http://lucene.apache.org/lucene-parent/lucene-analyzers-icu: Provides integration with ICU (International Components for Unicode) for stronger Unicode and internationalization support. (The Apache Software Foundation) 
public final class org.apache.lucene.analysis.icu.ICUTransformFilter extends org.apache.lucene.analysis.TokenFilter
  minor version: 0
  major version: 59
  flags: flags: (0x0031) ACC_PUBLIC, ACC_FINAL, ACC_SUPER
  this_class: org.apache.lucene.analysis.icu.ICUTransformFilter
  super_class: org.apache.lucene.analysis.TokenFilter
{
  private final com.ibm.icu.text.Transliterator transform;
    descriptor: Lcom/ibm/icu/text/Transliterator;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  private final com.ibm.icu.text.Transliterator$Position position;
    descriptor: Lcom/ibm/icu/text/Transliterator$Position;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  private final org.apache.lucene.analysis.tokenattributes.CharTermAttribute termAtt;
    descriptor: Lorg/apache/lucene/analysis/tokenattributes/CharTermAttribute;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  private final org.apache.lucene.analysis.icu.ICUTransformFilter$ReplaceableTermAttribute replaceableAttribute;
    descriptor: Lorg/apache/lucene/analysis/icu/ICUTransformFilter$ReplaceableTermAttribute;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  public void <init>(org.apache.lucene.analysis.TokenStream, com.ibm.icu.text.Transliterator);
    descriptor: (Lorg/apache/lucene/analysis/TokenStream;Lcom/ibm/icu/text/Transliterator;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=4, args_size=3
        start local 0 // org.apache.lucene.analysis.icu.ICUTransformFilter this
        start local 1 // org.apache.lucene.analysis.TokenStream input
        start local 2 // com.ibm.icu.text.Transliterator transform
         0: .line 77
            aload 0 /* this */
            aload 1 /* input */
            invokespecial org.apache.lucene.analysis.TokenFilter.<init>:(Lorg/apache/lucene/analysis/TokenStream;)V
         1: .line 62
            aload 0 /* this */
            new com.ibm.icu.text.Transliterator$Position
            dup
            invokespecial com.ibm.icu.text.Transliterator$Position.<init>:()V
            putfield org.apache.lucene.analysis.icu.ICUTransformFilter.position:Lcom/ibm/icu/text/Transliterator$Position;
         2: .line 65
            aload 0 /* this */
            aload 0 /* this */
            ldc Lorg/apache/lucene/analysis/tokenattributes/CharTermAttribute;
            invokevirtual org.apache.lucene.analysis.icu.ICUTransformFilter.addAttribute:(Ljava/lang/Class;)Lorg/apache/lucene/util/Attribute;
            checkcast org.apache.lucene.analysis.tokenattributes.CharTermAttribute
            putfield org.apache.lucene.analysis.icu.ICUTransformFilter.termAtt:Lorg/apache/lucene/analysis/tokenattributes/CharTermAttribute;
         3: .line 68
            aload 0 /* this */
            new org.apache.lucene.analysis.icu.ICUTransformFilter$ReplaceableTermAttribute
            dup
            invokespecial org.apache.lucene.analysis.icu.ICUTransformFilter$ReplaceableTermAttribute.<init>:()V
            putfield org.apache.lucene.analysis.icu.ICUTransformFilter.replaceableAttribute:Lorg/apache/lucene/analysis/icu/ICUTransformFilter$ReplaceableTermAttribute;
         4: .line 78
            aload 0 /* this */
            aload 2 /* transform */
            putfield org.apache.lucene.analysis.icu.ICUTransformFilter.transform:Lcom/ibm/icu/text/Transliterator;
         5: .line 84
            aload 2 /* transform */
            invokevirtual com.ibm.icu.text.Transliterator.getFilter:()Lcom/ibm/icu/text/UnicodeFilter;
            ifnonnull 9
            aload 2 /* transform */
            instanceof com.ibm.icu.text.RuleBasedTransliterator
            ifeq 9
         6: .line 85
            aload 2 /* transform */
            invokevirtual com.ibm.icu.text.Transliterator.getSourceSet:()Lcom/ibm/icu/text/UnicodeSet;
            astore 3 /* sourceSet */
        start local 3 // com.ibm.icu.text.UnicodeSet sourceSet
         7: .line 86
            aload 3 /* sourceSet */
            ifnull 9
            aload 3 /* sourceSet */
            invokevirtual com.ibm.icu.text.UnicodeSet.isEmpty:()Z
            ifne 9
         8: .line 87
            aload 2 /* transform */
            aload 3 /* sourceSet */
            invokevirtual com.ibm.icu.text.Transliterator.setFilter:(Lcom/ibm/icu/text/UnicodeFilter;)V
        end local 3 // com.ibm.icu.text.UnicodeSet sourceSet
         9: .line 89
      StackMap locals: org.apache.lucene.analysis.icu.ICUTransformFilter org.apache.lucene.analysis.TokenStream com.ibm.icu.text.Transliterator
      StackMap stack:
            return
        end local 2 // com.ibm.icu.text.Transliterator transform
        end local 1 // org.apache.lucene.analysis.TokenStream input
        end local 0 // org.apache.lucene.analysis.icu.ICUTransformFilter this
      LocalVariableTable:
        Start  End  Slot       Name  Signature
            0   10     0       this  Lorg/apache/lucene/analysis/icu/ICUTransformFilter;
            0   10     1      input  Lorg/apache/lucene/analysis/TokenStream;
            0   10     2  transform  Lcom/ibm/icu/text/Transliterator;
            7    9     3  sourceSet  Lcom/ibm/icu/text/UnicodeSet;
    MethodParameters:
           Name  Flags
      input      
      transform  

  public boolean incrementToken();
    descriptor: ()Z
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=4, locals=2, args_size=1
        start local 0 // org.apache.lucene.analysis.icu.ICUTransformFilter this
         0: .line 96
            aload 0 /* this */
            getfield org.apache.lucene.analysis.icu.ICUTransformFilter.input:Lorg/apache/lucene/analysis/TokenStream;
            invokevirtual org.apache.lucene.analysis.TokenStream.incrementToken:()Z
            ifeq 9
         1: .line 97
            aload 0 /* this */
            getfield org.apache.lucene.analysis.icu.ICUTransformFilter.replaceableAttribute:Lorg/apache/lucene/analysis/icu/ICUTransformFilter$ReplaceableTermAttribute;
            aload 0 /* this */
            getfield org.apache.lucene.analysis.icu.ICUTransformFilter.termAtt:Lorg/apache/lucene/analysis/tokenattributes/CharTermAttribute;
            invokevirtual org.apache.lucene.analysis.icu.ICUTransformFilter$ReplaceableTermAttribute.setText:(Lorg/apache/lucene/analysis/tokenattributes/CharTermAttribute;)V
         2: .line 99
            aload 0 /* this */
            getfield org.apache.lucene.analysis.icu.ICUTransformFilter.termAtt:Lorg/apache/lucene/analysis/tokenattributes/CharTermAttribute;
            invokeinterface org.apache.lucene.analysis.tokenattributes.CharTermAttribute.length:()I
            istore 1 /* length */
        start local 1 // int length
         3: .line 100
            aload 0 /* this */
            getfield org.apache.lucene.analysis.icu.ICUTransformFilter.position:Lcom/ibm/icu/text/Transliterator$Position;
            iconst_0
            putfield com.ibm.icu.text.Transliterator$Position.start:I
         4: .line 101
            aload 0 /* this */
            getfield org.apache.lucene.analysis.icu.ICUTransformFilter.position:Lcom/ibm/icu/text/Transliterator$Position;
            iload 1 /* length */
            putfield com.ibm.icu.text.Transliterator$Position.limit:I
         5: .line 102
            aload 0 /* this */
            getfield org.apache.lucene.analysis.icu.ICUTransformFilter.position:Lcom/ibm/icu/text/Transliterator$Position;
            iconst_0
            putfield com.ibm.icu.text.Transliterator$Position.contextStart:I
         6: .line 103
            aload 0 /* this */
            getfield org.apache.lucene.analysis.icu.ICUTransformFilter.position:Lcom/ibm/icu/text/Transliterator$Position;
            iload 1 /* length */
            putfield com.ibm.icu.text.Transliterator$Position.contextLimit:I
         7: .line 105
            aload 0 /* this */
            getfield org.apache.lucene.analysis.icu.ICUTransformFilter.transform:Lcom/ibm/icu/text/Transliterator;
            aload 0 /* this */
            getfield org.apache.lucene.analysis.icu.ICUTransformFilter.replaceableAttribute:Lorg/apache/lucene/analysis/icu/ICUTransformFilter$ReplaceableTermAttribute;
            aload 0 /* this */
            getfield org.apache.lucene.analysis.icu.ICUTransformFilter.position:Lcom/ibm/icu/text/Transliterator$Position;
            iconst_0
            invokevirtual com.ibm.icu.text.Transliterator.filteredTransliterate:(Lcom/ibm/icu/text/Replaceable;Lcom/ibm/icu/text/Transliterator$Position;Z)V
         8: .line 106
            iconst_1
            ireturn
        end local 1 // int length
         9: .line 108
      StackMap locals:
      StackMap stack:
            iconst_0
            ireturn
        end local 0 // org.apache.lucene.analysis.icu.ICUTransformFilter this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0   10     0    this  Lorg/apache/lucene/analysis/icu/ICUTransformFilter;
            3    9     1  length  I
    Exceptions:
      throws java.io.IOException
}
SourceFile: "ICUTransformFilter.java"
NestMembers:
  org.apache.lucene.analysis.icu.ICUTransformFilter$ReplaceableTermAttribute
InnerClasses:
  public Position = com.ibm.icu.text.Transliterator$Position of com.ibm.icu.text.Transliterator
  final ReplaceableTermAttribute = org.apache.lucene.analysis.icu.ICUTransformFilter$ReplaceableTermAttribute of org.apache.lucene.analysis.icu.ICUTransformFilter