SOLR-12881: Remove unneeded import statements

lucene/analysis/common/src/java/org/apache/lucene/analysis/ar/ArabicNormalizationFilterFactory.java

@@ -20,7 +20,6 @@ package org.apache.lucene.analysis.ar;
 import java.util.Map;
 
 import org.apache.lucene.analysis.TokenStream;
-import org.apache.lucene.analysis.ar.ArabicNormalizationFilter;
 import org.apache.lucene.analysis.util.AbstractAnalysisFactory;
 import org.apache.lucene.analysis.util.MultiTermAwareComponent;
 import org.apache.lucene.analysis.util.TokenFilterFactory;

lucene/analysis/common/src/java/org/apache/lucene/analysis/ar/ArabicStemFilterFactory.java

@@ -20,7 +20,6 @@ package org.apache.lucene.analysis.ar;
 import java.util.Map;
 
 import org.apache.lucene.analysis.TokenStream;
-import org.apache.lucene.analysis.ar.ArabicStemFilter;
 import org.apache.lucene.analysis.util.TokenFilterFactory;
 
 /**

lucene/analysis/common/src/java/org/apache/lucene/analysis/bg/BulgarianStemFilterFactory.java

@@ -20,7 +20,6 @@ package org.apache.lucene.analysis.bg;
 import java.util.Map;
 
 import org.apache.lucene.analysis.TokenStream;
-import org.apache.lucene.analysis.bg.BulgarianStemFilter;
 import org.apache.lucene.analysis.util.TokenFilterFactory;
 
 /** 

lucene/analysis/common/src/java/org/apache/lucene/analysis/br/BrazilianStemFilterFactory.java

@@ -20,7 +20,6 @@ package org.apache.lucene.analysis.br;
 import java.util.Map;
 
 import org.apache.lucene.analysis.TokenStream;
-import org.apache.lucene.analysis.br.BrazilianStemFilter;
 import org.apache.lucene.analysis.util.TokenFilterFactory;
 
 /** 

lucene/analysis/common/src/java/org/apache/lucene/analysis/cjk/CJKBigramFilterFactory.java

@@ -20,7 +20,6 @@ package org.apache.lucene.analysis.cjk;
 import java.util.Map;
 
 import org.apache.lucene.analysis.TokenStream;
-import org.apache.lucene.analysis.cjk.CJKBigramFilter;
 import org.apache.lucene.analysis.util.TokenFilterFactory;
 
 /** 

lucene/analysis/common/src/java/org/apache/lucene/analysis/cjk/CJKWidthFilterFactory.java

@@ -20,7 +20,6 @@ package org.apache.lucene.analysis.cjk;
 import java.util.Map;
 
 import org.apache.lucene.analysis.TokenStream;
-import org.apache.lucene.analysis.cjk.CJKWidthFilter;
 import org.apache.lucene.analysis.util.AbstractAnalysisFactory;
 import org.apache.lucene.analysis.util.MultiTermAwareComponent;
 import org.apache.lucene.analysis.util.TokenFilterFactory;

lucene/analysis/common/src/java/org/apache/lucene/analysis/commongrams/CommonGramsQueryFilterFactory.java

@@ -21,8 +21,6 @@ import java.util.Map;
 
 import org.apache.lucene.analysis.TokenFilter;
 import org.apache.lucene.analysis.TokenStream;
-import org.apache.lucene.analysis.commongrams.CommonGramsFilter;
-import org.apache.lucene.analysis.commongrams.CommonGramsQueryFilter;
 
 /**
  * Construct {@link CommonGramsQueryFilter}.

lucene/analysis/common/src/java/org/apache/lucene/analysis/core/UpperCaseFilterFactory.java

@@ -20,7 +20,6 @@ package org.apache.lucene.analysis.core;
 import java.util.Map;
 
 import org.apache.lucene.analysis.TokenStream;
-import org.apache.lucene.analysis.core.UpperCaseFilter;
 import org.apache.lucene.analysis.util.AbstractAnalysisFactory;
 import org.apache.lucene.analysis.util.MultiTermAwareComponent;
 import org.apache.lucene.analysis.util.TokenFilterFactory;

lucene/analysis/common/src/java/org/apache/lucene/analysis/cz/CzechStemFilterFactory.java

@@ -20,7 +20,6 @@ package org.apache.lucene.analysis.cz;
 import java.util.Map;
 
 import org.apache.lucene.analysis.TokenStream;
-import org.apache.lucene.analysis.cz.CzechStemFilter;
 import org.apache.lucene.analysis.util.TokenFilterFactory;
 
 /**

lucene/analysis/common/src/java/org/apache/lucene/analysis/de/GermanLightStemFilterFactory.java

@@ -20,7 +20,6 @@ package org.apache.lucene.analysis.de;
 import java.util.Map;
 
 import org.apache.lucene.analysis.TokenStream;
-import org.apache.lucene.analysis.de.GermanLightStemFilter;
 import org.apache.lucene.analysis.util.TokenFilterFactory;
 
 /**

lucene/analysis/common/src/java/org/apache/lucene/analysis/de/GermanMinimalStemFilterFactory.java

@@ -20,7 +20,6 @@ package org.apache.lucene.analysis.de;
 import java.util.Map;
 
 import org.apache.lucene.analysis.TokenStream;
-import org.apache.lucene.analysis.de.GermanMinimalStemFilter;
 import org.apache.lucene.analysis.util.TokenFilterFactory;
 
 /**

lucene/analysis/common/src/java/org/apache/lucene/analysis/de/GermanNormalizationFilterFactory.java

@@ -20,7 +20,6 @@ package org.apache.lucene.analysis.de;
 import java.util.Map;
 
 import org.apache.lucene.analysis.TokenStream;
-import org.apache.lucene.analysis.de.GermanNormalizationFilter;
 import org.apache.lucene.analysis.util.AbstractAnalysisFactory;
 import org.apache.lucene.analysis.util.MultiTermAwareComponent;
 import org.apache.lucene.analysis.util.TokenFilterFactory;

lucene/analysis/common/src/java/org/apache/lucene/analysis/de/GermanStemFilterFactory.java

@@ -19,7 +19,6 @@ package org.apache.lucene.analysis.de;
 
 import java.util.Map;
 
-import org.apache.lucene.analysis.de.GermanStemFilter;
 import org.apache.lucene.analysis.TokenStream;
 import org.apache.lucene.analysis.util.TokenFilterFactory;
 

lucene/analysis/common/src/java/org/apache/lucene/analysis/el/GreekLowerCaseFilterFactory.java

@@ -20,7 +20,6 @@ package org.apache.lucene.analysis.el;
 import java.util.Map;
 
 import org.apache.lucene.analysis.TokenStream;
-import org.apache.lucene.analysis.el.GreekLowerCaseFilter;
 import org.apache.lucene.analysis.util.AbstractAnalysisFactory;
 import org.apache.lucene.analysis.util.MultiTermAwareComponent;
 import org.apache.lucene.analysis.util.TokenFilterFactory;

lucene/analysis/common/src/java/org/apache/lucene/analysis/el/GreekStemFilterFactory.java

@@ -20,7 +20,6 @@ package org.apache.lucene.analysis.el;
 import java.util.Map;
 
 import org.apache.lucene.analysis.TokenStream;
-import org.apache.lucene.analysis.el.GreekStemFilter;
 import org.apache.lucene.analysis.util.TokenFilterFactory;
 
 /** 

lucene/analysis/common/src/java/org/apache/lucene/analysis/en/EnglishMinimalStemFilterFactory.java

@@ -20,7 +20,6 @@ package org.apache.lucene.analysis.en;
 import java.util.Map;
 
 import org.apache.lucene.analysis.TokenStream;
-import org.apache.lucene.analysis.en.EnglishMinimalStemFilter;
 import org.apache.lucene.analysis.util.TokenFilterFactory;
 
 /** 

lucene/analysis/common/src/java/org/apache/lucene/analysis/en/EnglishPossessiveFilterFactory.java

@@ -20,7 +20,6 @@ package org.apache.lucene.analysis.en;
 import java.util.Map;
 
 import org.apache.lucene.analysis.TokenStream;
-import org.apache.lucene.analysis.en.EnglishPossessiveFilter;
 import org.apache.lucene.analysis.util.TokenFilterFactory;
 
 /**

lucene/analysis/common/src/java/org/apache/lucene/analysis/en/KStemFilterFactory.java

@@ -21,7 +21,6 @@ import java.util.Map;
 
 import org.apache.lucene.analysis.TokenFilter;
 import org.apache.lucene.analysis.TokenStream;
-import org.apache.lucene.analysis.en.KStemFilter;
 import org.apache.lucene.analysis.util.TokenFilterFactory;
 
 /**

lucene/analysis/common/src/java/org/apache/lucene/analysis/en/PorterStemFilterFactory.java

@@ -20,7 +20,6 @@ package org.apache.lucene.analysis.en;
 import java.util.Map;
 
 import org.apache.lucene.analysis.TokenStream;
-import org.apache.lucene.analysis.en.PorterStemFilter;
 import org.apache.lucene.analysis.util.TokenFilterFactory;
 
 /**

lucene/analysis/common/src/java/org/apache/lucene/analysis/es/SpanishLightStemFilterFactory.java

@@ -20,7 +20,6 @@ package org.apache.lucene.analysis.es;
 import java.util.Map;
 
 import org.apache.lucene.analysis.TokenStream;
-import org.apache.lucene.analysis.es.SpanishLightStemFilter;
 import org.apache.lucene.analysis.util.TokenFilterFactory;
 
 /** 

lucene/analysis/common/src/java/org/apache/lucene/analysis/fa/PersianCharFilterFactory.java

@@ -21,7 +21,6 @@ import java.io.Reader;
 import java.util.Map;
 
 import org.apache.lucene.analysis.CharFilter;
-import org.apache.lucene.analysis.fa.PersianCharFilter;
 import org.apache.lucene.analysis.util.AbstractAnalysisFactory;
 import org.apache.lucene.analysis.util.CharFilterFactory;
 import org.apache.lucene.analysis.util.MultiTermAwareComponent;

lucene/analysis/common/src/java/org/apache/lucene/analysis/fa/PersianNormalizationFilterFactory.java

@@ -19,7 +19,6 @@ package org.apache.lucene.analysis.fa;
 
 import java.util.Map;
 
-import org.apache.lucene.analysis.fa.PersianNormalizationFilter;
 import org.apache.lucene.analysis.TokenStream;
 import org.apache.lucene.analysis.util.AbstractAnalysisFactory;
 import org.apache.lucene.analysis.util.MultiTermAwareComponent;

lucene/analysis/common/src/java/org/apache/lucene/analysis/fi/FinnishLightStemFilterFactory.java

@@ -20,7 +20,6 @@ package org.apache.lucene.analysis.fi;
 import java.util.Map;
 
 import org.apache.lucene.analysis.TokenStream;
-import org.apache.lucene.analysis.fi.FinnishLightStemFilter;
 import org.apache.lucene.analysis.util.TokenFilterFactory;
 
 /** 

lucene/analysis/common/src/java/org/apache/lucene/analysis/fr/FrenchLightStemFilterFactory.java

@@ -20,7 +20,6 @@ package org.apache.lucene.analysis.fr;
 import java.util.Map;
 
 import org.apache.lucene.analysis.TokenStream;
-import org.apache.lucene.analysis.fr.FrenchLightStemFilter;
 import org.apache.lucene.analysis.util.TokenFilterFactory;
 
 /**

lucene/analysis/common/src/java/org/apache/lucene/analysis/fr/FrenchMinimalStemFilterFactory.java

@@ -20,7 +20,6 @@ package org.apache.lucene.analysis.fr;
 import java.util.Map;
 
 import org.apache.lucene.analysis.TokenStream;
-import org.apache.lucene.analysis.fr.FrenchMinimalStemFilter;
 import org.apache.lucene.analysis.util.TokenFilterFactory;
 
 /** 

lucene/analysis/common/src/java/org/apache/lucene/analysis/ga/IrishLowerCaseFilterFactory.java

@@ -20,7 +20,6 @@ package org.apache.lucene.analysis.ga;
 import java.util.Map;
 
 import org.apache.lucene.analysis.TokenStream;
-import org.apache.lucene.analysis.ga.IrishLowerCaseFilter;
 import org.apache.lucene.analysis.util.AbstractAnalysisFactory;
 import org.apache.lucene.analysis.util.MultiTermAwareComponent;
 import org.apache.lucene.analysis.util.TokenFilterFactory;

lucene/analysis/common/src/java/org/apache/lucene/analysis/gl/GalicianMinimalStemFilterFactory.java

@@ -20,7 +20,6 @@ package org.apache.lucene.analysis.gl;
 import java.util.Map;
 
 import org.apache.lucene.analysis.TokenStream;
-import org.apache.lucene.analysis.gl.GalicianMinimalStemFilter;
 import org.apache.lucene.analysis.util.TokenFilterFactory;
 
 /**

lucene/analysis/common/src/java/org/apache/lucene/analysis/gl/GalicianStemFilterFactory.java

@@ -20,7 +20,6 @@ package org.apache.lucene.analysis.gl;
 import java.util.Map;
 
 import org.apache.lucene.analysis.TokenStream;
-import org.apache.lucene.analysis.gl.GalicianStemFilter;
 import org.apache.lucene.analysis.util.TokenFilterFactory;
 
 /**

lucene/analysis/common/src/java/org/apache/lucene/analysis/hi/HindiNormalizationFilterFactory.java

@@ -20,7 +20,6 @@ package org.apache.lucene.analysis.hi;
 import java.util.Map;
 
 import org.apache.lucene.analysis.TokenStream;
-import org.apache.lucene.analysis.hi.HindiNormalizationFilter;
 import org.apache.lucene.analysis.util.AbstractAnalysisFactory;
 import org.apache.lucene.analysis.util.MultiTermAwareComponent;
 import org.apache.lucene.analysis.util.TokenFilterFactory;

lucene/analysis/common/src/java/org/apache/lucene/analysis/hi/HindiStemFilterFactory.java

@@ -20,7 +20,6 @@ package org.apache.lucene.analysis.hi;
 import java.util.Map;
 
 import org.apache.lucene.analysis.TokenStream;
-import org.apache.lucene.analysis.hi.HindiStemFilter;
 import org.apache.lucene.analysis.util.TokenFilterFactory;
 
 /** 

lucene/analysis/common/src/java/org/apache/lucene/analysis/hu/HungarianLightStemFilterFactory.java

@@ -20,7 +20,6 @@ package org.apache.lucene.analysis.hu;
 import java.util.Map;
 
 import org.apache.lucene.analysis.TokenStream;
-import org.apache.lucene.analysis.hu.HungarianLightStemFilter;
 import org.apache.lucene.analysis.util.TokenFilterFactory;
 
 /** 

lucene/analysis/common/src/java/org/apache/lucene/analysis/id/IndonesianStemFilterFactory.java

@@ -20,7 +20,6 @@ package org.apache.lucene.analysis.id;
 import java.util.Map;
 
 import org.apache.lucene.analysis.TokenStream;
-import org.apache.lucene.analysis.id.IndonesianStemFilter;
 import org.apache.lucene.analysis.util.TokenFilterFactory;
 
 /** 

lucene/analysis/common/src/java/org/apache/lucene/analysis/in/IndicNormalizationFilterFactory.java

@@ -20,7 +20,6 @@ package org.apache.lucene.analysis.in;
 import java.util.Map;
 
 import org.apache.lucene.analysis.TokenStream;
-import org.apache.lucene.analysis.in.IndicNormalizationFilter;
 import org.apache.lucene.analysis.util.AbstractAnalysisFactory;
 import org.apache.lucene.analysis.util.MultiTermAwareComponent;
 import org.apache.lucene.analysis.util.TokenFilterFactory;

lucene/analysis/common/src/java/org/apache/lucene/analysis/it/ItalianLightStemFilterFactory.java

@@ -20,7 +20,6 @@ package org.apache.lucene.analysis.it;
 import java.util.Map;
 
 import org.apache.lucene.analysis.TokenStream;
-import org.apache.lucene.analysis.it.ItalianLightStemFilter;
 import org.apache.lucene.analysis.util.TokenFilterFactory;
 
 /** 

lucene/analysis/common/src/java/org/apache/lucene/analysis/lv/LatvianStemFilterFactory.java

@@ -20,7 +20,6 @@ package org.apache.lucene.analysis.lv;
 import java.util.Map;
 
 import org.apache.lucene.analysis.TokenStream;
-import org.apache.lucene.analysis.lv.LatvianStemFilter;
 import org.apache.lucene.analysis.util.TokenFilterFactory;
 
 /** 

lucene/analysis/common/src/java/org/apache/lucene/analysis/miscellaneous/ASCIIFoldingFilterFactory.java

@@ -23,7 +23,6 @@ import java.util.Map;
 import org.apache.lucene.analysis.util.AbstractAnalysisFactory;
 import org.apache.lucene.analysis.util.MultiTermAwareComponent;
 import org.apache.lucene.analysis.util.TokenFilterFactory;
-import org.apache.lucene.analysis.miscellaneous.ASCIIFoldingFilter;
 import org.apache.lucene.analysis.TokenStream;
 
 /** 

lucene/analysis/common/src/java/org/apache/lucene/analysis/miscellaneous/HyphenatedWordsFilterFactory.java

@@ -20,7 +20,6 @@ package org.apache.lucene.analysis.miscellaneous;
 import java.util.Map;
 
 import org.apache.lucene.analysis.TokenStream;
-import org.apache.lucene.analysis.miscellaneous.HyphenatedWordsFilter;
 import org.apache.lucene.analysis.util.TokenFilterFactory;
 
 /**

lucene/analysis/common/src/java/org/apache/lucene/analysis/miscellaneous/RemoveDuplicatesTokenFilterFactory.java

@@ -20,7 +20,6 @@ package org.apache.lucene.analysis.miscellaneous;
 import java.util.Map;
 
 import org.apache.lucene.analysis.TokenStream;
-import org.apache.lucene.analysis.miscellaneous.RemoveDuplicatesTokenFilter;
 import org.apache.lucene.analysis.util.TokenFilterFactory;
 
 /**

lucene/analysis/common/src/java/org/apache/lucene/analysis/miscellaneous/TrimFilterFactory.java

@@ -20,7 +20,6 @@ package org.apache.lucene.analysis.miscellaneous;
 import java.util.Map;
 
 import org.apache.lucene.analysis.TokenStream;
-import org.apache.lucene.analysis.miscellaneous.TrimFilter;
 import org.apache.lucene.analysis.util.AbstractAnalysisFactory;
 import org.apache.lucene.analysis.util.MultiTermAwareComponent;
 import org.apache.lucene.analysis.util.TokenFilterFactory;

lucene/analysis/common/src/java/org/apache/lucene/analysis/no/NorwegianLightStemFilterFactory.java

@@ -20,7 +20,6 @@ package org.apache.lucene.analysis.no;
 import java.util.Map;
 
 import org.apache.lucene.analysis.TokenStream;
-import org.apache.lucene.analysis.no.NorwegianLightStemFilter;
 import org.apache.lucene.analysis.util.TokenFilterFactory;
 
 import static org.apache.lucene.analysis.no.NorwegianLightStemmer.BOKMAAL;

lucene/analysis/common/src/java/org/apache/lucene/analysis/no/NorwegianMinimalStemFilterFactory.java

@@ -20,7 +20,6 @@ package org.apache.lucene.analysis.no;
 import java.util.Map;
 
 import org.apache.lucene.analysis.TokenStream;
-import org.apache.lucene.analysis.no.NorwegianMinimalStemFilter;
 import org.apache.lucene.analysis.util.TokenFilterFactory;
 
 import static org.apache.lucene.analysis.no.NorwegianLightStemmer.BOKMAAL;

lucene/analysis/common/src/java/org/apache/lucene/analysis/payloads/TokenOffsetPayloadTokenFilterFactory.java

@@ -19,7 +19,6 @@ package org.apache.lucene.analysis.payloads;
 
 import java.util.Map;
 
-import org.apache.lucene.analysis.payloads.TokenOffsetPayloadTokenFilter;
 import org.apache.lucene.analysis.TokenStream;
 import org.apache.lucene.analysis.util.TokenFilterFactory;
 

lucene/analysis/common/src/java/org/apache/lucene/analysis/payloads/TypeAsPayloadTokenFilterFactory.java

@@ -19,7 +19,6 @@ package org.apache.lucene.analysis.payloads;
 
 import java.util.Map;
 
-import org.apache.lucene.analysis.payloads.TypeAsPayloadTokenFilter;
 import org.apache.lucene.analysis.TokenStream;
 import org.apache.lucene.analysis.util.TokenFilterFactory;
 

lucene/analysis/common/src/java/org/apache/lucene/analysis/pt/PortugueseLightStemFilterFactory.java

@@ -20,7 +20,6 @@ package org.apache.lucene.analysis.pt;
 import java.util.Map;
 
 import org.apache.lucene.analysis.TokenStream;
-import org.apache.lucene.analysis.pt.PortugueseLightStemFilter;
 import org.apache.lucene.analysis.util.TokenFilterFactory;
 
 /** 

lucene/analysis/common/src/java/org/apache/lucene/analysis/pt/PortugueseMinimalStemFilterFactory.java

@@ -20,7 +20,6 @@ package org.apache.lucene.analysis.pt;
 import java.util.Map;
 
 import org.apache.lucene.analysis.TokenStream;
-import org.apache.lucene.analysis.pt.PortugueseMinimalStemFilter;
 import org.apache.lucene.analysis.util.TokenFilterFactory;
 
 /** 

lucene/analysis/common/src/java/org/apache/lucene/analysis/pt/PortugueseStemFilterFactory.java

@@ -20,7 +20,6 @@ package org.apache.lucene.analysis.pt;
 import java.util.Map;
 
 import org.apache.lucene.analysis.TokenStream;
-import org.apache.lucene.analysis.pt.PortugueseStemFilter;
 import org.apache.lucene.analysis.util.TokenFilterFactory;
 
 /** 

lucene/analysis/common/src/java/org/apache/lucene/analysis/reverse/ReverseStringFilterFactory.java

@@ -20,7 +20,6 @@ package org.apache.lucene.analysis.reverse;
 import java.util.Map;
 
 import org.apache.lucene.analysis.TokenStream;
-import org.apache.lucene.analysis.reverse.ReverseStringFilter;
 import org.apache.lucene.analysis.util.TokenFilterFactory;
 
 /**

lucene/analysis/common/src/java/org/apache/lucene/analysis/ru/RussianLightStemFilterFactory.java

@@ -20,7 +20,6 @@ package org.apache.lucene.analysis.ru;
 import java.util.Map;
 
 import org.apache.lucene.analysis.TokenStream;
-import org.apache.lucene.analysis.ru.RussianLightStemFilter;
 import org.apache.lucene.analysis.util.TokenFilterFactory;
 
 /** 

lucene/analysis/common/src/java/org/apache/lucene/analysis/standard/ClassicFilterFactory.java

@@ -22,7 +22,6 @@ import java.util.Map;
 import org.apache.lucene.analysis.TokenFilter;
 import org.apache.lucene.analysis.TokenStream;
 import org.apache.lucene.analysis.util.TokenFilterFactory;
-import org.apache.lucene.analysis.standard.ClassicFilter;
 
 /**
  * Factory for {@link ClassicFilter}.

lucene/analysis/common/src/java/org/apache/lucene/analysis/sv/SwedishLightStemFilterFactory.java

@@ -20,7 +20,6 @@ package org.apache.lucene.analysis.sv;
 import java.util.Map;
 
 import org.apache.lucene.analysis.TokenStream;
-import org.apache.lucene.analysis.sv.SwedishLightStemFilter;
 import org.apache.lucene.analysis.util.TokenFilterFactory;
 
 /** 

lucene/analysis/common/src/java/org/apache/lucene/analysis/tr/TurkishLowerCaseFilterFactory.java

@@ -20,7 +20,6 @@ package org.apache.lucene.analysis.tr;
 import java.util.Map;
 
 import org.apache.lucene.analysis.TokenStream;
-import org.apache.lucene.analysis.tr.TurkishLowerCaseFilter;
 import org.apache.lucene.analysis.util.AbstractAnalysisFactory;
 import org.apache.lucene.analysis.util.MultiTermAwareComponent;
 import org.apache.lucene.analysis.util.TokenFilterFactory;

lucene/analysis/common/src/test/org/apache/lucene/analysis/commongrams/CommonGramsFilterTest.java

@@ -19,8 +19,12 @@ package org.apache.lucene.analysis.commongrams;
 import java.io.StringReader;
 import java.util.Arrays;
 
-import org.apache.lucene.analysis.*;
+import org.apache.lucene.analysis.Analyzer;
+import org.apache.lucene.analysis.BaseTokenStreamTestCase;
 import org.apache.lucene.analysis.CharArraySet;
+import org.apache.lucene.analysis.MockTokenizer;
+import org.apache.lucene.analysis.TokenFilter;
+import org.apache.lucene.analysis.Tokenizer;
 import org.apache.lucene.analysis.core.WhitespaceTokenizer;
 import org.apache.lucene.analysis.tokenattributes.CharTermAttribute;
 

lucene/analysis/common/src/test/org/apache/lucene/analysis/payloads/TestDelimitedPayloadTokenFilterFactory.java

@@ -23,7 +23,6 @@ import java.io.StringReader;
 import org.apache.lucene.analysis.MockTokenizer;
 import org.apache.lucene.analysis.TokenStream;
 import org.apache.lucene.analysis.Tokenizer;
-import org.apache.lucene.analysis.payloads.PayloadHelper;
 import org.apache.lucene.analysis.tokenattributes.PayloadAttribute;
 import org.apache.lucene.analysis.util.BaseTokenStreamFactoryTestCase;
 

lucene/analysis/common/src/test/org/apache/lucene/analysis/standard/TestUAX29URLEmailAnalyzer.java

@@ -19,7 +19,6 @@ package org.apache.lucene.analysis.standard;
 
 import org.apache.lucene.analysis.Analyzer;
 import org.apache.lucene.analysis.BaseTokenStreamTestCase;
-import org.apache.lucene.analysis.standard.UAX29URLEmailAnalyzer;
 
 import java.io.IOException;
 import java.util.Arrays;

lucene/analysis/common/src/test/org/apache/lucene/analysis/standard/TestUAX29URLEmailTokenizer.java

@@ -21,8 +21,6 @@ import org.apache.lucene.analysis.BaseTokenStreamTestCase;
 import org.apache.lucene.analysis.TokenFilter;
 import org.apache.lucene.analysis.TokenStream;
 import org.apache.lucene.analysis.Tokenizer;
-import org.apache.lucene.analysis.standard.UAX29URLEmailTokenizer;
-import org.apache.lucene.analysis.standard.WordBreakTestUnicode_6_3_0;
 import org.apache.lucene.analysis.tokenattributes.TypeAttribute;
 import org.apache.lucene.util.IOUtils;
 import org.apache.lucene.util.TestUtil;

lucene/analysis/common/src/tools/java/org/apache/lucene/analysis/standard/GenerateJflexTLDMacros.java

@@ -20,10 +20,8 @@ import java.io.BufferedReader;
 import java.io.File;
 import java.io.FileOutputStream;
 import java.io.IOException;
-import java.io.InputStream;
 import java.io.InputStreamReader;
 import java.io.OutputStreamWriter;
-import java.io.Reader;
 import java.io.Writer;
 import java.net.URL;
 import java.net.URLConnection;

lucene/analysis/icu/src/java/org/apache/lucene/analysis/icu/ICUFoldingFilterFactory.java

@@ -20,7 +20,6 @@ package org.apache.lucene.analysis.icu;
 import java.util.Map;
 
 import org.apache.lucene.analysis.TokenStream;
-import org.apache.lucene.analysis.icu.ICUFoldingFilter;
 import org.apache.lucene.analysis.util.AbstractAnalysisFactory; // javadocs
 import org.apache.lucene.analysis.util.MultiTermAwareComponent;
 import org.apache.lucene.analysis.util.TokenFilterFactory;

lucene/analysis/icu/src/java/org/apache/lucene/collation/ICUCollationKeyAnalyzer.java

@@ -21,7 +21,6 @@ package org.apache.lucene.collation;
 import com.ibm.icu.text.Collator;
 import org.apache.lucene.analysis.Analyzer;
 import org.apache.lucene.analysis.core.KeywordTokenizer;
-import org.apache.lucene.collation.CollationKeyAnalyzer; // javadocs
 
 /**
  * <p>

lucene/analysis/kuromoji/src/java/org/apache/lucene/analysis/ja/JapaneseBaseFormFilterFactory.java

@@ -20,7 +20,6 @@ package org.apache.lucene.analysis.ja;
 import java.util.Map;
 
 import org.apache.lucene.analysis.TokenStream;
-import org.apache.lucene.analysis.ja.JapaneseBaseFormFilter;
 import org.apache.lucene.analysis.util.TokenFilterFactory;
 
 /**

lucene/analysis/kuromoji/src/java/org/apache/lucene/analysis/ja/JapaneseIterationMarkCharFilterFactory.java

@@ -18,7 +18,6 @@ package org.apache.lucene.analysis.ja;
 
 
 import org.apache.lucene.analysis.CharFilter;
-import org.apache.lucene.analysis.ja.JapaneseIterationMarkCharFilter;
 import org.apache.lucene.analysis.util.AbstractAnalysisFactory;
 import org.apache.lucene.analysis.util.CharFilterFactory;
 import org.apache.lucene.analysis.util.MultiTermAwareComponent;

lucene/analysis/kuromoji/src/java/org/apache/lucene/analysis/ja/JapaneseKatakanaStemFilterFactory.java

@@ -18,7 +18,6 @@ package org.apache.lucene.analysis.ja;
 
 
 import org.apache.lucene.analysis.TokenStream;
-import org.apache.lucene.analysis.ja.JapaneseKatakanaStemFilter;
 import org.apache.lucene.analysis.util.TokenFilterFactory;
 
 import java.util.Map;

lucene/analysis/kuromoji/src/java/org/apache/lucene/analysis/ja/JapaneseReadingFormFilterFactory.java

@@ -18,7 +18,6 @@ package org.apache.lucene.analysis.ja;
 
 
 import org.apache.lucene.analysis.TokenStream;
-import org.apache.lucene.analysis.ja.JapaneseReadingFormFilter;
 import org.apache.lucene.analysis.util.TokenFilterFactory;
 
 import java.util.Map;

lucene/analysis/phonetic/src/java/org/apache/lucene/analysis/phonetic/DoubleMetaphoneFilterFactory.java

@@ -20,7 +20,6 @@ package org.apache.lucene.analysis.phonetic;
 import java.util.Map;
 
 import org.apache.lucene.analysis.TokenStream;
-import org.apache.lucene.analysis.phonetic.DoubleMetaphoneFilter;
 import org.apache.lucene.analysis.util.TokenFilterFactory;
 
 /**

lucene/analysis/phonetic/src/test/org/apache/lucene/analysis/phonetic/TestDoubleMetaphoneFilterFactory.java

@@ -22,7 +22,6 @@ import java.util.Map;
 
 import org.apache.lucene.analysis.BaseTokenStreamTestCase;
 import org.apache.lucene.analysis.TokenStream;
-import org.apache.lucene.analysis.phonetic.DoubleMetaphoneFilter;
 
 public class TestDoubleMetaphoneFilterFactory extends BaseTokenStreamTestCase {
 

lucene/analysis/stempel/src/java/org/apache/lucene/analysis/stempel/StempelPolishStemFilterFactory.java

@@ -21,8 +21,6 @@ import java.util.Map;
 
 import org.apache.lucene.analysis.TokenStream;
 import org.apache.lucene.analysis.pl.PolishAnalyzer;
-import org.apache.lucene.analysis.stempel.StempelFilter;
-import org.apache.lucene.analysis.stempel.StempelStemmer;
 import org.apache.lucene.analysis.util.TokenFilterFactory;
 
 /**

lucene/backward-codecs/src/test/org/apache/lucene/index/TestManyPointsInOldIndex.java

@@ -23,8 +23,6 @@ import java.nio.file.Paths;
 
 import org.apache.lucene.document.Document;
 import org.apache.lucene.document.IntPoint;
-import org.apache.lucene.index.IndexWriter;
-import org.apache.lucene.index.IndexWriterConfig;
 import org.apache.lucene.store.BaseDirectoryWrapper;
 import org.apache.lucene.store.Directory;
 import org.apache.lucene.store.FSDirectory;

lucene/codecs/src/java/org/apache/lucene/codecs/memory/DirectDocValuesProducer.java

@@ -29,7 +29,6 @@ import java.util.concurrent.atomic.AtomicLong;
 import org.apache.lucene.codecs.CodecUtil;
 import org.apache.lucene.codecs.DocValuesProducer;
 import org.apache.lucene.index.*;
-import org.apache.lucene.index.SortedDocValues;
 import org.apache.lucene.store.ChecksumIndexInput;
 import org.apache.lucene.store.IndexInput;
 import org.apache.lucene.util.Accountable;

lucene/codecs/src/java/org/apache/lucene/codecs/simpletext/SimpleTextBKDReader.java

@@ -19,7 +19,6 @@ package org.apache.lucene.codecs.simpletext;
 import java.io.IOException;
 import java.nio.charset.StandardCharsets;
 
-import org.apache.lucene.codecs.simpletext.SimpleTextUtil;
 import org.apache.lucene.index.CorruptIndexException;
 import org.apache.lucene.index.PointValues;
 import org.apache.lucene.store.IndexInput;

lucene/codecs/src/java/org/apache/lucene/codecs/simpletext/SimpleTextDocValuesReader.java

@@ -31,7 +31,6 @@ import java.util.function.IntFunction;
 
 import org.apache.lucene.codecs.DocValuesProducer;
 import org.apache.lucene.index.*;
-import org.apache.lucene.index.NumericDocValues;
 import org.apache.lucene.search.DocIdSetIterator;
 import org.apache.lucene.store.BufferedChecksumIndexInput;
 import org.apache.lucene.store.ChecksumIndexInput;

lucene/codecs/src/test/org/apache/lucene/codecs/blockterms/TestVarGapDocFreqIntervalPostingsFormat.java

@@ -18,7 +18,6 @@ package org.apache.lucene.codecs.blockterms;
 
 
 import org.apache.lucene.codecs.Codec;
-import org.apache.lucene.codecs.blockterms.LuceneVarGapFixedInterval;
 import org.apache.lucene.index.BasePostingsFormatTestCase;
 import org.apache.lucene.util.TestUtil;
 

lucene/codecs/src/test/org/apache/lucene/codecs/blockterms/TestVarGapFixedIntervalPostingsFormat.java

@@ -18,7 +18,6 @@ package org.apache.lucene.codecs.blockterms;
 
 
 import org.apache.lucene.codecs.Codec;
-import org.apache.lucene.codecs.blockterms.LuceneVarGapDocFreqInterval;
 import org.apache.lucene.index.BasePostingsFormatTestCase;
 import org.apache.lucene.util.TestUtil;
 

lucene/core/src/java/org/apache/lucene/analysis/CharArrayMap.java

@@ -24,8 +24,6 @@ import java.util.Iterator;
 import java.util.Map;
 import java.util.Set;
 
-import org.apache.lucene.analysis.CharacterUtils;
-
 /**
  * A simple class that stores key Strings as char[]'s in a
  * hash table. Note that this is not a general purpose

lucene/core/src/java/org/apache/lucene/analysis/LowerCaseFilter.java

@@ -19,10 +19,7 @@ package org.apache.lucene.analysis;
 
 import java.io.IOException;
 
-import org.apache.lucene.analysis.TokenFilter;
-import org.apache.lucene.analysis.TokenStream;
 import org.apache.lucene.analysis.tokenattributes.CharTermAttribute;
-import org.apache.lucene.analysis.CharacterUtils;
 
 /**
  * Normalizes token text to lower case.

lucene/core/src/java/org/apache/lucene/analysis/StopFilter.java

@@ -20,10 +20,7 @@ package org.apache.lucene.analysis;
 import java.util.Arrays;
 import java.util.List;
 
-import org.apache.lucene.analysis.FilteringTokenFilter;
-import org.apache.lucene.analysis.TokenStream;
 import org.apache.lucene.analysis.tokenattributes.CharTermAttribute;
-import org.apache.lucene.analysis.CharArraySet;
 
 /**
  * Removes stop words from a token stream.

lucene/core/src/java/org/apache/lucene/analysis/StopwordAnalyzerBase.java

@@ -22,7 +22,6 @@ import java.nio.charset.StandardCharsets;
 import java.nio.file.Files;
 import java.nio.file.Path;
 
-import org.apache.lucene.analysis.Analyzer;
 import org.apache.lucene.util.IOUtils;
 
 /**

lucene/core/src/java/org/apache/lucene/store/ByteBuffersDataInput.java

@@ -25,8 +25,6 @@ import java.util.List;
 import java.util.Locale;
 import java.util.stream.Collectors;
 
-import org.apache.lucene.store.DataInput;
-import org.apache.lucene.store.RandomAccessInput;
 import org.apache.lucene.util.Accountable;
 import org.apache.lucene.util.RamUsageEstimator;
 

lucene/core/src/java/org/apache/lucene/store/ByteBuffersIndexInput.java

@@ -21,9 +21,6 @@ import java.io.UncheckedIOException;
 import java.util.Map;
 import java.util.Set;
 
-import org.apache.lucene.store.IndexInput;
-import org.apache.lucene.store.RandomAccessInput;
-
 /**
  * An {@link IndexInput} implementing {@link RandomAccessInput} and backed
  * by a {@link ByteBuffersDataInput}.

lucene/core/src/java/org/apache/lucene/store/GrowableByteArrayDataOutput.java

@@ -19,7 +19,6 @@ package org.apache.lucene.store;
 
 import java.io.IOException;
 
-import org.apache.lucene.store.DataOutput;
 import org.apache.lucene.util.ArrayUtil;
 import org.apache.lucene.util.UnicodeUtil;
 

lucene/core/src/java/org/apache/lucene/store/InputStreamDataInput.java

@@ -19,8 +19,6 @@ package org.apache.lucene.store;
 
 import java.io.*;
 
-import org.apache.lucene.store.DataInput;
-
 /**
  * A {@link DataInput} wrapping a plain {@link InputStream}.
  */

lucene/core/src/java/org/apache/lucene/store/NRTCachingDirectory.java

@@ -26,7 +26,6 @@ import java.util.Collections;
 import java.util.HashSet;
 import java.util.Set;
 
-import org.apache.lucene.store.RAMDirectory;      // javadocs
 import org.apache.lucene.util.Accountable;
 import org.apache.lucene.util.Accountables;
 import org.apache.lucene.util.IOUtils;

lucene/core/src/java/org/apache/lucene/util/MergedIterator.java

@@ -20,8 +20,6 @@ package org.apache.lucene.util;
 import java.util.Iterator;
 import java.util.NoSuchElementException;
 
-import org.apache.lucene.util.PriorityQueue;
-
 /**
  * Provides a merged sorted view from several sorted iterators.
  * <p>

lucene/core/src/test/org/apache/lucene/analysis/TestCharArrayMap.java

@@ -18,8 +18,6 @@ package org.apache.lucene.analysis;
 
 import java.util.*;
 
-import org.apache.lucene.analysis.CharArrayMap;
-import org.apache.lucene.analysis.CharArraySet;
 import org.apache.lucene.util.LuceneTestCase;
 
 public class TestCharArrayMap extends LuceneTestCase {

lucene/core/src/test/org/apache/lucene/analysis/TestCharArraySet.java

@@ -19,7 +19,6 @@ package org.apache.lucene.analysis;
 
 import java.util.*;
 
-import org.apache.lucene.analysis.CharArraySet;
 import org.apache.lucene.util.LuceneTestCase;
 import org.apache.lucene.util.SuppressForbidden;
 

lucene/core/src/test/org/apache/lucene/analysis/TestWordlistLoader.java

@@ -23,8 +23,6 @@ import java.io.StringReader;
 
 import org.apache.lucene.util.LuceneTestCase;
 
-import org.apache.lucene.analysis.WordlistLoader;
-
 public class TestWordlistLoader extends LuceneTestCase {
 
   public void testWordlistLoading() throws IOException {

lucene/core/src/test/org/apache/lucene/codecs/TestCodecUtil.java

@@ -20,7 +20,6 @@ package org.apache.lucene.codecs;
 import java.io.IOException;
 import java.util.concurrent.atomic.AtomicLong;
 
-import org.apache.lucene.codecs.CodecUtil;
 import org.apache.lucene.index.CorruptIndexException;
 import org.apache.lucene.store.BufferedChecksumIndexInput;
 import org.apache.lucene.store.ChecksumIndexInput;

lucene/core/src/test/org/apache/lucene/codecs/lucene70/TestLucene70DocValuesFormat.java

@@ -33,7 +33,6 @@ import org.apache.lucene.codecs.Codec;
 import org.apache.lucene.codecs.DocValuesFormat;
 import org.apache.lucene.codecs.PostingsFormat;
 import org.apache.lucene.codecs.asserting.AssertingCodec;
-import org.apache.lucene.codecs.lucene70.Lucene70DocValuesFormat;
 import org.apache.lucene.document.BinaryDocValuesField;
 import org.apache.lucene.document.Document;
 import org.apache.lucene.document.Field;

lucene/core/src/test/org/apache/lucene/index/TestMultiTermsEnum.java

@@ -27,17 +27,6 @@ import org.apache.lucene.codecs.FieldsProducer;
 import org.apache.lucene.document.Document;
 import org.apache.lucene.document.Field;
 import org.apache.lucene.document.StringField;
-import org.apache.lucene.index.CodecReader;
-import org.apache.lucene.index.DirectoryReader;
-import org.apache.lucene.index.FieldInfo;
-import org.apache.lucene.index.FieldInfos;
-import org.apache.lucene.index.FilterCodecReader;
-import org.apache.lucene.index.FilteredTermsEnum;
-import org.apache.lucene.index.IndexWriter;
-import org.apache.lucene.index.IndexWriterConfig;
-import org.apache.lucene.index.LeafReaderContext;
-import org.apache.lucene.index.Terms;
-import org.apache.lucene.index.TermsEnum;
 import org.apache.lucene.store.Directory;
 import org.apache.lucene.store.RAMDirectory;
 import org.apache.lucene.util.Accountable;

lucene/core/src/test/org/apache/lucene/index/TestOrdinalMap.java

@@ -25,7 +25,6 @@ import org.apache.lucene.analysis.MockAnalyzer;
 import org.apache.lucene.document.Document;
 import org.apache.lucene.document.SortedDocValuesField;
 import org.apache.lucene.document.SortedSetDocValuesField;
-import org.apache.lucene.index.OrdinalMap;
 import org.apache.lucene.store.Directory;
 import org.apache.lucene.util.BytesRef;
 import org.apache.lucene.util.LongValues;

lucene/core/src/test/org/apache/lucene/index/TestPointValues.java

@@ -33,7 +33,6 @@ import org.apache.lucene.document.StringField;
 import org.apache.lucene.document.Field.Store;
 import org.apache.lucene.index.PointValues.IntersectVisitor;
 import org.apache.lucene.index.PointValues.Relation;
-import org.apache.lucene.index.PointValues;
 import org.apache.lucene.store.Directory;
 import org.apache.lucene.store.FSDirectory;
 import org.apache.lucene.store.RAMDirectory;

lucene/core/src/test/org/apache/lucene/index/TestTermVectors.java

@@ -23,10 +23,6 @@ import org.apache.lucene.document.Document;
 import org.apache.lucene.document.Field;
 import org.apache.lucene.document.FieldType;
 import org.apache.lucene.document.TextField;
-import org.apache.lucene.index.DirectoryReader;
-import org.apache.lucene.index.IndexReader;
-import org.apache.lucene.index.IndexWriter;
-import org.apache.lucene.index.RandomIndexWriter;
 import org.apache.lucene.store.Directory;
 import org.apache.lucene.util.English;
 import org.apache.lucene.util.IOUtils;

lucene/core/src/test/org/apache/lucene/store/TestSleepingLockWrapper.java

@@ -20,10 +20,6 @@ package org.apache.lucene.store;
 import java.io.IOException;
 import java.nio.file.Path;
 
-import org.apache.lucene.store.BaseLockFactoryTestCase;
-import org.apache.lucene.store.Directory;
-import org.apache.lucene.store.SingleInstanceLockFactory;
-import org.apache.lucene.store.SleepingLockWrapper;
 import org.apache.lucene.util.TestUtil;
 
 /** Simple tests for SleepingLockWrapper */

lucene/core/src/test/org/apache/lucene/util/TestBytesRefArray.java

@@ -19,12 +19,6 @@ package org.apache.lucene.util;
 import java.io.IOException;
 import java.util.*;
 
-import org.apache.lucene.util.BytesRef;
-import org.apache.lucene.util.BytesRefIterator;
-import org.apache.lucene.util.Counter;
-import org.apache.lucene.util.LuceneTestCase;
-import org.apache.lucene.util.TestUtil;
-
 public class TestBytesRefArray extends LuceneTestCase {
 
   public void testAppend() throws IOException {

lucene/core/src/test/org/apache/lucene/util/packed/TestDirectPacked.java

@@ -27,8 +27,6 @@ import org.apache.lucene.store.IndexOutput;
 import org.apache.lucene.util.LongValues;
 import org.apache.lucene.util.LuceneTestCase;
 import org.apache.lucene.util.TestUtil;
-import org.apache.lucene.util.packed.DirectReader;
-import org.apache.lucene.util.packed.DirectWriter;
 
 public class TestDirectPacked extends LuceneTestCase {
   

lucene/expressions/src/java/org/apache/lucene/expressions/js/JavascriptLexer.java

@@ -1,8 +1,10 @@
 // ANTLR GENERATED CODE: DO NOT EDIT
 package org.apache.lucene.expressions.js;
-import org.antlr.v4.runtime.Lexer;
 import org.antlr.v4.runtime.CharStream;
-import org.antlr.v4.runtime.*;
+import org.antlr.v4.runtime.Lexer;
+import org.antlr.v4.runtime.RuntimeMetaData;
+import org.antlr.v4.runtime.Vocabulary;
+import org.antlr.v4.runtime.VocabularyImpl;
 import org.antlr.v4.runtime.atn.*;
 import org.antlr.v4.runtime.dfa.DFA;
 

lucene/facet/src/java/org/apache/lucene/facet/taxonomy/writercache/LruTaxonomyWriterCache.java

@@ -17,7 +17,6 @@
 package org.apache.lucene.facet.taxonomy.writercache;
 
 import org.apache.lucene.facet.taxonomy.FacetLabel;
-import org.apache.lucene.facet.taxonomy.writercache.TaxonomyWriterCache;
 
 /**
  * LRU {@link TaxonomyWriterCache} - good choice for huge taxonomies.

lucene/facet/src/java/org/apache/lucene/facet/taxonomy/writercache/UTF8TaxonomyWriterCache.java

@@ -17,7 +17,6 @@
 package org.apache.lucene.facet.taxonomy.writercache;
 
 import org.apache.lucene.facet.taxonomy.FacetLabel;
-import org.apache.lucene.facet.taxonomy.writercache.TaxonomyWriterCache;
 import org.apache.lucene.util.Accountable;
 import org.apache.lucene.util.ArrayUtil;
 import org.apache.lucene.util.ByteBlockPool.DirectTrackingAllocator;

lucene/facet/src/test/org/apache/lucene/facet/TestLongValueFacetCounts.java

@@ -28,9 +28,6 @@ import org.apache.lucene.document.Document;
 import org.apache.lucene.document.IntPoint;
 import org.apache.lucene.document.NumericDocValuesField;
 import org.apache.lucene.document.SortedNumericDocValuesField;
-import org.apache.lucene.facet.FacetResult;
-import org.apache.lucene.facet.Facets;
-import org.apache.lucene.facet.FacetsCollector;
 import org.apache.lucene.index.IndexReader;
 import org.apache.lucene.index.RandomIndexWriter;
 import org.apache.lucene.search.IndexSearcher;

lucene/facet/src/test/org/apache/lucene/facet/taxonomy/TestLRUHashMap.java

@@ -17,7 +17,6 @@
 package org.apache.lucene.facet.taxonomy;
 
 import org.apache.lucene.facet.FacetTestCase;
-import org.apache.lucene.facet.taxonomy.LRUHashMap;
 import org.junit.Test;
 
 public class TestLRUHashMap extends FacetTestCase {

lucene/misc/src/java/org/apache/lucene/store/NativeUnixDirectory.java

@@ -25,7 +25,6 @@ import java.nio.ByteBuffer;
 import java.nio.channels.FileChannel;
 import java.nio.file.Path;
 
-import org.apache.lucene.store.Directory; // javadoc
 import org.apache.lucene.store.IOContext.Context;
 import org.apache.lucene.util.SuppressForbidden;
 

lucene/misc/src/java/org/apache/lucene/store/WindowsDirectory.java

@@ -20,8 +20,6 @@ import java.io.IOException;
 import java.io.EOFException;
 import java.nio.file.Path;
 
-import org.apache.lucene.store.Directory; // javadoc
-
 /**
  * Native {@link Directory} implementation for Microsoft Windows.
  * <p>