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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-11588" style="color: #3b73af; text-decoration: none"><img src="cid:jira-generated-image-avatar-727e0588-d1ff-4d93-854f-28cbd8c4dba9" height="16" width="16" border="0" align="absmiddle" alt="Improvement" style="vertical-align: text-bottom"></a> <a href="https://hibernate.atlassian.net/browse/HHH-11588" style="color: #3b73af; text-decoration: none">HHH-11588</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-11588" style="color: #3b73af; text-decoration: none">Hibernate QuerySplitter class throws Unable to load class for string tokens of query</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">Issue Type:</th>
<td class="has-icon" style="padding: 0; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> <img src="cid:jira-generated-image-avatar-727e0588-d1ff-4d93-854f-28cbd8c4dba9" height="16" width="16" border="0" align="absmiddle" alt="Improvement" style="vertical-align: text-bottom"> Improvement </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">Affects Versions:</th>
<td style="padding: 0; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> 4.3.7 </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"> Unassigned </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"> hibernate-core </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"> 22/Mar/2017 04:03 AM </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">Environment:</th>
<td style="padding: 0; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> Any </td>
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<td class="has-icon" style="padding: 0; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> <img src="cid:jira-generated-image-static-minor-21b97922-695c-472d-abb8-cade669ea1b2" height="16" width="16" border="0" align="absmiddle" alt="Minor" style="vertical-align: text-bottom"> Minor </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">Reporter:</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="akshattandon" id="email_akshattandon" href="https://hibernate.atlassian.net/secure/ViewProfile.jspa?name=akshattandon" style="color:#6c797f;; color: #3b73af; text-decoration: none">Akshat Tandon</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">While performance testing the our APP with Hibernate we see Hibernate Exceptions ( Unable to load class xyz ) coming from the Hibernate ClassLoaderServiceImpl class</p> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0">Whenever Hibernate code creates concrete SQL queries from HQL it calls its method 1. QuerySplitter.concreteQueries(String query, SessionFactoryImplementor factory)</p> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0">which internally calls</p> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0">String importedClassName = getImportedClass(token, factory);<br> which internally calls</p> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0">SessionFactoryImpl.getImportedClassName(String className)<br> which has following logic <br> if (result == null) {<br> try </p> { ((ClassLoaderService)this.serviceRegistry.getService(ClassLoaderService.class)).classForName(className); this.imports.put(className, className); return className; } <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0"> catch (ClassLoadingException cnfe) </p> { return null; } <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0">In the case of toke / classname not found it throws and exception and it returns the null</p> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0">As we are using tools like dyntrace for looking to application memory leaks it shows this error even though it has no relevance , Is it possible to suppress such exceptions or no exception is thrown if no class is found for that token in Hibernate</p> </td>
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