diff --git a/se1_check.xml b/se1_check.xml
deleted file mode 100644
index dbc43d6dbd2b9947f4b9fddd1739e5472a2b029a..0000000000000000000000000000000000000000
--- a/se1_check.xml
+++ /dev/null
@@ -1,289 +0,0 @@
-<?xml version="1.0"?>
-<!DOCTYPE module PUBLIC
-        "-//Checkstyle//DTD Checkstyle Configuration 1.3//EN"
-        "https://checkstyle.org/dtds/configuration_1_3.dtd">
-
-<module name = "Checker">
-    <property name="charset" value="UTF-8"/>
-    <property name="localeLanguage" value="de"/>
-
-    <property name="severity" value="warning"/>
-
-    <property name="fileExtensions" value="java"/>
-
-    <module name="LineLength">
-        <property name="fileExtensions" value="java"/>
-        <property name="max" value="100"/>
-        <property name="ignorePattern" value="^package.*|^import.*|a href|href|http://|https://|ftp://"/>
-    </module>
-
-    <module name="TreeWalker">
-        <module name="EmptyBlock">
-            <property name="option" value="TEXT"/>
-            <property name="tokens"
-                      value="LITERAL_TRY, LITERAL_FINALLY, LITERAL_IF, LITERAL_ELSE, LITERAL_SWITCH"/>
-        </module>
-        <module name="NeedBraces">
-            <property name="tokens"
-                      value="LITERAL_DO, LITERAL_ELSE, LITERAL_FOR, LITERAL_IF, LITERAL_WHILE"/>
-        </module>
-        <module name="LeftCurly">
-            <property name="option" value="nl"/>
-            <property name="tokens"
-                      value="ANNOTATION_DEF, CLASS_DEF, CTOR_DEF, ENUM_CONSTANT_DEF, ENUM_DEF,
-                    INTERFACE_DEF, LAMBDA, LITERAL_CASE, LITERAL_CATCH, LITERAL_DEFAULT,
-                    LITERAL_DO, LITERAL_ELSE, LITERAL_FINALLY, LITERAL_FOR, LITERAL_IF,
-                    LITERAL_SWITCH, LITERAL_SYNCHRONIZED, LITERAL_TRY, LITERAL_WHILE, METHOD_DEF,
-                    OBJBLOCK, STATIC_INIT, RECORD_DEF, COMPACT_CTOR_DEF"/>
-        </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, ANNOTATION_DEF, ENUM_DEF, INTERFACE_DEF, RECORD_DEF,
-                    COMPACT_CTOR_DEF, LITERAL_TRY, LITERAL_CATCH, LITERAL_FINALLY, LITERAL_IF, LITERAL_ELSE,
-            LITERAL_DO"/>
-        </module>
-        <module name="WhitespaceAfter">
-            <property name="tokens"
-                      value="COMMA, SEMI, TYPECAST, LITERAL_IF, LITERAL_ELSE,
-                    LITERAL_WHILE, LITERAL_DO, LITERAL_FOR, DO_WHILE"/>
-        </module>
-        <module name="WhitespaceAround">
-            <property name="allowEmptyConstructors" value="true"/>
-            <property name="allowEmptyLambdas" value="true"/>
-            <property name="allowEmptyMethods" value="true"/>
-            <property name="allowEmptyTypes" value="true"/>
-            <property name="allowEmptyLoops" value="true"/>
-            <property name="ignoreEnhancedForColon" value="false"/>
-            <property name="tokens"
-                      value="ASSIGN, BAND, BAND_ASSIGN, BOR, BOR_ASSIGN, BSR, BSR_ASSIGN, BXOR,
-                    BXOR_ASSIGN, COLON, DIV, DIV_ASSIGN, DO_WHILE, EQUAL, GE, GT, LAMBDA, LAND,
-                    LCURLY, LE, LITERAL_CATCH, LITERAL_DO, LITERAL_ELSE, LITERAL_FINALLY,
-                    LITERAL_FOR, LITERAL_IF, LITERAL_RETURN, LITERAL_SWITCH, LITERAL_SYNCHRONIZED,
-                    LITERAL_TRY, LITERAL_WHILE, LOR, LT, MINUS, MINUS_ASSIGN, MOD, MOD_ASSIGN,
-                    NOT_EQUAL, PLUS, PLUS_ASSIGN, QUESTION, RCURLY, SL, SLIST, SL_ASSIGN, SR,
-                    SR_ASSIGN, STAR, STAR_ASSIGN, LITERAL_ASSERT, TYPE_EXTENSION_AND"/>
-            <message key="ws.notFollowed"
-                     value="Hinter ''{0}'' steht kein Leerzeichen."/>
-            <message key="ws.notPreceded"
-                     value="Vor ''{0}'' muss ein Leerzeichen stehen."/>
-        </module>
-        <module name="OneStatementPerLine"/>
-        <module name="MultipleVariableDeclarations"/>
-        <module name="ArrayTypeStyle"/>
-        <module name="MissingSwitchDefault"/>
-        <module name="MissingCtor"/>
-        <module name="FallThrough"/>
-        <module name="UpperEll"/>
-        <module name="ModifierOrder"/>
-        <module name="EmptyLineSeparator">
-            <property name="tokens"
-                      value="PACKAGE_DEF, IMPORT, STATIC_IMPORT, CLASS_DEF, INTERFACE_DEF, ENUM_DEF,
-                    STATIC_INIT, INSTANCE_INIT, METHOD_DEF, CTOR_DEF, VARIABLE_DEF, RECORD_DEF,
-                    COMPACT_CTOR_DEF"/>
-            <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/259 -->
-            <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/258 -->
-            <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="TypeName">
-            <property name="tokens" value="CLASS_DEF, INTERFACE_DEF, ENUM_DEF,
-                    ANNOTATION_DEF, RECORD_DEF"/>
-            <message key="name.invalidPattern"
-                     value="Der Name ''{0}'' folgt nicht den Quelltextkonventionen."/>
-        </module>
-        <module name="ConstantName">
-            <property name="format" value="^[A-Z][A-Z0-9_]*[A-Z0-9]?$"/>
-            <message key="name.invalidPattern"
-                     value="Der Name der Konstanten ''{0}'' folgt nicht den Quelltextkonventionen."/>
-        </module>
-        <module name="MemberName">
-            <property name="format" value="^_[a-z][a-z0-9][a-zA-Z0-9]*$"/>
-            <message key="name.invalidPattern"
-                     value="Der Name des Zustandsfeldes ''{0}'' folgt nicht den Quelltextkonventionen."/>
-        </module>
-        <module name="ParameterName">
-            <property name="format" value="^[a-z]([a-z0-9][a-zA-Z0-9]*)?$"/>
-            <message key="name.invalidPattern"
-                     value="Der Name des Parameters ''{0}'' folgt nicht den Quelltextkonventionen."/>
-        </module>
-        <module name="LambdaParameterName">
-            <property name="format" value="^[a-z]([a-z0-9][a-zA-Z0-9]*)?$"/>
-            <message key="name.invalidPattern"
-                     value="Der Name des Lambda-Parameters ''{0}'' folgt nicht den Quelltextkonventionen."/>
-        </module>
-        <module name="CatchParameterName">
-            <property name="format" value="^[a-z]([a-z0-9][a-zA-Z0-9]*)?$"/>
-            <message key="name.invalidPattern"
-                     value="Der Name des Catch-Parameters ''{0}'' folgt nicht den Quelltextkonventionen."/>
-        </module>
-        <module name="LocalVariableName">
-            <property name="format" value="^[a-z]([a-z0-9][a-zA-Z0-9]*)?$"/>
-            <message key="name.invalidPattern"
-                     value="Der Name der lokalen Variable ''{0}'' folgt nicht den Quelltextkonventionen."/>
-        </module>
-        <module name="PatternVariableName">
-            <property name="format" value="^[a-z]([a-z0-9][a-zA-Z0-9]*)?$"/>
-            <message key="name.invalidPattern"
-                     value="Der Name der Pattern-Variable ''{0}'' folgt nicht den Quelltextkonventionen."/>
-        </module>
-        <!--
-        <module name="ClassTypeParameterName">
-            <property name="format" value="(^[A-Z][0-9]?)$|([A-Z][a-zA-Z0-9]*[T]$)"/>
-            <message key="name.invalidPattern"
-                     value="Class type name ''{0}'' must match pattern ''{1}''."/>
-        </module>
-        <module name="RecordComponentName">
-            <property name="format" value="^[a-z]([a-z0-9][a-zA-Z0-9]*)?$"/>
-            <message key="name.invalidPattern"
-                     value="Record component name ''{0}'' must match pattern ''{1}''."/>
-        </module>
-        <module name="RecordTypeParameterName">
-            <property name="format" value="(^[A-Z][0-9]?)$|([A-Z][a-zA-Z0-9]*[T]$)"/>
-            <message key="name.invalidPattern"
-                     value="Record 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" />
-        <module name="HiddenField" />
-        <module name="Indentation">
-            <property name="basicOffset" value="4"/>
-            <property name="braceAdjustment" value="0"/>
-            <property name="caseIndent" value="4"/>
-            <property name="throwsIndent" value="4"/>
-            <property name="lineWrappingIndentation" value="4"/>
-            <property name="arrayInitIndent" value="4"/>
-        </module>
-        <module name="NoWhitespaceBeforeCaseDefaultColon"/>
-        <module name="MethodParamPad">
-            <property name="tokens"
-                      value="CTOR_DEF, LITERAL_NEW, METHOD_CALL, METHOD_DEF,
-                    SUPER_CTOR_CALL, ENUM_CONSTANT_DEF, RECORD_DEF"/>
-        </module>
-        <module name="NoWhitespaceBefore">
-            <property name="tokens"
-                      value="COMMA, SEMI, POST_INC, POST_DEC, DOT,
-                    LABELED_STAT, METHOD_REF"/>
-            <property name="allowLineBreaks" value="true"/>
-        </module>
-        <module name="ParenPad">
-            <property name="tokens"
-                      value="ANNOTATION, ANNOTATION_FIELD_DEF, CTOR_CALL, CTOR_DEF, DOT, ENUM_CONSTANT_DEF,
-                    EXPR, LITERAL_CATCH, LITERAL_DO, LITERAL_FOR, LITERAL_IF, LITERAL_NEW,
-                    LITERAL_SWITCH, LITERAL_SYNCHRONIZED, LITERAL_WHILE, METHOD_CALL,
-                    METHOD_DEF, QUESTION, RESOURCE_SPECIFICATION, SUPER_CTOR_CALL, LAMBDA,
-                    RECORD_DEF"/>
-        </module>
-        <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,
-                    TYPE_EXTENSION_AND "/>
-        </module>
-        <module name="AnnotationLocation">
-            <property name="id" value="AnnotationLocationMostCases"/>
-            <property name="tokens"
-                      value="CLASS_DEF, INTERFACE_DEF, ENUM_DEF, METHOD_DEF, CTOR_DEF,
-                      RECORD_DEF, COMPACT_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="InvalidJavadocPosition"/>
-        <module name="JavadocTagContinuationIndentation"/>
-        <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="accessModifiers" value="package, public"/>
-            <property name="allowedAnnotations" value="Override, Test"/>
-            <property name="allowMissingParamTags" value="false" />
-            <property name="allowMissingReturnTag" value="false" />
-            <property name="tokens" value="METHOD_DEF, CTOR_DEF, ANNOTATION_FIELD_DEF, COMPACT_CTOR_DEF"/>
-        </module>
-        <module name="JavadocContentLocationCheck">
-            <property name="location" value="second_line" />
-        </module>
-        <module name="MissingJavadocMethod">
-            <property name="scope" value="package"/>
-            <property name="allowedAnnotations" value="Override, Test"/>
-            <property name="tokens" value="METHOD_DEF, CTOR_DEF, ANNOTATION_FIELD_DEF,
-                                   COMPACT_CTOR_DEF"/>
-        </module>
-        <module name="JavadocType">
-            <property name="authorFormat" value="^.+$" />
-            <property name="versionFormat" value="^.+$" />
-            <message key="type.tagFormat" value="Der @version oder @author Tag fehlen im Javadoc-Kommentar." />
-        </module>
-        <module name="MissingJavadocType">
-            <property name="scope" value="package"/>
-            <property name="tokens"
-                      value="CLASS_DEF, INTERFACE_DEF, ENUM_DEF,
-                      RECORD_DEF, ANNOTATION_DEF"/>
-        </module>
-        <module name="VisibilityModifier">
-            <property name="packageAllowed" value="false"/>
-            <property name="protectedAllowed" value="false"/>
-        </module>
-        <module name="MethodName">
-            <property name="format" value="^[a-z][a-z0-9][a-zA-Z0-9_]*$"/>
-            <message key="name.invalidPattern"
-                     value="Der Name der Methode ''{0}'' folgt nicht den Quelltextkonventionen"/>
-        </module>
-        <module name="SingleLineJavadoc"/>
-        <module name="EmptyCatchBlock">
-            <property name="exceptionVariableName" value="expected"/>
-        </module>
-        <module name="CommentsIndentation">
-            <property name="tokens" value="SINGLE_LINE_COMMENT, BLOCK_COMMENT_BEGIN"/>
-        </module>
-        <module name="SuppressionCommentFilter">
-            <property name="offCommentFormat" value="STOP CHECKSTYLE"/>
-            <property name="onCommentFormat" value="START CHECKSTYLE"/>
-        </module>
-    </module>
-</module>
\ No newline at end of file