I am having a problem when I start the JBoss server.
The server keeps failing because of an unknown entity.

this is the code, its a bunch of getters and setters thats all. If you can help why is the server failing that would be great. Please I need to solve this issue fast. I have 2 instance variables projectID and projectID1. Please look at the error below
Many Thanks

//This is the error
State: FAILED
 Reason: org.hibernate.AnnotationException: @OneToOne or @ManyToOne on EntityBean.KnowledgeBase.projectID references an unknown entity: java.lang.Integer

/**
 * Entity class KnowledgeBase
 *
 * @author amer.ramamni
 */
@Entity
@Table(name = "tblKnowledgeBase")
@NamedQueries( {
 @NamedQuery(name = "KnowledgeBase.findByKnowledgeID", query = "SELECT k FROM KnowledgeBase k WHERE k.knowledgeID = :knowledgeID"),
 @NamedQuery(name = "KnowledgeBase.findByKnowledgeName", query = "SELECT k FROM KnowledgeBase k WHERE k.knowledgeName = :knowledgeName"),
 @NamedQuery(name = "KnowledgeBase.findByKnowledgeCategory", query = "SELECT k FROM KnowledgeBase k WHERE k.knowledgeCategory = :knowledgeCategory"),
 @NamedQuery(name = "KnowledgeBase.findByDeleted", query = "SELECT k FROM KnowledgeBase k WHERE k.deleted = :deleted")
 })
public class KnowledgeBase implements Serializable {

 @Id
 @Column(name = "knowledgeID", nullable = false)
 private Integer knowledgeID;

 @Column(name = "knowledgeName", nullable = false)
 private String knowledgeName;

 @Column(name = "knowledgeCategory")
 private String knowledgeCategory;

 @Column(name = "deleted", nullable = false)
 private int deleted;

 @JoinColumn(name = "projectID", referencedColumnName = "projectID")
 @ManyToOne
 private Project projectID;

 @JoinColumn(name = "projectID", referencedColumnName = "projectID")
 @ManyToOne
 private Project projectID1;

 /** Creates a new instance of KnowledgeBase */
 public KnowledgeBase() {
 }

 public KnowledgeBase(Integer knowledgeID) {
 this.knowledgeID = knowledgeID;
 }

 public KnowledgeBase(Integer knowledgeID, String knowledgeName, int deleted) {
 this.knowledgeID = knowledgeID;
 this.knowledgeName = knowledgeName;
 this.deleted = deleted;
 }

 public Integer getKnowledgeID() {
 return this.knowledgeID;
 }

 public void setKnowledgeID(Integer knowledgeID) {
 this.knowledgeID = knowledgeID;
 }

 public String getKnowledgeName() {
 return this.knowledgeName;
 }

 public void setKnowledgeName(String knowledgeName) {
 this.knowledgeName = knowledgeName;
 }

 public String getKnowledgeCategory() {
 return this.knowledgeCategory;
 }

 public void setKnowledgeCategory(String knowledgeCategory) {
 this.knowledgeCategory = knowledgeCategory;
 }

 public int getDeleted() {
 return this.deleted;
 }

 public void setDeleted(int deleted) {
 this.deleted = deleted;
 }

 public Project getProjectID() {
 return this.projectID;
 }

 public void setProjectID(Project projectID) {
 this.projectID = projectID;
 }

 public Project getProjectID1() {
 return this.projectID1;
 }

 public void setProjectID1(Project projectID1) {
 this.projectID1 = projectID1;
 }

 @Override
 public int hashCode() {
 int hash = 0;
 hash += (this.knowledgeID != null ? this.knowledgeID.hashCode() : 0);
 return hash;
 }

 @Override
 public boolean equals(Object object) {
 // TODO: Warning - this method won't work in the case the id fields are not set
 if (!(object instanceof KnowledgeBase)) {
 return false;
 }
 KnowledgeBase other = (KnowledgeBase)object;
 if (this.knowledgeID != other.knowledgeID && (this.knowledgeID == null || !this.knowledgeID.equals(other.knowledgeID))) return false;
 return true;
 }

 @Override
 public String toString() {
 return "EntityBean.KnowledgeBase[knowledgeID=" + knowledgeID + "]";
 }

}