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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" style="color: #3b73af; text-decoration: none">Hibernate ORM</a> / <a href="https://hibernate.atlassian.net/browse/HHH-11421" style="color: #3b73af; text-decoration: none"><img src="cid:jira-generated-image-avatar-05f6cfec-2c1e-493d-ab97-e9a15f5b0696" height="16" width="16" border="0" align="absmiddle" alt="Bug" style="vertical-align: text-bottom"></a> <a href="https://hibernate.atlassian.net/browse/HHH-11421" style="color: #3b73af; text-decoration: none">HHH-11421</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-11421" style="color: #3b73af; text-decoration: none">Can not cast proxed entity to it actual class</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">Change By:</th>
<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="k.chaykin" id="email_k.chaykin" href="https://hibernate.atlassian.net/secure/ViewProfile.jspa?name=k.chaykin" style="color:#6c797f;; color: #3b73af; text-decoration: none">Kirill Chaykin</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"> <span class="diffcontext">Create entities:<br><br>{code:java}<br>@Entity<br>public class File {<br> <br> @Id<br> @GeneratedValue(strategy=GenerationType.IDENTITY)<br> private Long id;<br> <br> @ManyToOne(fetch=FetchType.LAZY)<br> private Folder folder;<br> <br> public Long getId() {<br> return id;<br> }<br><br> public Folder getFolder() {<br> return folder;<br> }<br> <br> public void setFolder(Folder route) {<br> this.folder = route;<br> }<br>}<br><br>@Entity<br>public class Folder {<br><br> @Id<br> @GeneratedValue(strategy=GenerationType.IDENTITY)<br> private Long id;<br> <br> @OneToMany(fetch = FetchType.LAZY, mappedBy = "folder")<br> private List<File></span> <span class="diffremovedchars" style="background-color: #ffe7e7; text-decoration:line-through;"> folders</span> <span class="diffaddedchars" style="background-color:#ddfade;"> files</span> <span class="diffcontext"> = new ArrayList<>();<br> <br> public Long getId() {<br> return id;<br> }<br> <br> public List<File></span> <span class="diffremovedchars" style="background-color: #ffe7e7; text-decoration:line-through;"> getATMs</span> <span class="diffaddedchars" style="background-color:#ddfade;"> getFiles</span> <span class="diffcontext">() {<br> return Collections.unmodifiableList(</span> <span class="diffremovedchars" style="background-color: #ffe7e7; text-decoration:line-through;">folders</span> <span class="diffaddedchars" style="background-color:#ddfade;">files</span> <span class="diffcontext">);<br> }<br>}<br><br>@Entity<br>public class FolderEx extends Folder {<br><br> private String description;<br> <br> public void setDescription(String description) {<br> this.description = description;<br> }<br> <br> public String getDescription() {<br> return description;<br> }<br>}<br>{code}<br><br>Then create and persist FolderEx entity and File entity like this:<br><br>{code:java}<br>...<br>FolderEx folder = new FolderEx();<br>folder.setDescription("Description");<br>em.persist(folder);<br> <br>File file = new File();<br>file.setFolder(folder);<br>em.persist(file);<br>...<br>{code}<br><br>After that, if we get File entity by em.find method and get Folder entity by file.getFolder() method, than we can't access to FolderEx.getDescription() method, even with cast:<br><br>{code:java}<br>File file = em.find(File.class, fileId);<br>Folder folder = file.getFolder();<br>FolderEx folderEx = (FolderEx) folder; // ClassCastException!<br>{code}<br><br>And, if execute this code, we see, that actual instance of folder is FolderEx:<br>{code:java}<br>System.out.println(Hibernate.getClass(folder));<br>{code}<br><br>I attach complete test with this situation</span> </td>
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{
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"@type": "EmailMessage",
"description": "View Issue",
"potentialAction": {
"@type": "ViewAction",
"target": "https://hibernate.atlassian.net/browse/HHH-11421?inbox=true&",
"name": "View Issue"
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"name": "Atlassian",
"url": "https://www.atlassian.com"
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