java.util.Set, java.util.List Serializable issue

Question

java.util.Set , java.util.List and other Collection interfaces are not serializable. Require a simple, direct solution to use this in a serializable POJO.

public class Employee implements Serializable{
    private int id;
    private String name;
    private Set<Address> address= new HashSet<Address>;
}

possible duplicate of [How to Serialize a list in java?](http://stackoverflow.com/questions/1387954/how-to-serialize-a-list-in-java) — Raman Shrivastava, Jun 21 '15 at 14:54

Anand S Kumar · Answer 1 · 2015-06-21T15:21:49.703

1

HashSet is serializable [Documentation] as long as all the objects it contains are serializable, so you need to make sure that Address class is serializable.

edited Jun 21 '15 at 15:21

answered Jun 21 '15 at 14:57

Anand S Kumar

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score 0 · Answer 2 · answered Jun 21 '15 at 15:00

0

In this particular case there are two solutions. One is the approach used in the possible duplicate's answers. The other is to make the field type HashSet<Address> rather than Set<Address>. The field type should be the least specific type that supports all the features you intend to use.

answered Jun 21 '15 at 15:00

Patricia Shanahan

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Even with `Set
` he should not get any error, if `Address` is serializable.
– Anand S Kumar Jun 21 '15 at 15:21

java.util.Set, java.util.List Serializable issue

2 Answers2