code: protected static void autoBoxing(MethodVisitor mv, Type fieldType) {
  		switch (fieldType.getSort()) {
  		case Type.BOOLEAN:
  			mv.visitMethodInsn(INVOKESTATIC, "java/lang/Boolean", "valueOf", "(Z)Ljava/lang/Boolean;");
  			break;
  		case Type.BYTE:
  			mv.visitMethodInsn(INVOKESTATIC, "java/lang/Byte", "valueOf", "(B)Ljava/lang/Byte;");
  			break;
  		case Type.CHAR:
  			mv.visitMethodInsn(INVOKESTATIC, "java/lang/Character", "valueOf", "(C)Ljava/lang/Character;");
  			break;
  		case Type.SHORT:
  			mv.visitMethodInsn(INVOKESTATIC, "java/lang/Short", "valueOf", "(S)Ljava/lang/Short;");
  			break;
  		case Type.INT:
  			mv.visitMethodInsn(INVOKESTATIC, "java/lang/Integer", "valueOf", "(I)Ljava/lang/Integer;");
  			break;
  		case Type.FLOAT:
  			mv.visitMethodInsn(INVOKESTATIC, "java/lang/Float", "valueOf", "(F)Ljava/lang/Float;");
  			break;
  		case Type.LONG:
  			mv.visitMethodInsn(INVOKESTATIC, "java/lang/Long", "valueOf", "(J)Ljava/lang/Long;");
  			break;
  		case Type.DOUBLE:
  			mv.visitMethodInsn(INVOKESTATIC, "java/lang/Double", "valueOf", "(D)Ljava/lang/Double;");
  			break;
  		}
  	}
docs: Append the call of proper autoboxing method for the given primitif type.