Drop setResolvePlaceholders()

Remove setResolvePlaceholders() from PropertySourcesPropertyValues
and instead rely only on the constructor.

See gh-6964

Author: philwebb

spring-boot/src/main/java/org/springframework/boot/bind/PropertySourcesPropertyValues.java

@@ -56,7 +56,7 @@ public class PropertySourcesPropertyValues implements PropertyValues {
 
 	private final ConcurrentHashMap<String, PropertySource<?>> collectionOwners = new ConcurrentHashMap<String, PropertySource<?>>();
 
-	private boolean resolvePlaceholders = true;
+	private final boolean resolvePlaceholders;
 
 	/**
 	 * Create a new PropertyValues from the given PropertySources.
@@ -106,15 +106,6 @@ public PropertySourcesPropertyValues(PropertySources propertySources,
 		}
 	}
 
-	/**
-	 * Flag to indicate that placeholders should be replaced during binding. Default is
-	 * true.
-	 * @param resolvePlaceholders flag value
-	 */
-	public void setResolvePlaceholders(boolean resolvePlaceholders) {
-		this.resolvePlaceholders = resolvePlaceholders;
-	}
-
 	private void processPropertySource(PropertySource<?> source,
 			PropertySourcesPropertyResolver resolver) {
 		if (source instanceof CompositePropertySource) {

spring-boot/src/main/java/org/springframework/boot/context/embedded/tomcat/ConnectorStartFailedException.java

@@ -34,7 +34,6 @@ public class ConnectorStartFailedException extends EmbeddedServletContainerExcep
 	/**
 	 * Creates a new {@code ConnectorStartFailedException} for a connector that's
 	 * configured to listen on the given {@code port}.
-	 *
 	 * @param port the port
 	 */
 	public ConnectorStartFailedException(int port) {