Ruleset file with custom rules for pmd

myrules.xml

<?xml version="1.0"?>
<ruleset name="Custom Rules"
    xmlns="http://pmd.sourceforge.net/ruleset/2.0.0"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://pmd.sourceforge.net/ruleset/2.0.0 http://pmd.sourceforge.net/ruleset_2_0_0.xsd">
    <description>
		My Custom rules
    </description>
    <!-- Using a single rule from a set of predefined rules -->
	<rule ref="category/apex/bestpractices.xml/AvoidLogicInTrigger" />
    <!-- Using whole set of predefined rules -->
	<rule ref="category/apex/errorprone.xml" />
    <!-- Using whole set of rules excluding some -->
    <rule ref="category/apex/codestyle.xml">
	<exclude name="WhileLoopsMustUseBraces"/>    
    </rule>
</ruleset>