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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/HV" style="color: #3b73af; text-decoration: none">Hibernate Validator</a> / <a href="https://hibernate.atlassian.net/browse/HV-1155" style="color: #3b73af; text-decoration: none"><img src="cid:jira-generated-image-avatar-51489790-b99c-4d55-923a-e8d8886cdfb8" height="16" width="16" border="0" align="absmiddle" alt="Bug" style="vertical-align: text-bottom"></a> <a href="https://hibernate.atlassian.net/browse/HV-1155" style="color: #3b73af; text-decoration: none">HV-1155</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/HV-1155" style="color: #3b73af; text-decoration: none">ClassLoader issues in modularized environments</a> </span> </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-avatar-51489790-b99c-4d55-923a-e8d8886cdfb8" 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"> 5.3.2.Final </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"> engine </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"> 20/Nov/2016 10:55 AM </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-critical-2dfcebfd-7824-4597-b4cc-6dfaf58cb6b3" height="16" width="16" border="0" align="absmiddle" alt="Critical" style="vertical-align: text-bottom"> Critical </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="gsmet" id="email_gsmet" href="https://hibernate.atlassian.net/secure/ViewProfile.jspa?name=gsmet" style="color:#6c797f;; color: #3b73af; text-decoration: none">Guillaume Smet</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">We have 2 different issues, both related to the latest changes done to the way we initialize the ExpressionFactory.</p> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0">I created only one JIRA as we have to find a global fix to both issues.</p> <h2 style="margin: 10px 0 0; font-size: 20px; font-weight: normal; line-height: 1.500; margin: 40px 0 0"><a name="WildFly" style="color: #3b73af; text-decoration: none"></a>WildFly</h2> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0">When upgrading WF to 5.3.2.Final, we have exceptions in some of the tests (for instance the rts integration tests). I was unable to reproduce the error in our HV integration tests but it looks like the error is valid anyway: it is not possible to load the <tt>com.sun.el.ExpressionFactoryImpl</tt>. This is due to the fact that the <tt>javax.el</tt> <tt>FactoryFinder</tt> uses the TCCL to load the <tt>ExpressionFactoryImpl</tt> and this class is not visible to the TCCL used.</p> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0">We can solve this issue by overriding the TCCL with the class loader used to load an HV class as <tt>com.sun.el.ExpressionFactoryImpl</tt> is visible to the HV module.</p> <h2 style="margin: 10px 0 0; font-size: 20px; font-weight: normal; line-height: 1.500; margin: 40px 0 0"><a name="OSGi" style="color: #3b73af; text-decoration: none"></a>OSGi</h2> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0">Our OSGi tests did work with pax-exam 4.8.0 but fails with pax-exam 4.9.2. The pax-exam bugtracker is not very usable to find the related fix but I suspect they fixed something wrong with their classloader as the new behavior seems to be sane and I'm surprised it worked before.</p> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0">We have 2 solutions to fix the issue:</p>
<ul>
<li>we authorize hibernate-validator to access com.sun.el in the OSGi part of the manifest and we use the <tt>ResourceBundleMessageInterpolator</tt> class loader (as we will do with the fix for the WF issue);</li>
<li>we use the externalClassLoader provided to the configuration to load the <tt>ExpressionFactory</tt>: the users would have 2 possibilities in an OSGi environment: build the <tt>ExpressionFactory</tt> themselves or provide an external class loader having access to a <tt>javax.el</tt> implementation.</li>
</ul> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0">And... we can also do both to have a default behavior working with the default <tt>com.sun.el</tt> implementation and allow the users to provide their implementation using the external class loader option or a specific <tt>ExpressionFactory</tt>.</p> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0">Note that the solution proposed by Sanne in <a href="https://github.com/hibernate/hibernate-validator/pull/579/files" class="external-link" rel="nofollow" style="color: #3b73af; text-decoration: none">https://github.com/hibernate/hibernate-validator/pull/579/files</a> does work with pax-exam 4.8.0 but does not work with pax-exam 4.9.2. And I must admit that I would expect it to fail as the <tt>FactoryFinder</tt> does not have access to the <tt>com.sun.el</tt> according to the javax.el-api manifest.</p> </td>
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