$ cat config.xml 
<?xml version="1.0"?>
<!DOCTYPE module PUBLIC
          "-//Puppy Crawl//DTD Check Configuration 1.3//EN"
          "http://www.puppycrawl.com/dtds/configuration_1_3.dtd">

<module name="Checker">
    <property name="charset" value="UTF-8"/>

    <module name="TreeWalker">
        <module name="CyclomaticComplexityCheck">
            <property name="max" value="0" />
        </module>
    </module>
</module>

$ cat TestClass.java 
package org.checkstyle.suppressionxpathfilter.cyclomaticcomplexity;

public class SuppressionXpathRegressionCyclomaticOne {
    public void test(int a, int b) { //warn
        if (a > b) {

        } else {

        }
    }

$ java -jar checkstyle-8.10-all.jar -c config.xml TestClass.java 
Starting audit...
[ERROR] TestClass.java:4:5: Cyclomatic Complexity is 2 (max allowed is 0). [CyclomaticComplexity]
Audit done.
Checkstyle ends with 1 errors.

$ java -jar checkstyle-8.10-all.jar -t TestClass.java | grep "4:5"

$ java -jar checkstyle-8.10-all.jar -t TestClass.java | grep "4:4"
    |--METHOD_DEF -> METHOD_DEF [4:4]
    |   |--MODIFIERS -> MODIFIERS [4:4]
    |   |   `--LITERAL_PUBLIC -> public [4:4]