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<td class="page-title-pattern-first-line " style="padding: 0; border-collapse: collapse; font-family: Arial, sans-serif; font-size: 14px; padding-top: 10px"> <a href="https://hibernate.atlassian.net/browse/HHH?atlOrigin=eyJpIjoiMmJiNWMxNzc5ZTY5NGZkYmI2YTEwMTZkNjIyZGI3NzgiLCJwIjoiaiJ9" style="color: #3b73af; text-decoration: none">Hibernate ORM</a> / <a href="https://hibernate.atlassian.net/browse/HHH-13248?atlOrigin=eyJpIjoiMmJiNWMxNzc5ZTY5NGZkYmI2YTEwMTZkNjIyZGI3NzgiLCJwIjoiaiJ9" style="color: #3b73af; text-decoration: none"><img src="cid:jira-generated-image-avatar-86ce3505-e6a0-4ffc-9e4b-935c4714b6d6" height="16" width="16" border="0" align="absmiddle" alt="Bug" style="vertical-align: text-bottom"></a> <a href="https://hibernate.atlassian.net/browse/HHH-13248?atlOrigin=eyJpIjoiMmJiNWMxNzc5ZTY5NGZkYmI2YTEwMTZkNjIyZGI3NzgiLCJwIjoiaiJ9" style="color: #3b73af; text-decoration: none">HHH-13248</a> </td>
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<td style="vertical-align: top;; padding: 0; border-collapse: collapse; padding-right: 5px; font-size: 20px; line-height: 30px; mso-line-height-rule: exactly" class="page-title-pattern-header-container"> <span class="page-title-pattern-header" style="font-family: Arial, sans-serif; padding: 0; font-size: 20px; line-height: 30px; mso-text-raise: 2px; mso-line-height-rule: exactly; vertical-align: middle"> <a href="https://hibernate.atlassian.net/browse/HHH-13248?atlOrigin=eyJpIjoiMmJiNWMxNzc5ZTY5NGZkYmI2YTEwMTZkNjIyZGI3NzgiLCJwIjoiaiJ9" style="color: #3b73af; text-decoration: none">@AssociationOverride of foreignKey fails with NPE if joinColumns is not specified as well</a> </span> </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">Created:</th>
<td style="padding: 0; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> 04/Feb/2019 04:10 AM </td>
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<td style="padding: 0; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> <a class="user-hover" rel="patrickruckstuhl" style="color:#6c797f;; color: #3b73af; text-decoration: none" id="email_patrickruckstuhl" href="https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=557058%3A22577098-c67c-405f-947e-176388b07d2b"> Patrick Ruckstuhl </a> </td>
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<td class="text-paragraph-pattern-container mobile-resize-text " style="padding: 0; border-collapse: collapse; padding: 0 0 10px"> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0; margin-top: 0">Having the following mapping</p>
<div class="code panel" style="border-width: 1px;; border: 1px solid #cccccc; background: #f5f5f5; font-size: 12px; line-height: 1.333; font-family: monospace; border: 1px solid #cccccc; -moz-border-radius: 3px; border-radius: 3px; margin: 9px 0">
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<pre class="code-java" style="margin: 10px 0 0; margin-top: 0; max-height: 30em; overflow: auto; white-space: pre-wrap; word-wrap: normal">
@Entity
<span class="code-keyword" style="color: #000091">public</span> <span class="code-keyword" style="color: #000091">class </span>Event {
@Id
@GeneratedValue
<span class="code-keyword" style="color: #000091">private</span> <span class="code-object" style="color: #910091">Long</span> id;
<span class="code-keyword" style="color: #000091">public</span> <span class="code-object" style="color: #910091">Long</span> getId() {
<span class="code-keyword" style="color: #000091">return</span> id;
}
}
@MappedSuperclass
<span class="code-keyword" style="color: #000091">public</span> <span class="code-keyword" style="color: #000091">abstract</span> <span class="code-keyword" style="color: #000091">class </span>AbstractBase {
@OneToOne
@JoinColumn(name = <span class="code-quote" style="color: #009100">"MYEVENT"</span>)
<span class="code-keyword" style="color: #000091">private</span> Event event;
}
@Entity
@AssociationOverride(name = <span class="code-quote" style="color: #009100">"event"</span>, foreignKey = @ForeignKey(name = <span class="code-quote" style="color: #009100">"FK_REAL_EVENT"</span>))
<span class="code-keyword" style="color: #000091">public</span> <span class="code-keyword" style="color: #000091">class </span>RealClass <span class="code-keyword" style="color: #000091">extends</span> AbstractBase {
}
</pre>
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</div> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0">fails with</p>
<div class="code panel" style="border-width: 1px;; border: 1px solid #cccccc; background: #f5f5f5; font-size: 12px; line-height: 1.333; font-family: monospace; border: 1px solid #cccccc; -moz-border-radius: 3px; border-radius: 3px; margin: 9px 0">
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<pre class="code-java" style="margin: 10px 0 0; margin-top: 0; max-height: 30em; overflow: auto; white-space: pre-wrap; word-wrap: normal">
Caused by: java.lang.NullPointerException
at org.hibernate.cfg.annotations.TableBinder.buildAndFillTable(TableBinder.java:512)
at org.hibernate.cfg.annotations.EntityBinder.addJoin(EntityBinder.java:968)
at org.hibernate.cfg.annotations.EntityBinder.addJoin(EntityBinder.java:879)
at org.hibernate.cfg.ClassPropertyHolder.addJoin(ClassPropertyHolder.java:207)
at org.hibernate.cfg.AnnotationBinder.processElementAnnotations(AnnotationBinder.java:1815)
at org.hibernate.cfg.AnnotationBinder.processIdPropertiesIfNotAlready(AnnotationBinder.java:925)
at org.hibernate.cfg.AnnotationBinder.bindClass(AnnotationBinder.java:752)
at org.hibernate.boot.model.source.internal.annotations.AnnotationMetadataSourceProcessorImpl.processEntityHierarchies(AnnotationMetadataSourceProcessorImpl.java:249)
at org.hibernate.boot.model.process.spi.MetadataBuildingProcess$1.processEntityHierarchies(MetadataBuildingProcess.java:222)
at org.hibernate.boot.model.process.spi.MetadataBuildingProcess.complete(MetadataBuildingProcess.java:265)
at org.hibernate.boot.model.process.spi.MetadataBuildingProcess.build(MetadataBuildingProcess.java:83)
at org.hibernate.boot.internal.MetadataBuilderImpl.build(MetadataBuilderImpl.java:418)
at org.hibernate.boot.internal.MetadataBuilderImpl.build(MetadataBuilderImpl.java:87)
at org.hibernate.boot.MetadataSources.buildMetadata(MetadataSources.java:179)
</pre>
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</div> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0">If the joinColumn is added to the override as well, it works fine</p>
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<pre class="code-java" style="margin: 10px 0 0; margin-top: 0; max-height: 30em; overflow: auto; white-space: pre-wrap; word-wrap: normal">
@Entity
@AssociationOverride(name = <span class="code-quote" style="color: #009100">"event"</span>, joinColumns = @JoinColumn(name = <span class="code-quote" style="color: #009100">"MYEVENT"</span>), foreignKey = @ForeignKey(name = <span class="code-quote" style="color: #009100">"FK_REAL_EVENT"</span>))
<span class="code-keyword" style="color: #000091">public</span> <span class="code-keyword" style="color: #000091">class </span>RealClass <span class="code-keyword" style="color: #000091">extends</span> AbstractBase {
}
</pre>
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