http://commons.apache.org/proper/commons-net/: Apache Commons Net library contains a collection of network utilities and protocol implementations. Supported protocols include: Echo, Finger, FTP, NNTP, NTP, POP3(S), SMTP(S), Telnet, Whois (The Apache Software Foundation)
  • Henrik Sorensen
  • Jeff Nadler
  • William Noto
  • Stephane ESTE-GRACIAS
  • Dan Armbrust
  • Yuval Kashtan
  • Joseph Hindsley
  • Rob Hasselbaum
  • Mario Ivankovits
  • Naz Irizarry (MITRE Corp)
  • Tapan Karecha
  • Jason Mathews (MITRE Corp)
  • Winston Ojeda (Quad/Graphics, Inc.)
  • Ted Wise
  • Bogdan Drozdowski
  • Jeffrey D. Brekke (Quad/Graphics, Inc.)
  • Steve Cohen (javactivity.org)
  • Bruno D'Avanzo (Hewlett-Packard)
  • Daniel F. Savarese (<a href="http://www.savarese.com/">Savarese Software Research</a>)
  • Rory Winston ()
  • Rory Winston () 
public class org.apache.commons.net.util.SubnetUtils
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: org.apache.commons.net.util.SubnetUtils
  super_class: java.lang.Object
{
  private static final java.lang.String IP_ADDRESS;
    descriptor: Ljava/lang/String;
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL
    ConstantValue: "(\\d{1,3})\\.(\\d{1,3})\\.(\\d{1,3})\\.(\\d{1,3})"

  private static final java.lang.String SLASH_FORMAT;
    descriptor: Ljava/lang/String;
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL
    ConstantValue: "(\\d{1,3})\\.(\\d{1,3})\\.(\\d{1,3})\\.(\\d{1,3})/(\\d{1,3})"

  private static final java.util.regex.Pattern addressPattern;
    descriptor: Ljava/util/regex/Pattern;
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL

  private static final java.util.regex.Pattern cidrPattern;
    descriptor: Ljava/util/regex/Pattern;
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL

  private static final int NBITS;
    descriptor: I
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL
    ConstantValue: 32

  private int netmask;
    descriptor: I
    flags: (0x0002) ACC_PRIVATE

  private int address;
    descriptor: I
    flags: (0x0002) ACC_PRIVATE

  private int network;
    descriptor: I
    flags: (0x0002) ACC_PRIVATE

  private int broadcast;
    descriptor: I
    flags: (0x0002) ACC_PRIVATE

  private boolean inclusiveHostCount;
    descriptor: Z
    flags: (0x0002) ACC_PRIVATE

  static void <clinit>();
    descriptor: ()V
    flags: (0x0008) ACC_STATIC
    Code:
      stack=1, locals=0, args_size=0
         0: .line 31
            ldc "(\\d{1,3})\\.(\\d{1,3})\\.(\\d{1,3})\\.(\\d{1,3})"
            invokestatic java.util.regex.Pattern.compile:(Ljava/lang/String;)Ljava/util/regex/Pattern;
            putstatic org.apache.commons.net.util.SubnetUtils.addressPattern:Ljava/util/regex/Pattern;
         1: .line 32
            ldc "(\\d{1,3})\\.(\\d{1,3})\\.(\\d{1,3})\\.(\\d{1,3})/(\\d{1,3})"
            invokestatic java.util.regex.Pattern.compile:(Ljava/lang/String;)Ljava/util/regex/Pattern;
            putstatic org.apache.commons.net.util.SubnetUtils.cidrPattern:Ljava/util/regex/Pattern;
         2: .line 33
            return
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  public void <init>(java.lang.String);
    descriptor: (Ljava/lang/String;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // org.apache.commons.net.util.SubnetUtils this
        start local 1 // java.lang.String cidrNotation
         0: .line 50
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 35
            aload 0 /* this */
            iconst_0
            putfield org.apache.commons.net.util.SubnetUtils.netmask:I
         2: .line 36
            aload 0 /* this */
            iconst_0
            putfield org.apache.commons.net.util.SubnetUtils.address:I
         3: .line 37
            aload 0 /* this */
            iconst_0
            putfield org.apache.commons.net.util.SubnetUtils.network:I
         4: .line 38
            aload 0 /* this */
            iconst_0
            putfield org.apache.commons.net.util.SubnetUtils.broadcast:I
         5: .line 41
            aload 0 /* this */
            iconst_0
            putfield org.apache.commons.net.util.SubnetUtils.inclusiveHostCount:Z
         6: .line 51
            aload 0 /* this */
            aload 1 /* cidrNotation */
            invokevirtual org.apache.commons.net.util.SubnetUtils.calculate:(Ljava/lang/String;)V
         7: .line 52
            return
        end local 1 // java.lang.String cidrNotation
        end local 0 // org.apache.commons.net.util.SubnetUtils this
      LocalVariableTable:
        Start  End  Slot          Name  Signature
            0    8     0          this  Lorg/apache/commons/net/util/SubnetUtils;
            0    8     1  cidrNotation  Ljava/lang/String;
    MethodParameters:
              Name  Flags
      cidrNotation  

  public void <init>(java.lang.String, java.lang.String);
    descriptor: (Ljava/lang/String;Ljava/lang/String;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=4, locals=3, args_size=3
        start local 0 // org.apache.commons.net.util.SubnetUtils this
        start local 1 // java.lang.String address
        start local 2 // java.lang.String mask
         0: .line 61
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 35
            aload 0 /* this */
            iconst_0
            putfield org.apache.commons.net.util.SubnetUtils.netmask:I
         2: .line 36
            aload 0 /* this */
            iconst_0
            putfield org.apache.commons.net.util.SubnetUtils.address:I
         3: .line 37
            aload 0 /* this */
            iconst_0
            putfield org.apache.commons.net.util.SubnetUtils.network:I
         4: .line 38
            aload 0 /* this */
            iconst_0
            putfield org.apache.commons.net.util.SubnetUtils.broadcast:I
         5: .line 41
            aload 0 /* this */
            iconst_0
            putfield org.apache.commons.net.util.SubnetUtils.inclusiveHostCount:Z
         6: .line 62
            aload 0 /* this */
            aload 0 /* this */
            aload 1 /* address */
            aload 2 /* mask */
            invokevirtual org.apache.commons.net.util.SubnetUtils.toCidrNotation:(Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;
            invokevirtual org.apache.commons.net.util.SubnetUtils.calculate:(Ljava/lang/String;)V
         7: .line 63
            return
        end local 2 // java.lang.String mask
        end local 1 // java.lang.String address
        end local 0 // org.apache.commons.net.util.SubnetUtils this
      LocalVariableTable:
        Start  End  Slot     Name  Signature
            0    8     0     this  Lorg/apache/commons/net/util/SubnetUtils;
            0    8     1  address  Ljava/lang/String;
            0    8     2     mask  Ljava/lang/String;
    MethodParameters:
         Name  Flags
      address  
      mask     

  public boolean isInclusiveHostCount();
    descriptor: ()Z
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.apache.commons.net.util.SubnetUtils this
         0: .line 73
            aload 0 /* this */
            getfield org.apache.commons.net.util.SubnetUtils.inclusiveHostCount:Z
            ireturn
        end local 0 // org.apache.commons.net.util.SubnetUtils this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/apache/commons/net/util/SubnetUtils;

  public void setInclusiveHostCount(boolean);
    descriptor: (Z)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // org.apache.commons.net.util.SubnetUtils this
        start local 1 // boolean inclusiveHostCount
         0: .line 83
            aload 0 /* this */
            iload 1 /* inclusiveHostCount */
            putfield org.apache.commons.net.util.SubnetUtils.inclusiveHostCount:Z
         1: .line 84
            return
        end local 1 // boolean inclusiveHostCount
        end local 0 // org.apache.commons.net.util.SubnetUtils this
      LocalVariableTable:
        Start  End  Slot                Name  Signature
            0    2     0                this  Lorg/apache/commons/net/util/SubnetUtils;
            0    2     1  inclusiveHostCount  Z
    MethodParameters:
                    Name  Flags
      inclusiveHostCount  

  public final org.apache.commons.net.util.SubnetUtils$SubnetInfo getInfo();
    descriptor: ()Lorg/apache/commons/net/util/SubnetUtils$SubnetInfo;
    flags: (0x0011) ACC_PUBLIC, ACC_FINAL
    Code:
      stack=3, locals=1, args_size=1
        start local 0 // org.apache.commons.net.util.SubnetUtils this
         0: .line 252
            new org.apache.commons.net.util.SubnetUtils$SubnetInfo
            dup
            aload 0 /* this */
            invokespecial org.apache.commons.net.util.SubnetUtils$SubnetInfo.<init>:(Lorg/apache/commons/net/util/SubnetUtils;)V
            areturn
        end local 0 // org.apache.commons.net.util.SubnetUtils this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/apache/commons/net/util/SubnetUtils;

  private void calculate(java.lang.String);
    descriptor: (Ljava/lang/String;)V
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=5, locals=5, args_size=2
        start local 0 // org.apache.commons.net.util.SubnetUtils this
        start local 1 // java.lang.String mask
         0: .line 258
            getstatic org.apache.commons.net.util.SubnetUtils.cidrPattern:Ljava/util/regex/Pattern;
            aload 1 /* mask */
            invokevirtual java.util.regex.Pattern.matcher:(Ljava/lang/CharSequence;)Ljava/util/regex/Matcher;
            astore 2 /* matcher */
        start local 2 // java.util.regex.Matcher matcher
         1: .line 260
            aload 2 /* matcher */
            invokevirtual java.util.regex.Matcher.matches:()Z
            ifeq 12
         2: .line 261
            aload 0 /* this */
            aload 0 /* this */
            aload 2 /* matcher */
            invokevirtual org.apache.commons.net.util.SubnetUtils.matchAddress:(Ljava/util/regex/Matcher;)I
            putfield org.apache.commons.net.util.SubnetUtils.address:I
         3: .line 264
            aload 0 /* this */
            aload 2 /* matcher */
            iconst_5
            invokevirtual java.util.regex.Matcher.group:(I)Ljava/lang/String;
            invokestatic java.lang.Integer.parseInt:(Ljava/lang/String;)I
            iconst_0
            bipush 32
            invokevirtual org.apache.commons.net.util.SubnetUtils.rangeCheck:(III)I
            istore 3 /* cidrPart */
        start local 3 // int cidrPart
         4: .line 265
            iconst_0
            istore 4 /* j */
        start local 4 // int j
         5: goto 8
         6: .line 266
      StackMap locals: java.util.regex.Matcher int int
      StackMap stack:
            aload 0 /* this */
            dup
            getfield org.apache.commons.net.util.SubnetUtils.netmask:I
            iconst_1
            bipush 31
            iload 4 /* j */
            isub
            ishl
            ior
            putfield org.apache.commons.net.util.SubnetUtils.netmask:I
         7: .line 265
            iinc 4 /* j */ 1
      StackMap locals:
      StackMap stack:
         8: iload 4 /* j */
            iload 3 /* cidrPart */
            if_icmplt 6
        end local 4 // int j
         9: .line 270
            aload 0 /* this */
            aload 0 /* this */
            getfield org.apache.commons.net.util.SubnetUtils.address:I
            aload 0 /* this */
            getfield org.apache.commons.net.util.SubnetUtils.netmask:I
            iand
            putfield org.apache.commons.net.util.SubnetUtils.network:I
        10: .line 273
            aload 0 /* this */
            aload 0 /* this */
            getfield org.apache.commons.net.util.SubnetUtils.network:I
            aload 0 /* this */
            getfield org.apache.commons.net.util.SubnetUtils.netmask:I
            iconst_m1
            ixor
            ior
            putfield org.apache.commons.net.util.SubnetUtils.broadcast:I
        end local 3 // int cidrPart
        11: .line 274
            goto 13
        12: .line 275
      StackMap locals:
      StackMap stack:
            new java.lang.IllegalArgumentException
            dup
            new java.lang.StringBuilder
            dup
            ldc "Could not parse ["
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            aload 1 /* mask */
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            ldc "]"
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            invokespecial java.lang.IllegalArgumentException.<init>:(Ljava/lang/String;)V
            athrow
        13: .line 277
      StackMap locals:
      StackMap stack:
            return
        end local 2 // java.util.regex.Matcher matcher
        end local 1 // java.lang.String mask
        end local 0 // org.apache.commons.net.util.SubnetUtils this
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0   14     0      this  Lorg/apache/commons/net/util/SubnetUtils;
            0   14     1      mask  Ljava/lang/String;
            1   14     2   matcher  Ljava/util/regex/Matcher;
            4   11     3  cidrPart  I
            5    9     4         j  I
    MethodParameters:
      Name  Flags
      mask  

  private int toInteger(java.lang.String);
    descriptor: (Ljava/lang/String;)I
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=5, locals=3, args_size=2
        start local 0 // org.apache.commons.net.util.SubnetUtils this
        start local 1 // java.lang.String address
         0: .line 283
            getstatic org.apache.commons.net.util.SubnetUtils.addressPattern:Ljava/util/regex/Pattern;
            aload 1 /* address */
            invokevirtual java.util.regex.Pattern.matcher:(Ljava/lang/CharSequence;)Ljava/util/regex/Matcher;
            astore 2 /* matcher */
        start local 2 // java.util.regex.Matcher matcher
         1: .line 284
            aload 2 /* matcher */
            invokevirtual java.util.regex.Matcher.matches:()Z
            ifeq 3
         2: .line 285
            aload 0 /* this */
            aload 2 /* matcher */
            invokevirtual org.apache.commons.net.util.SubnetUtils.matchAddress:(Ljava/util/regex/Matcher;)I
            ireturn
         3: .line 287
      StackMap locals: java.util.regex.Matcher
      StackMap stack:
            new java.lang.IllegalArgumentException
            dup
            new java.lang.StringBuilder
            dup
            ldc "Could not parse ["
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            aload 1 /* address */
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            ldc "]"
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            invokespecial java.lang.IllegalArgumentException.<init>:(Ljava/lang/String;)V
            athrow
        end local 2 // java.util.regex.Matcher matcher
        end local 1 // java.lang.String address
        end local 0 // org.apache.commons.net.util.SubnetUtils this
      LocalVariableTable:
        Start  End  Slot     Name  Signature
            0    4     0     this  Lorg/apache/commons/net/util/SubnetUtils;
            0    4     1  address  Ljava/lang/String;
            1    4     2  matcher  Ljava/util/regex/Matcher;
    MethodParameters:
         Name  Flags
      address  

  private int matchAddress(java.util.regex.Matcher);
    descriptor: (Ljava/util/regex/Matcher;)I
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=5, locals=5, args_size=2
        start local 0 // org.apache.commons.net.util.SubnetUtils this
        start local 1 // java.util.regex.Matcher matcher
         0: .line 296
            iconst_0
            istore 2 /* addr */
        start local 2 // int addr
         1: .line 297
            iconst_1
            istore 3 /* i */
        start local 3 // int i
         2: goto 6
         3: .line 298
      StackMap locals: int int
      StackMap stack:
            aload 0 /* this */
            aload 1 /* matcher */
            iload 3 /* i */
            invokevirtual java.util.regex.Matcher.group:(I)Ljava/lang/String;
            invokestatic java.lang.Integer.parseInt:(Ljava/lang/String;)I
            iconst_0
            sipush 255
            invokevirtual org.apache.commons.net.util.SubnetUtils.rangeCheck:(III)I
            istore 4 /* n */
        start local 4 // int n
         4: .line 299
            iload 2 /* addr */
            iload 4 /* n */
            sipush 255
            iand
            bipush 8
            iconst_4
            iload 3 /* i */
            isub
            imul
            ishl
            ior
            istore 2 /* addr */
        end local 4 // int n
         5: .line 297
            iinc 3 /* i */ 1
      StackMap locals:
      StackMap stack:
         6: iload 3 /* i */
            iconst_4
            if_icmple 3
        end local 3 // int i
         7: .line 301
            iload 2 /* addr */
            ireturn
        end local 2 // int addr
        end local 1 // java.util.regex.Matcher matcher
        end local 0 // org.apache.commons.net.util.SubnetUtils this
      LocalVariableTable:
        Start  End  Slot     Name  Signature
            0    8     0     this  Lorg/apache/commons/net/util/SubnetUtils;
            0    8     1  matcher  Ljava/util/regex/Matcher;
            1    8     2     addr  I
            2    7     3        i  I
            4    5     4        n  I
    MethodParameters:
         Name  Flags
      matcher  

  private int[] toArray(int);
    descriptor: (I)[I
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=7, locals=4, args_size=2
        start local 0 // org.apache.commons.net.util.SubnetUtils this
        start local 1 // int val
         0: .line 308
            iconst_4
            newarray 10
            astore 2 /* ret */
        start local 2 // int[] ret
         1: .line 309
            iconst_3
            istore 3 /* j */
        start local 3 // int j
         2: goto 5
         3: .line 310
      StackMap locals: int[] int
      StackMap stack:
            aload 2 /* ret */
            iload 3 /* j */
            dup2
            iaload
            iload 1 /* val */
            bipush 8
            iconst_3
            iload 3 /* j */
            isub
            imul
            iushr
            sipush 255
            iand
            ior
            iastore
         4: .line 309
            iinc 3 /* j */ -1
      StackMap locals:
      StackMap stack:
         5: iload 3 /* j */
            ifge 3
        end local 3 // int j
         6: .line 312
            aload 2 /* ret */
            areturn
        end local 2 // int[] ret
        end local 1 // int val
        end local 0 // org.apache.commons.net.util.SubnetUtils this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    7     0  this  Lorg/apache/commons/net/util/SubnetUtils;
            0    7     1   val  I
            1    7     2   ret  [I
            2    6     3     j  I
    MethodParameters:
      Name  Flags
      val   

  private java.lang.String format(int[]);
    descriptor: ([I)Ljava/lang/String;
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=3, locals=4, args_size=2
        start local 0 // org.apache.commons.net.util.SubnetUtils this
        start local 1 // int[] octets
         0: .line 319
            new java.lang.StringBuilder
            dup
            invokespecial java.lang.StringBuilder.<init>:()V
            astore 2 /* str */
        start local 2 // java.lang.StringBuilder str
         1: .line 320
            iconst_0
            istore 3 /* i */
        start local 3 // int i
         2: goto 7
         3: .line 321
      StackMap locals: java.lang.StringBuilder int
      StackMap stack:
            aload 2 /* str */
            aload 1 /* octets */
            iload 3 /* i */
            iaload
            invokevirtual java.lang.StringBuilder.append:(I)Ljava/lang/StringBuilder;
            pop
         4: .line 322
            iload 3 /* i */
            aload 1 /* octets */
            arraylength
            iconst_1
            isub
            if_icmpeq 6
         5: .line 323
            aload 2 /* str */
            ldc "."
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            pop
         6: .line 320
      StackMap locals:
      StackMap stack:
            iinc 3 /* i */ 1
      StackMap locals:
      StackMap stack:
         7: iload 3 /* i */
            aload 1 /* octets */
            arraylength
            if_icmplt 3
        end local 3 // int i
         8: .line 326
            aload 2 /* str */
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            areturn
        end local 2 // java.lang.StringBuilder str
        end local 1 // int[] octets
        end local 0 // org.apache.commons.net.util.SubnetUtils this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    9     0    this  Lorg/apache/commons/net/util/SubnetUtils;
            0    9     1  octets  [I
            1    9     2     str  Ljava/lang/StringBuilder;
            2    8     3       i  I
    MethodParameters:
        Name  Flags
      octets  

  private int rangeCheck(int, int, int);
    descriptor: (III)I
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=5, locals=4, args_size=4
        start local 0 // org.apache.commons.net.util.SubnetUtils this
        start local 1 // int value
        start local 2 // int begin
        start local 3 // int end
         0: .line 335
            iload 1 /* value */
            iload 2 /* begin */
            if_icmplt 2
            iload 1 /* value */
            iload 3 /* end */
            if_icmpgt 2
         1: .line 336
            iload 1 /* value */
            ireturn
         2: .line 339
      StackMap locals:
      StackMap stack:
            new java.lang.IllegalArgumentException
            dup
            new java.lang.StringBuilder
            dup
            ldc "Value ["
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            iload 1 /* value */
            invokevirtual java.lang.StringBuilder.append:(I)Ljava/lang/StringBuilder;
            ldc "] not in range ["
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            iload 2 /* begin */
            invokevirtual java.lang.StringBuilder.append:(I)Ljava/lang/StringBuilder;
            ldc ","
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            iload 3 /* end */
            invokevirtual java.lang.StringBuilder.append:(I)Ljava/lang/StringBuilder;
            ldc "]"
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            invokespecial java.lang.IllegalArgumentException.<init>:(Ljava/lang/String;)V
            athrow
        end local 3 // int end
        end local 2 // int begin
        end local 1 // int value
        end local 0 // org.apache.commons.net.util.SubnetUtils this
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0    3     0   this  Lorg/apache/commons/net/util/SubnetUtils;
            0    3     1  value  I
            0    3     2  begin  I
            0    3     3    end  I
    MethodParameters:
       Name  Flags
      value  
      begin  
      end    

  int pop(int);
    descriptor: (I)I
    flags: (0x0000) 
    Code:
      stack=3, locals=2, args_size=2
        start local 0 // org.apache.commons.net.util.SubnetUtils this
        start local 1 // int x
         0: .line 347
            iload 1 /* x */
            iload 1 /* x */
            iconst_1
            iushr
            ldc 1431655765
            iand
            isub
            istore 1 /* x */
         1: .line 348
            iload 1 /* x */
            ldc 858993459
            iand
            iload 1 /* x */
            iconst_2
            iushr
            ldc 858993459
            iand
            iadd
            istore 1 /* x */
         2: .line 349
            iload 1 /* x */
            iload 1 /* x */
            iconst_4
            iushr
            iadd
            ldc 252645135
            iand
            istore 1 /* x */
         3: .line 350
            iload 1 /* x */
            iload 1 /* x */
            bipush 8
            iushr
            iadd
            istore 1 /* x */
         4: .line 351
            iload 1 /* x */
            iload 1 /* x */
            bipush 16
            iushr
            iadd
            istore 1 /* x */
         5: .line 352
            iload 1 /* x */
            bipush 63
            iand
            ireturn
        end local 1 // int x
        end local 0 // org.apache.commons.net.util.SubnetUtils this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    6     0  this  Lorg/apache/commons/net/util/SubnetUtils;
            0    6     1     x  I
    MethodParameters:
      Name  Flags
      x     

  private java.lang.String toCidrNotation(java.lang.String, java.lang.String);
    descriptor: (Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=4, locals=3, args_size=3
        start local 0 // org.apache.commons.net.util.SubnetUtils this
        start local 1 // java.lang.String addr
        start local 2 // java.lang.String mask
         0: .line 360
            new java.lang.StringBuilder
            dup
            aload 1 /* addr */
            invokestatic java.lang.String.valueOf:(Ljava/lang/Object;)Ljava/lang/String;
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            ldc "/"
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            aload 0 /* this */
            aload 0 /* this */
            aload 2 /* mask */
            invokevirtual org.apache.commons.net.util.SubnetUtils.toInteger:(Ljava/lang/String;)I
            invokevirtual org.apache.commons.net.util.SubnetUtils.pop:(I)I
            invokevirtual java.lang.StringBuilder.append:(I)Ljava/lang/StringBuilder;
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            areturn
        end local 2 // java.lang.String mask
        end local 1 // java.lang.String addr
        end local 0 // org.apache.commons.net.util.SubnetUtils this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/apache/commons/net/util/SubnetUtils;
            0    1     1  addr  Ljava/lang/String;
            0    1     2  mask  Ljava/lang/String;
    MethodParameters:
      Name  Flags
      addr  
      mask  
}
SourceFile: "SubnetUtils.java"
NestMembers:
  org.apache.commons.net.util.SubnetUtils$SubnetInfo
InnerClasses:
  public final SubnetInfo = org.apache.commons.net.util.SubnetUtils$SubnetInfo of org.apache.commons.net.util.SubnetUtils