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<td class="text-paragraph-pattern-container mobile-resize-text " style="padding: 0px; border-collapse: collapse; padding: 0 0 10px 0"> <p style="margin: 10px 0 0 0; margin-top: 0">Built a test to reproduce this. We end up with a <tt>ConstraintException</tt> in <tt>StringAttributeValue</tt></p>
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<pre class="code-java" style="margin: 10px 0 0 0; margin-top: 0; max-height: 30em; overflow: auto; white-space: pre-wrap; word-wrap: normal">
value = Constraint.isNotEmpty(attributeValue, <span class="code-quote" style="color: #009100">"Attribute value cannot be <span class="code-keyword" style="color: #000091; color: #009100">null</span> or empty"</span>);
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</div> <p style="margin: 10px 0 0 0">which I could easily see turning into an uncaught exception.</p> <p style="margin: 10px 0 0 0">This code all predates out special casing of null and empty so its not a surprising result.</p> <p style="margin: 10px 0 0 0">My question here (really for <a href="https://issues.shibboleth.net/jira/secure/ViewProfile.jspa?name=cantor.2%40osu.edu" class="user-hover" rel="cantor.2@osu.edu" style="color: #3b73af; text-decoration: none">Scott Cantor</a> is "what to do about this?". We could just warn and do notbhing (as OP asked in the list), but is seems to me that the correct answer is to replace this</p>
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<pre class="code-java" style="margin: 10px 0 0 0; margin-top: 0; max-height: 30em; overflow: auto; white-space: pre-wrap; word-wrap: normal">
<span class="code-keyword" style="color: #000091">if</span> (newValue != <span class="code-keyword" style="color: #000091">null</span>) {
mappedValues.add(<span class="code-keyword" style="color: #000091">new</span> StringAttributeValue(newValue));
}
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</div> <p style="margin: 10px 0 0 0">With this</p>
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<pre class="code-java" style="margin: 10px 0 0 0; margin-top: 0; max-height: 30em; overflow: auto; white-space: pre-wrap; word-wrap: normal">
<span class="code-keyword" style="color: #000091">if</span> (newValue == <span class="code-keyword" style="color: #000091">null</span>) {
log.debug(<span class="code-quote" style="color: #009100">"something"</span>)
mappedValue.add(<span class="code-keyword" style="color: #000091">new</span> EmptyAttributeValue(EmptyType.NULL_VALUE));
} <span class="code-keyword" style="color: #000091">else</span> <span class="code-keyword" style="color: #000091">if</span> (mappedValue =="") {
log.debug(<span class="code-quote" style="color: #009100">"something <span class="code-keyword" style="color: #000091; color: #009100">else</span>"</span>)
mappedValue.add(<span class="code-keyword" style="color: #000091">new</span> EmptyAttributeValue(EmptyType.ZERO_LENGTH_VALUE));
} <span class="code-keyword" style="color: #000091">else</span> {
mappedValues.add(<span class="code-keyword" style="color: #000091">new</span> StringAttributeValue(newValue));
}
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</div> <p style="margin: 10px 0 0 0">This has two problems</p>
<ol>
<li>It is a change of behavior for the null case so this cannot be retrofitted</li>
<li>It requires a complete change in types in the (api) code because to the depths of it soul this attribute only believes in Strings so all the APIs are either in terms of <tt>AttributeValue<String></tt> or the (related but far from identical) <tt>StringAttributeValue</tt></li>
</ol> <p style="margin: 10px 0 0 0">There is the side issue that the whole AttributeValue<Type> thing is a complete nightmare in that it is almost impossible to get the types to convert easily, but that's a story for another week.</p> </td>
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