I am having a issue with onetomany with composite primary key, and I am trying to solve this for some time with no luck

Parent Class

@Entity
@Table(name = "dwf_storagegroupsnapshot")
public class DMFStorageGroupSnapshotFact extends SPMFact implements Serializable
{
@Id
private LogicalSnapshotFactPK id;

@Column(name="devicecount")
private Integer deviceCount;

@Column(name="devicemetacount")
private Integer metaCount;

@Column(name="capacity")
private Integer capacity;

@OneToMany(cascade=CascadeType.ALL,fetch=FetchType.EAGER)
@JoinColumns({
@JoinColumn(name="arraykey",referencedColumnName="arraykey",nullable=false,insertable=true,updatable=true),
@JoinColumn(name="timekey",referencedColumnName="timekey",nullable=false,insertable=true,updatable=true),
@JoinColumn(name="logicalkey",referencedColumnName="logicalkey",nullable=false,insertable=true,updatable=true)
})
private List<DMFStorageTierSnapshotFact> tierFacts;

/**
* Description: Ctor
*/
public DMFStorageGroupSnapshotFact()
{ }

---> Removed getter and setters
}

Child Class -

@Entity
@Table(name = "dwf_storagetiersnapshot")
@IdClass(TierSnapshotFactPK.class)
public class DMFStorageTierSnapshotFact implements Serializable
{

@Id
@Column(name="arraykey",insertable=false,updatable=false)
private Long arrayKey;

@Id
@Column(name="timekey",insertable=false,updatable=false)
private Long timeKey;

@Id
@Column(name="logicalkey",insertable=false,updatable=false)
private Long logicalKey;

@Id
@Column(name="tiernumber")
private Integer tierNumber;

@Column(name="tiername")
private String tierName;

@Column(name="target")
private Integer target;

@Column(name="actual")
private Integer actual;

@Column(name="tiertype")
private String tierType;

@ManyToOne
@JoinColumns({
@JoinColumn(name="arraykey", insertable=false, updatable=false),
@JoinColumn(name="timekey", insertable=false, updatable=false),
@JoinColumn(name="logicalkey", insertable=false, updatable=false)
})
private DMFStorageGroupSnapshotFact sgSnapshotFact;

public DMFStorageTierSnapshotFact()
{}

}

1. First issue when I generate query using these classes keys are not mapped correctly in OneToMany relation it comes out some thing like "left outer join dwf_storagetiersnapshot tierfacts5_ on this_.arrayKey=tierfacts5_.arraykey and this_.logicalKey=tierfacts5_.timekey and this_.timeKey=tierfacts5_.logicalkey"

2. Second all the primary key columns from the child table is repeated in the select.

Appreciate any help on this.

Thanks.