abstract class sun.security.ec.ECDSASignature extends java.security.SignatureSpi
  minor version: 0
  major version: 59
  flags: flags: (0x0420) ACC_SUPER, ACC_ABSTRACT
  this_class: sun.security.ec.ECDSASignature
  super_class: java.security.SignatureSpi
{
  private final java.security.MessageDigest messageDigest;
    descriptor: Ljava/security/MessageDigest;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  private java.security.SecureRandom random;
    descriptor: Ljava/security/SecureRandom;
    flags: (0x0002) ACC_PRIVATE

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

  private java.security.interfaces.ECPrivateKey privateKey;
    descriptor: Ljava/security/interfaces/ECPrivateKey;
    flags: (0x0002) ACC_PRIVATE

  private java.security.interfaces.ECPublicKey publicKey;
    descriptor: Ljava/security/interfaces/ECPublicKey;
    flags: (0x0002) ACC_PRIVATE

  private java.security.spec.ECParameterSpec sigParams;
    descriptor: Ljava/security/spec/ECParameterSpec;
    flags: (0x0002) ACC_PRIVATE

  void <init>();
    descriptor: ()V
    flags: (0x0000) 
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // sun.security.ec.ECDSASignature this
         0: .line 77
            aload 0 /* this */
            invokespecial java.security.SignatureSpi.<init>:()V
         1: .line 70
            aload 0 /* this */
            aconst_null
            putfield sun.security.ec.ECDSASignature.sigParams:Ljava/security/spec/ECParameterSpec;
         2: .line 78
            aload 0 /* this */
            aconst_null
            putfield sun.security.ec.ECDSASignature.messageDigest:Ljava/security/MessageDigest;
         3: .line 79
            return
        end local 0 // sun.security.ec.ECDSASignature this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    4     0  this  Lsun/security/ec/ECDSASignature;

  void <init>(java.lang.String);
    descriptor: (Ljava/lang/String;)V
    flags: (0x0000) 
    Code:
      stack=3, locals=3, args_size=2
        start local 0 // sun.security.ec.ECDSASignature this
        start local 1 // java.lang.String digestName
         0: .line 84
            aload 0 /* this */
            invokespecial java.security.SignatureSpi.<init>:()V
         1: .line 70
            aload 0 /* this */
            aconst_null
            putfield sun.security.ec.ECDSASignature.sigParams:Ljava/security/spec/ECParameterSpec;
         2: .line 86
            aload 0 /* this */
            aload 1 /* digestName */
            invokestatic java.security.MessageDigest.getInstance:(Ljava/lang/String;)Ljava/security/MessageDigest;
            putfield sun.security.ec.ECDSASignature.messageDigest:Ljava/security/MessageDigest;
         3: .line 87
            goto 6
      StackMap locals: sun.security.ec.ECDSASignature java.lang.String
      StackMap stack: java.security.NoSuchAlgorithmException
         4: astore 2 /* e */
        start local 2 // java.security.NoSuchAlgorithmException e
         5: .line 88
            new java.security.ProviderException
            dup
            aload 2 /* e */
            invokespecial java.security.ProviderException.<init>:(Ljava/lang/Throwable;)V
            athrow
        end local 2 // java.security.NoSuchAlgorithmException e
         6: .line 90
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            iconst_0
            putfield sun.security.ec.ECDSASignature.needsReset:Z
         7: .line 91
            return
        end local 1 // java.lang.String digestName
        end local 0 // sun.security.ec.ECDSASignature this
      LocalVariableTable:
        Start  End  Slot        Name  Signature
            0    8     0        this  Lsun/security/ec/ECDSASignature;
            0    8     1  digestName  Ljava/lang/String;
            5    6     2           e  Ljava/security/NoSuchAlgorithmException;
      Exception table:
        from    to  target  type
           2     3       4  Class java.security.NoSuchAlgorithmException
    MethodParameters:
            Name  Flags
      digestName  

  protected void engineInitVerify(java.security.PublicKey);
    descriptor: (Ljava/security/PublicKey;)V
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=3, locals=3, args_size=2
        start local 0 // sun.security.ec.ECDSASignature this
        start local 1 // java.security.PublicKey publicKey
         0: .line 202
            aload 1 /* publicKey */
            invokestatic sun.security.ec.ECKeyFactory.toECKey:(Ljava/security/Key;)Ljava/security/interfaces/ECKey;
            checkcast java.security.interfaces.ECPublicKey
            astore 2 /* key */
        start local 2 // java.security.interfaces.ECPublicKey key
         1: .line 203
            aload 0 /* this */
            getfield sun.security.ec.ECDSASignature.sigParams:Ljava/security/spec/ECParameterSpec;
            aload 2 /* key */
            invokeinterface java.security.interfaces.ECPublicKey.getParams:()Ljava/security/spec/ECParameterSpec;
            invokestatic sun.security.ec.ECDSASignature.isCompatible:(Ljava/security/spec/ECParameterSpec;Ljava/security/spec/ECParameterSpec;)Z
            ifne 3
         2: .line 204
            new java.security.InvalidKeyException
            dup
            ldc "Key params does not match signature params"
            invokespecial java.security.InvalidKeyException.<init>:(Ljava/lang/String;)V
            athrow
         3: .line 209
      StackMap locals: java.security.interfaces.ECPublicKey
      StackMap stack:
            aload 0 /* this */
            aload 2 /* key */
            putfield sun.security.ec.ECDSASignature.publicKey:Ljava/security/interfaces/ECPublicKey;
         4: .line 210
            aload 0 /* this */
            aconst_null
            putfield sun.security.ec.ECDSASignature.privateKey:Ljava/security/interfaces/ECPrivateKey;
         5: .line 211
            aload 0 /* this */
            invokevirtual sun.security.ec.ECDSASignature.resetDigest:()V
         6: .line 212
            return
        end local 2 // java.security.interfaces.ECPublicKey key
        end local 1 // java.security.PublicKey publicKey
        end local 0 // sun.security.ec.ECDSASignature this
      LocalVariableTable:
        Start  End  Slot       Name  Signature
            0    7     0       this  Lsun/security/ec/ECDSASignature;
            0    7     1  publicKey  Ljava/security/PublicKey;
            1    7     2        key  Ljava/security/interfaces/ECPublicKey;
    Exceptions:
      throws java.security.InvalidKeyException
    MethodParameters:
           Name  Flags
      publicKey  

  protected void engineInitSign(java.security.PrivateKey);
    descriptor: (Ljava/security/PrivateKey;)V
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=3, locals=2, args_size=2
        start local 0 // sun.security.ec.ECDSASignature this
        start local 1 // java.security.PrivateKey privateKey
         0: .line 218
            aload 0 /* this */
            aload 1 /* privateKey */
            aconst_null
            invokevirtual sun.security.ec.ECDSASignature.engineInitSign:(Ljava/security/PrivateKey;Ljava/security/SecureRandom;)V
         1: .line 219
            return
        end local 1 // java.security.PrivateKey privateKey
        end local 0 // sun.security.ec.ECDSASignature this
      LocalVariableTable:
        Start  End  Slot        Name  Signature
            0    2     0        this  Lsun/security/ec/ECDSASignature;
            0    2     1  privateKey  Ljava/security/PrivateKey;
    Exceptions:
      throws java.security.InvalidKeyException
    MethodParameters:
            Name  Flags
      privateKey  

  protected void engineInitSign(java.security.PrivateKey, java.security.SecureRandom);
    descriptor: (Ljava/security/PrivateKey;Ljava/security/SecureRandom;)V
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=3, locals=4, args_size=3
        start local 0 // sun.security.ec.ECDSASignature this
        start local 1 // java.security.PrivateKey privateKey
        start local 2 // java.security.SecureRandom random
         0: .line 225
            aload 1 /* privateKey */
            invokestatic sun.security.ec.ECKeyFactory.toECKey:(Ljava/security/Key;)Ljava/security/interfaces/ECKey;
            checkcast java.security.interfaces.ECPrivateKey
            astore 3 /* key */
        start local 3 // java.security.interfaces.ECPrivateKey key
         1: .line 226
            aload 0 /* this */
            getfield sun.security.ec.ECDSASignature.sigParams:Ljava/security/spec/ECParameterSpec;
            aload 3 /* key */
            invokeinterface java.security.interfaces.ECPrivateKey.getParams:()Ljava/security/spec/ECParameterSpec;
            invokestatic sun.security.ec.ECDSASignature.isCompatible:(Ljava/security/spec/ECParameterSpec;Ljava/security/spec/ECParameterSpec;)Z
            ifne 3
         2: .line 227
            new java.security.InvalidKeyException
            dup
            ldc "Key params does not match signature params"
            invokespecial java.security.InvalidKeyException.<init>:(Ljava/lang/String;)V
            athrow
         3: .line 232
      StackMap locals: java.security.interfaces.ECPrivateKey
      StackMap stack:
            aload 0 /* this */
            aload 3 /* key */
            putfield sun.security.ec.ECDSASignature.privateKey:Ljava/security/interfaces/ECPrivateKey;
         4: .line 233
            aload 0 /* this */
            aconst_null
            putfield sun.security.ec.ECDSASignature.publicKey:Ljava/security/interfaces/ECPublicKey;
         5: .line 234
            aload 0 /* this */
            aload 2 /* random */
            putfield sun.security.ec.ECDSASignature.random:Ljava/security/SecureRandom;
         6: .line 235
            aload 0 /* this */
            invokevirtual sun.security.ec.ECDSASignature.resetDigest:()V
         7: .line 236
            return
        end local 3 // java.security.interfaces.ECPrivateKey key
        end local 2 // java.security.SecureRandom random
        end local 1 // java.security.PrivateKey privateKey
        end local 0 // sun.security.ec.ECDSASignature this
      LocalVariableTable:
        Start  End  Slot        Name  Signature
            0    8     0        this  Lsun/security/ec/ECDSASignature;
            0    8     1  privateKey  Ljava/security/PrivateKey;
            0    8     2      random  Ljava/security/SecureRandom;
            1    8     3         key  Ljava/security/interfaces/ECPrivateKey;
    Exceptions:
      throws java.security.InvalidKeyException
    MethodParameters:
            Name  Flags
      privateKey  
      random      

  protected void resetDigest();
    descriptor: ()V
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // sun.security.ec.ECDSASignature this
         0: .line 242
            aload 0 /* this */
            getfield sun.security.ec.ECDSASignature.needsReset:Z
            ifeq 4
         1: .line 243
            aload 0 /* this */
            getfield sun.security.ec.ECDSASignature.messageDigest:Ljava/security/MessageDigest;
            ifnull 3
         2: .line 244
            aload 0 /* this */
            getfield sun.security.ec.ECDSASignature.messageDigest:Ljava/security/MessageDigest;
            invokevirtual java.security.MessageDigest.reset:()V
         3: .line 246
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            iconst_0
            putfield sun.security.ec.ECDSASignature.needsReset:Z
         4: .line 248
      StackMap locals:
      StackMap stack:
            return
        end local 0 // sun.security.ec.ECDSASignature this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    5     0  this  Lsun/security/ec/ECDSASignature;

  protected byte[] getDigestValue();
    descriptor: ()[B
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // sun.security.ec.ECDSASignature this
         0: .line 254
            aload 0 /* this */
            iconst_0
            putfield sun.security.ec.ECDSASignature.needsReset:Z
         1: .line 255
            aload 0 /* this */
            getfield sun.security.ec.ECDSASignature.messageDigest:Ljava/security/MessageDigest;
            invokevirtual java.security.MessageDigest.digest:()[B
            areturn
        end local 0 // sun.security.ec.ECDSASignature this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lsun/security/ec/ECDSASignature;
    Exceptions:
      throws java.security.SignatureException

  protected void engineUpdate(byte);
    descriptor: (B)V
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // sun.security.ec.ECDSASignature this
        start local 1 // byte b
         0: .line 261
            aload 0 /* this */
            getfield sun.security.ec.ECDSASignature.messageDigest:Ljava/security/MessageDigest;
            iload 1 /* b */
            invokevirtual java.security.MessageDigest.update:(B)V
         1: .line 262
            aload 0 /* this */
            iconst_1
            putfield sun.security.ec.ECDSASignature.needsReset:Z
         2: .line 263
            return
        end local 1 // byte b
        end local 0 // sun.security.ec.ECDSASignature this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    3     0  this  Lsun/security/ec/ECDSASignature;
            0    3     1     b  B
    Exceptions:
      throws java.security.SignatureException
    MethodParameters:
      Name  Flags
      b     

  protected void engineUpdate(byte[], int, int);
    descriptor: ([BII)V
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=4, locals=4, args_size=4
        start local 0 // sun.security.ec.ECDSASignature this
        start local 1 // byte[] b
        start local 2 // int off
        start local 3 // int len
         0: .line 269
            aload 0 /* this */
            getfield sun.security.ec.ECDSASignature.messageDigest:Ljava/security/MessageDigest;
            aload 1 /* b */
            iload 2 /* off */
            iload 3 /* len */
            invokevirtual java.security.MessageDigest.update:([BII)V
         1: .line 270
            aload 0 /* this */
            iconst_1
            putfield sun.security.ec.ECDSASignature.needsReset:Z
         2: .line 271
            return
        end local 3 // int len
        end local 2 // int off
        end local 1 // byte[] b
        end local 0 // sun.security.ec.ECDSASignature this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    3     0  this  Lsun/security/ec/ECDSASignature;
            0    3     1     b  [B
            0    3     2   off  I
            0    3     3   len  I
    Exceptions:
      throws java.security.SignatureException
    MethodParameters:
      Name  Flags
      b     
      off   
      len   

  protected void engineUpdate(java.nio.ByteBuffer);
    descriptor: (Ljava/nio/ByteBuffer;)V
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=2, locals=3, args_size=2
        start local 0 // sun.security.ec.ECDSASignature this
        start local 1 // java.nio.ByteBuffer byteBuffer
         0: .line 276
            aload 1 /* byteBuffer */
            invokevirtual java.nio.ByteBuffer.remaining:()I
            istore 2 /* len */
        start local 2 // int len
         1: .line 277
            iload 2 /* len */
            ifgt 3
         2: .line 278
            return
         3: .line 281
      StackMap locals: int
      StackMap stack:
            aload 0 /* this */
            getfield sun.security.ec.ECDSASignature.messageDigest:Ljava/security/MessageDigest;
            aload 1 /* byteBuffer */
            invokevirtual java.security.MessageDigest.update:(Ljava/nio/ByteBuffer;)V
         4: .line 282
            aload 0 /* this */
            iconst_1
            putfield sun.security.ec.ECDSASignature.needsReset:Z
         5: .line 283
            return
        end local 2 // int len
        end local 1 // java.nio.ByteBuffer byteBuffer
        end local 0 // sun.security.ec.ECDSASignature this
      LocalVariableTable:
        Start  End  Slot        Name  Signature
            0    6     0        this  Lsun/security/ec/ECDSASignature;
            0    6     1  byteBuffer  Ljava/nio/ByteBuffer;
            1    6     2         len  I
    MethodParameters:
            Name  Flags
      byteBuffer  

  private static boolean isCompatible(java.security.spec.ECParameterSpec, java.security.spec.ECParameterSpec);
    descriptor: (Ljava/security/spec/ECParameterSpec;Ljava/security/spec/ECParameterSpec;)Z
    flags: (0x000a) ACC_PRIVATE, ACC_STATIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // java.security.spec.ECParameterSpec sigParams
        start local 1 // java.security.spec.ECParameterSpec keyParams
         0: .line 287
            aload 0 /* sigParams */
            ifnonnull 2
         1: .line 289
            iconst_1
            ireturn
         2: .line 291
      StackMap locals:
      StackMap stack:
            aload 0 /* sigParams */
            aload 1 /* keyParams */
            invokestatic sun.security.util.ECUtil.equals:(Ljava/security/spec/ECParameterSpec;Ljava/security/spec/ECParameterSpec;)Z
            ireturn
        end local 1 // java.security.spec.ECParameterSpec keyParams
        end local 0 // java.security.spec.ECParameterSpec sigParams
      LocalVariableTable:
        Start  End  Slot       Name  Signature
            0    3     0  sigParams  Ljava/security/spec/ECParameterSpec;
            0    3     1  keyParams  Ljava/security/spec/ECParameterSpec;
    MethodParameters:
           Name  Flags
      sigParams  
      keyParams  

  private byte[] signDigestImpl(sun.security.ec.ECDSAOperations, int, byte[], sun.security.ec.ECPrivateKeyImpl, java.security.SecureRandom);
    descriptor: (Lsun/security/ec/ECDSAOperations;I[BLsun/security/ec/ECPrivateKeyImpl;Ljava/security/SecureRandom;)[B
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=5, locals=11, args_size=6
        start local 0 // sun.security.ec.ECDSASignature this
        start local 1 // sun.security.ec.ECDSAOperations ops
        start local 2 // int seedBits
        start local 3 // byte[] digest
        start local 4 // sun.security.ec.ECPrivateKeyImpl privImpl
        start local 5 // java.security.SecureRandom random
         0: .line 299
            iload 2 /* seedBits */
            bipush 7
            iadd
            bipush 8
            idiv
            newarray 8
            astore 6 /* seedBytes */
        start local 6 // byte[] seedBytes
         1: .line 300
            aload 4 /* privImpl */
            invokevirtual sun.security.ec.ECPrivateKeyImpl.getArrayS:()[B
            astore 7 /* s */
        start local 7 // byte[] s
         2: .line 305
            sipush 128
            istore 8 /* numAttempts */
        start local 8 // int numAttempts
         3: .line 306
            iconst_0
            istore 9 /* i */
        start local 9 // int i
         4: goto 11
         5: .line 307
      StackMap locals: sun.security.ec.ECDSASignature sun.security.ec.ECDSAOperations int byte[] sun.security.ec.ECPrivateKeyImpl java.security.SecureRandom byte[] byte[] int int
      StackMap stack:
            aload 5 /* random */
            aload 6 /* seedBytes */
            invokevirtual java.security.SecureRandom.nextBytes:([B)V
         6: .line 308
            new sun.security.ec.ECDSAOperations$Seed
            dup
            aload 6 /* seedBytes */
            invokespecial sun.security.ec.ECDSAOperations$Seed.<init>:([B)V
            astore 10 /* seed */
        start local 10 // sun.security.ec.ECDSAOperations$Seed seed
         7: .line 310
            aload 1 /* ops */
            aload 7 /* s */
            aload 3 /* digest */
            aload 10 /* seed */
            invokevirtual sun.security.ec.ECDSAOperations.signDigest:([B[BLsun/security/ec/ECDSAOperations$Seed;)[B
         8: areturn
         9: .line 311
      StackMap locals: sun.security.ec.ECDSASignature sun.security.ec.ECDSAOperations int byte[] sun.security.ec.ECPrivateKeyImpl java.security.SecureRandom byte[] byte[] int int sun.security.ec.ECDSAOperations$Seed
      StackMap stack: sun.security.ec.ECOperations$IntermediateValueException
            pop
        end local 10 // sun.security.ec.ECDSAOperations$Seed seed
        10: .line 306
            iinc 9 /* i */ 1
      StackMap locals:
      StackMap stack:
        11: iload 9 /* i */
            iload 8 /* numAttempts */
            if_icmplt 5
        end local 9 // int i
        12: .line 316
            new java.security.SignatureException
            dup
            new java.lang.StringBuilder
            dup
            ldc "Unable to produce signature after "
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
        13: .line 317
            iload 8 /* numAttempts */
            invokevirtual java.lang.StringBuilder.append:(I)Ljava/lang/StringBuilder;
            ldc " attempts"
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
        14: .line 316
            invokespecial java.security.SignatureException.<init>:(Ljava/lang/String;)V
            athrow
        end local 8 // int numAttempts
        end local 7 // byte[] s
        end local 6 // byte[] seedBytes
        end local 5 // java.security.SecureRandom random
        end local 4 // sun.security.ec.ECPrivateKeyImpl privImpl
        end local 3 // byte[] digest
        end local 2 // int seedBits
        end local 1 // sun.security.ec.ECDSAOperations ops
        end local 0 // sun.security.ec.ECDSASignature this
      LocalVariableTable:
        Start  End  Slot         Name  Signature
            0   15     0         this  Lsun/security/ec/ECDSASignature;
            0   15     1          ops  Lsun/security/ec/ECDSAOperations;
            0   15     2     seedBits  I
            0   15     3       digest  [B
            0   15     4     privImpl  Lsun/security/ec/ECPrivateKeyImpl;
            0   15     5       random  Ljava/security/SecureRandom;
            1   15     6    seedBytes  [B
            2   15     7            s  [B
            3   15     8  numAttempts  I
            4   12     9            i  I
            7   10    10         seed  Lsun/security/ec/ECDSAOperations$Seed;
      Exception table:
        from    to  target  type
           7     8       9  Class sun.security.ec.ECOperations$IntermediateValueException
    Exceptions:
      throws java.security.SignatureException
    MethodParameters:
          Name  Flags
      ops       
      seedBits  
      digest    
      privImpl  
      random    

  private java.util.Optional<byte[]> signDigestImpl(java.security.interfaces.ECPrivateKey, byte[], java.security.SecureRandom);
    descriptor: (Ljava/security/interfaces/ECPrivateKey;[BLjava/security/SecureRandom;)Ljava/util/Optional;
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=6, locals=9, args_size=4
        start local 0 // sun.security.ec.ECDSASignature this
        start local 1 // java.security.interfaces.ECPrivateKey privateKey
        start local 2 // byte[] digest
        start local 3 // java.security.SecureRandom random
         0: .line 324
            aload 1 /* privateKey */
            instanceof sun.security.ec.ECPrivateKeyImpl
            ifne 2
         1: .line 325
            invokestatic java.util.Optional.empty:()Ljava/util/Optional;
            areturn
         2: .line 327
      StackMap locals:
      StackMap stack:
            aload 1 /* privateKey */
            checkcast sun.security.ec.ECPrivateKeyImpl
            astore 4 /* privImpl */
        start local 4 // sun.security.ec.ECPrivateKeyImpl privImpl
         3: .line 328
            aload 1 /* privateKey */
            invokeinterface java.security.interfaces.ECPrivateKey.getParams:()Ljava/security/spec/ECParameterSpec;
            astore 5 /* params */
        start local 5 // java.security.spec.ECParameterSpec params
         4: .line 331
            aload 5 /* params */
            invokevirtual java.security.spec.ECParameterSpec.getOrder:()Ljava/math/BigInteger;
            invokevirtual java.math.BigInteger.bitLength:()I
            bipush 64
            iadd
            istore 6 /* seedBits */
        start local 6 // int seedBits
         5: .line 333
            aload 5 /* params */
            invokestatic sun.security.ec.ECDSAOperations.forParameters:(Ljava/security/spec/ECParameterSpec;)Ljava/util/Optional;
         6: .line 332
            astore 7 /* opsOpt */
        start local 7 // java.util.Optional opsOpt
         7: .line 334
            aload 7 /* opsOpt */
            invokevirtual java.util.Optional.isPresent:()Z
            ifne 9
         8: .line 335
            invokestatic java.util.Optional.empty:()Ljava/util/Optional;
            areturn
         9: .line 337
      StackMap locals: sun.security.ec.ECDSASignature java.security.interfaces.ECPrivateKey byte[] java.security.SecureRandom sun.security.ec.ECPrivateKeyImpl java.security.spec.ECParameterSpec int java.util.Optional
      StackMap stack:
            aload 0 /* this */
            aload 7 /* opsOpt */
            invokevirtual java.util.Optional.get:()Ljava/lang/Object;
            checkcast sun.security.ec.ECDSAOperations
            iload 6 /* seedBits */
            aload 2 /* digest */
        10: .line 338
            aload 4 /* privImpl */
            aload 3 /* random */
        11: .line 337
            invokevirtual sun.security.ec.ECDSASignature.signDigestImpl:(Lsun/security/ec/ECDSAOperations;I[BLsun/security/ec/ECPrivateKeyImpl;Ljava/security/SecureRandom;)[B
            astore 8 /* sig */
        start local 8 // byte[] sig
        12: .line 339
            aload 8 /* sig */
            invokestatic java.util.Optional.of:(Ljava/lang/Object;)Ljava/util/Optional;
            areturn
        end local 8 // byte[] sig
        end local 7 // java.util.Optional opsOpt
        end local 6 // int seedBits
        end local 5 // java.security.spec.ECParameterSpec params
        end local 4 // sun.security.ec.ECPrivateKeyImpl privImpl
        end local 3 // java.security.SecureRandom random
        end local 2 // byte[] digest
        end local 1 // java.security.interfaces.ECPrivateKey privateKey
        end local 0 // sun.security.ec.ECDSASignature this
      LocalVariableTable:
        Start  End  Slot        Name  Signature
            0   13     0        this  Lsun/security/ec/ECDSASignature;
            0   13     1  privateKey  Ljava/security/interfaces/ECPrivateKey;
            0   13     2      digest  [B
            0   13     3      random  Ljava/security/SecureRandom;
            3   13     4    privImpl  Lsun/security/ec/ECPrivateKeyImpl;
            4   13     5      params  Ljava/security/spec/ECParameterSpec;
            5   13     6    seedBits  I
            7   13     7      opsOpt  Ljava/util/Optional<Lsun/security/ec/ECDSAOperations;>;
           12   13     8         sig  [B
    Exceptions:
      throws java.security.SignatureException
    Signature: (Ljava/security/interfaces/ECPrivateKey;[BLjava/security/SecureRandom;)Ljava/util/Optional<[B>;
    MethodParameters:
            Name  Flags
      privateKey  
      digest      
      random      

  private byte[] signDigestNative(java.security.interfaces.ECPrivateKey, byte[], java.security.SecureRandom);
    descriptor: (Ljava/security/interfaces/ECPrivateKey;[BLjava/security/SecureRandom;)[B
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=5, locals=11, args_size=4
        start local 0 // sun.security.ec.ECDSASignature this
        start local 1 // java.security.interfaces.ECPrivateKey privateKey
        start local 2 // byte[] digest
        start local 3 // java.security.SecureRandom random
         0: .line 346
            aload 1 /* privateKey */
            invokeinterface java.security.interfaces.ECPrivateKey.getS:()Ljava/math/BigInteger;
            invokevirtual java.math.BigInteger.toByteArray:()[B
            astore 4 /* s */
        start local 4 // byte[] s
         1: .line 347
            aload 1 /* privateKey */
            invokeinterface java.security.interfaces.ECPrivateKey.getParams:()Ljava/security/spec/ECParameterSpec;
            astore 5 /* params */
        start local 5 // java.security.spec.ECParameterSpec params
         2: .line 350
            aconst_null
            aload 5 /* params */
            invokestatic sun.security.util.ECUtil.encodeECParameterSpec:(Ljava/security/Provider;Ljava/security/spec/ECParameterSpec;)[B
            astore 6 /* encodedParams */
        start local 6 // byte[] encodedParams
         3: .line 351
            aload 5 /* params */
            invokevirtual java.security.spec.ECParameterSpec.getOrder:()Ljava/math/BigInteger;
            invokevirtual java.math.BigInteger.bitLength:()I
            istore 7 /* orderLength */
        start local 7 // int orderLength
         4: .line 354
            iload 7 /* orderLength */
            bipush 7
            iadd
            iconst_3
            ishr
            iconst_1
            iadd
            iconst_2
            imul
            newarray 8
            astore 8 /* seed */
        start local 8 // byte[] seed
         5: .line 356
            aload 3 /* random */
            aload 8 /* seed */
            invokevirtual java.security.SecureRandom.nextBytes:([B)V
         6: .line 359
            aload 3 /* random */
            invokevirtual java.security.SecureRandom.nextInt:()I
            istore 9 /* timingArgument */
        start local 9 // int timingArgument
         7: .line 361
            iload 9 /* timingArgument */
            iconst_1
            ior
            istore 9 /* timingArgument */
         8: .line 364
            aload 2 /* digest */
            aload 4 /* s */
            aload 6 /* encodedParams */
            aload 8 /* seed */
         9: .line 365
            iload 9 /* timingArgument */
        10: .line 364
            invokestatic sun.security.ec.ECDSASignature.signDigest:([B[B[B[BI)[B
        11: areturn
        12: .line 366
      StackMap locals: sun.security.ec.ECDSASignature java.security.interfaces.ECPrivateKey byte[] java.security.SecureRandom byte[] java.security.spec.ECParameterSpec byte[] int byte[] int
      StackMap stack: java.security.GeneralSecurityException
            astore 10 /* e */
        start local 10 // java.security.GeneralSecurityException e
        13: .line 367
            new java.security.SignatureException
            dup
            ldc "Could not sign data"
            aload 10 /* e */
            invokespecial java.security.SignatureException.<init>:(Ljava/lang/String;Ljava/lang/Throwable;)V
            athrow
        end local 10 // java.security.GeneralSecurityException e
        end local 9 // int timingArgument
        end local 8 // byte[] seed
        end local 7 // int orderLength
        end local 6 // byte[] encodedParams
        end local 5 // java.security.spec.ECParameterSpec params
        end local 4 // byte[] s
        end local 3 // java.security.SecureRandom random
        end local 2 // byte[] digest
        end local 1 // java.security.interfaces.ECPrivateKey privateKey
        end local 0 // sun.security.ec.ECDSASignature this
      LocalVariableTable:
        Start  End  Slot            Name  Signature
            0   14     0            this  Lsun/security/ec/ECDSASignature;
            0   14     1      privateKey  Ljava/security/interfaces/ECPrivateKey;
            0   14     2          digest  [B
            0   14     3          random  Ljava/security/SecureRandom;
            1   14     4               s  [B
            2   14     5          params  Ljava/security/spec/ECParameterSpec;
            3   14     6   encodedParams  [B
            4   14     7     orderLength  I
            5   14     8            seed  [B
            7   14     9  timingArgument  I
           13   14    10               e  Ljava/security/GeneralSecurityException;
      Exception table:
        from    to  target  type
           8    11      12  Class java.security.GeneralSecurityException
    Exceptions:
      throws java.security.SignatureException
    MethodParameters:
            Name  Flags
      privateKey  
      digest      
      random      

  protected byte[] engineSign();
    descriptor: ()[B
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=4, locals=4, args_size=1
        start local 0 // sun.security.ec.ECDSASignature this
         0: .line 375
            aload 0 /* this */
            getfield sun.security.ec.ECDSASignature.random:Ljava/security/SecureRandom;
            ifnonnull 2
         1: .line 376
            aload 0 /* this */
            invokestatic sun.security.jca.JCAUtil.getSecureRandom:()Ljava/security/SecureRandom;
            putfield sun.security.ec.ECDSASignature.random:Ljava/security/SecureRandom;
         2: .line 379
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            invokevirtual sun.security.ec.ECDSASignature.getDigestValue:()[B
            astore 1 /* digest */
        start local 1 // byte[] digest
         3: .line 380
            aload 0 /* this */
            aload 0 /* this */
            getfield sun.security.ec.ECDSASignature.privateKey:Ljava/security/interfaces/ECPrivateKey;
            aload 1 /* digest */
            aload 0 /* this */
            getfield sun.security.ec.ECDSASignature.random:Ljava/security/SecureRandom;
            invokevirtual sun.security.ec.ECDSASignature.signDigestImpl:(Ljava/security/interfaces/ECPrivateKey;[BLjava/security/SecureRandom;)Ljava/util/Optional;
            astore 2 /* sigOpt */
        start local 2 // java.util.Optional sigOpt
         4: .line 382
            aload 2 /* sigOpt */
            invokevirtual java.util.Optional.isPresent:()Z
            ifeq 7
         5: .line 383
            aload 2 /* sigOpt */
            invokevirtual java.util.Optional.get:()Ljava/lang/Object;
            checkcast byte[]
            astore 3 /* sig */
        start local 3 // byte[] sig
         6: .line 384
            goto 8
        end local 3 // byte[] sig
         7: .line 385
      StackMap locals: byte[] java.util.Optional
      StackMap stack:
            aload 0 /* this */
            aload 0 /* this */
            getfield sun.security.ec.ECDSASignature.privateKey:Ljava/security/interfaces/ECPrivateKey;
            aload 1 /* digest */
            aload 0 /* this */
            getfield sun.security.ec.ECDSASignature.random:Ljava/security/SecureRandom;
            invokevirtual sun.security.ec.ECDSASignature.signDigestNative:(Ljava/security/interfaces/ECPrivateKey;[BLjava/security/SecureRandom;)[B
            astore 3 /* sig */
        start local 3 // byte[] sig
         8: .line 388
      StackMap locals: byte[]
      StackMap stack:
            aload 3 /* sig */
            invokestatic sun.security.util.ECUtil.encodeSignature:([B)[B
            areturn
        end local 3 // byte[] sig
        end local 2 // java.util.Optional sigOpt
        end local 1 // byte[] digest
        end local 0 // sun.security.ec.ECDSASignature this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    9     0    this  Lsun/security/ec/ECDSASignature;
            3    9     1  digest  [B
            4    9     2  sigOpt  Ljava/util/Optional<[B>;
            6    7     3     sig  [B
            8    9     3     sig  [B
    Exceptions:
      throws java.security.SignatureException

  protected boolean engineVerify(byte[]);
    descriptor: ([B)Z
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=4, locals=6, args_size=2
        start local 0 // sun.security.ec.ECDSASignature this
        start local 1 // byte[] signature
         0: .line 396
            aload 0 /* this */
            getfield sun.security.ec.ECDSASignature.publicKey:Ljava/security/interfaces/ECPublicKey;
            invokeinterface java.security.interfaces.ECPublicKey.getParams:()Ljava/security/spec/ECParameterSpec;
            astore 3 /* params */
        start local 3 // java.security.spec.ECParameterSpec params
         1: .line 398
            aconst_null
            aload 3 /* params */
            invokestatic sun.security.util.ECUtil.encodeECParameterSpec:(Ljava/security/Provider;Ljava/security/spec/ECParameterSpec;)[B
            astore 4 /* encodedParams */
        start local 4 // byte[] encodedParams
         2: .line 400
            aload 0 /* this */
            getfield sun.security.ec.ECDSASignature.publicKey:Ljava/security/interfaces/ECPublicKey;
            instanceof sun.security.ec.ECPublicKeyImpl
            ifeq 5
         3: .line 401
            aload 0 /* this */
            getfield sun.security.ec.ECDSASignature.publicKey:Ljava/security/interfaces/ECPublicKey;
            checkcast sun.security.ec.ECPublicKeyImpl
            invokevirtual sun.security.ec.ECPublicKeyImpl.getEncodedPublicValue:()[B
            astore 2 /* w */
        start local 2 // byte[] w
         4: .line 402
            goto 6
        end local 2 // byte[] w
         5: .line 403
      StackMap locals: sun.security.ec.ECDSASignature byte[] top java.security.spec.ECParameterSpec byte[]
      StackMap stack:
            aload 0 /* this */
            getfield sun.security.ec.ECDSASignature.publicKey:Ljava/security/interfaces/ECPublicKey;
            invokeinterface java.security.interfaces.ECPublicKey.getW:()Ljava/security/spec/ECPoint;
            aload 3 /* params */
            invokevirtual java.security.spec.ECParameterSpec.getCurve:()Ljava/security/spec/EllipticCurve;
            invokestatic sun.security.util.ECUtil.encodePoint:(Ljava/security/spec/ECPoint;Ljava/security/spec/EllipticCurve;)[B
            astore 2 /* w */
        start local 2 // byte[] w
         6: .line 409
      StackMap locals: sun.security.ec.ECDSASignature byte[] byte[] java.security.spec.ECParameterSpec byte[]
      StackMap stack:
            aload 1 /* signature */
            invokestatic sun.security.util.ECUtil.decodeSignature:([B)[B
            aload 0 /* this */
            invokevirtual sun.security.ec.ECDSASignature.getDigestValue:()[B
         7: .line 410
            aload 2 /* w */
            aload 4 /* encodedParams */
         8: .line 408
            invokestatic sun.security.ec.ECDSASignature.verifySignedDigest:([B[B[B[B)Z
         9: ireturn
        10: .line 412
      StackMap locals:
      StackMap stack: java.security.GeneralSecurityException
            astore 5 /* e */
        start local 5 // java.security.GeneralSecurityException e
        11: .line 413
            new java.security.SignatureException
            dup
            ldc "Could not verify signature"
            aload 5 /* e */
            invokespecial java.security.SignatureException.<init>:(Ljava/lang/String;Ljava/lang/Throwable;)V
            athrow
        end local 5 // java.security.GeneralSecurityException e
        end local 4 // byte[] encodedParams
        end local 3 // java.security.spec.ECParameterSpec params
        end local 2 // byte[] w
        end local 1 // byte[] signature
        end local 0 // sun.security.ec.ECDSASignature this
      LocalVariableTable:
        Start  End  Slot           Name  Signature
            0   12     0           this  Lsun/security/ec/ECDSASignature;
            0   12     1      signature  [B
            4    5     2              w  [B
            6   12     2              w  [B
            1   12     3         params  Ljava/security/spec/ECParameterSpec;
            2   12     4  encodedParams  [B
           11   12     5              e  Ljava/security/GeneralSecurityException;
      Exception table:
        from    to  target  type
           6     9      10  Class java.security.GeneralSecurityException
    Exceptions:
      throws java.security.SignatureException
    MethodParameters:
           Name  Flags
      signature  

  protected void engineSetParameter(java.lang.String, java.lang.Object);
    descriptor: (Ljava/lang/String;Ljava/lang/Object;)V
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=3, locals=3, args_size=3
        start local 0 // sun.security.ec.ECDSASignature this
        start local 1 // java.lang.String param
        start local 2 // java.lang.Object value
         0: .line 422
            new java.lang.UnsupportedOperationException
            dup
            ldc "setParameter() not supported"
            invokespecial java.lang.UnsupportedOperationException.<init>:(Ljava/lang/String;)V
            athrow
        end local 2 // java.lang.Object value
        end local 1 // java.lang.String param
        end local 0 // sun.security.ec.ECDSASignature this
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0    1     0   this  Lsun/security/ec/ECDSASignature;
            0    1     1  param  Ljava/lang/String;
            0    1     2  value  Ljava/lang/Object;
    Exceptions:
      throws java.security.InvalidParameterException
    RuntimeVisibleAnnotations: 
      java.lang.Deprecated()
    MethodParameters:
       Name  Flags
      param  
      value  

  protected void engineSetParameter(java.security.spec.AlgorithmParameterSpec);
    descriptor: (Ljava/security/spec/AlgorithmParameterSpec;)V
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=3, locals=3, args_size=2
        start local 0 // sun.security.ec.ECDSASignature this
        start local 1 // java.security.spec.AlgorithmParameterSpec params
         0: .line 428
            aload 1 /* params */
            ifnull 2
            aload 1 /* params */
            instanceof java.security.spec.ECParameterSpec
            ifne 2
         1: .line 429
            new java.security.InvalidAlgorithmParameterException
            dup
            ldc "No parameter accepted"
            invokespecial java.security.InvalidAlgorithmParameterException.<init>:(Ljava/lang/String;)V
            athrow
         2: .line 431
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield sun.security.ec.ECDSASignature.privateKey:Ljava/security/interfaces/ECPrivateKey;
            ifnonnull 3
            aload 0 /* this */
            getfield sun.security.ec.ECDSASignature.publicKey:Ljava/security/interfaces/ECPublicKey;
            goto 4
      StackMap locals:
      StackMap stack:
         3: aload 0 /* this */
            getfield sun.security.ec.ECDSASignature.privateKey:Ljava/security/interfaces/ECPrivateKey;
      StackMap locals:
      StackMap stack: java.security.interfaces.ECKey
         4: astore 2 /* key */
        start local 2 // java.security.interfaces.ECKey key
         5: .line 432
            aload 2 /* key */
            ifnull 9
            aload 1 /* params */
            checkcast java.security.spec.ECParameterSpec
            aload 2 /* key */
            invokeinterface java.security.interfaces.ECKey.getParams:()Ljava/security/spec/ECParameterSpec;
            invokestatic sun.security.ec.ECDSASignature.isCompatible:(Ljava/security/spec/ECParameterSpec;Ljava/security/spec/ECParameterSpec;)Z
            ifne 9
         6: .line 433
            new java.security.InvalidAlgorithmParameterException
            dup
         7: .line 434
            ldc "Signature params does not match key params"
         8: .line 433
            invokespecial java.security.InvalidAlgorithmParameterException.<init>:(Ljava/lang/String;)V
            athrow
         9: .line 437
      StackMap locals: java.security.interfaces.ECKey
      StackMap stack:
            aload 0 /* this */
            aload 1 /* params */
            checkcast java.security.spec.ECParameterSpec
            putfield sun.security.ec.ECDSASignature.sigParams:Ljava/security/spec/ECParameterSpec;
        10: .line 438
            return
        end local 2 // java.security.interfaces.ECKey key
        end local 1 // java.security.spec.AlgorithmParameterSpec params
        end local 0 // sun.security.ec.ECDSASignature this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0   11     0    this  Lsun/security/ec/ECDSASignature;
            0   11     1  params  Ljava/security/spec/AlgorithmParameterSpec;
            5   11     2     key  Ljava/security/interfaces/ECKey;
    Exceptions:
      throws java.security.InvalidAlgorithmParameterException
    MethodParameters:
        Name  Flags
      params  

  protected java.lang.Object engineGetParameter(java.lang.String);
    descriptor: (Ljava/lang/String;)Ljava/lang/Object;
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=3, locals=2, args_size=2
        start local 0 // sun.security.ec.ECDSASignature this
        start local 1 // java.lang.String param
         0: .line 445
            new java.lang.UnsupportedOperationException
            dup
            ldc "getParameter() not supported"
            invokespecial java.lang.UnsupportedOperationException.<init>:(Ljava/lang/String;)V
            athrow
        end local 1 // java.lang.String param
        end local 0 // sun.security.ec.ECDSASignature this
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0    1     0   this  Lsun/security/ec/ECDSASignature;
            0    1     1  param  Ljava/lang/String;
    Exceptions:
      throws java.security.InvalidParameterException
    RuntimeVisibleAnnotations: 
      java.lang.Deprecated()
    MethodParameters:
       Name  Flags
      param  

  protected java.security.AlgorithmParameters engineGetParameters();
    descriptor: ()Ljava/security/AlgorithmParameters;
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=4, locals=2, args_size=1
        start local 0 // sun.security.ec.ECDSASignature this
         0: .line 450
            aload 0 /* this */
            getfield sun.security.ec.ECDSASignature.sigParams:Ljava/security/spec/ECParameterSpec;
            ifnonnull 2
         1: .line 451
            aconst_null
            areturn
         2: .line 454
      StackMap locals:
      StackMap stack:
            ldc "EC"
            invokestatic java.security.AlgorithmParameters.getInstance:(Ljava/lang/String;)Ljava/security/AlgorithmParameters;
            astore 1 /* ap */
        start local 1 // java.security.AlgorithmParameters ap
         3: .line 455
            aload 1 /* ap */
            aload 0 /* this */
            getfield sun.security.ec.ECDSASignature.sigParams:Ljava/security/spec/ECParameterSpec;
            invokevirtual java.security.AlgorithmParameters.init:(Ljava/security/spec/AlgorithmParameterSpec;)V
         4: .line 456
            aload 1 /* ap */
         5: areturn
        end local 1 // java.security.AlgorithmParameters ap
         6: .line 457
      StackMap locals:
      StackMap stack: java.lang.Exception
            astore 1 /* e */
        start local 1 // java.lang.Exception e
         7: .line 459
            new java.security.ProviderException
            dup
            ldc "Error retrieving EC parameters"
            aload 1 /* e */
            invokespecial java.security.ProviderException.<init>:(Ljava/lang/String;Ljava/lang/Throwable;)V
            athrow
        end local 1 // java.lang.Exception e
        end local 0 // sun.security.ec.ECDSASignature this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    8     0  this  Lsun/security/ec/ECDSASignature;
            3    6     1    ap  Ljava/security/AlgorithmParameters;
            7    8     1     e  Ljava/lang/Exception;
      Exception table:
        from    to  target  type
           2     5       6  Class java.lang.Exception

  private static native byte[] signDigest(byte[], byte[], byte[], byte[], int);
    descriptor: ([B[B[B[BI)[B
    flags: (0x010a) ACC_PRIVATE, ACC_STATIC, ACC_NATIVE
    Exceptions:
      throws java.security.GeneralSecurityException
    MethodParameters:
               Name  Flags
      digest         
      s              
      encodedParams  
      seed           
      timing         

  private static native boolean verifySignedDigest(byte[], byte[], byte[], byte[]);
    descriptor: ([B[B[B[B)Z
    flags: (0x010a) ACC_PRIVATE, ACC_STATIC, ACC_NATIVE
    Exceptions:
      throws java.security.GeneralSecurityException
    MethodParameters:
               Name  Flags
      signature      
      digest         
      w              
      encodedParams  
}
SourceFile: "ECDSASignature.java"
NestMembers:
  sun.security.ec.ECDSASignature$Raw  sun.security.ec.ECDSASignature$SHA1  sun.security.ec.ECDSASignature$SHA224  sun.security.ec.ECDSASignature$SHA256  sun.security.ec.ECDSASignature$SHA384  sun.security.ec.ECDSASignature$SHA512
InnerClasses:
  public Seed = sun.security.ec.ECDSAOperations$Seed of sun.security.ec.ECDSAOperations
  public final Raw = sun.security.ec.ECDSASignature$Raw of sun.security.ec.ECDSASignature
  public final SHA1 = sun.security.ec.ECDSASignature$SHA1 of sun.security.ec.ECDSASignature
  public final SHA224 = sun.security.ec.ECDSASignature$SHA224 of sun.security.ec.ECDSASignature
  public final SHA256 = sun.security.ec.ECDSASignature$SHA256 of sun.security.ec.ECDSASignature
  public final SHA384 = sun.security.ec.ECDSASignature$SHA384 of sun.security.ec.ECDSASignature
  public final SHA512 = sun.security.ec.ECDSASignature$SHA512 of sun.security.ec.ECDSASignature
  IntermediateValueException = sun.security.ec.ECOperations$IntermediateValueException of sun.security.ec.ECOperations