@Transient not working in hibernate

Much depends on how you "integrated" this field in your Entity or class hierarchy. Moreover, field vs. property-access could cause an issue for your setting. See this post for a detailed explanation.

In your case, I could imagine that you either:

1. mixed field and property-access in your entity inheritance strategy
2. use XML-based configuration for Hibernate in your application.

In both cases the JPA 2.0/2.1 specification clearly states in Section 2.3.1:

It is an error if a default access type cannot be determined and an access type is not explicitly specified by means of annotations or the XML descriptor. The behavior of applications that mix the placement of annotations on fields and properties within an entity hierarchy without explicitly specifying the Access annotation is undefined.

Please check that your persistent Entity classes have either field OR property-based annotations.

Can you try creating setter and getter for the field and annotate the get method with @Transient, as follows:

private String ldapIdTemp;

 @Transient
 public String getLdapIdTemp() {
    return ldapIdTemp;
 }

 public void setLdapIdTemp(String ldapIdTemp) {
    this.ldapIdTemp = ldapIdTemp;
 }