public class Office{
	private String name;
	private List<Branch> branch;
}

public class Branch{
	private String nameBranch;
	private List<Employee> employee;
	private List<String> userValue;	
}

public class Employee{
	private String nameEmployee;
	private List<Integer> listInt;	
	private int count;
	private List<User> user;	
}

public class User{
	private String nameUser;
	private int count;
	private List<String> userValue;	
}

public static void main(String[] args){
		
		Office office1 = new Office();
		Office office2 = new Office();
		
		isEqual(office1, office2);	
	}	
		
	public boolean isEqual(Office office1, Office office2){
		
		if (office1 != null && office2 != null){
			
			List<Branch> listBranch1 = office1.getBranch();
			List<Branch> listBranch2 = office2.getBranch();
		
			for (Branch branch1 : listBranch1) {
				for (Branch branch2 : listBranch2) {
					if(branch1.getNameBranch != null && branch2.getNameBranch != null && branch1.getNameBranch.equals(branch2.getNameBranch)){
						
						List<Employee> listEmployee1 = branch1.getEmployee();
						List<Employee> listEmployee2 = branch2.getEmployee();
						
						for (Employee employee1 : listEmployee1) {
							for (Employee employee2 : listEmployee2) {
							   
							   if(employee1.getNameBranch != null && employee2.getNameBranch != null && employee1.getNameBranch.equals(employee2.getNameBranch)){
								   
								   List<User> listUser1 = employee1.getUser();
								   List<User> listUser2 = employee2.getUser();
								   
								   /**
								   * 
								   * и так далее...
								   *
								   */
								   								   
							   }
							}
						}
					}					  
				}
			}
		}
		 
	}