Remove code specific to unsupported Java versions

Author: John Gardiner Myers

discovery/src/main/java/com/proofpoint/discovery/client/ServiceTypeImpl.java

@@ -39,8 +39,7 @@ public String value()
     @Override
     public String toString()
     {
-        var isJava11 = System.getProperty("java.version").startsWith("11.");
-        return String.format("@%s(%s\"%s\")", ServiceType.class.getName(), isJava11 ? "value=" : "", value.replaceAll("([\\\\\"])", "\\\\$1"));
+        return String.format("@%s(%s\"%s\")", ServiceType.class.getName(), "", value.replaceAll("([\\\\\"])", "\\\\$1"));
     }
 
     @Override

http-client/src/main/java/com/proofpoint/http/client/ServiceTypeImpl.java

@@ -39,8 +39,7 @@ public String value()
     @Override
     public String toString()
     {
-        var isJava11 = System.getProperty("java.version").startsWith("11.");
-        return String.format("@%s(%s\"%s\")", ServiceType.class.getName(), isJava11 ? "value=" : "", value.replaceAll("([\\\\\"])", "\\\\$1"));
+        return String.format("@%s(%s\"%s\")", ServiceType.class.getName(), "", value.replaceAll("([\\\\\"])", "\\\\$1"));
     }
 
     @Override

http-client/src/main/java/com/proofpoint/http/client/jetty/JettyHttpClient.java

@@ -76,8 +76,7 @@ public class JettyHttpClient
 {
 
     private static final Logger log = Logger.get(JettyHttpClient.class);
-    private static final String[] ENABLED_PROTOCOLS = System.getProperty("java.version").matches("11(\\.0\\.[12])?") ?
-            new String[] {"TLSv1.2"} : new String[] {"TLSv1.2", "TLSv1.3"};
+    private static final String[] ENABLED_PROTOCOLS = {"TLSv1.2", "TLSv1.3"};
     private static final String[] ENABLED_CIPHERS = {
             "TLS_AES_128_GCM_SHA256",
             "TLS_AES_256_GCM_SHA384",

http-server/src/main/java/com/proofpoint/http/server/HttpServer.java

@@ -93,8 +93,7 @@
 
 public class HttpServer
 {
-    private static final String[] ENABLED_PROTOCOLS = System.getProperty("java.version").matches("11(\\.0\\.[12])?") ?
-            new String[] {"TLSv1.2"} : new String[] {"TLSv1.2", "TLSv1.3"};
+    private static final String[] ENABLED_PROTOCOLS = {"TLSv1.2", "TLSv1.3"};
     private static final String[] ENABLED_CIPHERS = {
             "TLS_AES_128_GCM_SHA256",
             "TLS_AES_256_GCM_SHA384",
@@ -270,8 +269,6 @@ protected void runJob(Runnable job)
     private ServerConnector createHttpsServerConnector(HttpServerConfig config, ServerSocketChannel serverSocketChannel, HttpConfiguration configuration, Executor threadPool, int acceptors, int selectors)
             throws IOException
     {
-        checkState(!System.getProperty("java.version").startsWith("1.8."), "Java 8 is no longer supported");
-
         SecureRequestCustomizer customizer = new SecureRequestCustomizer();
         customizer.setSniHostCheck(false);
         customizer.setSniRequired(false);