diff --git a/app/src/main/java/org/dystopia/email/AdapterMessage.java b/app/src/main/java/org/dystopia/email/AdapterMessage.java
index da09c856..b16207f7 100644
--- a/app/src/main/java/org/dystopia/email/AdapterMessage.java
+++ b/app/src/main/java/org/dystopia/email/AdapterMessage.java
@@ -381,7 +381,7 @@ public class AdapterMessage extends PagedListAdapter<TupleMessageEx, AdapterMess
           int limit = compact ? 60 : 120;
           tvSummary.setText(plainText.substring(0, Math.min(plainText.length(), limit)) + "...");
           tvSummary.setVisibility(View.VISIBLE);
-        } catch(IOException ex) {
+        } catch (IOException ex) {
           Log.e(Helper.TAG, ex + "\n" + Log.getStackTraceString(ex));
         }
       }
diff --git a/app/src/main/java/org/dystopia/email/FragmentAbout.java b/app/src/main/java/org/dystopia/email/FragmentAbout.java
index a72fcc46..ef903790 100644
--- a/app/src/main/java/org/dystopia/email/FragmentAbout.java
+++ b/app/src/main/java/org/dystopia/email/FragmentAbout.java
@@ -26,7 +26,6 @@ import android.content.Intent;
 import android.net.ConnectivityManager;
 import android.os.Build;
 import android.os.Bundle;
-import android.os.PowerManager;
 import android.util.Log;
 import android.view.LayoutInflater;
 import android.view.View;
diff --git a/app/src/main/java/org/dystopia/email/FragmentEx.java b/app/src/main/java/org/dystopia/email/FragmentEx.java
index d93c8f48..36d730e6 100644
--- a/app/src/main/java/org/dystopia/email/FragmentEx.java
+++ b/app/src/main/java/org/dystopia/email/FragmentEx.java
@@ -20,7 +20,6 @@ package org.dystopia.email;
     Copyright 2018-2020, Distopico (dystopia project) <distopico@riseup.net> and contributors
 */
 
-import android.content.Context;
 import android.content.res.Configuration;
 import android.os.Bundle;
 import android.util.Log;
diff --git a/app/src/main/java/org/dystopia/email/FragmentSetup.java b/app/src/main/java/org/dystopia/email/FragmentSetup.java
index 04b499f9..0005079c 100644
--- a/app/src/main/java/org/dystopia/email/FragmentSetup.java
+++ b/app/src/main/java/org/dystopia/email/FragmentSetup.java
@@ -36,7 +36,6 @@ import android.net.ConnectivityManager;
 import android.net.Uri;
 import android.os.Build;
 import android.os.Bundle;
-import android.os.PowerManager;
 import android.preference.PreferenceManager;
 import android.provider.Settings;
 import android.util.Log;
diff --git a/app/src/main/java/org/dystopia/email/JobDaily.java b/app/src/main/java/org/dystopia/email/JobDaily.java
index 89dba059..d09c30b9 100644
--- a/app/src/main/java/org/dystopia/email/JobDaily.java
+++ b/app/src/main/java/org/dystopia/email/JobDaily.java
@@ -17,6 +17,7 @@ package org.dystopia.email;
     along with FairEmail.  If not, see <http://www.gnu.org/licenses/>.
 
     Copyright 2018, Marcel Bokhorst (M66B)
+    Copyright 2018-2020, Distopico (dystopia project) <distopico@riseup.net> and contributors
 */
 
 import android.app.job.JobInfo;
diff --git a/app/src/main/java/org/dystopia/email/ServiceSynchronize.java b/app/src/main/java/org/dystopia/email/ServiceSynchronize.java
index 60581014..64620327 100644
--- a/app/src/main/java/org/dystopia/email/ServiceSynchronize.java
+++ b/app/src/main/java/org/dystopia/email/ServiceSynchronize.java
@@ -33,7 +33,6 @@ import android.content.IntentFilter;
 import android.content.SharedPreferences;
 import android.content.pm.PackageManager;
 import android.database.Cursor;
-import android.graphics.drawable.Icon;
 import android.media.RingtoneManager;
 import android.net.ConnectivityManager;
 import android.net.Network;
diff --git a/checkstyle.xml b/checkstyle.xml
index 45d14692..7c85eea7 100644
--- a/checkstyle.xml
+++ b/checkstyle.xml
@@ -6,7 +6,7 @@
 <module name = "Checker">
     <property name="charset" value="UTF-8"/>
 
-    <property name="severity" value="warning"/>
+    <property name="severity" value="error"/>
 
     <property name="fileExtensions" value="java, properties, xml"/>
     <!-- Checks for whitespace                               -->
@@ -16,24 +16,25 @@
     </module>
 
     <module name="TreeWalker">
-        <module name="OuterTypeFilename"/>
-        <module name="IllegalTokenText">
-            <property name="tokens" value="STRING_LITERAL, CHAR_LITERAL"/>
-            <property name="format"
-             value="\\u00(09|0(a|A)|0(c|C)|0(d|D)|22|27|5(C|c))|\\(0(10|11|12|14|15|42|47)|134)"/>
-            <property name="message"
-             value="Consider using special escape sequence instead of octal value or Unicode escaped value."/>
-        </module>
-        <module name="AvoidEscapedUnicodeCharacters">
-            <property name="allowEscapesForControlCharacters" value="true"/>
-            <property name="allowByTailComment" value="true"/>
-            <property name="allowNonPrintableEscapes" value="true"/>
-        </module>
-        <module name="LineLength">
-            <property name="max" value="100"/>
-            <property name="ignorePattern" value="^package.*|^import.*|a href|href|http://|https://|ftp://"/>
-        </module>
+        <!-- <module name="OuterTypeFilename"/> -->
+        <!-- <module name="IllegalTokenText"> -->
+        <!--     <property name="tokens" value="STRING_LITERAL, CHAR_LITERAL"/> -->
+        <!--     <property name="format" -->
+        <!--      value="\\u00(09|0(a|A)|0(c|C)|0(d|D)|22|27|5(C|c))|\\(0(10|11|12|14|15|42|47)|134)"/> -->
+        <!--     <property name="message" -->
+        <!--      value="Consider using special escape sequence instead of octal value or Unicode escaped value."/> -->
+        <!-- </module> -->
+        <!-- <module name="AvoidEscapedUnicodeCharacters"> -->
+        <!--     <property name="allowEscapesForControlCharacters" value="true"/> -->
+        <!--     <property name="allowByTailComment" value="true"/> -->
+        <!--     <property name="allowNonPrintableEscapes" value="true"/> -->
+        <!-- </module> -->
+        <!-- <module name="LineLength"> -->
+        <!--     <property name="max" value="100"/> -->
+        <!--     <property name="ignorePattern" value="^package.*|^import.*|a href|href|http://|https://|ftp://"/> -->
+        <!-- </module> -->
         <module name="AvoidStarImport"/>
+        <module name="UnusedImports"/>
         <module name="OneTopLevelClass"/>
         <module name="NoLineWrap"/>
         <module name="EmptyBlock">
@@ -41,21 +42,21 @@
             <property name="tokens"
              value="LITERAL_TRY, LITERAL_FINALLY, LITERAL_IF, LITERAL_ELSE, LITERAL_SWITCH"/>
         </module>
-        <module name="NeedBraces"/>
-        <module name="LeftCurly"/>
-        <module name="RightCurly">
-            <property name="id" value="RightCurlySame"/>
-            <property name="tokens"
-             value="LITERAL_TRY, LITERAL_CATCH, LITERAL_FINALLY, LITERAL_IF, LITERAL_ELSE,
-                    LITERAL_DO"/>
-        </module>
-        <module name="RightCurly">
-            <property name="id" value="RightCurlyAlone"/>
-            <property name="option" value="alone"/>
-            <property name="tokens"
-             value="CLASS_DEF, METHOD_DEF, CTOR_DEF, LITERAL_FOR, LITERAL_WHILE, STATIC_INIT,
-                    INSTANCE_INIT"/>
-        </module>
+        <!-- <module name="NeedBraces"/> -->
+        <!-- <module name="LeftCurly"/> -->
+        <!-- <module name="RightCurly"> -->
+        <!--     <property name="id" value="RightCurlySame"/> -->
+        <!--     <property name="tokens" -->
+        <!--      value="LITERAL_TRY, LITERAL_CATCH, LITERAL_FINALLY, LITERAL_IF, LITERAL_ELSE, -->
+        <!--             LITERAL_DO"/> -->
+        <!-- </module> -->
+        <!-- <module name="RightCurly"> -->
+        <!--     <property name="id" value="RightCurlyAlone"/> -->
+        <!--     <property name="option" value="alone"/> -->
+        <!--     <property name="tokens" -->
+        <!--      value="CLASS_DEF, METHOD_DEF, CTOR_DEF, LITERAL_FOR, LITERAL_WHILE, STATIC_INIT, -->
+        <!--             INSTANCE_INIT"/> -->
+        <!-- </module> -->
         <module name="WhitespaceAround">
             <property name="allowEmptyConstructors" value="true"/>
             <property name="allowEmptyMethods" value="true"/>
@@ -66,178 +67,178 @@
             <message key="ws.notPreceded"
              value="WhitespaceAround: ''{0}'' is not preceded with whitespace."/>
         </module>
-        <module name="OneStatementPerLine"/>
-        <module name="MultipleVariableDeclarations"/>
-        <module name="ArrayTypeStyle"/>
-        <module name="MissingSwitchDefault"/>
-        <module name="FallThrough"/>
-        <module name="UpperEll"/>
-        <module name="ModifierOrder"/>
-        <module name="EmptyLineSeparator">
-            <property name="allowNoEmptyLineBetweenFields" value="true"/>
-        </module>
-        <module name="SeparatorWrap">
-            <property name="id" value="SeparatorWrapDot"/>
-            <property name="tokens" value="DOT"/>
-            <property name="option" value="nl"/>
-        </module>
-        <module name="SeparatorWrap">
-            <property name="id" value="SeparatorWrapComma"/>
-            <property name="tokens" value="COMMA"/>
-            <property name="option" value="EOL"/>
-        </module>
-        <module name="SeparatorWrap">
-            <!-- ELLIPSIS is EOL until https://github.com/google/styleguide/issues/258 -->
-            <property name="id" value="SeparatorWrapEllipsis"/>
-            <property name="tokens" value="ELLIPSIS"/>
-            <property name="option" value="EOL"/>
-        </module>
-        <module name="SeparatorWrap">
-            <!-- ARRAY_DECLARATOR is EOL until https://github.com/google/styleguide/issues/259 -->
-            <property name="id" value="SeparatorWrapArrayDeclarator"/>
-            <property name="tokens" value="ARRAY_DECLARATOR"/>
-            <property name="option" value="EOL"/>
-        </module>
-        <module name="SeparatorWrap">
-            <property name="id" value="SeparatorWrapMethodRef"/>
-            <property name="tokens" value="METHOD_REF"/>
-            <property name="option" value="nl"/>
-        </module>
-        <module name="PackageName">
-            <property name="format" value="^[a-z]+(\.[a-z][a-z0-9]*)*$"/>
-            <message key="name.invalidPattern"
-             value="Package name ''{0}'' must match pattern ''{1}''."/>
-        </module>
-        <module name="TypeName">
-            <message key="name.invalidPattern"
-             value="Type name ''{0}'' must match pattern ''{1}''."/>
-        </module>
-        <module name="MemberName">
-            <property name="format" value="^[a-z][a-z0-9][a-zA-Z0-9]*$"/>
-            <message key="name.invalidPattern"
-             value="Member name ''{0}'' must match pattern ''{1}''."/>
-        </module>
-        <module name="ParameterName">
-            <property name="format" value="^[a-z]([a-z0-9][a-zA-Z0-9]*)?$"/>
-            <message key="name.invalidPattern"
-             value="Parameter name ''{0}'' must match pattern ''{1}''."/>
-        </module>
-        <module name="LambdaParameterName">
-            <property name="format" value="^[a-z]([a-z0-9][a-zA-Z0-9]*)?$"/>
-            <message key="name.invalidPattern"
-                     value="Lambda parameter name ''{0}'' must match pattern ''{1}''."/>
-        </module>
-        <module name="CatchParameterName">
-            <property name="format" value="^[a-z]([a-z0-9][a-zA-Z0-9]*)?$"/>
-            <message key="name.invalidPattern"
-             value="Catch parameter name ''{0}'' must match pattern ''{1}''."/>
-        </module>
-        <module name="LocalVariableName">
-            <property name="tokens" value="VARIABLE_DEF"/>
-            <property name="format" value="^[a-z]([a-z0-9][a-zA-Z0-9]*)?$"/>
-            <message key="name.invalidPattern"
-             value="Local variable name ''{0}'' must match pattern ''{1}''."/>
-        </module>
-        <module name="ClassTypeParameterName">
-            <property name="format" value="(^[A-Z][0-9]?)$|([A-Z][a-zA-Z0-9]*[T]$)"/>
-            <message key="name.invalidPattern"
-             value="Class type name ''{0}'' must match pattern ''{1}''."/>
-        </module>
-        <module name="MethodTypeParameterName">
-            <property name="format" value="(^[A-Z][0-9]?)$|([A-Z][a-zA-Z0-9]*[T]$)"/>
-            <message key="name.invalidPattern"
-             value="Method type name ''{0}'' must match pattern ''{1}''."/>
-        </module>
-        <module name="InterfaceTypeParameterName">
-            <property name="format" value="(^[A-Z][0-9]?)$|([A-Z][a-zA-Z0-9]*[T]$)"/>
-            <message key="name.invalidPattern"
-             value="Interface type name ''{0}'' must match pattern ''{1}''."/>
-        </module>
-        <module name="NoFinalizer"/>
-        <module name="GenericWhitespace">
-            <message key="ws.followed"
-             value="GenericWhitespace ''{0}'' is followed by whitespace."/>
-            <message key="ws.preceded"
-             value="GenericWhitespace ''{0}'' is preceded with whitespace."/>
-            <message key="ws.illegalFollow"
-             value="GenericWhitespace ''{0}'' should followed by whitespace."/>
-            <message key="ws.notPreceded"
-             value="GenericWhitespace ''{0}'' is not preceded with whitespace."/>
-        </module>
-        <module name="Indentation">
-            <property name="basicOffset" value="2"/>
-            <property name="braceAdjustment" value="0"/>
-            <property name="caseIndent" value="2"/>
-            <property name="throwsIndent" value="4"/>
-            <property name="lineWrappingIndentation" value="4"/>
-            <property name="arrayInitIndent" value="2"/>
-        </module>
-        <module name="AbbreviationAsWordInName">
-            <property name="ignoreFinal" value="false"/>
-            <property name="allowedAbbreviationLength" value="1"/>
-        </module>
-        <module name="OverloadMethodsDeclarationOrder"/>
-        <module name="VariableDeclarationUsageDistance"/>
-        <module name="CustomImportOrder">
-            <property name="sortImportsInGroupAlphabetically" value="true"/>
-            <property name="separateLineBetweenGroups" value="true"/>
-            <property name="customImportOrderRules" value="STATIC###THIRD_PARTY_PACKAGE"/>
-        </module>
-        <module name="MethodParamPad"/>
-        <module name="NoWhitespaceBefore">
-            <property name="tokens"
-             value="COMMA, SEMI, POST_INC, POST_DEC, DOT, ELLIPSIS, METHOD_REF"/>
-            <property name="allowLineBreaks" value="true"/>
-        </module>
-        <module name="ParenPad"/>
-        <module name="OperatorWrap">
-            <property name="option" value="NL"/>
-            <property name="tokens"
-             value="BAND, BOR, BSR, BXOR, DIV, EQUAL, GE, GT, LAND, LE, LITERAL_INSTANCEOF, LOR,
-                    LT, MINUS, MOD, NOT_EQUAL, PLUS, QUESTION, SL, SR, STAR, METHOD_REF "/>
-        </module>
-        <module name="AnnotationLocation">
-            <property name="id" value="AnnotationLocationMostCases"/>
-            <property name="tokens"
-             value="CLASS_DEF, INTERFACE_DEF, ENUM_DEF, METHOD_DEF, CTOR_DEF"/>
-        </module>
-        <module name="AnnotationLocation">
-            <property name="id" value="AnnotationLocationVariables"/>
-            <property name="tokens" value="VARIABLE_DEF"/>
-            <property name="allowSamelineMultipleAnnotations" value="true"/>
-        </module>
-        <module name="NonEmptyAtclauseDescription"/>
-        <module name="JavadocTagContinuationIndentation"/>
-        <module name="SummaryJavadoc">
-            <property name="forbiddenSummaryFragments"
-             value="^@return the *|^This method returns |^A [{]@code [a-zA-Z0-9]+[}]( is a )"/>
-        </module>
-        <module name="JavadocParagraph"/>
-        <module name="AtclauseOrder">
-            <property name="tagOrder" value="@param, @return, @throws, @deprecated"/>
-            <property name="target"
-             value="CLASS_DEF, INTERFACE_DEF, ENUM_DEF, METHOD_DEF, CTOR_DEF, VARIABLE_DEF"/>
-        </module>
-        <module name="JavadocMethod">
-            <property name="scope" value="public"/>
-            <property name="allowMissingParamTags" value="true"/>
-            <property name="allowMissingThrowsTags" value="true"/>
-            <property name="allowMissingReturnTag" value="true"/>
-            <property name="minLineCount" value="2"/>
-            <property name="allowedAnnotations" value="Override, Test"/>
-            <property name="allowThrowsTagsForSubclasses" value="true"/>
-        </module>
-        <module name="MethodName">
-            <property name="format" value="^[a-z][a-z0-9][a-zA-Z0-9_]*$"/>
-            <message key="name.invalidPattern"
-             value="Method name ''{0}'' must match pattern ''{1}''."/>
-        </module>
-        <module name="SingleLineJavadoc">
-            <property name="ignoreInlineTags" value="false"/>
-        </module>
-        <module name="EmptyCatchBlock">
-            <property name="exceptionVariableName" value="expected"/>
-        </module>
-        <module name="CommentsIndentation"/>
+        <!-- <module name="OneStatementPerLine"/> -->
+        <!-- <module name="MultipleVariableDeclarations"/> -->
+        <!-- <module name="ArrayTypeStyle"/> -->
+        <!-- <module name="MissingSwitchDefault"/> -->
+        <!-- <module name="FallThrough"/> -->
+        <!-- <module name="UpperEll"/> -->
+        <!-- <module name="ModifierOrder"/> -->
+        <!-- <module name="EmptyLineSeparator"> -->
+        <!--     <property name="allowNoEmptyLineBetweenFields" value="true"/> -->
+        <!-- </module> -->
+        <!-- <module name="SeparatorWrap"> -->
+        <!--     <property name="id" value="SeparatorWrapDot"/> -->
+        <!--     <property name="tokens" value="DOT"/> -->
+        <!--     <property name="option" value="nl"/> -->
+        <!-- </module> -->
+        <!-- <module name="SeparatorWrap"> -->
+        <!--     <property name="id" value="SeparatorWrapComma"/> -->
+        <!--     <property name="tokens" value="COMMA"/> -->
+        <!--     <property name="option" value="EOL"/> -->
+        <!-- </module> -->
+        <!-- <module name="SeparatorWrap"> -->
+        <!--     <!-\- ELLIPSIS is EOL until https://github.com/google/styleguide/issues/258 -\-> -->
+        <!--     <property name="id" value="SeparatorWrapEllipsis"/> -->
+        <!--     <property name="tokens" value="ELLIPSIS"/> -->
+        <!--     <property name="option" value="EOL"/> -->
+        <!-- </module> -->
+        <!-- <module name="SeparatorWrap"> -->
+        <!--     <!-\- ARRAY_DECLARATOR is EOL until https://github.com/google/styleguide/issues/259 -\-> -->
+        <!--     <property name="id" value="SeparatorWrapArrayDeclarator"/> -->
+        <!--     <property name="tokens" value="ARRAY_DECLARATOR"/> -->
+        <!--     <property name="option" value="EOL"/> -->
+        <!-- </module> -->
+        <!-- <module name="SeparatorWrap"> -->
+        <!--     <property name="id" value="SeparatorWrapMethodRef"/> -->
+        <!--     <property name="tokens" value="METHOD_REF"/> -->
+        <!--     <property name="option" value="nl"/> -->
+        <!-- </module> -->
+        <!-- <module name="PackageName"> -->
+        <!--     <property name="format" value="^[a-z]+(\.[a-z][a-z0-9]*)*$"/> -->
+        <!--     <message key="name.invalidPattern" -->
+        <!--      value="Package name ''{0}'' must match pattern ''{1}''."/> -->
+        <!-- </module> -->
+        <!-- <module name="TypeName"> -->
+        <!--     <message key="name.invalidPattern" -->
+        <!--      value="Type name ''{0}'' must match pattern ''{1}''."/> -->
+        <!-- </module> -->
+        <!-- <module name="MemberName"> -->
+        <!--     <property name="format" value="^[a-z][a-z0-9][a-zA-Z0-9]*$"/> -->
+        <!--     <message key="name.invalidPattern" -->
+        <!--      value="Member name ''{0}'' must match pattern ''{1}''."/> -->
+        <!-- </module> -->
+        <!-- <module name="ParameterName"> -->
+        <!--     <property name="format" value="^[a-z]([a-z0-9][a-zA-Z0-9]*)?$"/> -->
+        <!--     <message key="name.invalidPattern" -->
+        <!--      value="Parameter name ''{0}'' must match pattern ''{1}''."/> -->
+        <!-- </module> -->
+        <!-- <module name="LambdaParameterName"> -->
+        <!--     <property name="format" value="^[a-z]([a-z0-9][a-zA-Z0-9]*)?$"/> -->
+        <!--     <message key="name.invalidPattern" -->
+        <!--              value="Lambda parameter name ''{0}'' must match pattern ''{1}''."/> -->
+        <!-- </module> -->
+        <!-- <module name="CatchParameterName"> -->
+        <!--     <property name="format" value="^[a-z]([a-z0-9][a-zA-Z0-9]*)?$"/> -->
+        <!--     <message key="name.invalidPattern" -->
+        <!--      value="Catch parameter name ''{0}'' must match pattern ''{1}''."/> -->
+        <!-- </module> -->
+        <!-- <module name="LocalVariableName"> -->
+        <!--     <property name="tokens" value="VARIABLE_DEF"/> -->
+        <!--     <property name="format" value="^[a-z]([a-z0-9][a-zA-Z0-9]*)?$"/> -->
+        <!--     <message key="name.invalidPattern" -->
+        <!--      value="Local variable name ''{0}'' must match pattern ''{1}''."/> -->
+        <!-- </module> -->
+        <!-- <module name="ClassTypeParameterName"> -->
+        <!--     <property name="format" value="(^[A-Z][0-9]?)$|([A-Z][a-zA-Z0-9]*[T]$)"/> -->
+        <!--     <message key="name.invalidPattern" -->
+        <!--      value="Class type name ''{0}'' must match pattern ''{1}''."/> -->
+        <!-- </module> -->
+        <!-- <module name="MethodTypeParameterName"> -->
+        <!--     <property name="format" value="(^[A-Z][0-9]?)$|([A-Z][a-zA-Z0-9]*[T]$)"/> -->
+        <!--     <message key="name.invalidPattern" -->
+        <!--      value="Method type name ''{0}'' must match pattern ''{1}''."/> -->
+        <!-- </module> -->
+        <!-- <module name="InterfaceTypeParameterName"> -->
+        <!--     <property name="format" value="(^[A-Z][0-9]?)$|([A-Z][a-zA-Z0-9]*[T]$)"/> -->
+        <!--     <message key="name.invalidPattern" -->
+        <!--      value="Interface type name ''{0}'' must match pattern ''{1}''."/> -->
+        <!-- </module> -->
+        <!-- <module name="NoFinalizer"/> -->
+        <!-- <module name="GenericWhitespace"> -->
+        <!--     <message key="ws.followed" -->
+        <!--      value="GenericWhitespace ''{0}'' is followed by whitespace."/> -->
+        <!--     <message key="ws.preceded" -->
+        <!--      value="GenericWhitespace ''{0}'' is preceded with whitespace."/> -->
+        <!--     <message key="ws.illegalFollow" -->
+        <!--      value="GenericWhitespace ''{0}'' should followed by whitespace."/> -->
+        <!--     <message key="ws.notPreceded" -->
+        <!--      value="GenericWhitespace ''{0}'' is not preceded with whitespace."/> -->
+        <!-- </module> -->
+        <!-- <module name="Indentation"> -->
+        <!--     <property name="basicOffset" value="2"/> -->
+        <!--     <property name="braceAdjustment" value="0"/> -->
+        <!--     <property name="caseIndent" value="2"/> -->
+        <!--     <property name="throwsIndent" value="4"/> -->
+        <!--     <property name="lineWrappingIndentation" value="4"/> -->
+        <!--     <property name="arrayInitIndent" value="2"/> -->
+        <!-- </module> -->
+        <!-- <module name="AbbreviationAsWordInName"> -->
+        <!--     <property name="ignoreFinal" value="false"/> -->
+        <!--     <property name="allowedAbbreviationLength" value="1"/> -->
+        <!-- </module> -->
+        <!-- <module name="OverloadMethodsDeclarationOrder"/> -->
+        <!-- <module name="VariableDeclarationUsageDistance"/> -->
+        <!-- <module name="CustomImportOrder"> -->
+        <!--     <property name="sortImportsInGroupAlphabetically" value="true"/> -->
+        <!--     <property name="separateLineBetweenGroups" value="true"/> -->
+        <!--     <property name="customImportOrderRules" value="STATIC###THIRD_PARTY_PACKAGE"/> -->
+        <!-- </module> -->
+        <!-- <module name="MethodParamPad"/> -->
+        <!-- <module name="NoWhitespaceBefore"> -->
+        <!--     <property name="tokens" -->
+        <!--      value="COMMA, SEMI, POST_INC, POST_DEC, DOT, ELLIPSIS, METHOD_REF"/> -->
+        <!--     <property name="allowLineBreaks" value="true"/> -->
+        <!-- </module> -->
+        <!-- <module name="ParenPad"/> -->
+        <!-- <module name="OperatorWrap"> -->
+        <!--     <property name="option" value="NL"/> -->
+        <!--     <property name="tokens" -->
+        <!--      value="BAND, BOR, BSR, BXOR, DIV, EQUAL, GE, GT, LAND, LE, LITERAL_INSTANCEOF, LOR, -->
+        <!--             LT, MINUS, MOD, NOT_EQUAL, PLUS, QUESTION, SL, SR, STAR, METHOD_REF "/> -->
+        <!-- </module> -->
+        <!-- <module name="AnnotationLocation"> -->
+        <!--     <property name="id" value="AnnotationLocationMostCases"/> -->
+        <!--     <property name="tokens" -->
+        <!--      value="CLASS_DEF, INTERFACE_DEF, ENUM_DEF, METHOD_DEF, CTOR_DEF"/> -->
+        <!-- </module> -->
+        <!-- <module name="AnnotationLocation"> -->
+        <!--     <property name="id" value="AnnotationLocationVariables"/> -->
+        <!--     <property name="tokens" value="VARIABLE_DEF"/> -->
+        <!--     <property name="allowSamelineMultipleAnnotations" value="true"/> -->
+        <!-- </module> -->
+        <!-- <module name="NonEmptyAtclauseDescription"/> -->
+        <!-- <module name="JavadocTagContinuationIndentation"/> -->
+        <!-- <module name="SummaryJavadoc"> -->
+        <!--     <property name="forbiddenSummaryFragments" -->
+        <!--      value="^@return the *|^This method returns |^A [{]@code [a-zA-Z0-9]+[}]( is a )"/> -->
+        <!-- </module> -->
+        <!-- <module name="JavadocParagraph"/> -->
+        <!-- <module name="AtclauseOrder"> -->
+        <!--     <property name="tagOrder" value="@param, @return, @throws, @deprecated"/> -->
+        <!--     <property name="target" -->
+        <!--      value="CLASS_DEF, INTERFACE_DEF, ENUM_DEF, METHOD_DEF, CTOR_DEF, VARIABLE_DEF"/> -->
+        <!-- </module> -->
+        <!-- <module name="JavadocMethod"> -->
+        <!--     <property name="scope" value="public"/> -->
+        <!--     <property name="allowMissingParamTags" value="true"/> -->
+        <!--     <property name="allowMissingThrowsTags" value="true"/> -->
+        <!--     <property name="allowMissingReturnTag" value="true"/> -->
+        <!--     <property name="minLineCount" value="2"/> -->
+        <!--     <property name="allowedAnnotations" value="Override, Test"/> -->
+        <!--     <property name="allowThrowsTagsForSubclasses" value="true"/> -->
+        <!-- </module> -->
+        <!-- <module name="MethodName"> -->
+        <!--     <property name="format" value="^[a-z][a-z0-9][a-zA-Z0-9_]*$"/> -->
+        <!--     <message key="name.invalidPattern" -->
+        <!--      value="Method name ''{0}'' must match pattern ''{1}''."/> -->
+        <!-- </module> -->
+        <!-- <module name="SingleLineJavadoc"> -->
+        <!--     <property name="ignoreInlineTags" value="false"/> -->
+        <!-- </module> -->
+        <!-- <module name="EmptyCatchBlock"> -->
+        <!--     <property name="exceptionVariableName" value="expected"/> -->
+        <!-- </module> -->
+        <!-- <module name="CommentsIndentation"/> -->
     </module>
 </module>