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https://issues.apache.org/jira/browse/OPENJPA-1741?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13615327#comment-13615327
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Rick Curtis commented on OPENJPA-1741:
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Closing this JIRA as I don't expect that we're ever going to make this change.
> Unecessary class load attempts when parsing JPQL
> ------------------------------------------------
>
> Key: OPENJPA-1741
> URL: https://issues.apache.org/jira/browse/OPENJPA-1741
> Project: OpenJPA
> Issue Type: Bug
> Components: query
> Affects Versions: 1.2.2, 2.0.0
> Reporter: David Minor
> Assignee: Rick Curtis
> Attachments: cache-class-load-attempts.patch,
> only-load-uppercase-java-lang.patch, skip-known-variables.patch
>
>
> When parsing JPQL, JPQLExpressionBuilder.getPathOrConstant() tries to
> determine if a token is a java class or enum by doing a class load (via
> QueryImpl.classForName()). The same token will be tried as often as it
> appears in the query. It might be better to
> 1) cache the results
> 2) avoid the lookup if the token is a known variable name
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