http://xml.apache.org/commons/components/external/: xml-commons provides an Apache-hosted set of DOM, SAX, and JAXP interfaces for use in other xml-based projects. Our hope is that we can standardize on both a common version and packaging scheme for these critical XML standards interfaces to make the lives of both our developers and users easier. The External Components portion of xml-commons contains interfaces that are defined by external standards organizations. For DOM, that's the W3C; for SAX it's David Megginson and sax.sourceforge.net; for JAXP it's Sun. 
class javax.xml.xpath.SecuritySupport$8 implements java.security.PrivilegedAction
  minor version: 0
  major version: 59
  flags: flags: (0x0020) ACC_SUPER
  this_class: javax.xml.xpath.SecuritySupport$8
  super_class: java.lang.Object
{
  private final java.io.File val$f;
    descriptor: Ljava/io/File;
    flags: (0x1012) ACC_PRIVATE, ACC_FINAL, ACC_SYNTHETIC

  void <init>(java.io.File);
    descriptor: (Ljava/io/File;)V
    flags: (0x0000) 
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // javax.xml.xpath.SecuritySupport$8 this
         0: .line 155
            aload 0 /* this */
            aload 1
            putfield javax.xml.xpath.SecuritySupport$8.val$f:Ljava/io/File;
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
            return
        end local 0 // javax.xml.xpath.SecuritySupport$8 this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Ljavax/xml/xpath/SecuritySupport$8;
    MethodParameters:
       Name  Flags
      val$f  final

  public java.lang.Object run();
    descriptor: ()Ljava/lang/Object;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // javax.xml.xpath.SecuritySupport$8 this
         0: .line 157
            aload 0 /* this */
            getfield javax.xml.xpath.SecuritySupport$8.val$f:Ljava/io/File;
            invokevirtual java.io.File.exists:()Z
            ifeq 1
            getstatic java.lang.Boolean.TRUE:Ljava/lang/Boolean;
            goto 2
      StackMap locals:
      StackMap stack:
         1: getstatic java.lang.Boolean.FALSE:Ljava/lang/Boolean;
      StackMap locals:
      StackMap stack: java.lang.Boolean
         2: areturn
        end local 0 // javax.xml.xpath.SecuritySupport$8 this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    3     0  this  Ljavax/xml/xpath/SecuritySupport$8;
}
SourceFile: "SecuritySupport.java"
EnclosingMethod: javax.xml.xpath.SecuritySupport.doesFileExist:(Ljava/io/File;)Z
NestHost: javax.xml.xpath.SecuritySupport
InnerClasses:
  javax.xml.xpath.SecuritySupport$8