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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-10983" style="color: #3b73af; text-decoration: none"><img src="cid:jira-generated-image-avatar-10cd0eac-6faf-4461-9db0-36649c8d9e3d" height="16" width="16" border="0" align="absmiddle" alt="Bug" style="vertical-align: text-bottom"></a> <a href="https://hibernate.atlassian.net/browse/HHH-10983" style="color: #3b73af; text-decoration: none">HHH-10983</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-10983" style="color: #3b73af; text-decoration: none">Hibernate 5.1 migration Sequence generator issue</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-10cd0eac-6faf-4461-9db0-36649c8d9e3d" height="16" width="16" border="0" align="absmiddle" alt="Bug" style="vertical-align: text-bottom"> Bug </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"> 5.1.0 </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">Assignee:</th>
<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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<th style="color: #707070; font: normal 14px/20px Arial, sans-serif; text-align: left; vertical-align: top; padding: 2px 0">Components:</th>
<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"> 21/Jul/2016 14:00 PM </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"> DB: PostgreSql <br> </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 </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-major-3f3b655c-8ded-417d-a61a-6cdc75c921b4" height="16" width="16" border="0" align="absmiddle" alt="Major" style="vertical-align: text-bottom"> Major </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="Shoot3R" id="email_Shoot3R" href="https://hibernate.atlassian.net/secure/ViewProfile.jspa?name=Shoot3R" style="color:#6c797f;; color: #3b73af; text-decoration: none">Igor Dmitriev</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">Hi, I am trying to migrate from 4.3.6.Final to 5.1.0 Final to get java 8 date time api mapping and unrelated join entities features.<br> But unfortunately I got an issue related with sequence generation.<br> Here is my test:<br> for (int i = 0; i < 50; i++) </p> { Client client = new Client(); client.setName("Test#" + i); clientRepository.save(client); System.out.println(client.getId()); } <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0">@Entity<br> @Table(name = "client")<br> @Getter<br> @Setter<br> class Client </p> { @Id @GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "c_seq") @SequenceGenerator(name = "c_seq", sequenceName = "c_seq", allocationSize = 20) @Column(name = "ID_CLIENT") public Integer id; .... } <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0">CREATE SEQUENCE c_seq start 1 increment 1;</p> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0">Console output:<br> Hibernate: <br> select<br> nextval ('c_seq')<br> Hibernate: <br> select<br> nextval ('c_seq')<br> 1<br> 2<br> Hibernate: <br> select<br> nextval ('c_seq')<br> -16<br> -15<br> -14<br> -13<br> -12<br> -11<br> -10<br> -9<br> -8<br> -7<br> -6<br> -5<br> -4<br> -3<br> -2<br> -1<br> 0<br> org.springframework.dao.DataIntegrityViolationException: A different object with the same identifier value was already associated with the session : <a href="#1" style="color: #3b73af; text-decoration: none">igor.domain.Client#1</a></p> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0">I've investigated what's going on. Actually you have changed sequence strategy generation<br> old: SequenceHiLoGenerator <br> new: SequenceStyleGenerator <br> And SequenceStyleGenerator uses PooledOptimizer.<br> I've spent a lot of time debugging PooledOptimizer and got that it happens due to this piece of code<br> else if ( generationState.value.gt( generationState.hiValue ) ) </p> { generationState.hiValue = callback.getNextValue(); generationState.value = generationState.hiValue.copy().subtract( incrementSize - 1 ); } <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0">But it works fine with Hibernate 4.3.6.Final <br> Console output:<br> Hibernate: <br> select<br> nextval ('c_seq')<br> 20<br> 21<br> 22<br> 23<br> 24<br> 25<br> 26<br> 27<br> 28<br> 29<br> 30<br> 31<br> 32<br> 33<br> 34<br> 35<br> 36<br> 37<br> 38<br> 39<br> Hibernate: <br> select<br> nextval ('c_seq')<br> 40<br> 41<br> 42<br> 43<br> 44<br> 45<br> 46<br> 47<br> 48<br> 49<br> 50<br> 51<br> 52<br> 53<br> 54<br> 55<br> 56<br> 57<br> 58<br> 59<br> Hibernate: <br> select<br> nextval ('c_seq')<br> 60<br> 61<br> 62<br> 63<br> 64<br> 65<br> 66<br> 67<br> 68<br> 69<br> Hibernate: <br> /* insert igor.domain.Client<br> */ insert <br> into<br> client<br> (age, name, id_client) <br> values<br> (?, ?, ?) (x50 times)</p> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0">As we can see everything is fine, allocationSize works and there is no exception.</p> </td>
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