object model element buffer sb buffer sb append notat util java gener visibl model element sb append notat util java gener scope model element sb append notat util java gener changeabl model element object type model facad type model element object multi model facad multipl model element handl multipl need type actual api gener buggi gener multipl correctli need attribut type multi model facad upper multi sb append notat util java gener classifi ref type append model facad data type type sb append notat util java gener classifi ref type append sb append java util vector sb append model facad model element object init model facad initi valu model element init init str notat util java gener express init trim init str length sb append append init str sb 