http://www.jboss.org/shrinkwrap-resolver-parent/shrinkwrap-resolver-impl-maven: Implementation for Resolving Dependencies from a Maven Backend (JBoss by Red Hat) 
public class org.jboss.shrinkwrap.resolver.impl.maven.internal.decrypt.MavenPlexusCipher implements org.sonatype.plexus.components.cipher.PlexusCipher
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: org.jboss.shrinkwrap.resolver.impl.maven.internal.decrypt.MavenPlexusCipher
  super_class: java.lang.Object
{
  private static final java.util.regex.Pattern ENCRYPTED_PATTERN_WITH_PRECEDING_STRING;
    descriptor: Ljava/util/regex/Pattern;
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL

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

  private final org.sonatype.plexus.components.cipher.PBECipher cipher;
    descriptor: Lorg/sonatype/plexus/components/cipher/PBECipher;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  static void <clinit>();
    descriptor: ()V
    flags: (0x0008) ACC_STATIC
    Code:
      stack=2, locals=0, args_size=0
         0: .line 37
            ldc "[^\\\\$]\\{(.*?[^\\\\])\\}.*"
            bipush 32
            invokestatic java.util.regex.Pattern.compile:(Ljava/lang/String;I)Ljava/util/regex/Pattern;
         1: .line 36
            putstatic org.jboss.shrinkwrap.resolver.impl.maven.internal.decrypt.MavenPlexusCipher.ENCRYPTED_PATTERN_WITH_PRECEDING_STRING:Ljava/util/regex/Pattern;
         2: .line 40
            ldc "^\\{(.*?[^\\\\])\\}.*"
            bipush 40
            invokestatic java.util.regex.Pattern.compile:(Ljava/lang/String;I)Ljava/util/regex/Pattern;
         3: .line 39
            putstatic org.jboss.shrinkwrap.resolver.impl.maven.internal.decrypt.MavenPlexusCipher.ENCRYPTED_PATTERN_WITHOUT_PRECEDING_STRING:Ljava/util/regex/Pattern;
         4: .line 40
            return
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  public void <init>();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=1, args_size=1
        start local 0 // org.jboss.shrinkwrap.resolver.impl.maven.internal.decrypt.MavenPlexusCipher this
         0: .line 44
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 46
            aload 0 /* this */
            new org.sonatype.plexus.components.cipher.PBECipher
            dup
            invokespecial org.sonatype.plexus.components.cipher.PBECipher.<init>:()V
            putfield org.jboss.shrinkwrap.resolver.impl.maven.internal.decrypt.MavenPlexusCipher.cipher:Lorg/sonatype/plexus/components/cipher/PBECipher;
         2: .line 47
            goto 5
      StackMap locals: org.jboss.shrinkwrap.resolver.impl.maven.internal.decrypt.MavenPlexusCipher
      StackMap stack: org.sonatype.plexus.components.cipher.PlexusCipherException
         3: pop
         4: .line 48
            new java.lang.IllegalStateException
            dup
            ldc "Unable to instantiate Cipher to decrypt Maven passwords"
            invokespecial java.lang.IllegalStateException.<init>:(Ljava/lang/String;)V
            athrow
         5: .line 50
      StackMap locals:
      StackMap stack:
            return
        end local 0 // org.jboss.shrinkwrap.resolver.impl.maven.internal.decrypt.MavenPlexusCipher this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    6     0  this  Lorg/jboss/shrinkwrap/resolver/impl/maven/internal/decrypt/MavenPlexusCipher;
      Exception table:
        from    to  target  type
           1     2       3  Class org.sonatype.plexus.components.cipher.PlexusCipherException
    Exceptions:
      throws java.lang.IllegalStateException

  public java.lang.String encrypt(java.lang.String, java.lang.String);
    descriptor: (Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=3, args_size=3
        start local 0 // org.jboss.shrinkwrap.resolver.impl.maven.internal.decrypt.MavenPlexusCipher this
        start local 1 // java.lang.String str
        start local 2 // java.lang.String passPhrase
         0: .line 54
            aload 1 /* str */
            ifnull 1
            aload 1 /* str */
            invokevirtual java.lang.String.length:()I
            iconst_1
            if_icmpge 2
         1: .line 55
      StackMap locals:
      StackMap stack:
            aload 1 /* str */
            areturn
         2: .line 58
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield org.jboss.shrinkwrap.resolver.impl.maven.internal.decrypt.MavenPlexusCipher.cipher:Lorg/sonatype/plexus/components/cipher/PBECipher;
            aload 1 /* str */
            aload 2 /* passPhrase */
            invokevirtual org.sonatype.plexus.components.cipher.PBECipher.encrypt64:(Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;
            areturn
        end local 2 // java.lang.String passPhrase
        end local 1 // java.lang.String str
        end local 0 // org.jboss.shrinkwrap.resolver.impl.maven.internal.decrypt.MavenPlexusCipher this
      LocalVariableTable:
        Start  End  Slot        Name  Signature
            0    3     0        this  Lorg/jboss/shrinkwrap/resolver/impl/maven/internal/decrypt/MavenPlexusCipher;
            0    3     1         str  Ljava/lang/String;
            0    3     2  passPhrase  Ljava/lang/String;
    Exceptions:
      throws org.sonatype.plexus.components.cipher.PlexusCipherException
    MethodParameters:
            Name  Flags
      str         final
      passPhrase  final

  public java.lang.String encryptAndDecorate(java.lang.String, java.lang.String);
    descriptor: (Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=4, locals=3, args_size=3
        start local 0 // org.jboss.shrinkwrap.resolver.impl.maven.internal.decrypt.MavenPlexusCipher this
        start local 1 // java.lang.String str
        start local 2 // java.lang.String passPhrase
         0: .line 63
            aload 0 /* this */
            aload 0 /* this */
            aload 1 /* str */
            aload 2 /* passPhrase */
            invokevirtual org.jboss.shrinkwrap.resolver.impl.maven.internal.decrypt.MavenPlexusCipher.encrypt:(Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;
            invokevirtual org.jboss.shrinkwrap.resolver.impl.maven.internal.decrypt.MavenPlexusCipher.decorate:(Ljava/lang/String;)Ljava/lang/String;
            areturn
        end local 2 // java.lang.String passPhrase
        end local 1 // java.lang.String str
        end local 0 // org.jboss.shrinkwrap.resolver.impl.maven.internal.decrypt.MavenPlexusCipher this
      LocalVariableTable:
        Start  End  Slot        Name  Signature
            0    1     0        this  Lorg/jboss/shrinkwrap/resolver/impl/maven/internal/decrypt/MavenPlexusCipher;
            0    1     1         str  Ljava/lang/String;
            0    1     2  passPhrase  Ljava/lang/String;
    Exceptions:
      throws org.sonatype.plexus.components.cipher.PlexusCipherException
    MethodParameters:
            Name  Flags
      str         final
      passPhrase  final

  public java.lang.String decrypt(java.lang.String, java.lang.String);
    descriptor: (Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=3, args_size=3
        start local 0 // org.jboss.shrinkwrap.resolver.impl.maven.internal.decrypt.MavenPlexusCipher this
        start local 1 // java.lang.String str
        start local 2 // java.lang.String passPhrase
         0: .line 68
            aload 1 /* str */
            ifnull 1
            aload 1 /* str */
            invokevirtual java.lang.String.length:()I
            iconst_1
            if_icmpge 2
         1: .line 69
      StackMap locals:
      StackMap stack:
            aload 1 /* str */
            areturn
         2: .line 72
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield org.jboss.shrinkwrap.resolver.impl.maven.internal.decrypt.MavenPlexusCipher.cipher:Lorg/sonatype/plexus/components/cipher/PBECipher;
            aload 1 /* str */
            aload 2 /* passPhrase */
            invokevirtual org.sonatype.plexus.components.cipher.PBECipher.decrypt64:(Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;
            areturn
        end local 2 // java.lang.String passPhrase
        end local 1 // java.lang.String str
        end local 0 // org.jboss.shrinkwrap.resolver.impl.maven.internal.decrypt.MavenPlexusCipher this
      LocalVariableTable:
        Start  End  Slot        Name  Signature
            0    3     0        this  Lorg/jboss/shrinkwrap/resolver/impl/maven/internal/decrypt/MavenPlexusCipher;
            0    3     1         str  Ljava/lang/String;
            0    3     2  passPhrase  Ljava/lang/String;
    Exceptions:
      throws org.sonatype.plexus.components.cipher.PlexusCipherException
    MethodParameters:
            Name  Flags
      str         final
      passPhrase  final

  public java.lang.String decryptDecorated(java.lang.String, java.lang.String);
    descriptor: (Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=3, args_size=3
        start local 0 // org.jboss.shrinkwrap.resolver.impl.maven.internal.decrypt.MavenPlexusCipher this
        start local 1 // java.lang.String str
        start local 2 // java.lang.String passPhrase
         0: .line 77
            aload 1 /* str */
            ifnull 1
            aload 1 /* str */
            invokevirtual java.lang.String.length:()I
            iconst_1
            if_icmpge 2
         1: .line 78
      StackMap locals:
      StackMap stack:
            aload 1 /* str */
            areturn
         2: .line 81
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            aload 1 /* str */
            invokevirtual org.jboss.shrinkwrap.resolver.impl.maven.internal.decrypt.MavenPlexusCipher.isEncryptedString:(Ljava/lang/String;)Z
            ifeq 4
         3: .line 82
            aload 0 /* this */
            aload 0 /* this */
            aload 1 /* str */
            invokevirtual org.jboss.shrinkwrap.resolver.impl.maven.internal.decrypt.MavenPlexusCipher.unDecorate:(Ljava/lang/String;)Ljava/lang/String;
            aload 2 /* passPhrase */
            invokevirtual org.jboss.shrinkwrap.resolver.impl.maven.internal.decrypt.MavenPlexusCipher.decrypt:(Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;
            areturn
         4: .line 85
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            aload 1 /* str */
            aload 2 /* passPhrase */
            invokevirtual org.jboss.shrinkwrap.resolver.impl.maven.internal.decrypt.MavenPlexusCipher.decrypt:(Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;
            areturn
        end local 2 // java.lang.String passPhrase
        end local 1 // java.lang.String str
        end local 0 // org.jboss.shrinkwrap.resolver.impl.maven.internal.decrypt.MavenPlexusCipher this
      LocalVariableTable:
        Start  End  Slot        Name  Signature
            0    5     0        this  Lorg/jboss/shrinkwrap/resolver/impl/maven/internal/decrypt/MavenPlexusCipher;
            0    5     1         str  Ljava/lang/String;
            0    5     2  passPhrase  Ljava/lang/String;
    Exceptions:
      throws org.sonatype.plexus.components.cipher.PlexusCipherException
    MethodParameters:
            Name  Flags
      str         final
      passPhrase  final

  public boolean isEncryptedString(java.lang.String);
    descriptor: (Ljava/lang/String;)Z
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=4, args_size=2
        start local 0 // org.jboss.shrinkwrap.resolver.impl.maven.internal.decrypt.MavenPlexusCipher this
        start local 1 // java.lang.String str
         0: .line 90
            aload 1 /* str */
            ifnull 1
            aload 1 /* str */
            invokevirtual java.lang.String.length:()I
            iconst_1
            if_icmpge 2
         1: .line 91
      StackMap locals:
      StackMap stack:
            iconst_0
            ireturn
         2: .line 94
      StackMap locals:
      StackMap stack:
            getstatic org.jboss.shrinkwrap.resolver.impl.maven.internal.decrypt.MavenPlexusCipher.ENCRYPTED_PATTERN_WITH_PRECEDING_STRING:Ljava/util/regex/Pattern;
            aload 1 /* str */
            invokevirtual java.util.regex.Pattern.matcher:(Ljava/lang/CharSequence;)Ljava/util/regex/Matcher;
            astore 2 /* matcherWithPrecString */
        start local 2 // java.util.regex.Matcher matcherWithPrecString
         3: .line 95
            getstatic org.jboss.shrinkwrap.resolver.impl.maven.internal.decrypt.MavenPlexusCipher.ENCRYPTED_PATTERN_WITHOUT_PRECEDING_STRING:Ljava/util/regex/Pattern;
            aload 1 /* str */
            invokevirtual java.util.regex.Pattern.matcher:(Ljava/lang/CharSequence;)Ljava/util/regex/Matcher;
            astore 3 /* matcherWithoutPrecString */
        start local 3 // java.util.regex.Matcher matcherWithoutPrecString
         4: .line 97
            aload 3 /* matcherWithoutPrecString */
            invokevirtual java.util.regex.Matcher.matches:()Z
            ifne 7
            aload 3 /* matcherWithoutPrecString */
            invokevirtual java.util.regex.Matcher.find:()Z
            ifne 7
         5: .line 98
            aload 2 /* matcherWithPrecString */
            invokevirtual java.util.regex.Matcher.matches:()Z
            ifne 7
            aload 2 /* matcherWithPrecString */
            invokevirtual java.util.regex.Matcher.find:()Z
            ifne 7
         6: .line 97
            iconst_0
            ireturn
      StackMap locals: java.util.regex.Matcher java.util.regex.Matcher
      StackMap stack:
         7: iconst_1
            ireturn
        end local 3 // java.util.regex.Matcher matcherWithoutPrecString
        end local 2 // java.util.regex.Matcher matcherWithPrecString
        end local 1 // java.lang.String str
        end local 0 // org.jboss.shrinkwrap.resolver.impl.maven.internal.decrypt.MavenPlexusCipher this
      LocalVariableTable:
        Start  End  Slot                      Name  Signature
            0    8     0                      this  Lorg/jboss/shrinkwrap/resolver/impl/maven/internal/decrypt/MavenPlexusCipher;
            0    8     1                       str  Ljava/lang/String;
            3    8     2     matcherWithPrecString  Ljava/util/regex/Matcher;
            4    8     3  matcherWithoutPrecString  Ljava/util/regex/Matcher;
    MethodParameters:
      Name  Flags
      str   final

  public java.lang.String unDecorate(java.lang.String);
    descriptor: (Ljava/lang/String;)Ljava/lang/String;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=5, locals=4, args_size=2
        start local 0 // org.jboss.shrinkwrap.resolver.impl.maven.internal.decrypt.MavenPlexusCipher this
        start local 1 // java.lang.String str
         0: .line 104
            getstatic org.jboss.shrinkwrap.resolver.impl.maven.internal.decrypt.MavenPlexusCipher.ENCRYPTED_PATTERN_WITHOUT_PRECEDING_STRING:Ljava/util/regex/Pattern;
            aload 1 /* str */
            invokevirtual java.util.regex.Pattern.matcher:(Ljava/lang/CharSequence;)Ljava/util/regex/Matcher;
            astore 2 /* matcherWithoutPrecString */
        start local 2 // java.util.regex.Matcher matcherWithoutPrecString
         1: .line 105
            aload 2 /* matcherWithoutPrecString */
            invokevirtual java.util.regex.Matcher.matches:()Z
            ifne 2
            aload 2 /* matcherWithoutPrecString */
            invokevirtual java.util.regex.Matcher.find:()Z
            ifeq 3
         2: .line 106
      StackMap locals: java.util.regex.Matcher
      StackMap stack:
            aload 2 /* matcherWithoutPrecString */
            iconst_1
            invokevirtual java.util.regex.Matcher.group:(I)Ljava/lang/String;
            areturn
         3: .line 109
      StackMap locals:
      StackMap stack:
            getstatic org.jboss.shrinkwrap.resolver.impl.maven.internal.decrypt.MavenPlexusCipher.ENCRYPTED_PATTERN_WITH_PRECEDING_STRING:Ljava/util/regex/Pattern;
            aload 1 /* str */
            invokevirtual java.util.regex.Pattern.matcher:(Ljava/lang/CharSequence;)Ljava/util/regex/Matcher;
            astore 3 /* matcherWithPrecString */
        start local 3 // java.util.regex.Matcher matcherWithPrecString
         4: .line 110
            aload 3 /* matcherWithPrecString */
            invokevirtual java.util.regex.Matcher.matches:()Z
            ifne 5
            aload 3 /* matcherWithPrecString */
            invokevirtual java.util.regex.Matcher.find:()Z
            ifeq 6
         5: .line 111
      StackMap locals: java.util.regex.Matcher
      StackMap stack:
            aload 3 /* matcherWithPrecString */
            iconst_1
            invokevirtual java.util.regex.Matcher.group:(I)Ljava/lang/String;
            areturn
         6: .line 113
      StackMap locals:
      StackMap stack:
            new java.lang.IllegalStateException
            dup
            new java.lang.StringBuilder
            dup
            ldc "Unable to undecorate decrypted string "
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            aload 1 /* str */
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            invokespecial java.lang.IllegalStateException.<init>:(Ljava/lang/String;)V
            athrow
        end local 3 // java.util.regex.Matcher matcherWithPrecString
        end local 2 // java.util.regex.Matcher matcherWithoutPrecString
        end local 1 // java.lang.String str
        end local 0 // org.jboss.shrinkwrap.resolver.impl.maven.internal.decrypt.MavenPlexusCipher this
      LocalVariableTable:
        Start  End  Slot                      Name  Signature
            0    7     0                      this  Lorg/jboss/shrinkwrap/resolver/impl/maven/internal/decrypt/MavenPlexusCipher;
            0    7     1                       str  Ljava/lang/String;
            1    7     2  matcherWithoutPrecString  Ljava/util/regex/Matcher;
            4    7     3     matcherWithPrecString  Ljava/util/regex/Matcher;
    Exceptions:
      throws org.sonatype.plexus.components.cipher.PlexusCipherException
    MethodParameters:
      Name  Flags
      str   final

  public java.lang.String decorate(java.lang.String);
    descriptor: (Ljava/lang/String;)Ljava/lang/String;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=2, args_size=2
        start local 0 // org.jboss.shrinkwrap.resolver.impl.maven.internal.decrypt.MavenPlexusCipher this
        start local 1 // java.lang.String str
         0: .line 119
            new java.lang.StringBuilder
            dup
            bipush 123
            invokestatic java.lang.String.valueOf:(C)Ljava/lang/String;
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            aload 1 /* str */
            ifnonnull 1
            ldc ""
            goto 2
      StackMap locals:
      StackMap stack: java.lang.StringBuilder
         1: aload 1 /* str */
      StackMap locals: org.jboss.shrinkwrap.resolver.impl.maven.internal.decrypt.MavenPlexusCipher java.lang.String
      StackMap stack: java.lang.StringBuilder java.lang.String
         2: invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            bipush 125
            invokevirtual java.lang.StringBuilder.append:(C)Ljava/lang/StringBuilder;
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            areturn
        end local 1 // java.lang.String str
        end local 0 // org.jboss.shrinkwrap.resolver.impl.maven.internal.decrypt.MavenPlexusCipher this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    3     0  this  Lorg/jboss/shrinkwrap/resolver/impl/maven/internal/decrypt/MavenPlexusCipher;
            0    3     1   str  Ljava/lang/String;
    MethodParameters:
      Name  Flags
      str   final
}
SourceFile: "MavenPlexusCipher.java"