Implement java.util.function.Supplier since we are using Java 8 for a while.

Author: kwwall

src/main/java/org/owasp/esapi/logging/appender/ClientInfoSupplier.java

@@ -15,8 +15,7 @@
 
 package org.owasp.esapi.logging.appender;
 
-// Uncomment and use once ESAPI supports Java 8 as the minimal baseline.
-// import java.util.function.Supplier;
+import java.util.function.Supplier;
 
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpSession;
@@ -28,7 +27,7 @@
  * Supplier which can provide a String representing the client-side connection
  * information.
  */
-public class ClientInfoSupplier // implements Supplier<String>
+public class ClientInfoSupplier implements Supplier<String>
 {
     /** Default Last Host string if the Authenticated user is null.*/
     private static final String DEFAULT_LAST_HOST = "#UNKNOWN_HOST#";

src/main/java/org/owasp/esapi/logging/appender/EventTypeLogSupplier.java

@@ -15,8 +15,7 @@
 
 package org.owasp.esapi.logging.appender;
 
-// Uncomment and use once ESAPI supports Java 8 as the minimal baseline.
-// import java.util.function.Supplier;
+import java.util.function.Supplier;
 
 import org.owasp.esapi.Logger;
 import org.owasp.esapi.Logger.EventType;
@@ -26,7 +25,7 @@
  * an EventType for logging
  *
  */
-public class EventTypeLogSupplier // implements Supplier<String>
+public class EventTypeLogSupplier implements Supplier<String>
 {
     /** EventType reference to supply log representation of. */
     private final EventType eventType;

src/main/java/org/owasp/esapi/logging/appender/ServerInfoSupplier.java

@@ -15,8 +15,7 @@
 
 package org.owasp.esapi.logging.appender;
 
-// Uncomment and use once ESAPI supports Java 8 as the minimal baseline.
-// import java.util.function.Supplier;
+import java.util.function.Supplier;
 
 import javax.servlet.http.HttpServletRequest;
 
@@ -26,7 +25,7 @@
  * Supplier which can provide a String representing the server-side connection
  * information.
  */
-public class ServerInfoSupplier     // implements Supplier<String>
+public class ServerInfoSupplier     implements Supplier<String>
 {
     /** Whether to log the server connection info. */
     private boolean logServerIP = true;

src/main/java/org/owasp/esapi/logging/appender/UserInfoSupplier.java

@@ -15,8 +15,7 @@
 
 package org.owasp.esapi.logging.appender;
 
-// Uncomment and use once ESAPI supports Java 8 as the minimal baseline.
-// import java.util.function.Supplier;
+import java.util.function.Supplier;
 
 import org.owasp.esapi.ESAPI;
 import org.owasp.esapi.User;
@@ -25,7 +24,7 @@
  * Supplier which can provide a String representing the client-side connection
  * information.
  */
-public class UserInfoSupplier   // implements Supplier<String>
+public class UserInfoSupplier   implements Supplier<String>
 {
     /** Default UserName string if the Authenticated user is null.*/
     private static final String DEFAULT_USERNAME = "#ANONYMOUS#";