== Why is this an issue? include::../description.adoc[] === Noncompliant code example With the default regular expression ``++^[a-z_]+(\.[a-z_][a-z0-9_]*)*$++``: [source,java] ---- package org.exAmple; // Noncompliant ---- === Compliant solution [source,java] ---- package org.example; ---- ifdef::env-github,rspecator-view[] ''' == Implementation Specification (visible only on this page) include::../message.adoc[] include::parameters.adoc[] ''' == Comments And Links (visible only on this page) include::../comments-and-links.adoc[] endif::env-github,rspecator-view[]