How to save a Character in Spring Data Neo4j - spring-security

Question

I have a NodeEntity Class AutorizationPermission
public class AutorizationPermission extends BasePermission {
public static final Permission READ = new AutorizationPermission(1 << 0,'R'); // 1
public static final Permission WRITE = new AutorizationPermission(1 << 1, 'W'); // 2
public static final Permission CREATE = new AutorizationPermission(1 << 2, 'C'); // 4
public static final Permission DELETE = new AutorizationPermission(1 << 3, 'D'); // 8
public static final Permission ADMINISTRATION = new AutorizationPermission(1 << 4, 'A'); // 16
protected AutorizationPermission(int mask) {
super(mask);
}
protected AutorizationPermission(int mask, char code) {
super(mask, code);
}
public AutorizationPermission() {
super(0);
}
}
But while persisting the this entity which is related from another NodeEntity
the following error comes
java.lang.RuntimeException: Unsupported value type class java.lang.Character. Supported value types are all java primitives (byte, char, short, int, long, float
, double) and String, as well as arrays of all those types.....
The Associated #NodeEntity class is
#NodeEntity
#JsonSerialize(using=DesignationSerializer.class)
#JsonDeserialize(using=DesignationDeserializer.class)
public class Role{
#GraphId
private Long id;
#RelatedTo(type="ROLE_PERMISSIONS", direction=Direction.OUTGOING)
#Fetch
private Set<AutorizationPermission> authPermissions=new HashSet<AutorizationPermission>();
public Set<AutorizationPermission> getAuthPermissions() {
return this.authPermissions;
}
public void setAuthPermissions(Set<AutorizationPermission> authPermissions) {
this.authPermissions=authPermissions;
}
}