Modifier Checks

Modifier

Description

Checks that the order of modifiers conforms to the suggestions in the Java Language specification, sections 8.1.1, 8.3.1 and 8.4.3. The correct order is:

1. public
2. protected
3. private
4. abstract
5. static
6. final
7. transient
8. volatile
9. synchronized
10. native
11. strictfp

Example

To configure the check:

<module name="Modifier"/>
      

Package

com.puppycrawl.tools.checkstyle.checks

Parent Module

TreeWalker

RedundantModifier

Checks that method declarations in interfaces include neither the public modifier nor the abstract modifier (see the Java Language specification, section 9.4).

Example

To configure the check:

<module name="RedundantModifier"/>
      

Package

com.puppycrawl.tools.checkstyle.checks

Parent Module

TreeWalker

VisibilityModifier

Checks visibility of class members. Only static final members may be public; other class members must be private unless property protectedAllowed or packageAllowed is set.

Public members are not flagged if the name matches the public member regular expression (contains "^serialVersionUID$" by default). Note: Checkstyle 2 used to include "^f[A-Z][a-zA-Z0-9]*$" in the default pattern to allow CMP for EJB 1.1 with the default settings. With EJB 2.0 it is not longer necessary to have public access for persistent fields.

Rationale: Enforce encapsulation.

Properties

Examples

To configure the check:

<module name="VisibilityModifier"/>
      

To configure the check so that it allows package visible members:

<module name="VisibilityModifier">
    <property name="packageAllowed" value="true"/>
</module>
      

To configure the check so that it allows no public members:

<module name="VisibilityModifier">
    <property name="publicMemberPattern" value="^$"/>
</module>
      

Package

com.puppycrawl.tools.checkstyle.checks

Parent Module

TreeWalker