abstract class sun.security.provider.SeedGenerator
  minor version: 0
  major version: 59
  flags: flags: (0x0420) ACC_SUPER, ACC_ABSTRACT
  this_class: sun.security.provider.SeedGenerator
  super_class: java.lang.Object
{
  private static sun.security.provider.SeedGenerator instance;
    descriptor: Lsun/security/provider/SeedGenerator;
    flags: (0x000a) ACC_PRIVATE, ACC_STATIC

  private static final sun.security.util.Debug debug;
    descriptor: Lsun/security/util/Debug;
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL

  static final java.lang.String URL_DEV_RANDOM;
    descriptor: Ljava/lang/String;
    flags: (0x0018) ACC_STATIC, ACC_FINAL
    ConstantValue: "file:/dev/random"

  static final java.lang.String URL_DEV_URANDOM;
    descriptor: Ljava/lang/String;
    flags: (0x0018) ACC_STATIC, ACC_FINAL
    ConstantValue: "file:/dev/urandom"

  static void <clinit>();
    descriptor: ()V
    flags: (0x0008) ACC_STATIC
    Code:
      stack=4, locals=2, args_size=0
         0: .line 82
            ldc "provider"
            invokestatic sun.security.util.Debug.getInstance:(Ljava/lang/String;)Lsun/security/util/Debug;
            putstatic sun.security.provider.SeedGenerator.debug:Lsun/security/util/Debug;
         1: .line 89
            invokestatic sun.security.provider.SunEntries.getSeedSource:()Ljava/lang/String;
            astore 0 /* egdSource */
        start local 0 // java.lang.String egdSource
         2: .line 100
            aload 0 /* egdSource */
            ldc "file:/dev/random"
            invokevirtual java.lang.String.equals:(Ljava/lang/Object;)Z
            ifne 3
            aload 0 /* egdSource */
            ldc "file:/dev/urandom"
            invokevirtual java.lang.String.equals:(Ljava/lang/Object;)Z
            ifeq 13
         3: .line 102
      StackMap locals: java.lang.String
      StackMap stack:
            new sun.security.provider.NativeSeedGenerator
            dup
            invokespecial sun.security.provider.NativeSeedGenerator.<init>:()V
            putstatic sun.security.provider.SeedGenerator.instance:Lsun/security/provider/SeedGenerator;
         4: .line 103
            getstatic sun.security.provider.SeedGenerator.debug:Lsun/security/util/Debug;
            ifnull 25
         5: .line 104
            getstatic sun.security.provider.SeedGenerator.debug:Lsun/security/util/Debug;
            ldc "Using operating system seed generator"
            invokevirtual sun.security.util.Debug.println:(Ljava/lang/String;)V
         6: .line 106
            goto 25
      StackMap locals:
      StackMap stack: java.io.IOException
         7: astore 1 /* e */
        start local 1 // java.io.IOException e
         8: .line 107
            getstatic sun.security.provider.SeedGenerator.debug:Lsun/security/util/Debug;
            ifnull 25
         9: .line 108
            getstatic sun.security.provider.SeedGenerator.debug:Lsun/security/util/Debug;
            new java.lang.StringBuilder
            dup
            ldc "Failed to use operating system seed generator: "
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
        10: .line 109
            aload 1 /* e */
            invokevirtual java.io.IOException.toString:()Ljava/lang/String;
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
        11: .line 108
            invokevirtual sun.security.util.Debug.println:(Ljava/lang/String;)V
        end local 1 // java.io.IOException e
        12: .line 112
            goto 25
      StackMap locals:
      StackMap stack:
        13: aload 0 /* egdSource */
            invokevirtual java.lang.String.length:()I
            ifeq 25
        14: .line 114
            new sun.security.provider.SeedGenerator$URLSeedGenerator
            dup
            aload 0 /* egdSource */
            invokespecial sun.security.provider.SeedGenerator$URLSeedGenerator.<init>:(Ljava/lang/String;)V
            putstatic sun.security.provider.SeedGenerator.instance:Lsun/security/provider/SeedGenerator;
        15: .line 115
            getstatic sun.security.provider.SeedGenerator.debug:Lsun/security/util/Debug;
            ifnull 25
        16: .line 116
            getstatic sun.security.provider.SeedGenerator.debug:Lsun/security/util/Debug;
            new java.lang.StringBuilder
            dup
            ldc "Using URL seed generator reading from "
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
        17: .line 117
            aload 0 /* egdSource */
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
        18: .line 116
            invokevirtual sun.security.util.Debug.println:(Ljava/lang/String;)V
        19: .line 119
            goto 25
      StackMap locals:
      StackMap stack: java.io.IOException
        20: astore 1 /* e */
        start local 1 // java.io.IOException e
        21: .line 120
            getstatic sun.security.provider.SeedGenerator.debug:Lsun/security/util/Debug;
            ifnull 25
        22: .line 121
            getstatic sun.security.provider.SeedGenerator.debug:Lsun/security/util/Debug;
            new java.lang.StringBuilder
            dup
            ldc "Failed to create seed generator with "
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
        23: .line 122
            aload 0 /* egdSource */
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            ldc ": "
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            aload 1 /* e */
            invokevirtual java.io.IOException.toString:()Ljava/lang/String;
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
        24: .line 121
            invokevirtual sun.security.util.Debug.println:(Ljava/lang/String;)V
        end local 1 // java.io.IOException e
        25: .line 127
      StackMap locals:
      StackMap stack:
            getstatic sun.security.provider.SeedGenerator.instance:Lsun/security/provider/SeedGenerator;
            ifnonnull 29
        26: .line 128
            getstatic sun.security.provider.SeedGenerator.debug:Lsun/security/util/Debug;
            ifnull 28
        27: .line 129
            getstatic sun.security.provider.SeedGenerator.debug:Lsun/security/util/Debug;
            ldc "Using default threaded seed generator"
            invokevirtual sun.security.util.Debug.println:(Ljava/lang/String;)V
        28: .line 131
      StackMap locals:
      StackMap stack:
            new sun.security.provider.SeedGenerator$ThreadedSeedGenerator
            dup
            invokespecial sun.security.provider.SeedGenerator$ThreadedSeedGenerator.<init>:()V
            putstatic sun.security.provider.SeedGenerator.instance:Lsun/security/provider/SeedGenerator;
        end local 0 // java.lang.String egdSource
        29: .line 133
      StackMap locals:
      StackMap stack:
            return
      LocalVariableTable:
        Start  End  Slot       Name  Signature
            2   29     0  egdSource  Ljava/lang/String;
            8   12     1          e  Ljava/io/IOException;
           21   25     1          e  Ljava/io/IOException;
      Exception table:
        from    to  target  type
           3     6       7  Class java.io.IOException
          14    19      20  Class java.io.IOException

  void <init>();
    descriptor: ()V
    flags: (0x0000) 
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // sun.security.provider.SeedGenerator this
         0: .line 77
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
            return
        end local 0 // sun.security.provider.SeedGenerator this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lsun/security/provider/SeedGenerator;

  public static void generateSeed(byte[]);
    descriptor: ([B)V
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // byte[] result
         0: .line 139
            getstatic sun.security.provider.SeedGenerator.instance:Lsun/security/provider/SeedGenerator;
            aload 0 /* result */
            invokevirtual sun.security.provider.SeedGenerator.getSeedBytes:([B)V
         1: .line 140
            return
        end local 0 // byte[] result
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    2     0  result  [B
    MethodParameters:
        Name  Flags
      result  

  abstract void getSeedBytes(byte[]);
    descriptor: ([B)V
    flags: (0x0400) ACC_ABSTRACT
    MethodParameters:
        Name  Flags
      result  

  static byte[] getSystemEntropy();
    descriptor: ()[B
    flags: (0x0008) ACC_STATIC
    Code:
      stack=3, locals=2, args_size=0
         0: .line 152
            ldc "SHA"
            invokestatic java.security.MessageDigest.getInstance:(Ljava/lang/String;)Ljava/security/MessageDigest;
            astore 0 /* md */
        start local 0 // java.security.MessageDigest md
         1: .line 153
            goto 4
        end local 0 // java.security.MessageDigest md
      StackMap locals:
      StackMap stack: java.security.NoSuchAlgorithmException
         2: pop
         3: .line 154
            new java.lang.InternalError
            dup
            ldc "internal error: SHA-1 not available."
            invokespecial java.lang.InternalError.<init>:(Ljava/lang/String;)V
            athrow
        start local 0 // java.security.MessageDigest md
         4: .line 158
      StackMap locals: java.security.MessageDigest
      StackMap stack:
            invokestatic java.lang.System.currentTimeMillis:()J
            l2i
            i2b
            istore 1 /* b */
        start local 1 // byte b
         5: .line 159
            aload 0 /* md */
            iload 1 /* b */
            invokevirtual java.security.MessageDigest.update:(B)V
         6: .line 162
            new sun.security.provider.SeedGenerator$1
            dup
            aload 0 /* md */
            invokespecial sun.security.provider.SeedGenerator$1.<init>:(Ljava/security/MessageDigest;)V
         7: .line 161
            invokestatic java.security.AccessController.doPrivileged:(Ljava/security/PrivilegedAction;)Ljava/lang/Object;
            pop
         8: .line 212
            aload 0 /* md */
            invokevirtual java.security.MessageDigest.digest:()[B
            areturn
        end local 1 // byte b
        end local 0 // java.security.MessageDigest md
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            1    2     0    md  Ljava/security/MessageDigest;
            4    9     0    md  Ljava/security/MessageDigest;
            5    9     1     b  B
      Exception table:
        from    to  target  type
           0     1       2  Class java.security.NoSuchAlgorithmException

  private static void addNetworkAdapterInfo(java.security.MessageDigest);
    descriptor: (Ljava/security/MessageDigest;)V
    flags: (0x000a) ACC_PRIVATE, ACC_STATIC
    Code:
      stack=2, locals=4, args_size=1
        start local 0 // java.security.MessageDigest md
         0: .line 224
            invokestatic java.net.NetworkInterface.getNetworkInterfaces:()Ljava/util/Enumeration;
         1: .line 223
            astore 1 /* ifcs */
        start local 1 // java.util.Enumeration ifcs
         2: .line 225
            goto 10
         3: .line 226
      StackMap locals: java.util.Enumeration
      StackMap stack:
            aload 1 /* ifcs */
            invokeinterface java.util.Enumeration.nextElement:()Ljava/lang/Object;
            checkcast java.net.NetworkInterface
            astore 2 /* ifc */
        start local 2 // java.net.NetworkInterface ifc
         4: .line 227
            aload 0 /* md */
            aload 2 /* ifc */
            invokevirtual java.net.NetworkInterface.toString:()Ljava/lang/String;
            invokevirtual java.lang.String.getBytes:()[B
            invokevirtual java.security.MessageDigest.update:([B)V
         5: .line 228
            aload 2 /* ifc */
            invokevirtual java.net.NetworkInterface.isVirtual:()Z
            ifne 10
         6: .line 229
            aload 2 /* ifc */
            invokevirtual java.net.NetworkInterface.getHardwareAddress:()[B
            astore 3 /* bs */
        start local 3 // byte[] bs
         7: .line 230
            aload 3 /* bs */
            ifnull 10
         8: .line 231
            aload 0 /* md */
            aload 3 /* bs */
            invokevirtual java.security.MessageDigest.update:([B)V
         9: .line 232
            goto 13
        end local 3 // byte[] bs
        end local 2 // java.net.NetworkInterface ifc
        10: .line 225
      StackMap locals:
      StackMap stack:
            aload 1 /* ifcs */
            invokeinterface java.util.Enumeration.hasMoreElements:()Z
            ifne 3
        end local 1 // java.util.Enumeration ifcs
        11: .line 236
            goto 13
      StackMap locals: java.security.MessageDigest
      StackMap stack: java.lang.Exception
        12: pop
        13: .line 238
      StackMap locals:
      StackMap stack:
            return
        end local 0 // java.security.MessageDigest md
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0   14     0    md  Ljava/security/MessageDigest;
            2   11     1  ifcs  Ljava/util/Enumeration<Ljava/net/NetworkInterface;>;
            4   10     2   ifc  Ljava/net/NetworkInterface;
            7   10     3    bs  [B
      Exception table:
        from    to  target  type
           0    11      12  Class java.lang.Exception
    MethodParameters:
      Name  Flags
      md    

  private static byte[] longToByteArray(long);
    descriptor: (J)[B
    flags: (0x000a) ACC_PRIVATE, ACC_STATIC
    Code:
      stack=4, locals=4, args_size=1
        start local 0 // long l
         0: .line 245
            bipush 8
            newarray 8
            astore 2 /* retVal */
        start local 2 // byte[] retVal
         1: .line 247
            iconst_0
            istore 3 /* i */
        start local 3 // int i
         2: goto 6
         3: .line 248
      StackMap locals: byte[] int
      StackMap stack:
            aload 2 /* retVal */
            iload 3 /* i */
            lload 0 /* l */
            l2i
            i2b
            bastore
         4: .line 249
            lload 0 /* l */
            bipush 8
            lshr
            lstore 0 /* l */
         5: .line 247
            iinc 3 /* i */ 1
      StackMap locals:
      StackMap stack:
         6: iload 3 /* i */
            bipush 8
            if_icmplt 3
        end local 3 // int i
         7: .line 252
            aload 2 /* retVal */
            areturn
        end local 2 // byte[] retVal
        end local 0 // long l
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    8     0       l  J
            1    8     2  retVal  [B
            2    7     3       i  I
    MethodParameters:
      Name  Flags
      l     
}
SourceFile: "SeedGenerator.java"
NestMembers:
  sun.security.provider.SeedGenerator$1  sun.security.provider.SeedGenerator$ThreadedSeedGenerator  sun.security.provider.SeedGenerator$ThreadedSeedGenerator$1  sun.security.provider.SeedGenerator$ThreadedSeedGenerator$BogusThread  sun.security.provider.SeedGenerator$URLSeedGenerator  sun.security.provider.SeedGenerator$URLSeedGenerator$1
InnerClasses:
  sun.security.provider.SeedGenerator$1
  private ThreadedSeedGenerator = sun.security.provider.SeedGenerator$ThreadedSeedGenerator of sun.security.provider.SeedGenerator
  URLSeedGenerator = sun.security.provider.SeedGenerator$URLSeedGenerator of sun.security.provider.SeedGenerator