Hibernate : String Index Out Of Bounds Exception

Question

I have a column in a MySql table that is defined as char(1).That column is having an empty value (not null). When reading this in using Hibernate, it throws an exception:

java.lang.StringIndexOutOfBoundsException: String index out of range: 0 at java.lang.String.charAt(String.java:658)

This is my domain class of that table:

@Entity
@Table(name="ACTIONS",schema="IPLAN")
public class Actions
{
@Id
@GeneratedValue
@Column(name="ID")
private long id;

@Column(name="TOTAL_HOURS")
private int hours;

@Column(name="TYPE")
private char type;
//getters and setters
}

Update :

I 'am facing this problem after updating the table.The query used is:

update actions set type=''

Please help!

Answer 1

It seems its value is not blank.

Check if you have 'SPACE' instead of blank.

Answer 2

This issue due to character field in table for which you are using char as a data type so try changing char datatype to TinyInt(1) .

This might help you in deep understanding.

Answer 3

我有类似的问题能够通过使用长度= 1的字符串来修复它