SOLR-6188: Revert r1701999

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1702057 13f79535-47bb-0310-9956-ffa450edef68

solr/CHANGES.txt

@@ -265,9 +265,6 @@ Bug Fixes
 
 * SOLR-7988: SolrJ could not make requests to handlers with '/admin/' prefix (noble , ludovic Boutros)
 
-* SOLR-6188: Fixed error loading ICU classes with solr. prefix.  Now jars in
-  the default sharedLib directory are only loaded once. (Shawn Heisey)
-
 * SOLR-7990: Use of timeAllowed can cause incomplete filters to be cached and incorrect
   results to be returned on subsequent requests. (Erick Erickson, yonik)
 

solr/core/src/java/org/apache/solr/core/SolrResourceLoader.java

@@ -140,6 +140,8 @@ public class SolrResourceLoader implements ResourceLoader,Closeable
     }
     
     this.classLoader = createClassLoader(null, parent);
+    addToClassLoader("./lib/", null, true);
+    reloadLuceneSPI();
     this.coreProperties = coreProperties;
   }