com.puppycrawl.tools.checkstyle.checks.coding
Class RedundantThrowsCheck

java.lang.Object
  com.puppycrawl.tools.checkstyle.api.AutomaticBean
      com.puppycrawl.tools.checkstyle.api.AbstractViolationReporter
          com.puppycrawl.tools.checkstyle.api.Check
              com.puppycrawl.tools.checkstyle.checks.AbstractTypeAwareCheck
                  com.puppycrawl.tools.checkstyle.checks.coding.RedundantThrowsCheck

All Implemented Interfaces:

Configurable, Contextualizable

public class RedundantThrowsCheck
extends AbstractTypeAwareCheck

Checks for redundant exceptions declared in throws clause such as duplicates, unchecked exceptions or subclasses of another declared exception.

An example of how to configure the check is:

 <module name="RedundantThrows">
    <property name="allowUnchecked" value="true"/>
    <property name="allowSubclasses" value="true"/>
 </module>
 

Author:

o_sukhodolsky

Nested Class Summary

Nested classes/interfaces inherited from class com.puppycrawl.tools.checkstyle.checks.AbstractTypeAwareCheck

AbstractTypeAwareCheck.ClassInfo, AbstractTypeAwareCheck.Token

Constructor Summary

RedundantThrowsCheck()

Method Summary

int[]	getDefaultTokens() Returns the default token a check is interested in.
protected void	logLoadError(AbstractTypeAwareCheck.Token aIdent) Logs error if unable to load class information.
protected void	processAST(DetailAST aAST) Called to process an AST when visiting it.
void	setAllowSubclasses(boolean aAllowSubclasses) Getter for allowSubclasses property.
void	setAllowUnchecked(boolean aAllowUnchecked) Getter for allowUnchecked property.

Methods inherited from class com.puppycrawl.tools.checkstyle.checks.AbstractTypeAwareCheck

beginTree, createClassInfo, findClassAlias, getCurrentClassName, getRequiredTokens, isSubclass, isUnchecked, leaveAST, leaveToken, logLoadErrorImpl, resolveClass, setLogLoadErrors, setSuppressLoadErrors, tryLoadClass, visitToken

Methods inherited from class com.puppycrawl.tools.checkstyle.api.Check

destroy, finishTree, getAcceptableTokens, getClassLoader, getFileContents, getLines, getTabWidth, getTokenNames, init, log, log, setClassLoader, setFileContents, setMessages, setTabWidth, setTokens

Methods inherited from class com.puppycrawl.tools.checkstyle.api.AbstractViolationReporter

getCustomMessages, getId, getMessageBundle, getSeverity, getSeverityLevel, log, setId, setSeverity

Methods inherited from class com.puppycrawl.tools.checkstyle.api.AutomaticBean

configure, contextualize, finishLocalSetup, getConfiguration, setupChild

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

RedundantThrowsCheck

public RedundantThrowsCheck()

Method Detail

setAllowUnchecked

public void setAllowUnchecked(boolean aAllowUnchecked)

Getter for allowUnchecked property.

Parameters:

aAllowUnchecked - whether unchecked excpetions in throws are allowed or not

setAllowSubclasses

public void setAllowSubclasses(boolean aAllowSubclasses)

Getter for allowSubclasses property.

Parameters:

aAllowSubclasses - whether subclass of another declared exception is allowed in throws clause

getDefaultTokens

public int[] getDefaultTokens()

Description copied from class: Check

Returns the default token a check is interested in. Only used if the configuration for a check does not define the tokens.

Specified by:

getDefaultTokens in class Check

Returns:

the default tokens

See Also:

TokenTypes

processAST

protected final void processAST(DetailAST aAST)

Description copied from class: AbstractTypeAwareCheck

Called to process an AST when visiting it.

Specified by:

processAST in class AbstractTypeAwareCheck

Parameters:

aAST - the AST to process. Guaranteed to not be PACKAGE_DEF or IMPORT tokens.

logLoadError

protected final void logLoadError(AbstractTypeAwareCheck.Token aIdent)

Description copied from class: AbstractTypeAwareCheck

Logs error if unable to load class information. Abstract, should be overrided in subclasses.

Specified by:

logLoadError in class AbstractTypeAwareCheck

Parameters:

aIdent - class name for which we can no load class.