CODEWITHSUNDEEP
datanucleus
eastwater
eastwater

Reputation: 5620

dataNucleus enhancement runtime error: dnSetid NoSuchMethodError

dataNucleus 5.1.1: dnSetid NoSuchMethodError

@MappedSuperclass
public class Foo {

    @Transient
    public Long getId() {
        ...
    }

    public void setId(Long id) {
        ...
    }
}

@Entity
public class Bar extends Foo {
    @Id
    @GeneratedValue(strategy=GenerationType.TABLE, generator="gen")
    @TableGenerator(name="gen", ...)
    public Long getId() {
       ...
    }
}

java.lang.NoSuchMethodError: No virtual method dnSetid(Long) in class com.example.Bar

    at com.example.Bar.dnCopyKeyFieldsFromObjectId(Unknown Source:15)

    at com.example.Bar.dnNewInstance(Unknown Source:10)

    at org.datanucleus.enhancer.EnhancementHelper.newInstance(EnhancementHelper.java:178)

at org.datanucleus.state.StateManagerImpl.initialiseForHollow(StateManagerImpl.java:373)

at org.datanucleus.state.ObjectProviderFactoryImpl.newForHollow(ObjectProviderFactoryImpl.java:113)

    at org.datanucleus.ExecutionContextImpl.findObject(ExecutionContextImpl.java:3194)

    at org.datanucleus.store.rdbms.query.PersistentClassROF.findObjectWithIdAndLoadFields(PersistentClassROF.java:458)

    at org.datanucleus.store.rdbms.query.PersistentClassROF.getObject(PersistentClassROF.java:364)

    at org.datanucleus.store.rdbms.query.ForwardQueryResult.nextResultSetElement(ForwardQueryResult.java:180)

    at org.datanucleus.store.rdbms.query.ForwardQueryResult$QueryResultIterator.next(ForwardQueryResult.java:408)

    at org.datanucleus.store.rdbms.query.ForwardQueryResult.processNumberOfResults(ForwardQueryResult.java:136)

    at org.datanucleus.store.rdbms.query.ForwardQueryResult.advanceToEndOfResultSet(ForwardQueryResult.java:164)

    at org.datanucleus.store.rdbms.query.ForwardQueryResult.closingConnection(ForwardQueryResult.java:290)

    at org.datanucleus.store.query.AbstractQueryResult.disconnect(AbstractQueryResult.java:105)

    at org.datanucleus.store.rdbms.query.AbstractRDBMSQueryResult.disconnect(AbstractRDBMSQueryResult.java:251)

    at org.datanucleus.store.rdbms.query.JPQLQuery$2.managedConnectionPreClose(JPQLQuery.java:654)

    at org.datanucleus.store.rdbms.ConnectionFactoryImpl$ManagedConnectionImpl.close(ConnectionFactoryImpl.java:532)

    at org.datanucleus.store.connection.AbstractManagedConnection.release(AbstractManagedConnection.java:83)

    at org.datanucleus.store.rdbms.ConnectionFactoryImpl$ManagedConnectionImpl.release(ConnectionFactoryImpl.java:371)

    at org.datanucleus.store.rdbms.query.JPQLQuery.performExecute(JPQLQuery.java:730)

    at org.datanucleus.store.query.Query.executeQuery(Query.java:1966)

    at org.datanucleus.store.query.Query.executeWithMap(Query.java:1873)

dnSetid should be added by enhancement. Decompiled Bar.class: there is no such method. It contains dnGetid() and other methods dn****.

Upvotes: 0

Views: 101

Answers (1)

user8558216
user8558216

Reputation:

The only way of overriding is to override BOTH getter AND setter. Likely the enhancer relies on both being there, whether it is for a defined property or an overridden property.

Upvotes: 2

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