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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=eyJpIjoiN2VhN2YxNDJkYTZlNGNmYWI3NjlkMzVkNDg1ZDNmYmEiLCJwIjoiaiJ9" style="color: #3b73af; text-decoration: none">Hibernate ORM</a> / <a href="https://hibernate.atlassian.net/browse/HHH-13057?atlOrigin=eyJpIjoiN2VhN2YxNDJkYTZlNGNmYWI3NjlkMzVkNDg1ZDNmYmEiLCJwIjoiaiJ9" style="color: #3b73af; text-decoration: none"><img src="cid:jira-generated-image-avatar-709f6d3d-b219-4eed-bc9e-ef4eb3f662fe" height="16" width="16" border="0" align="absmiddle" alt="Improvement" style="vertical-align: text-bottom"></a> <a href="https://hibernate.atlassian.net/browse/HHH-13057?atlOrigin=eyJpIjoiN2VhN2YxNDJkYTZlNGNmYWI3NjlkMzVkNDg1ZDNmYmEiLCJwIjoiaiJ9" style="color: #3b73af; text-decoration: none">HHH-13057</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-13057?atlOrigin=eyJpIjoiN2VhN2YxNDJkYTZlNGNmYWI3NjlkMzVkNDg1ZDNmYmEiLCJwIjoiaiJ9" style="color: #3b73af; text-decoration: none">Prevent Byte Buddy's Advice helper to need reloading many resources from the ClassLoader</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-709f6d3d-b219-4eed-bc9e-ef4eb3f662fe" height="16" width="16" border="0" align="absmiddle" alt="Improvement" style="vertical-align: text-bottom"> Improvement </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="sanne" id="email_sanne" href="https://hibernate.atlassian.net/secure/ViewProfile.jspa?name=sanne" style="color:#6c797f;; color: #3b73af; text-decoration: none">Sanne Grinovero</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">Components:</th>
<td style="padding: 0; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> bytecode-enhancement </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/Oct/2018 11:56 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">Fix Versions:</th>
<td style="padding: 0; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> 5.4.0 </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">Priority:</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-static-minor-f0c452eb-3788-45e6-9323-6652082d2eaa" 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="sanne" id="email_sanne" href="https://hibernate.atlassian.net/secure/ViewProfile.jspa?name=sanne" style="color:#6c797f;; color: #3b73af; text-decoration: none">Sanne Grinovero</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">The current Byte Buddy Enhancer code is using <tt>net.bytebuddy.asm.Advice</tt> in a loop, while this helper will trigger loading of the target class's bytecode from the classloader using <tt>gerResourceAsStream(String)</tt>.</p> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0">This is working correctly, yet it's not cached by common ClassLoader implementations, so this actually triggers allocation of large byte arrays to unzip the JAR files on classpath, to materialize the requested resource.</p> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0">I had an excellent reduction in memory pressure of the whole Enhancement process by extracting the various <tt>Advice</tt> classes we need as fields oif the Enhancer.</p> </td>
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