[RESTEASY-3439] Use the resolved ConfigurationFactory when creating t…

…he Configuration to use in the ConfigurationBootstrap.

https://issues.redhat.com/browse/RESTEASY-3439
Signed-off-by: James R. Perkins <jperkins@redhat.com>

resteasy-core/src/main/java/org/jboss/resteasy/plugins/server/servlet/ConfigurationBootstrap.java

@@ -15,7 +15,7 @@
 import org.jboss.resteasy.spi.ResteasyConfiguration;
 import org.jboss.resteasy.spi.ResteasyDeployment;
 import org.jboss.resteasy.spi.config.Configuration;
-import org.jboss.resteasy.spi.config.DefaultConfiguration;
+import org.jboss.resteasy.spi.config.ConfigurationFactory;
 import org.jboss.resteasy.util.HttpHeaderNames;
 
 /**
@@ -26,7 +26,7 @@
  */
 public abstract class ConfigurationBootstrap implements ResteasyConfiguration {
     private ResteasyDeployment deployment = new ResteasyDeploymentImpl();
-    private final Configuration config = new DefaultConfiguration(this);
+    private final Configuration config = ConfigurationFactory.getInstance().getConfiguration(this);
 
     public ResteasyDeployment createDeployment() {
         String deploymentSensitive = getParameter("resteasy.use.deployment.sensitive.factory");