public class org.apache.tomcat.util.http.HeaderUtil
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: org.apache.tomcat.util.http.HeaderUtil
  super_class: java.lang.Object
{
  public static java.lang.String toPrintableString(byte[], int, int);
    descriptor: ([BII)Ljava/lang/String;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=3, locals=6, args_size=3
        start local 0 // byte[] bytes
        start local 1 // int offset
        start local 2 // int len
         0: .line 35
            new java.lang.StringBuilder
            dup
            invokespecial java.lang.StringBuilder.<init>:()V
            astore 3 /* result */
        start local 3 // java.lang.StringBuilder result
         1: .line 36
            iload 1 /* offset */
            istore 4 /* i */
        start local 4 // int i
         2: goto 11
         3: .line 37
      StackMap locals: java.lang.StringBuilder int
      StackMap stack:
            aload 0 /* bytes */
            iload 4 /* i */
            baload
            sipush 255
            iand
            i2c
            istore 5 /* c */
        start local 5 // char c
         4: .line 38
            iload 5 /* c */
            bipush 32
            if_icmplt 5
            iload 5 /* c */
            bipush 126
            if_icmple 9
         5: .line 39
      StackMap locals: int
      StackMap stack:
            aload 3 /* result */
            ldc "0x"
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            pop
         6: .line 40
            aload 3 /* result */
            iload 5 /* c */
            iconst_4
            ishr
            bipush 15
            iand
            bipush 16
            invokestatic java.lang.Character.forDigit:(II)C
            invokevirtual java.lang.StringBuilder.append:(C)Ljava/lang/StringBuilder;
            pop
         7: .line 41
            aload 3 /* result */
            iload 5 /* c */
            bipush 15
            iand
            bipush 16
            invokestatic java.lang.Character.forDigit:(II)C
            invokevirtual java.lang.StringBuilder.append:(C)Ljava/lang/StringBuilder;
            pop
         8: .line 42
            goto 10
         9: .line 43
      StackMap locals:
      StackMap stack:
            aload 3 /* result */
            iload 5 /* c */
            invokevirtual java.lang.StringBuilder.append:(C)Ljava/lang/StringBuilder;
            pop
        end local 5 // char c
        10: .line 36
      StackMap locals:
      StackMap stack:
            iinc 4 /* i */ 1
      StackMap locals:
      StackMap stack:
        11: iload 4 /* i */
            iload 1 /* offset */
            iload 2 /* len */
            iadd
            if_icmplt 3
        end local 4 // int i
        12: .line 46
            aload 3 /* result */
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            areturn
        end local 3 // java.lang.StringBuilder result
        end local 2 // int len
        end local 1 // int offset
        end local 0 // byte[] bytes
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0   13     0   bytes  [B
            0   13     1  offset  I
            0   13     2     len  I
            1   13     3  result  Ljava/lang/StringBuilder;
            2   12     4       i  I
            4   10     5       c  C
    MethodParameters:
        Name  Flags
      bytes   
      offset  
      len     

  private void <init>();
    descriptor: ()V
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.apache.tomcat.util.http.HeaderUtil this
         0: .line 50
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 52
            return
        end local 0 // org.apache.tomcat.util.http.HeaderUtil this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lorg/apache/tomcat/util/http/HeaderUtil;
}
SourceFile: "HeaderUtil.java"