== Why is this an issue? include::../description.adoc[] === Noncompliant code example [source,java] ---- Pattern.compile("hello world"); ---- === Compliant solution [source,java] ---- Pattern.compile("hello {3}world"); ---- === Exceptions In https://www.regular-expressions.info/freespacing.html[free-spacing mode] (``++Pattern.COMMENTS++`` flag, or with embedded flag expression ``++(?x)++``), whitespaces are ignored. In this case no issue should be triggered, because the whitespaces may be intended to improve readability. include::../implementation.adoc[]