https://lucene.apache.org/lucene-parent/lucene-analyzers-kuromoji: Lucene Kuromoji Japanese Morphological Analyzer (The Apache Software Foundation) 
final class org.apache.lucene.analysis.ja.util.ConnectionCostsWriter
  minor version: 0
  major version: 59
  flags: flags: (0x0030) ACC_FINAL, ACC_SUPER
  this_class: org.apache.lucene.analysis.ja.util.ConnectionCostsWriter
  super_class: java.lang.Object
{
  private final short[][] costs;
    descriptor: [[S
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  private final int forwardSize;
    descriptor: I
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  private final int backwardSize;
    descriptor: I
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  static final boolean $assertionsDisabled;
    descriptor: Z
    flags: (0x1018) ACC_STATIC, ACC_FINAL, ACC_SYNTHETIC

  static void <clinit>();
    descriptor: ()V
    flags: (0x0008) ACC_STATIC
    Code:
      stack=1, locals=0, args_size=0
         0: .line 32
            ldc Lorg/apache/lucene/analysis/ja/util/ConnectionCostsWriter;
            invokevirtual java.lang.Class.desiredAssertionStatus:()Z
            ifne 1
            iconst_1
            goto 2
      StackMap locals:
      StackMap stack:
         1: iconst_0
      StackMap locals:
      StackMap stack: int
         2: putstatic org.apache.lucene.analysis.ja.util.ConnectionCostsWriter.$assertionsDisabled:Z
            return
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  void <init>(int, int);
    descriptor: (II)V
    flags: (0x0000) 
    Code:
      stack=3, locals=3, args_size=3
        start local 0 // org.apache.lucene.analysis.ja.util.ConnectionCostsWriter this
        start local 1 // int forwardSize
        start local 2 // int backwardSize
         0: .line 40
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 41
            aload 0 /* this */
            iload 1 /* forwardSize */
            putfield org.apache.lucene.analysis.ja.util.ConnectionCostsWriter.forwardSize:I
         2: .line 42
            aload 0 /* this */
            iload 2 /* backwardSize */
            putfield org.apache.lucene.analysis.ja.util.ConnectionCostsWriter.backwardSize:I
         3: .line 43
            aload 0 /* this */
            iload 2 /* backwardSize */
            iload 1 /* forwardSize */
            multianewarray [[S 2
            putfield org.apache.lucene.analysis.ja.util.ConnectionCostsWriter.costs:[[S
         4: .line 44
            return
        end local 2 // int backwardSize
        end local 1 // int forwardSize
        end local 0 // org.apache.lucene.analysis.ja.util.ConnectionCostsWriter this
      LocalVariableTable:
        Start  End  Slot          Name  Signature
            0    5     0          this  Lorg/apache/lucene/analysis/ja/util/ConnectionCostsWriter;
            0    5     1   forwardSize  I
            0    5     2  backwardSize  I
    MethodParameters:
              Name  Flags
      forwardSize   
      backwardSize  

  public void add(int, int, int);
    descriptor: (III)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=4, args_size=4
        start local 0 // org.apache.lucene.analysis.ja.util.ConnectionCostsWriter this
        start local 1 // int forwardId
        start local 2 // int backwardId
        start local 3 // int cost
         0: .line 47
            aload 0 /* this */
            getfield org.apache.lucene.analysis.ja.util.ConnectionCostsWriter.costs:[[S
            iload 2 /* backwardId */
            aaload
            iload 1 /* forwardId */
            iload 3 /* cost */
            i2s
            sastore
         1: .line 48
            return
        end local 3 // int cost
        end local 2 // int backwardId
        end local 1 // int forwardId
        end local 0 // org.apache.lucene.analysis.ja.util.ConnectionCostsWriter this
      LocalVariableTable:
        Start  End  Slot        Name  Signature
            0    2     0        this  Lorg/apache/lucene/analysis/ja/util/ConnectionCostsWriter;
            0    2     1   forwardId  I
            0    2     2  backwardId  I
            0    2     3        cost  I
    MethodParameters:
            Name  Flags
      forwardId   
      backwardId  
      cost        

  public void write(java.nio.file.Path);
    descriptor: (Ljava/nio/file/Path;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=5, locals=18, args_size=2
        start local 0 // org.apache.lucene.analysis.ja.util.ConnectionCostsWriter this
        start local 1 // java.nio.file.Path baseDir
         0: .line 51
            aload 1 /* baseDir */
            iconst_0
            anewarray java.nio.file.attribute.FileAttribute
            invokestatic java.nio.file.Files.createDirectories:(Ljava/nio/file/Path;[Ljava/nio/file/attribute/FileAttribute;)Ljava/nio/file/Path;
            pop
         1: .line 52
            new java.lang.StringBuilder
            dup
            ldc Lorg/apache/lucene/analysis/ja/dict/ConnectionCosts;
            invokevirtual java.lang.Class.getName:()Ljava/lang/String;
            bipush 46
            bipush 47
            invokevirtual java.lang.String.replace:(CC)Ljava/lang/String;
            invokestatic java.lang.String.valueOf:(Ljava/lang/Object;)Ljava/lang/String;
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            ldc ".dat"
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            astore 2 /* fileName */
        start local 2 // java.lang.String fileName
         2: .line 53
            aconst_null
            astore 3
            aconst_null
            astore 4
         3: aload 1 /* baseDir */
            aload 2 /* fileName */
            invokeinterface java.nio.file.Path.resolve:(Ljava/lang/String;)Ljava/nio/file/Path;
            iconst_0
            anewarray java.nio.file.OpenOption
            invokestatic java.nio.file.Files.newOutputStream:(Ljava/nio/file/Path;[Ljava/nio/file/OpenOption;)Ljava/io/OutputStream;
            astore 5 /* os */
        start local 5 // java.io.OutputStream os
         4: .line 54
            new java.io.BufferedOutputStream
            dup
            aload 5 /* os */
            invokespecial java.io.BufferedOutputStream.<init>:(Ljava/io/OutputStream;)V
            astore 6 /* bos */
        start local 6 // java.io.OutputStream bos
         5: .line 55
            new org.apache.lucene.store.OutputStreamDataOutput
            dup
            aload 6 /* bos */
            invokespecial org.apache.lucene.store.OutputStreamDataOutput.<init>:(Ljava/io/OutputStream;)V
            astore 7 /* out */
        start local 7 // org.apache.lucene.store.DataOutput out
         6: .line 56
            aload 7 /* out */
            ldc "kuromoji_cc"
            iconst_1
            invokestatic org.apache.lucene.codecs.CodecUtil.writeHeader:(Lorg/apache/lucene/store/DataOutput;Ljava/lang/String;I)V
         7: .line 57
            aload 7 /* out */
            aload 0 /* this */
            getfield org.apache.lucene.analysis.ja.util.ConnectionCostsWriter.forwardSize:I
            invokevirtual org.apache.lucene.store.DataOutput.writeVInt:(I)V
         8: .line 58
            aload 7 /* out */
            aload 0 /* this */
            getfield org.apache.lucene.analysis.ja.util.ConnectionCostsWriter.backwardSize:I
            invokevirtual org.apache.lucene.store.DataOutput.writeVInt:(I)V
         9: .line 59
            iconst_0
            istore 8 /* last */
        start local 8 // int last
        10: .line 60
            getstatic org.apache.lucene.analysis.ja.util.ConnectionCostsWriter.$assertionsDisabled:Z
            ifne 11
            aload 0 /* this */
            getfield org.apache.lucene.analysis.ja.util.ConnectionCostsWriter.costs:[[S
            arraylength
            aload 0 /* this */
            getfield org.apache.lucene.analysis.ja.util.ConnectionCostsWriter.backwardSize:I
            if_icmpeq 11
            new java.lang.AssertionError
            dup
            invokespecial java.lang.AssertionError.<init>:()V
            athrow
        11: .line 61
      StackMap locals: org.apache.lucene.analysis.ja.util.ConnectionCostsWriter java.nio.file.Path java.lang.String java.lang.Throwable java.lang.Throwable java.io.OutputStream java.io.OutputStream org.apache.lucene.store.DataOutput int
      StackMap stack:
            aload 0 /* this */
            getfield org.apache.lucene.analysis.ja.util.ConnectionCostsWriter.costs:[[S
            dup
            astore 12
            arraylength
            istore 11
            iconst_0
            istore 10
            goto 22
      StackMap locals: org.apache.lucene.analysis.ja.util.ConnectionCostsWriter java.nio.file.Path java.lang.String java.lang.Throwable java.lang.Throwable java.io.OutputStream java.io.OutputStream org.apache.lucene.store.DataOutput int top int int short[][]
      StackMap stack:
        12: aload 12
            iload 10
            aaload
            astore 9 /* a */
        start local 9 // short[] a
        13: .line 62
            getstatic org.apache.lucene.analysis.ja.util.ConnectionCostsWriter.$assertionsDisabled:Z
            ifne 14
            aload 9 /* a */
            arraylength
            aload 0 /* this */
            getfield org.apache.lucene.analysis.ja.util.ConnectionCostsWriter.forwardSize:I
            if_icmpeq 14
            new java.lang.AssertionError
            dup
            invokespecial java.lang.AssertionError.<init>:()V
            athrow
        14: .line 63
      StackMap locals: org.apache.lucene.analysis.ja.util.ConnectionCostsWriter java.nio.file.Path java.lang.String java.lang.Throwable java.lang.Throwable java.io.OutputStream java.io.OutputStream org.apache.lucene.store.DataOutput int short[] int int short[][]
      StackMap stack:
            aload 9 /* a */
            dup
            astore 16
            arraylength
            istore 15
            iconst_0
            istore 14
            goto 20
      StackMap locals: org.apache.lucene.analysis.ja.util.ConnectionCostsWriter java.nio.file.Path java.lang.String java.lang.Throwable java.lang.Throwable java.io.OutputStream java.io.OutputStream org.apache.lucene.store.DataOutput int short[] int int short[][] top int int short[]
      StackMap stack:
        15: aload 16
            iload 14
            saload
            istore 13 /* cost */
        start local 13 // short cost
        16: .line 64
            iload 13 /* cost */
            iload 8 /* last */
            isub
            istore 17 /* delta */
        start local 17 // int delta
        17: .line 65
            aload 7 /* out */
            iload 17 /* delta */
            invokevirtual org.apache.lucene.store.DataOutput.writeZInt:(I)V
        18: .line 66
            iload 13 /* cost */
            istore 8 /* last */
        end local 17 // int delta
        end local 13 // short cost
        19: .line 63
            iinc 14 1
      StackMap locals:
      StackMap stack:
        20: iload 14
            iload 15
            if_icmplt 15
        end local 9 // short[] a
        21: .line 61
            iinc 10 1
      StackMap locals: org.apache.lucene.analysis.ja.util.ConnectionCostsWriter java.nio.file.Path java.lang.String java.lang.Throwable java.lang.Throwable java.io.OutputStream java.io.OutputStream org.apache.lucene.store.DataOutput int top int int short[][]
      StackMap stack:
        22: iload 10
            iload 11
            if_icmplt 12
        end local 8 // int last
        end local 7 // org.apache.lucene.store.DataOutput out
        23: .line 69
            aload 6 /* bos */
            ifnull 26
            aload 6 /* bos */
            invokevirtual java.io.OutputStream.close:()V
            goto 26
      StackMap locals: org.apache.lucene.analysis.ja.util.ConnectionCostsWriter java.nio.file.Path java.lang.String java.lang.Throwable java.lang.Throwable java.io.OutputStream java.io.OutputStream
      StackMap stack: java.lang.Throwable
        24: astore 3
            aload 6 /* bos */
            ifnull 25
            aload 6 /* bos */
            invokevirtual java.io.OutputStream.close:()V
        end local 6 // java.io.OutputStream bos
      StackMap locals:
      StackMap stack:
        25: aload 3
            athrow
      StackMap locals:
      StackMap stack:
        26: aload 5 /* os */
            ifnull 34
            aload 5 /* os */
            invokevirtual java.io.OutputStream.close:()V
            goto 34
      StackMap locals:
      StackMap stack: java.lang.Throwable
        27: astore 4
            aload 3
            ifnonnull 28
            aload 4
            astore 3
            goto 29
      StackMap locals:
      StackMap stack:
        28: aload 3
            aload 4
            if_acmpeq 29
            aload 3
            aload 4
            invokevirtual java.lang.Throwable.addSuppressed:(Ljava/lang/Throwable;)V
      StackMap locals:
      StackMap stack:
        29: aload 5 /* os */
            ifnull 30
            aload 5 /* os */
            invokevirtual java.io.OutputStream.close:()V
        end local 5 // java.io.OutputStream os
      StackMap locals:
      StackMap stack:
        30: aload 3
            athrow
      StackMap locals:
      StackMap stack: java.lang.Throwable
        31: astore 4
            aload 3
            ifnonnull 32
            aload 4
            astore 3
            goto 33
      StackMap locals:
      StackMap stack:
        32: aload 3
            aload 4
            if_acmpeq 33
            aload 3
            aload 4
            invokevirtual java.lang.Throwable.addSuppressed:(Ljava/lang/Throwable;)V
      StackMap locals:
      StackMap stack:
        33: aload 3
            athrow
        34: .line 70
      StackMap locals:
      StackMap stack:
            return
        end local 2 // java.lang.String fileName
        end local 1 // java.nio.file.Path baseDir
        end local 0 // org.apache.lucene.analysis.ja.util.ConnectionCostsWriter this
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0   35     0      this  Lorg/apache/lucene/analysis/ja/util/ConnectionCostsWriter;
            0   35     1   baseDir  Ljava/nio/file/Path;
            2   35     2  fileName  Ljava/lang/String;
            4   30     5        os  Ljava/io/OutputStream;
            5   25     6       bos  Ljava/io/OutputStream;
            6   23     7       out  Lorg/apache/lucene/store/DataOutput;
           10   23     8      last  I
           13   21     9         a  [S
           16   19    13      cost  S
           17   19    17     delta  I
      Exception table:
        from    to  target  type
           5    23      24  any
           4    26      27  any
           3    31      31  any
    Exceptions:
      throws java.io.IOException
    MethodParameters:
         Name  Flags
      baseDir  
}
SourceFile: "ConnectionCostsWriter.java"