[OPENJPA-2072] InvalidStateException deleting an instance with a timestamp in its primary key

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.2.1, 1.2.2, 1.2.3
• Fix Version/s: 1.2.3, 2.0.2, 2.1.2, 2.2.1, 2.3.0
• Environment: Linux, JUnit + Spring and HSQLDB in a case; Windows, WebSphere and DB2 in another case
• Patch Info: Patch Available
• Assignee: Helen Xu
• Reporter: Ernesto Ricci
• Created: 09/Nov/11 08:12
• Updated: 15/Sep/16 14:28
• Resolved: 01/Jun/12 17:37

Description

Attempting to remove an instance that has a timestamp field in its primary key results in this error:
org.apache.openjpa.persistence.InvalidStateException: Operation attempted on a deleted instance.

Suppose I have this table:
CREATE TABLE test_tsp (
t Timestamp,
desc char(30)
)

containing just the following row:
INSERT INTO test_tsp(T,DESC) VALUES ( CURRENT_TIMESTAMP, 'one')

the table is mapped to this JPA Entity
@Entity
@Table(name="TEST_TSP")
public class TestTsp implements Serializable {
private static final long serialVersionUID = -5756434331459759089L;
@Column(name="T")
@Id
private Timestamp idTsp;

@Column(name="DESC")
private String desc;

public TestTsp()

{ super(); }

...getters and setters here...
}

and the following code attempts a delete of the row I've inserted

Query query = em.createQuery("select t from TestTsp t where t.desc='one'");
List<TestTsp> list = query.getResultList();
for (TestTsp t : list)

{ em.remove(t); }

Here is the error I get:
...
Caused by: <openjpa-1.2.2-r422266:898935 nonfatal user error> org.apache.openjpa.persistence.InvalidStateException: Operation attempted on a deleted instance.
FailedObject: org.apache.openjpa.enhance.provatsp$TestTsp$pcsubclass@3c0b655a
at org.apache.openjpa.kernel.PCState.error(PCState.java:443)
at org.apache.openjpa.kernel.PDeletedState.beforeOptimisticWrite(PDeletedState.java:76)
at org.apache.openjpa.kernel.StateManagerImpl.dirty(StateManagerImpl.java:1575)
at org.apache.openjpa.kernel.StateManagerImpl.dirty(StateManagerImpl.java:1515)
at org.apache.openjpa.util.Proxies.dirty(Proxies.java:66)
at org.apache.openjpa.util.java$sql$Timestamp$proxy.setNanos(Unknown Source)
at org.apache.openjpa.jdbc.sql.DBDictionary.setTimestamp(DBDictionary.java:1144)
at org.apache.openjpa.jdbc.sql.DBDictionary.setTyped(DBDictionary.java:1282)
at org.apache.openjpa.jdbc.sql.RowImpl.flush(RowImpl.java:890)
at org.apache.openjpa.jdbc.sql.RowImpl.flush(RowImpl.java:850)
at org.apache.openjpa.jdbc.kernel.PreparedStatementManagerImpl.flushAndUpdate(PreparedStatementManagerImpl.java:118)
at org.apache.openjpa.jdbc.kernel.BatchingPreparedStatementManagerImpl.flushAndUpdate(BatchingPreparedStatementManagerImpl.java:82)
at org.apache.openjpa.jdbc.kernel.PreparedStatementManagerImpl.flushInternal(PreparedStatementManagerImpl.java:89)
at org.apache.openjpa.jdbc.kernel.PreparedStatementManagerImpl.flush(PreparedStatementManagerImpl.java:72)
at org.apache.openjpa.jdbc.kernel.ConstraintUpdateManager.flush(ConstraintUpdateManager.java:543)
at org.apache.openjpa.jdbc.kernel.ConstraintUpdateManager.flush(ConstraintUpdateManager.java:119)
at org.apache.openjpa.jdbc.kernel.BatchingConstraintUpdateManager.flush(BatchingConstraintUpdateManager.java:59)
at org.apache.openjpa.jdbc.kernel.AbstractUpdateManager.flush(AbstractUpdateManager.java:89)
at org.apache.openjpa.jdbc.kernel.AbstractUpdateManager.flush(AbstractUpdateManager.java:72)
at org.apache.openjpa.jdbc.kernel.JDBCStoreManager.flush(JDBCStoreManager.java:721)
at org.apache.openjpa.kernel.DelegatingStoreManager.flush(DelegatingStoreManager.java:130)
... 40 more

N.B.: the error doesn't happen if the primary key annotation (@Id) is moved on the other field of the entity, which is not a timestamp but a char:
@Column(name="T")
private Timestamp idTsp;

@Column(name="DESC")
@Id
private String desc;