datastore.save - Mapping Exception due to ClassCast Exception

[Anirudh Madhavan]

I have a Java class which has the following structure.

    class Item{

    ...

    @Embedded("zpl")

    public List<ZplList> zplList = new ArrayList<ZplList>();

    @Embedded("rohs")

    public List<RohsList> rohsList = new ArrayList<RohsList>();

    ...

    //Getters and setters

    }

My ZplList class looks like this.

    

    @Embedded

    public class ZplList {

    @Property("csass")

    @org.javers.core.metamodel.annotation.Id

    public String zpl;

    @Property("csasd")

public Date startDate;

@Property("csaed")

public Date endDate;

    @Override

public boolean equals(Object object) {

ZplList obj = (ZplList) object;

if (this.zpl==null ? obj.zpl!=null : !this.zpl.equals(obj.zpl)) {

return false;

}

if (this.startDate==null ? obj.startDate!=null : 

        !this.startDate.equals(obj.startDate)) {

return false;

}

return true;

}

@Override

public int hashCode() {

int hash = 3;

hash = 7 * hash + this.zpl.hashCode();

if(this.startDate!=null)

hash = 7 * hash + this.startDate.hashCode();

return hash;

}

    }

My RohsList class looks similar to ZplList class.

    @Embedded

    public class RohsList {

@Property("rohs")

public String rohs;

@Property("rhssd")

public Date startDate;

@Property("rhsed")

public Date endDate;

@Override

public boolean equals(Object object) {

RohsList obj = (RohsList) object;

if (this.rohs==null ? obj.rohs!=null : !this.rohs.equals(obj.rohs)) {

return false;

}

if (this.startDate==null ? obj.startDate!=null : 

        !this.startDate.equals(obj.startDate)) {

return false;

}

return true;

}

@Override

public int hashCode() {

int hash = 3;

if(this.rohs!=null)

hash = 7 * hash + this.rohs.hashCode();

if(this.startDate!=null)

hash = 7 * hash + this.startDate.hashCode();

return hash;

}

    }

When I try to save an Item object using Morphia, I am getting an exception as follows in the datastore.save() call. Is there any issue with my annotations? Please suggest a fix for this.

    14:36:29,771 ERROR [stderr] (http--127.0.0.1-8080-3) org.mongodb.morphia.mapping.MappingException: Error mapping field:com.mdm.ui.web.domain.Item.rohsList

    

    14:36:29,773 ERROR [stderr] (http--127.0.0.1-8080-3) at org.mongodb.morphia.mapping.Mapper.toDBObject(Mapper.java:906)

    

    14:36:29,774 ERROR [stderr] (http--127.0.0.1-8080-3) at org.mongodb.morphia.mapping.Mapper.toDBObject(Mapper.java:535)

    

    14:36:29,774 ERROR [stderr] (http--127.0.0.1-8080-3) at org.mongodb.morphia.DatastoreImpl.entityToDBObj(DatastoreImpl.java:1322)

    

    14:36:29,775 ERROR [stderr] (http--127.0.0.1-8080-3) at org.mongodb.morphia.DatastoreImpl.save(DatastoreImpl.java:1219)

    

    14:36:29,775 ERROR [stderr] (http--127.0.0.1-8080-3) at org.mongodb.morphia.DatastoreImpl.save(DatastoreImpl.java:704)

    

    14:36:29,776 ERROR [stderr] (http--127.0.0.1-8080-3) at org.mongodb.morphia.DatastoreImpl.save(DatastoreImpl.java:698)

    

    14:36:29,777 ERROR [stderr] (http--127.0.0.1-8080-3) at com.mdm.ui.logic.dao.impl.SingleItemDaoImpl.submitItem(SingleItemDaoImpl.java:1532)

    

    14:36:29,797 ERROR [stderr] (http--127.0.0.1-8080-3) Caused by: java.lang.ClassCastException: com.mdm.ui.web.domain.ZplList cannot be cast to com.mdm.ui.web.domain.RohsList

    

    14:36:29,797 ERROR [stderr] (http--127.0.0.1-8080-3) at com.mdm.ui.web.domain.RohsList.equals(RohsList.java:57)

    

    14:36:29,798 ERROR [stderr] (http--127.0.0.1-8080-3) at java.util.HashMap.put(Unknown Source)

    

    14:36:29,798 ERROR [stderr] (http--127.0.0.1-8080-3) at org.mongodb.morphia.mapping.Mapper.toDBObject(Mapper.java:910)

    

    14:36:29,798 ERROR [stderr] (http--127.0.0.1-8080-3) at org.mongodb.morphia.mapping.Mapper.toDBObject(Mapper.java:535)

    

    14:36:29,799 ERROR [stderr] (http--127.0.0.1-8080-3) at org.mongodb.morphia.mapping.EmbeddedMapper.writeCollection(EmbeddedMapper.java:235)

    

    14:36:29,811 ERROR [stderr] (http--127.0.0.1-8080-3) at org.mongodb.morphia.mapping.EmbeddedMapper.toDBObject(EmbeddedMapper.java:88)

    

    14:36:29,812 ERROR [stderr] (http--127.0.0.1-8080-3) at org.mongodb.morphia.mapping.Mapper.writeMappedField(Mapper.java:793)

    

    14:36:29,813 ERROR [stderr] (http--127.0.0.1-8080-3) at org.mongodb.morphia.mapping.Mapper.toDBObject(Mapper.java:904)

[Anirudh Madhavan]

Using Morphia 1.2.0 and JRE7.