resources/checkstyle.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE module PUBLIC "-//Puppy Crawl//DTD Check Configuration 1.3//EN" "http://www.puppycrawl.com/dtds/configuration_1_3.dtd">

<module name="Checker">
    <property name="severity" value="warning"/>
    <module name="NewlineAtEndOfFile"/>
    <module name="SuppressionFilter">
        <property name="file" value="resources/checkstyle_suppressions.xml"/>
    </module>
    <module name="TreeWalker">
        <module name="AvoidStarImport"/>
        <module name="EmptyStatement"/>
        <module name="IllegalThrows"/>
<!--
        jclouds prefers 120 character line lengths but has many files with
        longer lines
        <module name="LineLength">
            <property name="ignorePattern" value="^import\s.*;$"/>
            <property name="max" value="120"/>
        </module>
-->
        <module name="ModifierOrder"/>
        <module name="MultipleVariableDeclarations"/>
        <module name="SimplifyBooleanExpression"/>
        <module name="UnnecessaryParentheses"/>
        <module name="UnusedImports"/>
        <module name="InterfaceIsType">
            <property name="allowMarkerInterfaces" value="false"/>
        </module>
    </module>
    <module name="RegexpMultiline">
        <property name="format" value="=\s*new ArrayList&lt;[^&gt;]"/>
        <property name="message" value="Prefer com.google.common.collect.Lists"/>
    </module>
    <module name="RegexpMultiline">
        <property name="format" value="=\s*new HashMap&lt;[^&gt;]"/>
        <property name="message" value="Prefer com.google.common.collect.Maps"/>
    </module>
    <module name="RegexpMultiline">
        <property name="format" value="=\s*new HashSet&lt;[^&gt;]"/>
        <property name="message" value="Prefer com.google.common.collect.Sets"/>
    </module>
    <module name="RegexpMultiline">
        <property name="format" value="=\s*new LinkedHashMap&lt;[^&gt;]"/>
        <property name="message" value="Prefer com.google.common.collect.Maps"/>
    </module>
    <module name="RegexpMultiline">
        <property name="format" value="=\s*new LinkedHashSet&lt;[^&gt;]"/>
        <property name="message" value="Prefer com.google.common.collect.Sets"/>
    </module>
    <module name="RegexpMultiline">
        <property name="format" value="=\s*new LinkedList&lt;[^&gt;]"/>
        <property name="message" value="Prefer com.google.common.collect.Lists"/>
    </module>
    <module name="RegexpMultiline">
        <property name="format" value="=\s*new TreeMap&lt;[^&gt;]"/>
        <property name="message" value="Prefer com.google.common.collect.Maps"/>
    </module>
    <module name="RegexpMultiline">
        <property name="format" value="=\s*new TreeSet&lt;[^&gt;]"/>
        <property name="message" value="Prefer com.google.common.collect.Sets"/>
    </module>
    <module name="RegexpMultiline">
        <property name="format" value="=\s*new AtomicReference&lt;[^&gt;]"/>
        <property name="message" value="Prefer com.google.common.util.concurrent.Atomics"/>
    </module>
    <module name="RegexpMultiline">
        <property name="format" value="new StringBuffer"/>
        <property name="message" value="Prefer java.lang.StringBuilder"/>
    </module>
</module>