[Codenarc-user] [ANN] Announcing CodeNarc 0.17

[Chris M. <chr...@ea...>]

The CodeNarc Team is proud to announce the release of version 0.17. 

CodeNarc <http://codenarc.sourceforge.net/>  is a static analysis tool for
Groovy source code. Version 0.17 adds 9 new rules (bringing the total to 286
rules) and a bunch of bug fixes and enhancements. You can soon try it out on
the CodeNarc web console <http://meetcodenarc.appspot.com/edit/14001> ,
running on Google App Engine.

New Rules

.         New PrivateFieldCouldBeFinal rule (#3433042): Checks for private
fields that are only set within a constructor or field initializer. Such
fields can safely be made final.

.         New ParameterReassignment rule (#3432991): Checks for a method or
closure parameter being reassigned to a new value within the body of the
method/closure, which is a confusing, bad practice. Use a temporary variable
instead.

.         New TernaryCouldBeElvis rule (#3108331): Checks for a ternary
expression with boolean and true expressions that are the same; this can be
simplified to an Elvis expression.

.         New AssertWithinFinallyBlock rule (#3489801): Checks for assert
statements within a finally block. An assert can throw an exception, hiding
the original exception, if there is one.

.         New ConstantAssertExpression rule (#3489800): Checks for assert
statements where the assert condition expressions is a constant value or
literal value.

.         New BrokenNullCheck rule (#3161693): Looks for faulty checks for
null that can cause a NullPointerException.

.         New VectorIsObsolete rule (#3495466): Checks for references to the
(effectively) obsolete java.util.Vector class. Use the Java Collections
Framework classes instead, including ArrayList or
Collections.synchronizedList().

.         New HashtableIsObsolete rule (#3495466): Checks for references to
the (effectively) obsolete java.util.Hashtable class. Use the Java
Collections Framework classes instead, including HashMap or
ConcurrentHashMap.

.         New CrapMetric rule (#3485545): Checks the CRAP metric score for
methods. This metric is based on the cyclomatic complexity and test coverage
for individual methods. Requires a Cobertura XML coverage file and GMetrics
0.5.

 

Updated and Enhanced Rules 

.         #3476844: Extend GetterMethodCouldBeProperty to also check static
getter methods.

.         #3477351: UnnecessaryConstructor: Also catch constructor
containing only call to super().

.         #3460463: StatelessClassRule and GrailsStatelessServiceRule:
Ignore fields annotated with @Inject.

.         #3460463: GrailsStatelessServiceRule: Ignore non-static properties
(i.e., no visibility modifier specified) declared with "def".

.         #3485544: AssignmentInConditional: Also catch nested binary
expressions, e.g. if (x==1 || x=3)

.         #3488705: GrailsDomainHasToString: Ignore classes annotated with
@ToString or @Canonical.

.         #3488704: GrailsDomainHasEquals: Ignore classes annotated with
@EqualsAndHashCode or @Canonical.

.         #3501349: UnnecessaryPackageReference: Also check for
explicitly-imported classes.

.         #3509542: UnnecessaryPackageReference: Also check for package
references in "as <Class>".

 

Bug Fixes 

.         #3463408: Remove unintended dependency on Java 1.6
(String.isEmpty()).

.         #3475170: Fix duplicate violations for
SimpleDateFormatMissingLocale.

.         #3477085. Fix UnusedImport violations missing line numbers for
imports with semicolons.

.         #3477162: Fix duplicate violations for UnnecessaryDotClass.

.         #3487448: Fix UnnecessaryNullCheckBeforeInstanceOf should also
check standalone binary (boolean) expressions, e.g. boolean ready = x !=
null && x instanceof Integer

.         #3496557: Fix UseCollectNestedRule: GroovyCastException: Cannot
cast object VariableExpression to class ClosureExpression

.         #3496696: Fix UnusedPrivateFieldRule: GroovyCastException: Cannot
cast object with class 'org.codehaus.groovy.ast.FieldNode' to class
'groovy.lang.MetaClass'.

Framework and Infrastructure

.         #3495841: Support Groovy 2.x.

.         #3496463: Support GMetrics 0.5.

 

Visit the CodeNarc Home Page <http://codenarc.sourceforge.net/>