On 11/1/2013 4:18 AM, Parvin Gasimzade wrote: > I have a problem with custom plugin development in solr 4.x versions. I > have developed custom filter and trying to install it but I got following > exception.
Later you indicated that you can use it with Solr 3.x without any problem. Did you recompile your custom plugin against the Solr jars from the new version? There was a *huge* amount of java class refactoring that went into the 4.0 version as compared to any 3.x version, and that continues with each new 4.x release. I would bet that if you tried that recompile, it would fail due to errors and/or warnings, which you'll need to fix. There might also be operational problems that the compiler doesn't find, due to changes in how the underlying APIs get used. Thanks, Shawn
