seata/common/target/ali-constant.xml

<?xml version="1.0"?>

<ruleset name="AlibabaJavaConstants" 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">


    <rule name="UpperEllRule"
        message="java.constant.UpperEllRule.rule.msg"
        class="com.alibaba.p3c.pmd.lang.java.rule.constant.UpperEllRule">
        <priority>1</priority>
        <example>
      <![CDATA[
Negative example:
    //It is hard to tell whether it is number 11 or Long 1.
    Long warn = 1l;
       ]]>
        </example> 
        <example>
        <![CDATA[
Positive example:
    Long notwarn = 1L;
        ]]>
         </example>
    </rule>
    
    <rule name="UndefineMagicConstantRule"
        message="java.constant.UndefineMagicConstantRule.rule.msg"
        class="com.alibaba.p3c.pmd.lang.java.rule.constant.UndefineMagicConstantRule">
        <priority>3</priority>

        <example>
        <![CDATA[    
Negative example:
    //Magic values, except for predefined, are forbidden in coding.
    if (key.equals("Id#taobao_1")) {
            //...
    }
         ]]>
        </example>
        <example>
        <![CDATA[ 
Positive example:
    String KEY_PRE = "Id#taobao_1";  
    if (KEY_PRE.equals(key)) {
            //...
    }
      ]]>
      </example>
    </rule>

</ruleset>