Hi,
       I am using Collation Key Filter. After adding it into schema.xml.

*Schema.xml*
<field name="gram" type="textSpell" indexed="true" stored="true"
required="true" multiValued="false"/>

</fieldType><fieldType name="textSpell" class="solr.TextField"
positionIncrementGap="100">
       <analyzer type="index">
        <tokenizer class="solr.StandardTokenizerFactory"/>
        <filter class="solr.CollationKeyFilterFactory" language=""
strength="primary"/>
       </analyzer>
       <analyzer type="query">
        <tokenizer class="solr.StandardTokenizerFactory"/>
        <filter class="solr.CollationKeyFilterFactory" language=""
strength="primary"/>
       </analyzer>
</fieldType>


*                              It throws errror...*

Problem accessing /solr/. Reason:

    {msg=SolrCore 'collection1' is not available due to init failure:
Could not load conf for core collection1: Plugin init failure for
[schema.xml] fieldType "textSpell": Plugin init failure for
[schema.xml] analyzer/filter: Error instantiating class:
'org.apache.lucene.collation.CollationKeyFilterFactory'. Schema file
is /configs/myconf/schema.xml,trace=org.apache.solr.common.SolrException:
SolrCore 'collection1' is not available due to init failure: Could not
load conf for core collection1: Plugin init failure for [schema.xml]
fieldType "textSpell": Plugin init failure for [schema.xml]
analyzer/filter: Error instantiating class:
'org.apache.lucene.collation.CollationKeyFilterFactory'. Schema file
is /configs/myconf/schema.xml
        at org.apache.solr.core.CoreContainer.getCore(CoreContainer.java:745)
        at 
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:347)
        at 
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:207)
        at 
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1419)
        at 
org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:455)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:137)
        at 
org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:557)
        at 
org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:231)
        at 
org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1075)
        at 
org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:384)
        at 
org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:193)
        at 
org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1009)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:135)
        at 
org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:255)
        at 
org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:154)
        at 
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:116)
        at org.eclipse.jetty.server.Server.handle(Server.java:368)
        at 
org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(AbstractHttpConnection.java:489)
        at 
org.eclipse.jetty.server.BlockingHttpConnection.handleRequest(BlockingHttpConnection.java:53)
        at 
org.eclipse.jetty.server.AbstractHttpConnection.headerComplete(AbstractHttpConnection.java:942)
        at 
org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.headerComplete(AbstractHttpConnection.java:1004)
        at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:640)
        at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:235)
        at 
org.eclipse.jetty.server.BlockingHttpConnection.handle(BlockingHttpConnection.java:72)
        at 
org.eclipse.jetty.server.bio.SocketConnector$ConnectorEndPoint.run(SocketConnector.java:264)
        at 
org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:608)
        at 
org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:543)
        at java.lang.Thread.run(Thread.java:745)

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