$ cat TestClass.java
public class TestClass
{
    public static class SimpleClass {
        public void method() {}
    }

    void method()
    {
        final SimpleClass test =
                new SimpleClass() { //indent:16
                    public void method() {}
                }; //indent:16
        final SimpleClass test2 =
                new SimpleClass() //indent:16
                { //indent:16 violation
                    public void method() {}
                }; //indent:16
    }
}

$ cat TestConfig.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="Indentation">
  <property name="tabWidth" value="4" />
  <property name="basicOffset" value="4" />
  <property name="braceAdjustment" value="0" />
  <property name="caseIndent" value="4" />
  <property name="lineWrappingIndentation" value="8" />
  <property name="throwsIndent" value="4" />
  <property name="arrayInitIndent" value="4" />
</module>
    </module>
</module>

$ java -jar checkstyle-7.4-all.jar -c TestConfig.xml TestClass.java
Starting audit...
[ERROR] TestClass.java:15: 'object def lcurly' have incorrect indentation level 16, expected level should be one of the following: 8, 12. [Indentation]
Audit done.
Checkstyle ends with 1 errors.