returns the first stanza / packet extension that matches the specified element name and namespace , or null if it does n't exist . concode_field_sep List<ExtensionElement> extensions concode_elem_sep Map<String,String> descriptiveTexts concode_elem_sep String textNamespace concode_field_sep B getThis concode_elem_sep B setDescriptiveTexts concode_elem_sep String getDescriptiveText concode_elem_sep String getDescriptiveText concode_elem_sep void addDescriptiveTextsAndExtensions concode_elem_sep B setTextNamespace concode_elem_sep B setDescriptiveEnText concode_elem_sep B addExtension concode_elem_sep B setExtensions
PE function ( String arg0 , String arg1 ) { return PacketUtil . extensionElementFrom ( extensions , arg0 , arg1 ) ; }