#fixed code
                                private MappingMethod getBeanMappingMethod(List<Method> methods, Method method,
                                               ReportingPolicy unmappedTargetPolicy) {
        List<PropertyMapping> propertyMappings = new ArrayList<PropertyMapping>();
        Set<String> mappedTargetProperties = new HashSet<String>();

        Map<String, Mapping> mappings = method.getMappings();

        TypeElement resultTypeElement = elementUtils.getTypeElement( method.getResultType().getCanonicalName() );
        TypeElement parameterElement = elementUtils.getTypeElement(
            method.getSingleSourceParameter()
                .getType()
                .getCanonicalName()
        );

        List<ExecutableElement> sourceGetters = Filters.getterMethodsIn(
            elementUtils.getAllMembers( parameterElement )
        );
        List<ExecutableElement> targetSetters = Filters.setterMethodsIn(
            elementUtils.getAllMembers( resultTypeElement )
        );

        Set<String> sourceProperties = executables.getPropertyNames(
            Filters.getterMethodsIn( sourceGetters )
        );
        Set<String> targetProperties = executables.getPropertyNames(
            Filters.setterMethodsIn( targetSetters )
        );

        reportErrorIfMappedPropertiesDontExist( method, sourceProperties, targetProperties );

        for ( ExecutableElement getterMethod : sourceGetters ) {
            String sourcePropertyName = executables.getPropertyName( getterMethod );
            Mapping mapping = mappings.get( sourcePropertyName );
            String dateFormat = mapping != null ? mapping.getDateFormat() : null;

            for ( ExecutableElement setterMethod : targetSetters ) {
                String targetPropertyName = executables.getPropertyName( setterMethod );

                if ( targetPropertyName.equals( mapping != null ? mapping.getTargetName() : sourcePropertyName ) ) {
                    PropertyMapping property = getPropertyMapping(
                        methods,
                        method,
                        getterMethod,
                        setterMethod,
                        dateFormat
                    );

                    propertyMappings.add( property );

                    mappedTargetProperties.add( targetPropertyName );
                }
            }
        }

        reportErrorForUnmappedTargetPropertiesIfRequired(
            method,
            unmappedTargetPolicy,
            targetProperties,
            mappedTargetProperties
        );

        return new BeanMappingMethod( method, propertyMappings );
    }
#vulnerable code 
                                private MappingMethod getBeanMappingMethod(List<Method> methods, Method method,
                                               ReportingPolicy unmappedTargetPolicy) {
        List<PropertyMapping> propertyMappings = new ArrayList<PropertyMapping>();
        Set<String> mappedTargetProperties = new HashSet<String>();

        Map<String, Mapping> mappings = method.getMappings();

        TypeElement resultTypeElement = elementUtils.getTypeElement( method.getResultType().getCanonicalName() );
        TypeElement parameterElement = elementUtils.getTypeElement( method.getSingleSourceType().getCanonicalName() );

        List<ExecutableElement> sourceGetters = Filters.getterMethodsIn(
            elementUtils.getAllMembers( parameterElement )
        );
        List<ExecutableElement> targetSetters = Filters.setterMethodsIn(
            elementUtils.getAllMembers( resultTypeElement )
        );

        Set<String> sourceProperties = executables.getPropertyNames(
            Filters.getterMethodsIn( sourceGetters )
        );
        Set<String> targetProperties = executables.getPropertyNames(
            Filters.setterMethodsIn( targetSetters )
        );

        reportErrorIfMappedPropertiesDontExist( method, sourceProperties, targetProperties );

        for ( ExecutableElement getterMethod : sourceGetters ) {
            String sourcePropertyName = executables.getPropertyName( getterMethod );
            Mapping mapping = mappings.get( sourcePropertyName );
            String dateFormat = mapping != null ? mapping.getDateFormat() : null;

            for ( ExecutableElement setterMethod : targetSetters ) {
                String targetPropertyName = executables.getPropertyName( setterMethod );

                if ( targetPropertyName.equals( mapping != null ? mapping.getTargetName() : sourcePropertyName ) ) {
                    PropertyMapping property = getPropertyMapping(
                        methods,
                        method,
                        getterMethod,
                        setterMethod,
                        dateFormat
                    );

                    propertyMappings.add( property );

                    mappedTargetProperties.add( targetPropertyName );
                }
            }
        }

        reportErrorForUnmappedTargetPropertiesIfRequired(
            method,
            unmappedTargetPolicy,
            targetProperties,
            mappedTargetProperties
        );

        return new BeanMappingMethod(
            method.getName(),
            method.getParameters(),
            method.getSourceParameters(),
            method.getResultType(),
            method.getResultName(),
            method.getReturnType(),
            propertyMappings
        );
    } 
                            #location 9 
                            #vulnerability type NULL_DEREFERENCE