title: hibernate one to many annotation confusion
body: <p>I'm not understanding how to do something that is probably very easy to do.  I have a table named "Composer".  A "Composer" can have many compositions ("Composition" table).  I get the following error when I run this through Spring Boot:</p>
  
  <pre><code>19:11:40 web.1  | Caused by: org.hibernate.AnnotationException: 
  mappedBy reference an unknown target entity property: 
  com.zack.music.domain.Composition.composition in com.zack.music.domain.Composer.compositions
  </code></pre>
  
  <p>Below are my entity classes.  What am I doing wrong here?</p>
  
  <pre><code>package com.zack.music.domain;
  
  import javax.persistence.*;
  import java.io.Serializable;
  import java.sql.Date;
  import java.util.*;
  
  @Entity
  public class Composer implements Serializable {
  
      @Id
      private String name;
  
      private Date birth;
      private Date death;
  
      @OneToMany(mappedBy="composition")
      private List&lt;Composition&gt; compositions;
  
      protected Composer() { }
  
      public Composer(String name, Date birth, Date death) {
          this.name = name;
          this.birth = birth;
          this.death = death;
      }
  
      public String getName() {
          return name;
      }
  
      public void setName(String name) {
          this.name = name;
      }
  
      public Date getBirth() {
          return birth;
      }
  
      public void setBirth(Date birth) {
          this.birth = birth;
      }
  
      public Date getDeath() {
          return death;
      }
  
      public void setDeath(Date death) {
          this.death = death;
      }
  
      public List&lt;Composition&gt; getCompositions() {
          return compositions;
      }
  
      public void setCompositions(List&lt;Composition&gt; compositions) {
          this.compositions = compositions;
      }
  }
  
  @Entity
  public class Composition implements Serializable {
  
      @Id
      @Column(nullable = false)
      private String name;
  
      @ManyToOne  
      private Composer composer;
  
      protected Composition() { }
  
      public Composition(String name, Composer composer) {
          this.name = name;
          this.composer = composer;
      }
  
      public String getName() {
          return name;
      }
  
      public void setName(String name) {
          this.name = name;
      }
  
      public Composer getComposer() {
          return composer;
      }
  
      public void setComposer(Composer composer) {
          this.composer = composer;
      }
  }
  </code></pre>