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https://issues.apache.org/jira/browse/OPENJPA-2729?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17171334#comment-17171334
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Mark Struberg commented on OPENJPA-2729:
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Hi! Some of those ArrayIndexOutOfBounds indicate that the whole Metadata
repository could not been read. Basically the whole info about which tables,
columns etc is sometimes null if the setup has a glitch. What is your exact
scenario? Which server, WAR, EAR?, In which classloader is OpenJPA installed?
Or is it part of a WAR in a servlet container?
> problem with ToUpperCase and ToLowerCase
> ----------------------------------------
>
> Key: OPENJPA-2729
> URL: https://issues.apache.org/jira/browse/OPENJPA-2729
> Project: OpenJPA
> Issue Type: Bug
> Components: query
> Affects Versions: 2.4.2
> Environment: MySQL
> Reporter: Patrice DUROUX
> Priority: Major
>
> Hi,
> An exception is thrown in the following method (here the one of ToLowerCase):
> when the getValue() is a PCPath and ((PCPath)
> getValue()).getFieldMapping(state).getColumns()[0])
> throws:
> {{java.lang.ArrayIndexOutOfBoundsException: 0}}{{
> org.apache.openjpa.jdbc.kernel.exps.ToLowerCase.appendTo(ToLowerCase.java:47)
> org.apache.openjpa.jdbc.kernel.exps.MatchesExpression.appendTo(MatchesExpression.java:97)
>
> org.apache.openjpa.jdbc.kernel.exps.AndExpression.appendTo(AndExpression.java:59)}}
>
>
> {{ public void appendTo(Select sel, ExpContext ctx, ExpState state, }}
> {{ SQLBuffer buf, int index) {}}
> {{ DBDictionary dict = ctx.store.getDBDictionary();}}
> {{ String func = dict.toLowerCaseFunction;}}
> {{ dict.assertSupport(func != null, "ToLowerCaseFunction");}}
> {{ if (getValue() instanceof PCPath) {}}
> {{ func = dict.getCastFunction(getValue(), func, ((PCPath)
> getValue()).getFieldMapping(state).getColumns()[0]);}}
> {{ } else {}}
> {{ func = dict.getCastFunction(getValue(), func);}}
> {{ }}}
> {{ int idx = func.indexOf("\{0}");}}
> {{ buf.append(func.substring(0, idx));}}
> {{ getValue().appendTo(sel, ctx, state, buf, index);}}
> {{ buf.append(func.substring(idx + 3));}}
> {{ }}}
> The part of code that generate the exception is:
> Path<String> authorPath = from.join("references").join("authors");
> predicateList.add(cb.like(cb.lower(authorPath), cb.literal('%' +
> value + '%')));
> If I change this code to use another string function like trim(), it works
> (ie. the SQL query is correctly generated).
>
> Regards,
> Patrice
> ps: remark that the only uses of DBDictionary.getCastFunction(Val val, String
> func, Column col) are for those classes.
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