Package com.puppycrawl.tools.checkstyle.checks.coding

Class UnnecessarySemicolonInTryWithResourcesCheck

  • All Implemented Interfaces:
    Configurable, Contextualizable
    public final class UnnecessarySemicolonInTryWithResourcesCheck
extends AbstractCheck

    Checks if unnecessary semicolon is used in last resource declaration.

    • Property allowWhenNoBraceAfterSemicolon - Allow unnecessary semicolon if closing paren is not on the same line. Type is boolean. Default value is true.

    To configure the check: 

     <module name="UnnecessarySemicolonInTryWithResources"/>

    Example of violations 

     class A {
     void method() throws IOException {
         try(Reader r1 = new PipedReader();){} // violation
         try(Reader r4 = new PipedReader();Reader r5 = new PipedReader()
         ;){} // violation
         try(Reader r6 = new PipedReader();
             Reader r7
                    = new PipedReader();
         ){}
     }
 }

    To configure the check to detect unnecessary semicolon if closing paren is not on same line 

     <module name="UnnecessarySemicolonInTryWithResources">
   <property name="allowWhenNoBraceAfterSemicolon" value="false"/>
 </module>

    Example of exclusion 

     class A {
     void method() throws IOException {
         try(Reader r1 = new PipedReader();){} // violation
         try(Reader r6 = new PipedReader();
             Reader r7 = new PipedReader(); // violation
         ){}
     }
 }

    Parent is com.puppycrawl.tools.checkstyle.TreeWalker

    Violation Message Keys:

    • unnecessary.semicolon
    Since:
    8.22