15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package java.security;
  27 
  28 import java.util.*;
  29 import java.util.concurrent.ConcurrentHashMap;
  30 import java.io.*;
  31 import java.net.URL;
  32 
  33 import jdk.internal.event.EventHelper;
  34 import jdk.internal.event.SecurityPropertyModificationEvent;
  35 import jdk.internal.misc.SharedSecrets;
  36 import jdk.internal.util.StaticProperty;
  37 import sun.security.util.Debug;
  38 import sun.security.util.PropertyExpander;
  39 
  40 import sun.security.jca.*;
  41 
  42 /**
  43  * <p>This class centralizes all security properties and common security
  44  * methods. One of its primary uses is to manage providers.
  45  *
  46  * <p>The default values of security properties are read from an
  47  * implementation-specific location, which is typically the properties file
  48  * {@code conf/security/java.security} in the Java installation directory.
  49  *
  50  * @author Benjamin Renaud
  51  * @since 1.1
  52  */
  53 
  54 public final class Security {
  55 

  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package java.security;
  27 
  28 import java.util.*;
  29 import java.util.concurrent.ConcurrentHashMap;
  30 import java.io.*;
  31 import java.net.URL;
  32 
  33 import jdk.internal.event.EventHelper;
  34 import jdk.internal.event.SecurityPropertyModificationEvent;
  35 import jdk.internal.access.SharedSecrets;
  36 import jdk.internal.util.StaticProperty;
  37 import sun.security.util.Debug;
  38 import sun.security.util.PropertyExpander;
  39 
  40 import sun.security.jca.*;
  41 
  42 /**
  43  * <p>This class centralizes all security properties and common security
  44  * methods. One of its primary uses is to manage providers.
  45  *
  46  * <p>The default values of security properties are read from an
  47  * implementation-specific location, which is typically the properties file
  48  * {@code conf/security/java.security} in the Java installation directory.
  49  *
  50  * @author Benjamin Renaud
  51  * @since 1.1
  52  */
  53 
  54 public final class Security {
  55