As part of the modular image work being done in jigsaw/m2, user-editable configuration files are being moved from ${java.home}/lib to ${java.home}/conf, accessibility.properties is one of these.

During the move it was noticed that accessibility.properties is being referenced/named directly from code in OpenJDK. This should be looked at, with the intention of moving the reference to closed src, since accessibility.properties is Oracle specific. See:
  
 http://hg.openjdk.java.net/jdk9/jdk9/jdk/file/tip/src/java.desktop/share/classes/java/awt/Toolkit.java Line:716

    ...
    try {
        File propsFile = new File(
        System.getProperty("user.home") +
              sep + ".accessibility.properties");
        FileInputStream in =
              new FileInputStream(propsFile);
        ....