openjpa/openjpa-project/checkstyle.xml

<?xml version="1.0" ?>
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    license agreements. See the NOTICE file distributed with this work for additional 
    information regarding copyright ownership. The ASF licenses this file to 
    you under the Apache License, Version 2.0 (the "License"); you may not use 
    this file except in compliance with the License. You may obtain a copy of 
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    language governing permissions and limitations under the License. -->
<!DOCTYPE module PUBLIC
        "-//Puppy Crawl//DTD Check Configuration 1.2//EN"
        "http://www.puppycrawl.com/dtds/configuration_1_2.dtd">

<!-- This is a temporary file. As we get closer to enforcing the OpenJPA 
    style to be like the default Sun Microsystems Definition default file, then 
    we can remove this file and remove the reference from the pom.xml -->

<module name="Checker">
    <module name="NewlineAtEndOfFile">
        <property name="lineSeparator" value="lf"/>
    </module>
    <module name="TreeWalker">
        <module name="FileContentsHolder"/>
        <module name="LineLength">
            <property name="max" value="150"/>
        </module>
        <module name="RegexpSinglelineJava">
            <property name="format" value="System\.(out|err)\.print(ln)?\("/>
            <property name="ignoreComments" value="true"/>
        </module>
    </module>
    <module name="SuppressionCommentFilter">
        <property name="offCommentFormat" value="// START - ALLOW PRINT STATEMENTS"/>
        <property name="onCommentFormat" value="// STOP - ALLOW PRINT STATEMENTS"/>
    </module>

    <!-- File location is specified in root pom.xml via ${checkstyle.suppressions.location} -->
    <module name="SuppressionFilter"/>
</module>