code.org/pmd-doc-7.0.0-rc4/pmd_rules_java_bestpractices.html#unusedlocalvariable

Detects when a private field is declared and/or assigned a value, but not used. Since PMD 6.50.0 private fields are ignored, if the fields are annotated with any annotation or the enclosing class has any annotation. Annotations often enable a framework (such as dependency injection, mocking or e.g. Lombok) which use the fields by reflection or other means. This usage can't be detected by static code analysis. Previously these frameworks where explicitly allowed by listing their annotations in the property "ignoredAnnotations", but that turned out to be prone of false positive for any not explicitly considered framework. UnusedPrivateField (Priority: 3, Ruleset: Best Practices) https://docs.pmd-code.org/pmd-doc-7.0.0-rc4/pmd_rules_java_bestpractices.html#unusedprivatefield