Polishing.

[#651]

Author: mp911de

src/main/java/io/r2dbc/postgresql/client/ConnectionSettings.java

@@ -175,7 +175,7 @@ public static final class Builder {
 
         private LogLevel noticeLogLevel = LogLevel.DEBUG;
 
-        private SSLConfig sslConfig = new SSLConfig(SSLMode.DISABLE, null, null);
+        private SSLConfig sslConfig = SSLConfig.disabled();
 
         private Map<String, String> startupOptions = Collections.emptyMap();
 

src/main/java/io/r2dbc/postgresql/client/ReactorNettyClient.java

@@ -365,7 +365,7 @@ private void handleParameterStatus(ParameterStatus message) {
     public static Mono<ReactorNettyClient> connect(String host, int port) {
         Assert.requireNonNull(host, "host must not be null");
 
-        return connect(host, port, null, new SSLConfig(SSLMode.DISABLE, null, null));
+        return connect(host, port, null, SSLConfig.disabled());
     }
 
     /**

src/main/java/io/r2dbc/postgresql/client/SSLConfig.java

@@ -29,6 +29,8 @@
 
 public final class SSLConfig {
 
+    private static SSLConfig DISABLED = new SSLConfig(SSLMode.DISABLE, null, (hostname, session) -> true);
+
     @Nullable
     private final HostnameVerifier hostnameVerifier;
 
@@ -65,7 +67,7 @@ public SSLConfig(SSLNegotiation sslNegotiation, SSLMode sslMode, @Nullable Suppl
     }
 
     public static SSLConfig disabled() {
-        return new SSLConfig(SSLMode.DISABLE, null, (hostname, session) -> true);
+        return DISABLED;
     }
 
     HostnameVerifier getHostnameVerifier() {

src/main/java/io/r2dbc/postgresql/message/frontend/StartupMessage.java

@@ -125,7 +125,7 @@ public int hashCode() {
     @Override
     public String toString() {
         return "StartupMessage{" +
-            ", database='" + this.database + '\'' +
+            "database='" + this.database + '\'' +
             ", username='" + this.username + '\'' +
             '}';
     }