org.codenarc.rule.unnecessary (CodeNarc 3.0.0 API)

Class Summary
Class	Description
AddEmptyStringRule	Finds empty string literals which are being added.
ConsecutiveLiteralAppendsRule	Violations occur when method calls to append(Object) are chained together with literals as parameters.
ConsecutiveStringConcatenationRule	Catches concatenation of two string literals on the same line.
UnnecessaryBigDecimalInstantiationRule	It is unnecessary to instantiate BigDecimal objects.
UnnecessaryBigIntegerInstantiationRule	It is unnecessary to instantiate BigInteger objects.
UnnecessaryBooleanExpressionRule	Rule that checks unnecessary boolean expressions, including ANDing (&&) or ORing (\|\|) with `true`, `false`, `null`, or a Map/List/String/Number literal.
UnnecessaryBooleanInstantiationRule	Rule that checks for direct call to Boolean constructor - use Boolean.valueOf() instead.
UnnecessaryCallForLastElementRule	This rule checks for excessively verbose methods of accessing the last element of an array or list.
UnnecessaryCallToSubstringRule	Calling String.substring(0) always returns the original string.
UnnecessaryCastRule	Checks for unnecessary cast operations
UnnecessaryCatchBlockRule	Violations are triggered when a catch block does nothing but throw the original exception.
UnnecessaryCollectCallRule	Some method calls to Object.collect(Closure) can be replaced with the spread operator.
UnnecessaryCollectionCallRule	Useless call to collections.
UnnecessaryConstructorRule	UnnecessaryConstructor.
UnnecessaryDefInFieldDeclarationRule	If a field has a visibility modifier or a type declaration, then the def keyword is unneeded.
UnnecessaryDefInMethodDeclarationRule	If a method has a visibility modifier or a type declaration, then the def keyword is unneeded.
UnnecessaryDefInVariableDeclarationRule	If a variable has a visibility modifier or a type declaration, then the def keyword is unneeded.
UnnecessaryDotClassRule	To make a reference to a class, it is unnecessary to specify the '.class' identifier.
UnnecessaryDoubleInstantiationRule	It is unnecessary to instantiate Double objects.
UnnecessaryElseStatementRule	When an if statement block ends with a return statement the else is unnecessary
UnnecessaryFinalOnPrivateMethodRule	A private method is marked final.
UnnecessaryFloatInstantiationRule	It is unnecessary to instantiate Float objects.
UnnecessaryGStringRule	String objects should be created with single quotes, and GString objects created with double quotes.
UnnecessaryGetterRule	Checks for explicit calls to getter/accessor methods which can, for the most part, be replaced by property access.
UnnecessaryIfStatementRule	Rule that checks for unnecessary if statements.
UnnecessaryInstanceOfCheckRule	This rule finds instanceof checks that cannot possibly evaluate to true.
UnnecessaryInstantiationAstVisitor	Base visitor for unnecessary constructor calls.
UnnecessaryInstantiationToGetClassRule	Avoid instantiating an object just to call getClass() on it; use the .class public member instead.
UnnecessaryIntegerInstantiationRule	It is unnecessary to instantiate Integer objects.
UnnecessaryLongInstantiationRule	It is unnecessary to instantiate Long objects.
UnnecessaryModOneRule	Any expression mod 1 (exp % 1) is guaranteed to always return zero.
UnnecessaryNullCheckBeforeInstanceOfRule	There is no need to check for null before an instanceof; the instanceof keyword returns false when given a null argument.
UnnecessaryNullCheckRule	Groovy contains the safe dereference operator, which can be used in boolean conditional statements to safely replace explicit "x == null" tests.
UnnecessaryObjectReferencesRule	Violations are triggered when an excessive set of consecutive statements all reference the same variable.
UnnecessaryOverridingMethodRule	The overriding method merely calls the same method defined in a superclass.
UnnecessaryPackageReferenceRule	Checks for explicit package reference for classes that Groovy imports by default, such as java.lang.String, java.util.Map and groovy.lang.Closure, as well as classes that were explicitly imported.
UnnecessaryParenthesesForMethodCallWithClosureRule	If a method is called and the only parameter to that method is an inline closure then the brackets of the method call can be omitted.
UnnecessaryPublicModifierRule	The 'public' modifier is not required on methods, constructors or classes.
UnnecessaryReturnKeywordRule	In Groovy, the return keyword is often optional.
UnnecessarySafeNavigationOperatorRule	Check for safe navigation operator (?.)
UnnecessarySelfAssignmentRule	Method contains a pointless self-assignment to a variable or property.
UnnecessarySemicolonRule	Semicolons as line terminators are not required in Groovy: remove them.
UnnecessarySetterRule	Checks for explicit calls to setter methods which can, for the most part, be replaced by assignment to property.
UnnecessaryStringInstantiationRule	Rule that checks for direct call to the String constructor that accepts a String literal.
UnnecessaryTernaryExpressionRule	Rule that checks for ternary expressions where the conditional expression always evaluates to a boolean and the true and false expressions are merely returning `true` and `false` constants.
UnnecessaryToStringRule	Checks for unnecessary calls to toString().
UnnecessaryTransientModifierRule	The field is marked as transient, but the class isn't Serializable, so marking it as transient should have no effect.

AddEmptyStringRule

Finds empty string literals which are being added.

ConsecutiveLiteralAppendsRule

Violations occur when method calls to append(Object) are chained together with literals as parameters.

ConsecutiveStringConcatenationRule

Catches concatenation of two string literals on the same line.

UnnecessaryBigDecimalInstantiationRule

It is unnecessary to instantiate BigDecimal objects.

UnnecessaryBigIntegerInstantiationRule

It is unnecessary to instantiate BigInteger objects.

UnnecessaryBooleanExpressionRule

Rule that checks unnecessary boolean expressions, including ANDing (&&) or ORing (||) with true, false, null, or a Map/List/String/Number literal.

UnnecessaryBooleanInstantiationRule

Rule that checks for direct call to Boolean constructor - use Boolean.valueOf() instead.

UnnecessaryCallForLastElementRule

This rule checks for excessively verbose methods of accessing the last element of an array or list.

UnnecessaryCallToSubstringRule

Calling String.substring(0) always returns the original string.

UnnecessaryCastRule

Checks for unnecessary cast operations

UnnecessaryCatchBlockRule

Violations are triggered when a catch block does nothing but throw the original exception.

UnnecessaryCollectCallRule

Some method calls to Object.collect(Closure) can be replaced with the spread operator.

UnnecessaryCollectionCallRule

Useless call to collections.

UnnecessaryConstructorRule

UnnecessaryConstructor.

UnnecessaryDefInFieldDeclarationRule

If a field has a visibility modifier or a type declaration, then the def keyword is unneeded.

UnnecessaryDefInMethodDeclarationRule

If a method has a visibility modifier or a type declaration, then the def keyword is unneeded.

UnnecessaryDefInVariableDeclarationRule

If a variable has a visibility modifier or a type declaration, then the def keyword is unneeded.

UnnecessaryDotClassRule

To make a reference to a class, it is unnecessary to specify the '.class' identifier.

UnnecessaryDoubleInstantiationRule

It is unnecessary to instantiate Double objects.

UnnecessaryElseStatementRule

When an if statement block ends with a return statement the else is unnecessary

UnnecessaryFinalOnPrivateMethodRule

A private method is marked final.

UnnecessaryFloatInstantiationRule

It is unnecessary to instantiate Float objects.

UnnecessaryGStringRule

String objects should be created with single quotes, and GString objects created with double quotes.

UnnecessaryGetterRule

Checks for explicit calls to getter/accessor methods which can, for the most part, be replaced by property access.

UnnecessaryIfStatementRule

Rule that checks for unnecessary if statements.

UnnecessaryInstanceOfCheckRule

This rule finds instanceof checks that cannot possibly evaluate to true.

UnnecessaryInstantiationAstVisitor

Base visitor for unnecessary constructor calls.

UnnecessaryInstantiationToGetClassRule

Avoid instantiating an object just to call getClass() on it; use the .class public member instead.

UnnecessaryIntegerInstantiationRule

It is unnecessary to instantiate Integer objects.

UnnecessaryLongInstantiationRule

It is unnecessary to instantiate Long objects.

UnnecessaryModOneRule

Any expression mod 1 (exp % 1) is guaranteed to always return zero.

UnnecessaryNullCheckBeforeInstanceOfRule

There is no need to check for null before an instanceof; the instanceof keyword returns false when given a null argument.

UnnecessaryNullCheckRule

Groovy contains the safe dereference operator, which can be used in boolean conditional statements to safely replace explicit "x == null" tests.

UnnecessaryObjectReferencesRule

Violations are triggered when an excessive set of consecutive statements all reference the same variable.

UnnecessaryOverridingMethodRule

The overriding method merely calls the same method defined in a superclass.

UnnecessaryPackageReferenceRule

Checks for explicit package reference for classes that Groovy imports by default, such as java.lang.String, java.util.Map and groovy.lang.Closure, as well as classes that were explicitly imported.

UnnecessaryParenthesesForMethodCallWithClosureRule

If a method is called and the only parameter to that method is an inline closure then the brackets of the method call can be omitted.

UnnecessaryPublicModifierRule

The 'public' modifier is not required on methods, constructors or classes.

UnnecessaryReturnKeywordRule

In Groovy, the return keyword is often optional.

UnnecessarySafeNavigationOperatorRule

Check for safe navigation operator (?.)

UnnecessarySelfAssignmentRule

Method contains a pointless self-assignment to a variable or property.

UnnecessarySemicolonRule

Semicolons as line terminators are not required in Groovy: remove them.

UnnecessarySetterRule

Checks for explicit calls to setter methods which can, for the most part, be replaced by assignment to property.

UnnecessaryStringInstantiationRule

Rule that checks for direct call to the String constructor that accepts a String literal.

UnnecessaryTernaryExpressionRule

Rule that checks for ternary expressions where the conditional expression always evaluates to a boolean and the true and false expressions are merely returning true and false constants.

UnnecessaryToStringRule

Checks for unnecessary calls to toString().

UnnecessaryTransientModifierRule

The field is marked as transient, but the class isn't Serializable, so marking it as transient should have no effect.

Package org.codenarc.rule.unnecessary