vivek@Viveks-MacBook-Air tmp % cat > /var/tmp/TestTryDistance.java <<'EOF'
/** Test class for VariableDeclarationUsageDistance try-block false negative. */
public class TestTryDistance {

  /** Case 1: usage inside if, correctly flagged. */
  void testIf() {
    int x = 10;
    System.lineSeparator();
    System.lineSeparator();
    System.lineSeparator();
    if (x > 5) {
      System.out.println("yes");
    }
  }

  /** Case 2: identical pattern but usage inside try, NOT flagged (bug). */
  void testTry() {
    int x = 10;
    System.lineSeparator();
    System.lineSeparator();
    System.lineSeparator();
    try {
      System.out.println(x);
    } catch (Exception e) {
      e.printStackTrace();
    }
  }

  /** Case 3: usage inside for, correctly flagged. */
  void testFor() {
    int x = 10;
    System.lineSeparator();
    System.lineSeparator();
    System.lineSeparator();
    for (int i = 0; i < 1; i++) {
      System.out.println(x);
    }
  }
}
EOF

vivek@Viveks-MacBook-Air tmp % cat > /var/tmp/config.xml <<'EOF'
<?xml version="1.0"?>
<!DOCTYPE module PUBLIC
  "-//Checkstyle//DTD Checkstyle Configuration 1.3//EN"
  "https://checkstyle.org/dtds/configuration_1_3.dtd">
<module name="Checker">
  <module name="TreeWalker">
    <module name="VariableDeclarationUsageDistance"/>
  </module>
</module>
EOF

vivek@Viveks-MacBook-Air tmp % javac TestTryDistance.java

vivek@Viveks-MacBook-Air tmp % RUN_LOCALE="-Duser.language=en -Duser.country=US"
java $RUN_LOCALE -jar /Users/vivek/checkstyle/target/checkstyle-13.4.1-SNAPSHOT-all.jar -c config.xml TestTryDistance.java

Starting audit...
[ERROR] /private/var/tmp/TestTryDistance.java:6:5: Distance between variable 'x' declaration and its first usage is 4, but allowed 3.  Consider making that variable final if you still need to store its value in advance (before method calls that might have side effects on the original value). [VariableDeclarationUsageDistance]
[ERROR] /private/var/tmp/TestTryDistance.java:30:5: Distance between variable 'x' declaration and its first usage is 4, but allowed 3.  Consider making that variable final if you still need to store its value in advance (before method calls that might have side effects on the original value). [VariableDeclarationUsageDistance]
Audit done.
Checkstyle ends with 2 errors.