Usability Improvement -- provide an appropriate error message when an app
includes shale-dialog but not one of the implementation jars
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Key: SHALE-432
URL: https://issues.apache.org/struts/browse/SHALE-432
Project: Shale
Issue Type: Improvement
Components: Dialog
Affects Versions: 1.0.4, 1.1.0-SNAPSHOT
Reporter: Craig McClanahan
Fix For: 1.1.0-SNAPSHOT
If the developer includes shale-dialog-xxx.jar but mistakenly omits one of the
implementation jars (such as shale-dialog-basic-xxx.jar or
shale-dialog-scxml-xxx.jar), the result is an obtuse NPE exception when the
DialogManager implementation cannot be located. Also, similar less-than-useful
exception messages happen if configuration files are not loaded, etc.
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