code: ///////////////////////////////////////////////////////////////////////////////////////////////
  // checkstyle: Checks Java source code and other text files for adherence to a set of rules.
  // Copyright (C) 2001-2023 the original author or authors.
  //
  // This library is free software; you can redistribute it and/or
  // modify it under the terms of the GNU Lesser General Public
  // License as published by the Free Software Foundation; either
  // version 2.1 of the License, or (at your option) any later version.
  //
  // This library is distributed in the hope that it will be useful,
  // but WITHOUT ANY WARRANTY; without even the implied warranty of
  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  // Lesser General Public License for more details.
  //
  // You should have received a copy of the GNU Lesser General Public
  // License along with this library; if not, write to the Free Software
  // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  ///////////////////////////////////////////////////////////////////////////////////////////////
  
  package com.puppycrawl.tools.checkstyle.checks.coding;
  
  import com.puppycrawl.tools.checkstyle.StatelessCheck;
  import com.puppycrawl.tools.checkstyle.api.AbstractCheck;
  import com.puppycrawl.tools.checkstyle.api.DetailAST;
  import com.puppycrawl.tools.checkstyle.api.TokenTypes;
  import com.puppycrawl.tools.checkstyle.utils.TokenUtil;
  
  /**
   * <p>
   * Checks if unnecessary semicolon is used in last resource declaration.
   * </p>
   * <ul>
   * <li>
   * Property {@code allowWhenNoBraceAfterSemicolon} -
   * Allow unnecessary semicolon if closing paren is not on the same line.
   * Type is {@code boolean}.
   * Default value is {@code true}.
   * </li>
   * </ul>
   * <p>
   * To configure the check:
   * </p>
   * <pre>
   * &lt;module name=&quot;UnnecessarySemicolonInTryWithResources&quot;/&gt;
   * </pre>
   * <p>
   * Example of violations
   * </p>
   * <pre>
   * 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();
   *         ){}
   *     }
   * }
   * </pre>
   * <p>
   * To configure the check to detect unnecessary semicolon
   * if closing paren is not on same line
   * </p>
   * <pre>
   * &lt;module name="UnnecessarySemicolonInTryWithResources"&gt;
   *   &lt;property name="allowWhenNoBraceAfterSemicolon" value="false"/&gt;
   * &lt;/module&gt;
   * </pre>
   * <p>
   * Example of exclusion
   * </p>
   * <pre>
   * class A {
   *     void method() throws IOException {
   *         try(Reader r1 = new PipedReader();){} // violation
   *         try(Reader r6 = new PipedReader();
   *             Reader r7 = new PipedReader(); // violation
   *         ){}
   *     }
   * }
   * </pre>
   * <p>
   * Parent is {@code com.puppycrawl.tools.checkstyle.TreeWalker}
   * </p>
   * <p>
   * Violation Message Keys:
   * </p>
   * <ul>
   * <li>
   * {@code unnecessary.semicolon}
   * </li>
   * </ul>
   *
   * @since 8.22
   */
  @StatelessCheck
  public final class UnnecessarySemicolonInTryWithResourcesCheck extends AbstractCheck {
  
      /**
       * A key is pointing to the warning message text in "messages.properties"
       * file.
       */
      public static final String MSG_SEMI = "unnecessary.semicolon";
  
      /** Allow unnecessary semicolon if closing paren is not on the same line. */
      private boolean allowWhenNoBraceAfterSemicolon = true;
  
      @Override
      public int[] getDefaultTokens() {
          return getRequiredTokens();
      }
  
      @Override
      public int[] getAcceptableTokens() {
          return getRequiredTokens();
      }
  
      @Override
      public int[] getRequiredTokens() {
          return new int[] {
              TokenTypes.RESOURCE_SPECIFICATION,
          };
      }
  
      /**
       * Setter to allow unnecessary semicolon if closing paren is not on the same line.
       *
       * @param allowWhenNoBraceAfterSemicolon a value to set.
       */
      public void setAllowWhenNoBraceAfterSemicolon(boolean allowWhenNoBraceAfterSemicolon) {
          this.allowWhenNoBraceAfterSemicolon = allowWhenNoBraceAfterSemicolon;
      }
  
      @Override
      public void visitToken(DetailAST ast) {
          final DetailAST closingParen = ast.getLastChild();
          final DetailAST tokenBeforeCloseParen = closingParen.getPreviousSibling();
          if (tokenBeforeCloseParen.getType() == TokenTypes.SEMI
              && (!allowWhenNoBraceAfterSemicolon
                  || TokenUtil.areOnSameLine(closingParen, tokenBeforeCloseParen))) {
              log(tokenBeforeCloseParen, MSG_SEMI);
          }
      }
  
  }
  