http://hibernate.org: The core O/RM functionality as provided by Hibernate (Hibernate.org) 
class org.hibernate.dialect.Dialect$4 implements org.hibernate.exception.spi.ViolatedConstraintNameExtracter
  minor version: 0
  major version: 59
  flags: flags: (0x0020) ACC_SUPER
  this_class: org.hibernate.dialect.Dialect$4
  super_class: java.lang.Object
{
  void <init>();
    descriptor: ()V
    flags: (0x0000) 
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.hibernate.dialect.Dialect$4 this
         0: .line 1780
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
            return
        end local 0 // org.hibernate.dialect.Dialect$4 this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/hibernate/dialect/Dialect$4;

  public java.lang.String extractConstraintName(java.sql.SQLException);
    descriptor: (Ljava/sql/SQLException;)Ljava/lang/String;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=2, args_size=2
        start local 0 // org.hibernate.dialect.Dialect$4 this
        start local 1 // java.sql.SQLException sqle
         0: .line 1782
            aconst_null
            areturn
        end local 1 // java.sql.SQLException sqle
        end local 0 // org.hibernate.dialect.Dialect$4 this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/hibernate/dialect/Dialect$4;
            0    1     1  sqle  Ljava/sql/SQLException;
    MethodParameters:
      Name  Flags
      sqle  
}
SourceFile: "Dialect.java"
EnclosingMethod: org.hibernate.dialect.Dialect
NestHost: org.hibernate.dialect.Dialect
InnerClasses:
  org.hibernate.dialect.Dialect$4