http://www.jooq.org/jooq-meta: jOOQ effectively combines complex SQL, typesafety, source code generation, active records, stored procedures, advanced data types, and Java in a fluent, intuitive DSL. 
class org.jooq.meta.AbstractDatabase$1$SQLPerformanceWarning extends java.lang.Exception
  minor version: 0
  major version: 59
  flags: flags: (0x0020) ACC_SUPER
  this_class: org.jooq.meta.AbstractDatabase$1$SQLPerformanceWarning
  super_class: java.lang.Exception
{
  final org.jooq.meta.AbstractDatabase$1 this$1;
    descriptor: Lorg/jooq/meta/AbstractDatabase$1;
    flags: (0x1010) ACC_FINAL, ACC_SYNTHETIC

  void <init>(org.jooq.meta.AbstractDatabase$1);
    descriptor: (Lorg/jooq/meta/AbstractDatabase$1;)V
    flags: (0x0000) 
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // org.jooq.meta.AbstractDatabase$1$SQLPerformanceWarning this
         0: .line 331
            aload 0 /* this */
            aload 1
            putfield org.jooq.meta.AbstractDatabase$1$SQLPerformanceWarning.this$1:Lorg/jooq/meta/AbstractDatabase$1;
            aload 0 /* this */
            invokespecial java.lang.Exception.<init>:()V
            return
        end local 0 // org.jooq.meta.AbstractDatabase$1$SQLPerformanceWarning this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/jooq/meta/AbstractDatabase$1$SQLPerformanceWarning;
    MethodParameters:
        Name  Flags
      this$0  final
}
SourceFile: "AbstractDatabase.java"
NestHost: org.jooq.meta.AbstractDatabase
InnerClasses:
  org.jooq.meta.AbstractDatabase$1
  SQLPerformanceWarning = org.jooq.meta.AbstractDatabase$1$SQLPerformanceWarning of org.jooq.meta.AbstractDatabase$1