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/* 
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 * 
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 * 
 */
package com.prowidesoftware.swift.model.mt.mt3xx;

import java.io.Serializable;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;

import com.prowidesoftware.swift.model.*;
import com.prowidesoftware.swift.model.field.*;
import com.prowidesoftware.swift.model.mt.AbstractMT;

/**
 * MT 304


 *
 *		 
 * NOTE: this source code has been generated from template
 *
 * @author www.prowidesoftware.com
 */
public class MT304 extends AbstractMT implements Serializable {
	private static final long serialVersionUID = 1L;
	private static transient final java.util.logging.Logger log = java.util.logging.Logger.getLogger(MT304.class.getName());

	/**
	 * Creates an MT304 initialized with the parameter SwiftMessage
	 * @param m swift message with the MT304 content
	 */
	public MT304(SwiftMessage m) {
		super(m);
	}

	/**
	 * Creates an MT304 initialized with a new SwiftMessage
	 */
	public MT304() {
		super();
	}
	
	/**
	 * Returns this MT number
	 * @return the message type number of this MT
	 * @since 6.4
	 */
	@Override
	public String getMessageType() {
		return "304";
	}
	
	/**
	 * Iterates through block4 fields and return the first one whose name matches 15A, 
	 * or null if none is found.

	 * The first occurrence of field 15A at MT304 is expected to be the only one.
	 * 
	 * @return a Field15A object or null if the field is not found
	 * @see SwiftTagListBlock#getTagByName(String)
	 * @throws IllegalStateException if SwiftMessage object is not initialized
	 */
	public Field15A getField15A() {
		if (getSwiftMessage() == null) {
			throw new IllegalStateException("SwiftMessage was not initialized");
		}
		if (getSwiftMessage().getBlock4() == null) {
			log.info("block4 is null");
			return null;
		} else {
			final Tag t = getSwiftMessage().getBlock4().getTagByName("15A");
			if (t == null) {
				log.fine("field 15A not found");
				return null;
			} else {
				return new Field15A(t.getValue());
			}
		}
	}
	
	/**
	 * Iterates through block4 fields and return the first one whose name matches 20, 
	 * or null if none is found.

	 * The first occurrence of field 20 at MT304 is expected to be the only one.
	 * 
	 * @return a Field20 object or null if the field is not found
	 * @see SwiftTagListBlock#getTagByName(String)
	 * @throws IllegalStateException if SwiftMessage object is not initialized
	 */
	public Field20 getField20() {
		if (getSwiftMessage() == null) {
			throw new IllegalStateException("SwiftMessage was not initialized");
		}
		if (getSwiftMessage().getBlock4() == null) {
			log.info("block4 is null");
			return null;
		} else {
			final Tag t = getSwiftMessage().getBlock4().getTagByName("20");
			if (t == null) {
				log.fine("field 20 not found");
				return null;
			} else {
				return new Field20(t.getValue());
			}
		}
	}
	
	/**
	 * Iterates through block4 fields and return the first one whose name matches 21, 
	 * or null if none is found.

	 * The first occurrence of field 21 at MT304 is expected to be the only one.
	 * 
	 * @return a Field21 object or null if the field is not found
	 * @see SwiftTagListBlock#getTagByName(String)
	 * @throws IllegalStateException if SwiftMessage object is not initialized
	 */
	public Field21 getField21() {
		if (getSwiftMessage() == null) {
			throw new IllegalStateException("SwiftMessage was not initialized");
		}
		if (getSwiftMessage().getBlock4() == null) {
			log.info("block4 is null");
			return null;
		} else {
			final Tag t = getSwiftMessage().getBlock4().getTagByName("21");
			if (t == null) {
				log.fine("field 21 not found");
				return null;
			} else {
				return new Field21(t.getValue());
			}
		}
	}
	
	/**
	 * Iterates through block4 fields and return the first one whose name matches 22A, 
	 * or null if none is found.

	 * The first occurrence of field 22A at MT304 is expected to be the only one.
	 * 
	 * @return a Field22A object or null if the field is not found
	 * @see SwiftTagListBlock#getTagByName(String)
	 * @throws IllegalStateException if SwiftMessage object is not initialized
	 */
	public Field22A getField22A() {
		if (getSwiftMessage() == null) {
			throw new IllegalStateException("SwiftMessage was not initialized");
		}
		if (getSwiftMessage().getBlock4() == null) {
			log.info("block4 is null");
			return null;
		} else {
			final Tag t = getSwiftMessage().getBlock4().getTagByName("22A");
			if (t == null) {
				log.fine("field 22A not found");
				return null;
			} else {
				return new Field22A(t.getValue());
			}
		}
	}
	
	/**
	 * Iterates through block4 fields and return the first one whose name matches 94A, 
	 * or null if none is found.

	 * The first occurrence of field 94A at MT304 is expected to be the only one.
	 * 
	 * @return a Field94A object or null if the field is not found
	 * @see SwiftTagListBlock#getTagByName(String)
	 * @throws IllegalStateException if SwiftMessage object is not initialized
	 */
	public Field94A getField94A() {
		if (getSwiftMessage() == null) {
			throw new IllegalStateException("SwiftMessage was not initialized");
		}
		if (getSwiftMessage().getBlock4() == null) {
			log.info("block4 is null");
			return null;
		} else {
			final Tag t = getSwiftMessage().getBlock4().getTagByName("94A");
			if (t == null) {
				log.fine("field 94A not found");
				return null;
			} else {
				return new Field94A(t.getValue());
			}
		}
	}
	
	/**
	 * Iterates through block4 fields and return the first one whose name matches 17O, 
	 * or null if none is found.

	 * The first occurrence of field 17O at MT304 is expected to be the only one.
	 * 
	 * @return a Field17O object or null if the field is not found
	 * @see SwiftTagListBlock#getTagByName(String)
	 * @throws IllegalStateException if SwiftMessage object is not initialized
	 */
	public Field17O getField17O() {
		if (getSwiftMessage() == null) {
			throw new IllegalStateException("SwiftMessage was not initialized");
		}
		if (getSwiftMessage().getBlock4() == null) {
			log.info("block4 is null");
			return null;
		} else {
			final Tag t = getSwiftMessage().getBlock4().getTagByName("17O");
			if (t == null) {
				log.fine("field 17O not found");
				return null;
			} else {
				return new Field17O(t.getValue());
			}
		}
	}
	
	/**
	 * Iterates through block4 fields and return the first one whose name matches 17F, 
	 * or null if none is found.

	 * The first occurrence of field 17F at MT304 is expected to be the only one.
	 * 
	 * @return a Field17F object or null if the field is not found
	 * @see SwiftTagListBlock#getTagByName(String)
	 * @throws IllegalStateException if SwiftMessage object is not initialized
	 */
	public Field17F getField17F() {
		if (getSwiftMessage() == null) {
			throw new IllegalStateException("SwiftMessage was not initialized");
		}
		if (getSwiftMessage().getBlock4() == null) {
			log.info("block4 is null");
			return null;
		} else {
			final Tag t = getSwiftMessage().getBlock4().getTagByName("17F");
			if (t == null) {
				log.fine("field 17F not found");
				return null;
			} else {
				return new Field17F(t.getValue());
			}
		}
	}
	
	/**
	 * Iterates through block4 fields and return the first one whose name matches 17N, 
	 * or null if none is found.

	 * The first occurrence of field 17N at MT304 is expected to be the only one.
	 * 
	 * @return a Field17N object or null if the field is not found
	 * @see SwiftTagListBlock#getTagByName(String)
	 * @throws IllegalStateException if SwiftMessage object is not initialized
	 */
	public Field17N getField17N() {
		if (getSwiftMessage() == null) {
			throw new IllegalStateException("SwiftMessage was not initialized");
		}
		if (getSwiftMessage().getBlock4() == null) {
			log.info("block4 is null");
			return null;
		} else {
			final Tag t = getSwiftMessage().getBlock4().getTagByName("17N");
			if (t == null) {
				log.fine("field 17N not found");
				return null;
			} else {
				return new Field17N(t.getValue());
			}
		}
	}
	
	/**
	 * Iterates through block4 fields and return the first one whose name matches 83A, 
	 * or null if none is found.

	 * The first occurrence of field 83A at MT304 is expected to be the only one.
	 * 
	 * @return a Field83A object or null if the field is not found
	 * @see SwiftTagListBlock#getTagByName(String)
	 * @throws IllegalStateException if SwiftMessage object is not initialized
	 */
	public Field83A getField83A() {
		if (getSwiftMessage() == null) {
			throw new IllegalStateException("SwiftMessage was not initialized");
		}
		if (getSwiftMessage().getBlock4() == null) {
			log.info("block4 is null");
			return null;
		} else {
			final Tag t = getSwiftMessage().getBlock4().getTagByName("83A");
			if (t == null) {
				log.fine("field 83A not found");
				return null;
			} else {
				return new Field83A(t.getValue());
			}
		}
	}
	
	/**
	 * Iterates through block4 fields and return the first one whose name matches 83D, 
	 * or null if none is found.

	 * The first occurrence of field 83D at MT304 is expected to be the only one.
	 * 
	 * @return a Field83D object or null if the field is not found
	 * @see SwiftTagListBlock#getTagByName(String)
	 * @throws IllegalStateException if SwiftMessage object is not initialized
	 */
	public Field83D getField83D() {
		if (getSwiftMessage() == null) {
			throw new IllegalStateException("SwiftMessage was not initialized");
		}
		if (getSwiftMessage().getBlock4() == null) {
			log.info("block4 is null");
			return null;
		} else {
			final Tag t = getSwiftMessage().getBlock4().getTagByName("83D");
			if (t == null) {
				log.fine("field 83D not found");
				return null;
			} else {
				return new Field83D(t.getValue());
			}
		}
	}
	
	/**
	 * Iterates through block4 fields and return the first one whose name matches 83J, 
	 * or null if none is found.

	 * The first occurrence of field 83J at MT304 is expected to be the only one.
	 * 
	 * @return a Field83J object or null if the field is not found
	 * @see SwiftTagListBlock#getTagByName(String)
	 * @throws IllegalStateException if SwiftMessage object is not initialized
	 */
	public Field83J getField83J() {
		if (getSwiftMessage() == null) {
			throw new IllegalStateException("SwiftMessage was not initialized");
		}
		if (getSwiftMessage().getBlock4() == null) {
			log.info("block4 is null");
			return null;
		} else {
			final Tag t = getSwiftMessage().getBlock4().getTagByName("83J");
			if (t == null) {
				log.fine("field 83J not found");
				return null;
			} else {
				return new Field83J(t.getValue());
			}
		}
	}
	
	/**
	 * Iterates through block4 fields and return the first one whose name matches 82A, 
	 * or null if none is found.

	 * The first occurrence of field 82A at MT304 is expected to be the only one.
	 * 
	 * @return a Field82A object or null if the field is not found
	 * @see SwiftTagListBlock#getTagByName(String)
	 * @throws IllegalStateException if SwiftMessage object is not initialized
	 */
	public Field82A getField82A() {
		if (getSwiftMessage() == null) {
			throw new IllegalStateException("SwiftMessage was not initialized");
		}
		if (getSwiftMessage().getBlock4() == null) {
			log.info("block4 is null");
			return null;
		} else {
			final Tag t = getSwiftMessage().getBlock4().getTagByName("82A");
			if (t == null) {
				log.fine("field 82A not found");
				return null;
			} else {
				return new Field82A(t.getValue());
			}
		}
	}
	
	/**
	 * Iterates through block4 fields and return the first one whose name matches 82D, 
	 * or null if none is found.

	 * The first occurrence of field 82D at MT304 is expected to be the only one.
	 * 
	 * @return a Field82D object or null if the field is not found
	 * @see SwiftTagListBlock#getTagByName(String)
	 * @throws IllegalStateException if SwiftMessage object is not initialized
	 */
	public Field82D getField82D() {
		if (getSwiftMessage() == null) {
			throw new IllegalStateException("SwiftMessage was not initialized");
		}
		if (getSwiftMessage().getBlock4() == null) {
			log.info("block4 is null");
			return null;
		} else {
			final Tag t = getSwiftMessage().getBlock4().getTagByName("82D");
			if (t == null) {
				log.fine("field 82D not found");
				return null;
			} else {
				return new Field82D(t.getValue());
			}
		}
	}
	
	/**
	 * Iterates through block4 fields and return the first one whose name matches 82J, 
	 * or null if none is found.

	 * The first occurrence of field 82J at MT304 is expected to be the only one.
	 * 
	 * @return a Field82J object or null if the field is not found
	 * @see SwiftTagListBlock#getTagByName(String)
	 * @throws IllegalStateException if SwiftMessage object is not initialized
	 */
	public Field82J getField82J() {
		if (getSwiftMessage() == null) {
			throw new IllegalStateException("SwiftMessage was not initialized");
		}
		if (getSwiftMessage().getBlock4() == null) {
			log.info("block4 is null");
			return null;
		} else {
			final Tag t = getSwiftMessage().getBlock4().getTagByName("82J");
			if (t == null) {
				log.fine("field 82J not found");
				return null;
			} else {
				return new Field82J(t.getValue());
			}
		}
	}
	
	/**
	 * Iterates through block4 fields and return the first one whose name matches 87A, 
	 * or null if none is found.

	 * The first occurrence of field 87A at MT304 is expected to be the only one.
	 * 
	 * @return a Field87A object or null if the field is not found
	 * @see SwiftTagListBlock#getTagByName(String)
	 * @throws IllegalStateException if SwiftMessage object is not initialized
	 */
	public Field87A getField87A() {
		if (getSwiftMessage() == null) {
			throw new IllegalStateException("SwiftMessage was not initialized");
		}
		if (getSwiftMessage().getBlock4() == null) {
			log.info("block4 is null");
			return null;
		} else {
			final Tag t = getSwiftMessage().getBlock4().getTagByName("87A");
			if (t == null) {
				log.fine("field 87A not found");
				return null;
			} else {
				return new Field87A(t.getValue());
			}
		}
	}
	
	/**
	 * Iterates through block4 fields and return the first one whose name matches 87D, 
	 * or null if none is found.

	 * The first occurrence of field 87D at MT304 is expected to be the only one.
	 * 
	 * @return a Field87D object or null if the field is not found
	 * @see SwiftTagListBlock#getTagByName(String)
	 * @throws IllegalStateException if SwiftMessage object is not initialized
	 */
	public Field87D getField87D() {
		if (getSwiftMessage() == null) {
			throw new IllegalStateException("SwiftMessage was not initialized");
		}
		if (getSwiftMessage().getBlock4() == null) {
			log.info("block4 is null");
			return null;
		} else {
			final Tag t = getSwiftMessage().getBlock4().getTagByName("87D");
			if (t == null) {
				log.fine("field 87D not found");
				return null;
			} else {
				return new Field87D(t.getValue());
			}
		}
	}
	
	/**
	 * Iterates through block4 fields and return the first one whose name matches 87J, 
	 * or null if none is found.

	 * The first occurrence of field 87J at MT304 is expected to be the only one.
	 * 
	 * @return a Field87J object or null if the field is not found
	 * @see SwiftTagListBlock#getTagByName(String)
	 * @throws IllegalStateException if SwiftMessage object is not initialized
	 */
	public Field87J getField87J() {
		if (getSwiftMessage() == null) {
			throw new IllegalStateException("SwiftMessage was not initialized");
		}
		if (getSwiftMessage().getBlock4() == null) {
			log.info("block4 is null");
			return null;
		} else {
			final Tag t = getSwiftMessage().getBlock4().getTagByName("87J");
			if (t == null) {
				log.fine("field 87J not found");
				return null;
			} else {
				return new Field87J(t.getValue());
			}
		}
	}
	
	/**
	 * Iterates through block4 fields and return the first one whose name matches 77H, 
	 * or null if none is found.

	 * The first occurrence of field 77H at MT304 is expected to be the only one.
	 * 
	 * @return a Field77H object or null if the field is not found
	 * @see SwiftTagListBlock#getTagByName(String)
	 * @throws IllegalStateException if SwiftMessage object is not initialized
	 */
	public Field77H getField77H() {
		if (getSwiftMessage() == null) {
			throw new IllegalStateException("SwiftMessage was not initialized");
		}
		if (getSwiftMessage().getBlock4() == null) {
			log.info("block4 is null");
			return null;
		} else {
			final Tag t = getSwiftMessage().getBlock4().getTagByName("77H");
			if (t == null) {
				log.fine("field 77H not found");
				return null;
			} else {
				return new Field77H(t.getValue());
			}
		}
	}
	
	/**
	 * Iterates through block4 fields and return the first one whose name matches 14C, 
	 * or null if none is found.

	 * The first occurrence of field 14C at MT304 is expected to be the only one.
	 * 
	 * @return a Field14C object or null if the field is not found
	 * @see SwiftTagListBlock#getTagByName(String)
	 * @throws IllegalStateException if SwiftMessage object is not initialized
	 */
	public Field14C getField14C() {
		if (getSwiftMessage() == null) {
			throw new IllegalStateException("SwiftMessage was not initialized");
		}
		if (getSwiftMessage().getBlock4() == null) {
			log.info("block4 is null");
			return null;
		} else {
			final Tag t = getSwiftMessage().getBlock4().getTagByName("14C");
			if (t == null) {
				log.fine("field 14C not found");
				return null;
			} else {
				return new Field14C(t.getValue());
			}
		}
	}
	
	/**
	 * Iterates through block4 fields and return the first one whose name matches 15B, 
	 * or null if none is found.

	 * The first occurrence of field 15B at MT304 is expected to be the only one.
	 * 
	 * @return a Field15B object or null if the field is not found
	 * @see SwiftTagListBlock#getTagByName(String)
	 * @throws IllegalStateException if SwiftMessage object is not initialized
	 */
	public Field15B getField15B() {
		if (getSwiftMessage() == null) {
			throw new IllegalStateException("SwiftMessage was not initialized");
		}
		if (getSwiftMessage().getBlock4() == null) {
			log.info("block4 is null");
			return null;
		} else {
			final Tag t = getSwiftMessage().getBlock4().getTagByName("15B");
			if (t == null) {
				log.fine("field 15B not found");
				return null;
			} else {
				return new Field15B(t.getValue());
			}
		}
	}
	
	/**
	 * Iterates through block4 fields and return the first one whose name matches 30T, 
	 * or null if none is found.

	 * The first occurrence of field 30T at MT304 is expected to be the only one.
	 * 
	 * @return a Field30T object or null if the field is not found
	 * @see SwiftTagListBlock#getTagByName(String)
	 * @throws IllegalStateException if SwiftMessage object is not initialized
	 */
	public Field30T getField30T() {
		if (getSwiftMessage() == null) {
			throw new IllegalStateException("SwiftMessage was not initialized");
		}
		if (getSwiftMessage().getBlock4() == null) {
			log.info("block4 is null");
			return null;
		} else {
			final Tag t = getSwiftMessage().getBlock4().getTagByName("30T");
			if (t == null) {
				log.fine("field 30T not found");
				return null;
			} else {
				return new Field30T(t.getValue());
			}
		}
	}
	
	/**
	 * Iterates through block4 fields and return the first one whose name matches 30V, 
	 * or null if none is found.

	 * The first occurrence of field 30V at MT304 is expected to be the only one.
	 * 
	 * @return a Field30V object or null if the field is not found
	 * @see SwiftTagListBlock#getTagByName(String)
	 * @throws IllegalStateException if SwiftMessage object is not initialized
	 */
	public Field30V getField30V() {
		if (getSwiftMessage() == null) {
			throw new IllegalStateException("SwiftMessage was not initialized");
		}
		if (getSwiftMessage().getBlock4() == null) {
			log.info("block4 is null");
			return null;
		} else {
			final Tag t = getSwiftMessage().getBlock4().getTagByName("30V");
			if (t == null) {
				log.fine("field 30V not found");
				return null;
			} else {
				return new Field30V(t.getValue());
			}
		}
	}
	
	/**
	 * Iterates through block4 fields and return the first one whose name matches 36, 
	 * or null if none is found.

	 * The first occurrence of field 36 at MT304 is expected to be the only one.
	 * 
	 * @return a Field36 object or null if the field is not found
	 * @see SwiftTagListBlock#getTagByName(String)
	 * @throws IllegalStateException if SwiftMessage object is not initialized
	 */
	public Field36 getField36() {
		if (getSwiftMessage() == null) {
			throw new IllegalStateException("SwiftMessage was not initialized");
		}
		if (getSwiftMessage().getBlock4() == null) {
			log.info("block4 is null");
			return null;
		} else {
			final Tag t = getSwiftMessage().getBlock4().getTagByName("36");
			if (t == null) {
				log.fine("field 36 not found");
				return null;
			} else {
				return new Field36(t.getValue());
			}
		}
	}
	
	/**
	 * Iterates through block4 fields and return the first one whose name matches 32B, 
	 * or null if none is found.

	 * The first occurrence of field 32B at MT304 is expected to be the only one.
	 * 
	 * @return a Field32B object or null if the field is not found
	 * @see SwiftTagListBlock#getTagByName(String)
	 * @throws IllegalStateException if SwiftMessage object is not initialized
	 */
	public Field32B getField32B() {
		if (getSwiftMessage() == null) {
			throw new IllegalStateException("SwiftMessage was not initialized");
		}
		if (getSwiftMessage().getBlock4() == null) {
			log.info("block4 is null");
			return null;
		} else {
			final Tag t = getSwiftMessage().getBlock4().getTagByName("32B");
			if (t == null) {
				log.fine("field 32B not found");
				return null;
			} else {
				return new Field32B(t.getValue());
			}
		}
	}
	
	/**
	 * Iterates through block4 fields and return the first one whose name matches 33B, 
	 * or null if none is found.

	 * The first occurrence of field 33B at MT304 is expected to be the only one.
	 * 
	 * @return a Field33B object or null if the field is not found
	 * @see SwiftTagListBlock#getTagByName(String)
	 * @throws IllegalStateException if SwiftMessage object is not initialized
	 */
	public Field33B getField33B() {
		if (getSwiftMessage() == null) {
			throw new IllegalStateException("SwiftMessage was not initialized");
		}
		if (getSwiftMessage().getBlock4() == null) {
			log.info("block4 is null");
			return null;
		} else {
			final Tag t = getSwiftMessage().getBlock4().getTagByName("33B");
			if (t == null) {
				log.fine("field 33B not found");
				return null;
			} else {
				return new Field33B(t.getValue());
			}
		}
	}
	
	/**
	 * Iterates through block4 fields and return the first one whose name matches 15C, 
	 * or null if none is found.

	 * The first occurrence of field 15C at MT304 is expected to be the only one.
	 * 
	 * @return a Field15C object or null if the field is not found
	 * @see SwiftTagListBlock#getTagByName(String)
	 * @throws IllegalStateException if SwiftMessage object is not initialized
	 */
	public Field15C getField15C() {
		if (getSwiftMessage() == null) {
			throw new IllegalStateException("SwiftMessage was not initialized");
		}
		if (getSwiftMessage().getBlock4() == null) {
			log.info("block4 is null");
			return null;
		} else {
			final Tag t = getSwiftMessage().getBlock4().getTagByName("15C");
			if (t == null) {
				log.fine("field 15C not found");
				return null;
			} else {
				return new Field15C(t.getValue());
			}
		}
	}
	
	/**
	 * Iterates through block4 fields and return the first one whose name matches 21A, 
	 * or null if none is found.

	 * The first occurrence of field 21A at MT304 is expected to be the only one.
	 * 
	 * @return a Field21A object or null if the field is not found
	 * @see SwiftTagListBlock#getTagByName(String)
	 * @throws IllegalStateException if SwiftMessage object is not initialized
	 */
	public Field21A getField21A() {
		if (getSwiftMessage() == null) {
			throw new IllegalStateException("SwiftMessage was not initialized");
		}
		if (getSwiftMessage().getBlock4() == null) {
			log.info("block4 is null");
			return null;
		} else {
			final Tag t = getSwiftMessage().getBlock4().getTagByName("21A");
			if (t == null) {
				log.fine("field 21A not found");
				return null;
			} else {
				return new Field21A(t.getValue());
			}
		}
	}
	
	/**
	 * Iterates through block4 fields and return the first one whose name matches 21G, 
	 * or null if none is found.

	 * The first occurrence of field 21G at MT304 is expected to be the only one.
	 * 
	 * @return a Field21G object or null if the field is not found
	 * @see SwiftTagListBlock#getTagByName(String)
	 * @throws IllegalStateException if SwiftMessage object is not initialized
	 */
	public Field21G getField21G() {
		if (getSwiftMessage() == null) {
			throw new IllegalStateException("SwiftMessage was not initialized");
		}
		if (getSwiftMessage().getBlock4() == null) {
			log.info("block4 is null");
			return null;
		} else {
			final Tag t = getSwiftMessage().getBlock4().getTagByName("21G");
			if (t == null) {
				log.fine("field 21G not found");
				return null;
			} else {
				return new Field21G(t.getValue());
			}
		}
	}
	
	/**
	 * Iterates through block4 fields and return the first one whose name matches 29A, 
	 * or null if none is found.

	 * The first occurrence of field 29A at MT304 is expected to be the only one.
	 * 
	 * @return a Field29A object or null if the field is not found
	 * @see SwiftTagListBlock#getTagByName(String)
	 * @throws IllegalStateException if SwiftMessage object is not initialized
	 */
	public Field29A getField29A() {
		if (getSwiftMessage() == null) {
			throw new IllegalStateException("SwiftMessage was not initialized");
		}
		if (getSwiftMessage().getBlock4() == null) {
			log.info("block4 is null");
			return null;
		} else {
			final Tag t = getSwiftMessage().getBlock4().getTagByName("29A");
			if (t == null) {
				log.fine("field 29A not found");
				return null;
			} else {
				return new Field29A(t.getValue());
			}
		}
	}
	
	/**
	 * Iterates through block4 fields and return the first one whose name matches 72, 
	 * or null if none is found.

	 * The first occurrence of field 72 at MT304 is expected to be the only one.
	 * 
	 * @return a Field72 object or null if the field is not found
	 * @see SwiftTagListBlock#getTagByName(String)
	 * @throws IllegalStateException if SwiftMessage object is not initialized
	 */
	public Field72 getField72() {
		if (getSwiftMessage() == null) {
			throw new IllegalStateException("SwiftMessage was not initialized");
		}
		if (getSwiftMessage().getBlock4() == null) {
			log.info("block4 is null");
			return null;
		} else {
			final Tag t = getSwiftMessage().getBlock4().getTagByName("72");
			if (t == null) {
				log.fine("field 72 not found");
				return null;
			} else {
				return new Field72(t.getValue());
			}
		}
	}
	
	/**
	 * Iterates through block4 fields and return the first one whose name matches 15D, 
	 * or null if none is found.

	 * The first occurrence of field 15D at MT304 is expected to be the only one.
	 * 
	 * @return a Field15D object or null if the field is not found
	 * @see SwiftTagListBlock#getTagByName(String)
	 * @throws IllegalStateException if SwiftMessage object is not initialized
	 */
	public Field15D getField15D() {
		if (getSwiftMessage() == null) {
			throw new IllegalStateException("SwiftMessage was not initialized");
		}
		if (getSwiftMessage().getBlock4() == null) {
			log.info("block4 is null");
			return null;
		} else {
			final Tag t = getSwiftMessage().getBlock4().getTagByName("15D");
			if (t == null) {
				log.fine("field 15D not found");
				return null;
			} else {
				return new Field15D(t.getValue());
			}
		}
	}
	
	/**
	 * Iterates through block4 fields and return the first one whose name matches 15E, 
	 * or null if none is found.

	 * The first occurrence of field 15E at MT304 is expected to be the only one.
	 * 
	 * @return a Field15E object or null if the field is not found
	 * @see SwiftTagListBlock#getTagByName(String)
	 * @throws IllegalStateException if SwiftMessage object is not initialized
	 */
	public Field15E getField15E() {
		if (getSwiftMessage() == null) {
			throw new IllegalStateException("SwiftMessage was not initialized");
		}
		if (getSwiftMessage().getBlock4() == null) {
			log.info("block4 is null");
			return null;
		} else {
			final Tag t = getSwiftMessage().getBlock4().getTagByName("15E");
			if (t == null) {
				log.fine("field 15E not found");
				return null;
			} else {
				return new Field15E(t.getValue());
			}
		}
	}
	
	/**
	 * Iterates through block4 fields and return all occurrences of fields whose names matches 53A, 
	 * or Collections.emptyList() if none is found.

	 * Multiple occurrences of field 53A at MT304 are expected at one sequence or across several sequences.
	 * 
	 * @return a List of Field53A objects or Collections.emptyList() if none is not found
	 * @see SwiftTagListBlock#getTagsByName(String)
	 * @throws IllegalStateException if SwiftMessage object is not initialized
	 */
	public List getField53A() {
		if (getSwiftMessage() == null) {
			throw new IllegalStateException("SwiftMessage was not initialized");
		}
		if (getSwiftMessage().getBlock4() == null) {
			log.info("block4 is null");
			return Collections.emptyList();
		} else {
			final Tag[] tags = getSwiftMessage().getBlock4().getTagsByName("53A");
			final List result = new ArrayList();
			for (int i=0; iCollections.emptyList() if none is found.

	 * Multiple occurrences of field 53D at MT304 are expected at one sequence or across several sequences.
	 * 
	 * @return a List of Field53D objects or Collections.emptyList() if none is not found
	 * @see SwiftTagListBlock#getTagsByName(String)
	 * @throws IllegalStateException if SwiftMessage object is not initialized
	 */
	public List getField53D() {
		if (getSwiftMessage() == null) {
			throw new IllegalStateException("SwiftMessage was not initialized");
		}
		if (getSwiftMessage().getBlock4() == null) {
			log.info("block4 is null");
			return Collections.emptyList();
		} else {
			final Tag[] tags = getSwiftMessage().getBlock4().getTagsByName("53D");
			final List result = new ArrayList();
			for (int i=0; iCollections.emptyList() if none is found.

	 * Multiple occurrences of field 53J at MT304 are expected at one sequence or across several sequences.
	 * 
	 * @return a List of Field53J objects or Collections.emptyList() if none is not found
	 * @see SwiftTagListBlock#getTagsByName(String)
	 * @throws IllegalStateException if SwiftMessage object is not initialized
	 */
	public List getField53J() {
		if (getSwiftMessage() == null) {
			throw new IllegalStateException("SwiftMessage was not initialized");
		}
		if (getSwiftMessage().getBlock4() == null) {
			log.info("block4 is null");
			return Collections.emptyList();
		} else {
			final Tag[] tags = getSwiftMessage().getBlock4().getTagsByName("53J");
			final List result = new ArrayList();
			for (int i=0; iCollections.emptyList() if none is found.

	 * Multiple occurrences of field 56A at MT304 are expected at one sequence or across several sequences.
	 * 
	 * @return a List of Field56A objects or Collections.emptyList() if none is not found
	 * @see SwiftTagListBlock#getTagsByName(String)
	 * @throws IllegalStateException if SwiftMessage object is not initialized
	 */
	public List getField56A() {
		if (getSwiftMessage() == null) {
			throw new IllegalStateException("SwiftMessage was not initialized");
		}
		if (getSwiftMessage().getBlock4() == null) {
			log.info("block4 is null");
			return Collections.emptyList();
		} else {
			final Tag[] tags = getSwiftMessage().getBlock4().getTagsByName("56A");
			final List result = new ArrayList();
			for (int i=0; iCollections.emptyList() if none is found.

	 * Multiple occurrences of field 56D at MT304 are expected at one sequence or across several sequences.
	 * 
	 * @return a List of Field56D objects or Collections.emptyList() if none is not found
	 * @see SwiftTagListBlock#getTagsByName(String)
	 * @throws IllegalStateException if SwiftMessage object is not initialized
	 */
	public List getField56D() {
		if (getSwiftMessage() == null) {
			throw new IllegalStateException("SwiftMessage was not initialized");
		}
		if (getSwiftMessage().getBlock4() == null) {
			log.info("block4 is null");
			return Collections.emptyList();
		} else {
			final Tag[] tags = getSwiftMessage().getBlock4().getTagsByName("56D");
			final List result = new ArrayList();
			for (int i=0; iCollections.emptyList() if none is found.

	 * Multiple occurrences of field 56J at MT304 are expected at one sequence or across several sequences.
	 * 
	 * @return a List of Field56J objects or Collections.emptyList() if none is not found
	 * @see SwiftTagListBlock#getTagsByName(String)
	 * @throws IllegalStateException if SwiftMessage object is not initialized
	 */
	public List getField56J() {
		if (getSwiftMessage() == null) {
			throw new IllegalStateException("SwiftMessage was not initialized");
		}
		if (getSwiftMessage().getBlock4() == null) {
			log.info("block4 is null");
			return Collections.emptyList();
		} else {
			final Tag[] tags = getSwiftMessage().getBlock4().getTagsByName("56J");
			final List result = new ArrayList();
			for (int i=0; iCollections.emptyList() if none is found.

	 * Multiple occurrences of field 57A at MT304 are expected at one sequence or across several sequences.
	 * 
	 * @return a List of Field57A objects or Collections.emptyList() if none is not found
	 * @see SwiftTagListBlock#getTagsByName(String)
	 * @throws IllegalStateException if SwiftMessage object is not initialized
	 */
	public List getField57A() {
		if (getSwiftMessage() == null) {
			throw new IllegalStateException("SwiftMessage was not initialized");
		}
		if (getSwiftMessage().getBlock4() == null) {
			log.info("block4 is null");
			return Collections.emptyList();
		} else {
			final Tag[] tags = getSwiftMessage().getBlock4().getTagsByName("57A");
			final List result = new ArrayList();
			for (int i=0; iCollections.emptyList() if none is found.

	 * Multiple occurrences of field 57D at MT304 are expected at one sequence or across several sequences.
	 * 
	 * @return a List of Field57D objects or Collections.emptyList() if none is not found
	 * @see SwiftTagListBlock#getTagsByName(String)
	 * @throws IllegalStateException if SwiftMessage object is not initialized
	 */
	public List getField57D() {
		if (getSwiftMessage() == null) {
			throw new IllegalStateException("SwiftMessage was not initialized");
		}
		if (getSwiftMessage().getBlock4() == null) {
			log.info("block4 is null");
			return Collections.emptyList();
		} else {
			final Tag[] tags = getSwiftMessage().getBlock4().getTagsByName("57D");
			final List result = new ArrayList();
			for (int i=0; iCollections.emptyList() if none is found.

	 * Multiple occurrences of field 57J at MT304 are expected at one sequence or across several sequences.
	 * 
	 * @return a List of Field57J objects or Collections.emptyList() if none is not found
	 * @see SwiftTagListBlock#getTagsByName(String)
	 * @throws IllegalStateException if SwiftMessage object is not initialized
	 */
	public List getField57J() {
		if (getSwiftMessage() == null) {
			throw new IllegalStateException("SwiftMessage was not initialized");
		}
		if (getSwiftMessage().getBlock4() == null) {
			log.info("block4 is null");
			return Collections.emptyList();
		} else {
			final Tag[] tags = getSwiftMessage().getBlock4().getTagsByName("57J");
			final List result = new ArrayList();
			for (int i=0; iCollections.emptyList() if none is found.

	 * Multiple occurrences of field 21P at MT304 are expected at one sequence or across several sequences.
	 * 
	 * @return a List of Field21P objects or Collections.emptyList() if none is not found
	 * @see SwiftTagListBlock#getTagsByName(String)
	 * @throws IllegalStateException if SwiftMessage object is not initialized
	 */
	public List getField21P() {
		if (getSwiftMessage() == null) {
			throw new IllegalStateException("SwiftMessage was not initialized");
		}
		if (getSwiftMessage().getBlock4() == null) {
			log.info("block4 is null");
			return Collections.emptyList();
		} else {
			final Tag[] tags = getSwiftMessage().getBlock4().getTagsByName("21P");
			final List result = new ArrayList();
			for (int i=0; iCollections.emptyList() if none is found.

	 * Multiple occurrences of field 17G at MT304 are expected at one sequence or across several sequences.
	 * 
	 * @return a List of Field17G objects or Collections.emptyList() if none is not found
	 * @see SwiftTagListBlock#getTagsByName(String)
	 * @throws IllegalStateException if SwiftMessage object is not initialized
	 */
	public List getField17G() {
		if (getSwiftMessage() == null) {
			throw new IllegalStateException("SwiftMessage was not initialized");
		}
		if (getSwiftMessage().getBlock4() == null) {
			log.info("block4 is null");
			return Collections.emptyList();
		} else {
			final Tag[] tags = getSwiftMessage().getBlock4().getTagsByName("17G");
			final List result = new ArrayList();
			for (int i=0; iCollections.emptyList() if none is found.

	 * Multiple occurrences of field 32G at MT304 are expected at one sequence or across several sequences.
	 * 
	 * @return a List of Field32G objects or Collections.emptyList() if none is not found
	 * @see SwiftTagListBlock#getTagsByName(String)
	 * @throws IllegalStateException if SwiftMessage object is not initialized
	 */
	public List getField32G() {
		if (getSwiftMessage() == null) {
			throw new IllegalStateException("SwiftMessage was not initialized");
		}
		if (getSwiftMessage().getBlock4() == null) {
			log.info("block4 is null");
			return Collections.emptyList();
		} else {
			final Tag[] tags = getSwiftMessage().getBlock4().getTagsByName("32G");
			final List result = new ArrayList();
			for (int i=0; iCollections.emptyList() if none is found.

	 * Multiple occurrences of field 58A at MT304 are expected at one sequence or across several sequences.
	 * 
	 * @return a List of Field58A objects or Collections.emptyList() if none is not found
	 * @see SwiftTagListBlock#getTagsByName(String)
	 * @throws IllegalStateException if SwiftMessage object is not initialized
	 */
	public List getField58A() {
		if (getSwiftMessage() == null) {
			throw new IllegalStateException("SwiftMessage was not initialized");
		}
		if (getSwiftMessage().getBlock4() == null) {
			log.info("block4 is null");
			return Collections.emptyList();
		} else {
			final Tag[] tags = getSwiftMessage().getBlock4().getTagsByName("58A");
			final List result = new ArrayList();
			for (int i=0; iCollections.emptyList() if none is found.

	 * Multiple occurrences of field 58D at MT304 are expected at one sequence or across several sequences.
	 * 
	 * @return a List of Field58D objects or Collections.emptyList() if none is not found
	 * @see SwiftTagListBlock#getTagsByName(String)
	 * @throws IllegalStateException if SwiftMessage object is not initialized
	 */
	public List getField58D() {
		if (getSwiftMessage() == null) {
			throw new IllegalStateException("SwiftMessage was not initialized");
		}
		if (getSwiftMessage().getBlock4() == null) {
			log.info("block4 is null");
			return Collections.emptyList();
		} else {
			final Tag[] tags = getSwiftMessage().getBlock4().getTagsByName("58D");
			final List result = new ArrayList();
			for (int i=0; iCollections.emptyList() if none is found.

	 * Multiple occurrences of field 58J at MT304 are expected at one sequence or across several sequences.
	 * 
	 * @return a List of Field58J objects or Collections.emptyList() if none is not found
	 * @see SwiftTagListBlock#getTagsByName(String)
	 * @throws IllegalStateException if SwiftMessage object is not initialized
	 */
	public List getField58J() {
		if (getSwiftMessage() == null) {
			throw new IllegalStateException("SwiftMessage was not initialized");
		}
		if (getSwiftMessage().getBlock4() == null) {
			log.info("block4 is null");
			return Collections.emptyList();
		} else {
			final Tag[] tags = getSwiftMessage().getBlock4().getTagsByName("58J");
			final List result = new ArrayList();
			for (int i=0; i