EmptyForInitializerPad: ArrayIndexOutOfBoundsException

[rnveach]

Identified at #12277 ,

$ cat TestClass.java
public class TestClass {
    void method() {
for (
;;) {}
    }
}

$ cat TestConfig.xml
<?xml version="1.0"?>
<!DOCTYPE module PUBLIC
          "-//Puppy Crawl//DTD Check Configuration 1.3//EN"
          "https://checkstyle.org/dtds/configuration_1_3.dtd">

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

    <module name="TreeWalker">
         <module name="EmptyForInitializerPad">
         </module>
    </module>
</module>

$ java -jar checkstyle-10.3.4-all.jar -c TestConfig.xml TestClass.java
Starting audit...
com.puppycrawl.tools.checkstyle.api.CheckstyleException: Exception was thrown while processing TestClass.java
    at com.puppycrawl.tools.checkstyle.Checker.processFiles(Checker.java:307)
    at com.puppycrawl.tools.checkstyle.Checker.process(Checker.java:224)
    at com.puppycrawl.tools.checkstyle.Main.runCheckstyle(Main.java:416)
    at com.puppycrawl.tools.checkstyle.Main.runCli(Main.java:339)
    at com.puppycrawl.tools.checkstyle.Main.execute(Main.java:196)
    at com.puppycrawl.tools.checkstyle.Main.main(Main.java:131)
Caused by: java.lang.ArrayIndexOutOfBoundsException: origin(0) > fence(-1)
    at java.base/java.util.Spliterators.checkFromToBounds(Spliterators.java:387)
    at java.base/java.util.Spliterators.spliterator(Spliterators.java:239)
    at java.base/java.util.Arrays.spliterator(Arrays.java:5521)
    at java.base/java.util.Arrays.stream(Arrays.java:5663)
    at com.puppycrawl.tools.checkstyle.utils.CodePointUtil.hasWhitespaceBefore(CodePointUtil.java:54)
    at com.puppycrawl.tools.checkstyle.checks.whitespace.EmptyForInitializerPadCheck.visitToken(EmptyForInitializerPadCheck.java:157)
    at com.puppycrawl.tools.checkstyle.TreeWalker.notifyVisit(TreeWalker.java:336)
    at com.puppycrawl.tools.checkstyle.TreeWalker.processIter(TreeWalker.java:407)
    at com.puppycrawl.tools.checkstyle.TreeWalker.walk(TreeWalker.java:274)
    at com.puppycrawl.tools.checkstyle.TreeWalker.processFiltered(TreeWalker.java:155)
    at com.puppycrawl.tools.checkstyle.api.AbstractFileSetCheck.process(AbstractFileSetCheck.java:98)
    at com.puppycrawl.tools.checkstyle.Checker.processFile(Checker.java:335)
    at com.puppycrawl.tools.checkstyle.Checker.processFiles(Checker.java:294)
    ... 5 more
Checkstyle ends with 1 errors.

I am expecting no violation.

[pbludov]

Fix is merged.