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<td class="page-title-pattern-first-line " style="padding: 0px; border-collapse: collapse; font-family: Arial, sans-serif; font-size: 14px; padding-top: 10px"> <a href="https://hibernate.atlassian.net/browse/HHH" style="color: #3b73af; text-decoration: none">Hibernate ORM</a> / <a href="https://hibernate.atlassian.net/browse/HHH-10751" style="color: #3b73af; text-decoration: none"><img src="cid:jira-generated-image-avatar-1bbd717c-c65f-48dd-8d92-9d0ef60da6ae" height="16" width="16" border="0" align="absmiddle" alt="Bug" style="vertical-align: text-bottom"></a> <a href="https://hibernate.atlassian.net/browse/HHH-10751" style="color: #3b73af; text-decoration: none">HHH-10751</a> </td>
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<th style="color: #707070; font: normal 14px/20px Arial, sans-serif; text-align: left; vertical-align: top; padding: 2px 0">Change By:</th>
<td style="padding: 0px; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> <a class="user-hover" rel="RemoM" id="email_RemoM" href="https://hibernate.atlassian.net/secure/ViewProfile.jspa?name=RemoM" style="color:#6c797f;; color: #3b73af; text-decoration: none">RemoM</a> </td>
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<td class="text-paragraph-pattern-container mobile-resize-text " style="padding: 0px; border-collapse: collapse; padding: 0 0 10px 0"> <span class="diffcontext">The subsequent entity has to attributes "parent" and "children":<br>- both are of primitive type.<br>- "children" is an element collection referencing "parent"<br>- "parent" is nullable <br><br>However, the subsequent example below does not work anymore in Hibernate 5.0.4 and 5.1.0. It used to work fine in 4.3. For some reason, it expects parent to be</span> <span class="diffaddedchars" style="background-color:#ddfade;"> not-</span> <span class="diffcontext"> nullable. Checking the metadata (org.hibernate.mapping.Property) shows that value is of Type SimpleValue and in there is a column</span> <span class="diffaddedchars" style="background-color:#ddfade;"> "parent"</span> <span class="diffcontext"> that is not nullable</span> <span class="diffaddedchars" style="background-color:#ddfade;"> anymore</span> <span class="diffcontext">.</span> <span class="diffaddedchars" style="background-color:#ddfade;"> At some point a nullable "parent" column is created, but it seems to get overriden by the element table of "children".</span> <span class="diffcontext"><br><br>{code}<br>import java.util.HashSet;<br>import java.util.Set;<br><br>import javax.persistence.Access;<br>import javax.persistence.AccessType;<br>import javax.persistence.CollectionTable;<br>import javax.persistence.Column;<br>import javax.persistence.ElementCollection;<br>import javax.persistence.Entity;<br>import javax.persistence.FetchType;<br>import javax.persistence.Id;<br>import javax.persistence.JoinColumn;<br>import javax.persistence.Table;<br>import javax.validation.constraints.NotNull;<br>import javax.validation.constraints.Size;<br><br><br>@Entity<br>@Access(AccessType.FIELD)<br>@Table(name = "PCY_M_PARENT_CHILD_CD")<br><br>public class ParentChildCd {<br><br> @Id<br> @Column(name = "CODE", nullable = false, length = 50)<br> @Size(max = 50)<br> private String code;<br><br> public String getCode() {<br> return code;<br> }<br><br> public void setCode(String __value) { // NOSONAR<br> this.code = __value;<br> }<br><br> @Column(name = "ACTIVE", nullable = false)<br> @NotNull<br> private boolean active;<br><br> public boolean isActive() {<br> return active;<br> }<br><br> public void setActive(boolean __value) { // NOSONAR<br> this.active = __value;<br> }<br><br> @Column(name = "PARENT", nullable = true)<br> private String parent;<br><br> public String getParent() {<br> return parent;<br> }<br><br> public void setParent(String __value) {<br> this.parent = __value;<br> }<br><br> @Column(name = "code", nullable = true)<br> @ElementCollection(fetch = FetchType.EAGER)<br> @CollectionTable(name = "PCY_M_PARENT_CHILD_CD", joinColumns = { @JoinColumn(name = "PARENT", referencedColumnName = "code") })<br> private Set<String> children = new HashSet<String>();<br><br> public Set<String> getChildren() {<br> return children;<br> }<br><br> public void setChildren(Set<String> __value) {<br> this.children = __value;<br> }<br><br> public boolean equals(Object obj) {<br> return obj == this || (obj instanceof ParentChildCd && getCode() != null && getCode().equals(((ParentChildCd) obj).getCode()));<br> }<br><br> public int hashCode() {<br> if (getCode() == null)<br> return super.hashCode();<br> return getCode().hashCode();<br> }<br><br>}<br>{code}<br><br><br>{code}<br>@Test<br> public void testParentChild() {<br> ParentChildCd m = new ParentChildCd();<br> m.setCode("a");<br> m.setParent(null);<br> em.persist(m);<br> em.flush();<br> }<br>{code}</span> </td>
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