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This code assumes that we created a JAXB binding file in a default generated location. If you don't put a package name in to the create JAXB binding dialog on creation, Netbeans will put the files in the "generated" subfolder. If you already have files in the "generated" folder, for example from landingreport.xsd, those files will be deleted. If you try to create an unmarshaller with "generated" subfolder and have codes.xsd files rather than landingreport.xsd files, you will get odd behaviors when unmarshalling a landingreport.xsd defined object.

For example, if you attempt to unmarshall a xml string into a LandingReportInfo Object, you will get an error like:
javax.xml.bind.UnmarshalException: unexpected element (uri:"", local:"landing_report_info"). Expected elements are <{}address>,<{}adfg_region>,<{}admin>,<{}agency>,<{}agency_effort>,<{}agency_entered_stat_area>,<{}agency_stat_area>,<{}aleut_is_sable_rock_fishery>,<{}announcement_id>,<{}authorized_operation>,<{}authorized_user>,<{}avg_gear_depth>,<{}avg_sea_depth>,<{}background>,<{}batch_number>,<{}batch_office_code>,<{}batch_year>,<{}bed_code>,<{}bed_def>,<{}bedcode_required>,<{}begin_buoy_number>,<{}begin_depth>,<{}begin_latitude>,<{}begin_longitude>,<{}bird_avoidance_gear>,<{}block>,<{}build_number>,<{}business_name>,<{}buying_station_name>,<{}can_be_parent>,<{}cfec_fishery_def>,<{}cfec_id>,<{}cfec_permit>,<{}cfec_salmon_area>,<{}charter_activity_flag>,<{}checkin_date>,<{}checkout_date>,<{}child_operations>,<{}chill_def>,<{}chill_type>,<{}city>,<{}coar_region>,<{}coast_guard_number>,<{}coded_comment>,<{}codes>,<{}color>,<{}column_name>,<{}comment_code>,<{}comment_date>,<{}comment_def>,<{}comment_text>,<{}company>,<{}component>,<{}condition_code>,<{}condition_def>,<{}constant>,<{}copy_mail_address>,<{}corrective_action>,<{}count>,<{}count_required>,<{}country>,<{}crab_cdq_number>,<{}crew_size>,<{}cruise_number>,<{}date_fishing_began>,<{}date_of_landing>,<{}days_fished>,<{}deadloss_weight>,<{}default_date_fishing_began>,<{}default_fishing_period>,<{}default_nearest_bay_or_headland>,<{}default_number_of_fish_tickets_to_print>,<{}default_number_of_tally_sheets_to_print>,<{}default_operation_id>,<{}default_stat_area>,<{}default_time_of_landing>,<{}delivery_latitude>,<{}delivery_longitude>,<{}delivery_port_region>,<{}delivery_time>,<{}delivery_type>,<{}deploy_entry_seq>,<{}depth_unit_of_measure>,<{}description>,<{}destination_mail_address>,<{}diagnostic_event_id>,<{}disabled>,<{}discard_report>,<{}discard_report_def>,<{}display_on_login>,<{}disposition_code>,<{}disposition_def>,<{}dock_delivery>,<{}document_name>,<{}dual_permit>,<{}dungeness_crab_mgmt_district>,<{}duration>,<{}effectivity_date>,<{}effectivity_end_date>,<{}effort>,<{}effort_required>,<{}effort_unit_of_measure>,<{}email>,<{}email_agency_users>,<{}email_client>,<{}email_processor_users>,<{}email_schema_users>,<{}email_system>,<{}end_buoy_number>,<{}end_datetime>,<{}end_depth>,<{}end_entry_seq>,<{}end_latitude>,<{}end_longitude>,<{}entry_seq>,<{}entry_time>,<{}entry_type>,<{}event>,<{}expanded_fishery_id>,<{}export_directory>,<{}failed_login_attempts>,<{}fax>,<{}fed_area>,<{}federal_crab_permit_number>,<{}federal_gear_code>,<{}federal_permit_number>,<{}federal_processor_number>,<{}file_name>,<{}file_needed>,<{}final_report_visibility>,<{}first_name>,<{}fish_ticket_number>,<{}fish_ticket_number_request_date>,<{}fish_ticket_number_request_increment>,<{}fish_ticket_number_threshold>,<{}fish_ticket_password>,<{}fish_ticket_seq>,<{}fish_ticket_userid>,<{}fishery>,<{}fishery_area>,<{}fishery_name>,<{}fishing_activity_flag>,<{}fishing_period>,<{}floating>,<{}fmp_area>,<{}fmp_area_def>,<{}freezer_flag>,<{}from_build_number>,<{}from_mail_address>,<{}from_version_label>,<{}fuel>,<{}gear>,<{}gear_def>,<{}gear_deployment_time>,<{}gear_id>,<{}gear_lost>,<{}gear_retrieval_time>,<{}gear_set>,<{}gear_type>,<{}generate_tally_with_ticket>,<{}gross_tonnage>,<{}groundfish_mgmt_area>,<{}groundfish_mgmt_district>,<{}group_code>,<{}hail_weight>,<{}harvest_code>,<{}harvest_def>,<{}haul_number>,<{}hold_tank>,<{}home_directory>,<{}hook_size>,<{}hook_spacing>,<{}hooks_per_skate>,<{}ice_and_slime>,<{}id_required>,<{}ifq_fishery>,<{}ifq_gear>,<{}ifq_management>,<{}ifq_permit>,<{}ifq_permit_class>,<{}ifq_permit_number>,<{}ifq_port_code>,<{}import_directory>,<{}indication>,<{}initiate_date_time>,<{}install_date>,<{}installed_by_user>,<{}interview>,<{}iphc_regulatory_area>,<{}ipq_permit>,<{}ipq_permit_number>,<{}item_number>,<{}king_crab_mgmt_area>,<{}king_crab_mgmt_district>,<{}label>,<{}landing_report_id>,<{}landing_report_number_request_date>,<{}landing_report_number_request_increment>,<{}landing_report_number_threshold>,<{}last_change_user>,<{}last_delivery_for_trip>,<{}last_login_date>,<{}last_name>,<{}last_successful_login_date>,<{}length>,<{}license_number>,<{}license_year>,<{}limited>,<{}line_item_comment>,<{}line_item_number>,<{}line_item_stat_area>,<{}line_item_usable>,<{}line_items_ifq_out_of_sync>,<{}lingcod_mgmt_district>,<{}live_tank>,<{}locale_code>,<{}location>,<{}log_file_name>,<{}logbook>,<{}logbook_id>,<{}logging_level>,<{}mag_stripe_read>,<{}mail_processor_address>,<{}management_area_def>,<{}management_program>,<{}management_program_def>,<{}management_program_participant_def>,<{}manual_ifq_report>,<{}max_avg_weight>,<{}max_effort>,<{}max_login_retrys>,<{}max_xmit_file_size>,<{}md5>,<{}message>,<{}message_def>,<{}message_text>,<{}messages>,<{}middle_initial>,<{}min_avg_weight>,<{}min_effort>,<{}msgid>,<{}multiple_ifq_permits>,<{}name_suffix>,<{}nearest_bay_or_headland>,<{}net_tonnage>,<{}nmfs_person>,<{}nmfs_person_id>,<{}no_change_after_date>,<{}no_deliveries>,<{}no_production>,<{}num_cfec_permit_lines>,<{}num_decimals_for_price>,<{}num_decimals_for_weight>,<{}num_discard_lines>,<{}num_grading_pricing_lines>,<{}num_ifq_permit_lines>,<{}num_itemized_catch_lines>,<{}num_of_cfec_permits>,<{}num_of_landing_reports>,<{}num_prod_report_lines>,<{}num_stat_area_ws_lines>,<{}number_info>,<{}observer>,<{}observer_info>,<{}observer_name>,<{}observers>,<{}observers_onboard>,<{}operating_system>,<{}operating_system_version>,<{}operation>,<{}operation_name>,<{}operation_type_def>,<{}operator_name>,<{}out_of_state>,<{}overlimit_in_effect>,<{}overlimit_species>,<{}overlimit_threshold>,<{}parameter_key>,<{}parameter_value>,<{}parent_company>,<{}parent_operation>,<{}parent_operation_codes>,<{}parm>,<{}partial_delivery>,<{}password>,<{}path_name>,<{}percent>,<{}permit_item_number>,<{}permit_number>,<{}phone>,<{}phone_system>,<{}port_def>,<{}port_of_landing>,<{}possible_causes>,<{}pounds>,<{}price>,<{}primary_userid>,<{}printed_copy>,<{}printed_document>,<{}proc_code>,<{}proc_code_owner>,<{}proc_code_processor>,<{}proc_effort>,<{}proc_stat_area>,<{}process>,<{}processor_user>,<{}processor_user_info>,<{}product_code>,<{}product_item_template>,<{}product_recovery_rate>,<{}product_type>,<{}production_report_id>,<{}production_report_usable>,<{}program>,<{}program_id>,<{}query_group>,<{}query_id>,<{}query_name>,<{}query_output_format>,<{}query_result>,<{}query_sql>,<{}query_xml_template>,<{}receipt_date>,<{}receipt_directory>,<{}reception_date>,<{}record_id>,<{}refrigerator_flag>,<{}region>,<{}registered_buyer_number>,<{}registered_crab_receiver>,<{}registered_crab_receiver_number>,<{}report_data>,<{}report_date>,<{}report_status_def>,<{}report_type_def>,<{}request_receipt_date_time>,<{}response_address>,<{}response_receipt_date_time>,<{}retained_weight>,<{}revoked>,<{}root_directory>,<{}rsw_temp>,<{}salmon_mgmt_area>,<{}salmon_mgmt_district>,<{}salmon_mgmt_unit_code>,<{}salmon_stat_area_name>,<{}save_date>,<{}scallop_mgmt_area>,<{}scallop_mgmt_district>,<{}schema_change_notify>,<{}schema_version>,<{}scientific_name>,<{}secret_answer>,<{}security_question>,<{}send_email_flag>,<{}sequence_ticket_end>,<{}sequence_ticket_start>,<{}set_number>,<{}severity>,<{}shaft_horsepower>,<{}show_price>,<{}size_grade>,<{}size_grade_template>,<{}skate_length>,<{}slide>,<{}smtp_server>,<{}sold_condition_def>,<{}sold_weight>,<{}southeast_shellfish_area>,<{}special_area>,<{}special_area_def>,<{}species>,<{}species_def>,<{}species_defaults_source>,<{}start_date>,<{}start_datetime>,<{}start_entry_seq>,<{}starting_font_size>,<{}stat_area>,<{}stat_area_def>,<{}stat_area_worksheet>,<{}state>,<{}status>,<{}substitution>,<{}tally_invoice>,<{}tanner_crab_mgmt_area>,<{}tanner_crab_mgmt_district>,<{}tanner_crab_mgmt_section>,<{}tare>,<{}target_species>,<{}tender_batch>,<{}tender_packer_flag>,<{}tender_trip_number>,<{}tender_vessel>,<{}test_mode>,<{}title>,<{}total_tare>,<{}transmission>,<{}transmit_date>,<{}transmit_log>,<{}transmit_log_time>,<{}transmit_type>,<{}trip_event_code>,<{}trip_event_def>,<{}trip_number>,<{}trip_number_verified>,<{}trip_wide>,<{}type_of_address>,<{}type_of_engine>,<{}type_of_generated_report>,<{}type_of_hull>,<{}type_of_landing_report>,<{}type_of_operation>,<{}type_of_owner>,<{}type_of_production_report>,<{}unit_name>,<{}unpublished>,<{}user_defined_alias>,<{}user_name>,<{}userid>,<{}valid_condition_code>,<{}value>,<{}version_label>,<{}version_number>,<{}vessel>,<{}vessel_defaults_source>,<{}vessel_name>,<{}waters>,<{}weight>,<{}weight_modifier>,<{}weight_modifier_def>,<{}weight_unit_of_measure>,<{}whole_mixed_salmon_average_weight>,<{}workstation_id>,<{}year>,<{}year_built>,<{}year_seq>,<{}zip_code>
at com.sun.xml.internal.bind.v2.runtime.unmarshaller.UnmarshallingContext.handleEvent(UnmarshallingContext.java:631)
at com.sun.xml.internal.bind.v2.runtime.unmarshaller.Loader.reportError(Loader.java:236)
at com.sun.xml.internal.bind.v2.runtime.unmarshaller.Loader.reportError(Loader.java:231)
at com.sun.xml.internal.bind.v2.runtime.unmarshaller.Loader.reportUnexpectedChildElement(Loader.java:105)

One way to correct this issue is to regenerate the landingreport.xsd generated files to a defined package like "landingreport". Then define this new path when creating an unmarshaller that points to "landingreport" subfolder as it's context when working with landingreport objects. Repeat this process for codes.xsd. Generated the codes.xsd files to the "codes" subfolder.

Alternatively you can generate the unmarshaller with something like:

JAXBContext jc = JAXBContext.newInstance(GENERATED_PACKAGE);
Unmarshaller u = jc.createUnmarshaller();

Schema schema = null;
SchemaFactory schemaFactory = SchemaFactory.newInstance(XMLConstants.W3C_XML_SCHEMA_NS_URI);
ClassLoader loader = Thread.currentThread().getContextClassLoader();
StreamSource[] sources;

sources = new StreamSource[54];
sources[0] = new StreamSource(loader.getResourceAsStream("datatypes.xsd"));
sources[1] = new StreamSource(loader.getResourceAsStream("dataelements.xsd"));
sources[2] = new StreamSource(loader.getResourceAsStream("codes.xsd"));
sources[3] = new StreamSource(loader.getResourceAsStream("elandings.xsd"));
sources[4] = new StreamSource(loader.getResourceAsStream("landingreport.xsd"));

schema.newValidatorHandler();
u.setSchema(schema);