https://github.com/Microsoft/mssql-jdbc: Microsoft JDBC Driver for SQL Server. (Microsoft Corporation) 
public final class com.microsoft.sqlserver.jdbc.SQLServerXADataSource extends com.microsoft.sqlserver.jdbc.SQLServerConnectionPoolDataSource implements javax.sql.XADataSource
  minor version: 0
  major version: 59
  flags: flags: (0x0031) ACC_PUBLIC, ACC_FINAL, ACC_SUPER
  this_class: com.microsoft.sqlserver.jdbc.SQLServerXADataSource
  super_class: com.microsoft.sqlserver.jdbc.SQLServerConnectionPoolDataSource
{
  static java.util.logging.Logger xaLogger;
    descriptor: Ljava/util/logging/Logger;
    flags: (0x0008) ACC_STATIC

  static void <clinit>();
    descriptor: ()V
    flags: (0x0008) ACC_STATIC
    Code:
      stack=1, locals=0, args_size=0
         0: .line 45
            ldc "com.microsoft.sqlserver.jdbc.internals.XA"
            invokestatic java.util.logging.Logger.getLogger:(Ljava/lang/String;)Ljava/util/logging/Logger;
            putstatic com.microsoft.sqlserver.jdbc.SQLServerXADataSource.xaLogger:Ljava/util/logging/Logger;
            return
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  public void <init>();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.microsoft.sqlserver.jdbc.SQLServerXADataSource this
         0: .line 43
            aload 0 /* this */
            invokespecial com.microsoft.sqlserver.jdbc.SQLServerConnectionPoolDataSource.<init>:()V
            return
        end local 0 // com.microsoft.sqlserver.jdbc.SQLServerXADataSource this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/microsoft/sqlserver/jdbc/SQLServerXADataSource;

  public javax.sql.XAConnection getXAConnection(java.lang.String, java.lang.String);
    descriptor: (Ljava/lang/String;Ljava/lang/String;)Ljavax/sql/XAConnection;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=7, locals=5, args_size=3
        start local 0 // com.microsoft.sqlserver.jdbc.SQLServerXADataSource this
        start local 1 // java.lang.String user
        start local 2 // java.lang.String password
         0: .line 57
            getstatic com.microsoft.sqlserver.jdbc.SQLServerXADataSource.loggerExternal:Ljava/util/logging/Logger;
            getstatic java.util.logging.Level.FINER:Ljava/util/logging/Level;
            invokevirtual java.util.logging.Logger.isLoggable:(Ljava/util/logging/Level;)Z
            ifeq 4
         1: .line 58
            getstatic com.microsoft.sqlserver.jdbc.SQLServerXADataSource.loggerExternal:Ljava/util/logging/Logger;
            aload 0 /* this */
            invokevirtual com.microsoft.sqlserver.jdbc.SQLServerXADataSource.getClassNameLogging:()Ljava/lang/String;
            ldc "getXAConnection"
         2: .line 59
            iconst_2
            anewarray java.lang.Object
            dup
            iconst_0
            aload 1 /* user */
            aastore
            dup
            iconst_1
            ldc "Password not traced"
            aastore
         3: .line 58
            invokevirtual java.util.logging.Logger.entering:(Ljava/lang/String;Ljava/lang/String;[Ljava/lang/Object;)V
         4: .line 60
      StackMap locals:
      StackMap stack:
            new com.microsoft.sqlserver.jdbc.SQLServerXAConnection
            dup
            aload 0 /* this */
            aload 1 /* user */
            aload 2 /* password */
            invokespecial com.microsoft.sqlserver.jdbc.SQLServerXAConnection.<init>:(Lcom/microsoft/sqlserver/jdbc/SQLServerDataSource;Ljava/lang/String;Ljava/lang/String;)V
            astore 3 /* pooledXAConnection */
        start local 3 // com.microsoft.sqlserver.jdbc.SQLServerXAConnection pooledXAConnection
         5: .line 62
            getstatic com.microsoft.sqlserver.jdbc.SQLServerXADataSource.xaLogger:Ljava/util/logging/Logger;
            getstatic java.util.logging.Level.FINER:Ljava/util/logging/Level;
            invokevirtual java.util.logging.Logger.isLoggable:(Ljava/util/logging/Level;)Z
            ifeq 7
         6: .line 63
            getstatic com.microsoft.sqlserver.jdbc.SQLServerXADataSource.xaLogger:Ljava/util/logging/Logger;
            new java.lang.StringBuilder
            dup
            aload 0 /* this */
            invokevirtual com.microsoft.sqlserver.jdbc.SQLServerXADataSource.toString:()Ljava/lang/String;
            invokestatic java.lang.String.valueOf:(Ljava/lang/Object;)Ljava/lang/String;
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            ldc " user:"
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            aload 1 /* user */
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            aload 3 /* pooledXAConnection */
            invokevirtual com.microsoft.sqlserver.jdbc.SQLServerXAConnection.toString:()Ljava/lang/String;
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            invokevirtual java.util.logging.Logger.finer:(Ljava/lang/String;)V
         7: .line 70
      StackMap locals: com.microsoft.sqlserver.jdbc.SQLServerXAConnection
      StackMap stack:
            getstatic com.microsoft.sqlserver.jdbc.SQLServerXADataSource.xaLogger:Ljava/util/logging/Logger;
            getstatic java.util.logging.Level.FINER:Ljava/util/logging/Level;
            invokevirtual java.util.logging.Logger.isLoggable:(Ljava/util/logging/Level;)Z
            ifeq 9
         8: .line 71
            getstatic com.microsoft.sqlserver.jdbc.SQLServerXADataSource.xaLogger:Ljava/util/logging/Logger;
            new java.lang.StringBuilder
            dup
            aload 0 /* this */
            invokevirtual com.microsoft.sqlserver.jdbc.SQLServerXADataSource.toString:()Ljava/lang/String;
            invokestatic java.lang.String.valueOf:(Ljava/lang/Object;)Ljava/lang/String;
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            ldc " Start get physical connection."
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            invokevirtual java.util.logging.Logger.finer:(Ljava/lang/String;)V
         9: .line 72
      StackMap locals:
      StackMap stack:
            aload 3 /* pooledXAConnection */
            invokevirtual com.microsoft.sqlserver.jdbc.SQLServerXAConnection.getPhysicalConnection:()Lcom/microsoft/sqlserver/jdbc/SQLServerConnection;
            astore 4 /* physicalConnection */
        start local 4 // com.microsoft.sqlserver.jdbc.SQLServerConnection physicalConnection
        10: .line 73
            getstatic com.microsoft.sqlserver.jdbc.SQLServerXADataSource.xaLogger:Ljava/util/logging/Logger;
            getstatic java.util.logging.Level.FINE:Ljava/util/logging/Level;
            invokevirtual java.util.logging.Logger.isLoggable:(Ljava/util/logging/Level;)Z
            ifeq 12
        11: .line 74
            getstatic com.microsoft.sqlserver.jdbc.SQLServerXADataSource.xaLogger:Ljava/util/logging/Logger;
            new java.lang.StringBuilder
            dup
            aload 0 /* this */
            invokevirtual com.microsoft.sqlserver.jdbc.SQLServerXADataSource.toString:()Ljava/lang/String;
            invokestatic java.lang.String.valueOf:(Ljava/lang/Object;)Ljava/lang/String;
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            ldc " End get physical connection, "
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            aload 4 /* physicalConnection */
            invokevirtual com.microsoft.sqlserver.jdbc.SQLServerConnection.toString:()Ljava/lang/String;
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            invokevirtual java.util.logging.Logger.fine:(Ljava/lang/String;)V
        12: .line 75
      StackMap locals: com.microsoft.sqlserver.jdbc.SQLServerConnection
      StackMap stack:
            getstatic com.microsoft.sqlserver.jdbc.SQLServerXADataSource.loggerExternal:Ljava/util/logging/Logger;
            getstatic java.util.logging.Level.FINER:Ljava/util/logging/Level;
            invokevirtual java.util.logging.Logger.isLoggable:(Ljava/util/logging/Level;)Z
            ifeq 14
        13: .line 76
            getstatic com.microsoft.sqlserver.jdbc.SQLServerXADataSource.loggerExternal:Ljava/util/logging/Logger;
            aload 0 /* this */
            invokevirtual com.microsoft.sqlserver.jdbc.SQLServerXADataSource.getClassNameLogging:()Ljava/lang/String;
            ldc "getXAConnection"
            aload 3 /* pooledXAConnection */
            invokevirtual java.util.logging.Logger.exiting:(Ljava/lang/String;Ljava/lang/String;Ljava/lang/Object;)V
        14: .line 77
      StackMap locals:
      StackMap stack:
            aload 3 /* pooledXAConnection */
            areturn
        end local 4 // com.microsoft.sqlserver.jdbc.SQLServerConnection physicalConnection
        end local 3 // com.microsoft.sqlserver.jdbc.SQLServerXAConnection pooledXAConnection
        end local 2 // java.lang.String password
        end local 1 // java.lang.String user
        end local 0 // com.microsoft.sqlserver.jdbc.SQLServerXADataSource this
      LocalVariableTable:
        Start  End  Slot                Name  Signature
            0   15     0                this  Lcom/microsoft/sqlserver/jdbc/SQLServerXADataSource;
            0   15     1                user  Ljava/lang/String;
            0   15     2            password  Ljava/lang/String;
            5   15     3  pooledXAConnection  Lcom/microsoft/sqlserver/jdbc/SQLServerXAConnection;
           10   15     4  physicalConnection  Lcom/microsoft/sqlserver/jdbc/SQLServerConnection;
    Exceptions:
      throws java.sql.SQLException
    MethodParameters:
          Name  Flags
      user      
      password  

  public javax.sql.XAConnection getXAConnection();
    descriptor: ()Ljavax/sql/XAConnection;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=1, args_size=1
        start local 0 // com.microsoft.sqlserver.jdbc.SQLServerXADataSource this
         0: .line 90
            getstatic com.microsoft.sqlserver.jdbc.SQLServerXADataSource.loggerExternal:Ljava/util/logging/Logger;
            getstatic java.util.logging.Level.FINER:Ljava/util/logging/Level;
            invokevirtual java.util.logging.Logger.isLoggable:(Ljava/util/logging/Level;)Z
            ifeq 2
         1: .line 91
            getstatic com.microsoft.sqlserver.jdbc.SQLServerXADataSource.loggerExternal:Ljava/util/logging/Logger;
            aload 0 /* this */
            invokevirtual com.microsoft.sqlserver.jdbc.SQLServerXADataSource.getClassNameLogging:()Ljava/lang/String;
            ldc "getXAConnection"
            invokevirtual java.util.logging.Logger.entering:(Ljava/lang/String;Ljava/lang/String;)V
         2: .line 92
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            aload 0 /* this */
            invokevirtual com.microsoft.sqlserver.jdbc.SQLServerXADataSource.getUser:()Ljava/lang/String;
            aload 0 /* this */
            invokevirtual com.microsoft.sqlserver.jdbc.SQLServerXADataSource.getPassword:()Ljava/lang/String;
            invokevirtual com.microsoft.sqlserver.jdbc.SQLServerXADataSource.getXAConnection:(Ljava/lang/String;Ljava/lang/String;)Ljavax/sql/XAConnection;
            areturn
        end local 0 // com.microsoft.sqlserver.jdbc.SQLServerXADataSource this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    3     0  this  Lcom/microsoft/sqlserver/jdbc/SQLServerXADataSource;
    Exceptions:
      throws java.sql.SQLException

  public javax.naming.Reference getReference();
    descriptor: ()Ljavax/naming/Reference;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=4, locals=2, args_size=1
        start local 0 // com.microsoft.sqlserver.jdbc.SQLServerXADataSource this
         0: .line 99
            getstatic com.microsoft.sqlserver.jdbc.SQLServerXADataSource.loggerExternal:Ljava/util/logging/Logger;
            getstatic java.util.logging.Level.FINER:Ljava/util/logging/Level;
            invokevirtual java.util.logging.Logger.isLoggable:(Ljava/util/logging/Level;)Z
            ifeq 2
         1: .line 100
            getstatic com.microsoft.sqlserver.jdbc.SQLServerXADataSource.loggerExternal:Ljava/util/logging/Logger;
            aload 0 /* this */
            invokevirtual com.microsoft.sqlserver.jdbc.SQLServerXADataSource.getClassNameLogging:()Ljava/lang/String;
            ldc "getReference"
            invokevirtual java.util.logging.Logger.entering:(Ljava/lang/String;Ljava/lang/String;)V
         2: .line 101
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            ldc "com.microsoft.sqlserver.jdbc.SQLServerXADataSource"
            invokevirtual com.microsoft.sqlserver.jdbc.SQLServerXADataSource.getReferenceInternal:(Ljava/lang/String;)Ljavax/naming/Reference;
            astore 1 /* ref */
        start local 1 // javax.naming.Reference ref
         3: .line 102
            getstatic com.microsoft.sqlserver.jdbc.SQLServerXADataSource.loggerExternal:Ljava/util/logging/Logger;
            getstatic java.util.logging.Level.FINER:Ljava/util/logging/Level;
            invokevirtual java.util.logging.Logger.isLoggable:(Ljava/util/logging/Level;)Z
            ifeq 5
         4: .line 103
            getstatic com.microsoft.sqlserver.jdbc.SQLServerXADataSource.loggerExternal:Ljava/util/logging/Logger;
            aload 0 /* this */
            invokevirtual com.microsoft.sqlserver.jdbc.SQLServerXADataSource.getClassNameLogging:()Ljava/lang/String;
            ldc "getReference"
            aload 1 /* ref */
            invokevirtual java.util.logging.Logger.exiting:(Ljava/lang/String;Ljava/lang/String;Ljava/lang/Object;)V
         5: .line 104
      StackMap locals: javax.naming.Reference
      StackMap stack:
            aload 1 /* ref */
            areturn
        end local 1 // javax.naming.Reference ref
        end local 0 // com.microsoft.sqlserver.jdbc.SQLServerXADataSource this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    6     0  this  Lcom/microsoft/sqlserver/jdbc/SQLServerXADataSource;
            3    6     1   ref  Ljavax/naming/Reference;

  private java.lang.Object writeReplace();
    descriptor: ()Ljava/lang/Object;
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=3, locals=1, args_size=1
        start local 0 // com.microsoft.sqlserver.jdbc.SQLServerXADataSource this
         0: .line 108
            new com.microsoft.sqlserver.jdbc.SQLServerXADataSource$SerializationProxy
            dup
            aload 0 /* this */
            invokespecial com.microsoft.sqlserver.jdbc.SQLServerXADataSource$SerializationProxy.<init>:(Lcom/microsoft/sqlserver/jdbc/SQLServerXADataSource;)V
            areturn
        end local 0 // com.microsoft.sqlserver.jdbc.SQLServerXADataSource this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/microsoft/sqlserver/jdbc/SQLServerXADataSource;
    Exceptions:
      throws java.io.ObjectStreamException

  private void readObject(java.io.ObjectInputStream);
    descriptor: (Ljava/io/ObjectInputStream;)V
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=3, locals=2, args_size=2
        start local 0 // com.microsoft.sqlserver.jdbc.SQLServerXADataSource this
        start local 1 // java.io.ObjectInputStream stream
         0: .line 114
            new java.io.InvalidObjectException
            dup
            ldc ""
            invokespecial java.io.InvalidObjectException.<init>:(Ljava/lang/String;)V
            athrow
        end local 1 // java.io.ObjectInputStream stream
        end local 0 // com.microsoft.sqlserver.jdbc.SQLServerXADataSource this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    1     0    this  Lcom/microsoft/sqlserver/jdbc/SQLServerXADataSource;
            0    1     1  stream  Ljava/io/ObjectInputStream;
    Exceptions:
      throws java.io.InvalidObjectException
    MethodParameters:
        Name  Flags
      stream  
}
SourceFile: "SQLServerXADataSource.java"
NestMembers:
  com.microsoft.sqlserver.jdbc.SQLServerXADataSource$SerializationProxy
InnerClasses:
  private SerializationProxy = com.microsoft.sqlserver.jdbc.SQLServerXADataSource$SerializationProxy of com.microsoft.sqlserver.jdbc.SQLServerXADataSource