import org.apache.commons.lang3.builder.HashCodeBuilder;
import org.apache.commons.lang3.builder.ToStringBuilder;
import org.apache.commons.lang3.builder.ToStringStyle;
@Entity
@Table
<BUG>@Inheritance(strategy = InheritanceType.TABLE_PER_CLASS)</BUG>
public class TreeFolder extends TreeNode {
private static final long serialVersionUID = 1L;
<BUG>private Boolean expanded;</BUG>
@ManyToMany

import org.apache.commons.lang3.builder.HashCodeBuilder;
import org.apache.commons.lang3.builder.ToStringBuilder;
import org.apache.commons.lang3.builder.ToStringStyle;
@Entity
@Table
public class TreeFolder extends TreeNode {
private static final long serialVersionUID = 1L;
@ManyToMany
