Add tests

examples/pom.xml

@@ -92,6 +92,12 @@
 			<groupId>org.springframework</groupId>
 			<artifactId>spring-web</artifactId>
 		</dependency>
+
+		<dependency>
+			<groupId>org.slf4j</groupId>
+			<artifactId>slf4j-simple</artifactId>
+		</dependency>
+
 	</dependencies>
 
 	<reporting>

hapi-fhir-client/src/main/java/ca/uhn/fhir/rest/client/interceptor/SimpleRequestHeaderInterceptor.java

@@ -32,6 +32,8 @@ import org.apache.commons.lang3.Validate;
 /**
  * This interceptor adds an arbitrary header to requests made by this client. Both the
  * header name and the header value are specified by the calling code.
+ *
+ * @see AdditionalRequestHeadersInterceptor for a more advanced version of this interceptor which can add multiple headers
  */
 public class SimpleRequestHeaderInterceptor implements IClientInterceptor {
 

hapi-fhir-jpaserver-base/src/test/java/ca/uhn/fhir/jpa/provider/r4/ResourceProviderR4Test.java

@@ -3149,16 +3149,18 @@ public class ResourceProviderR4Test extends BaseResourceProviderR4Test {
 			.count(1)
 			.execute();
 
-		ourLog.info("** Done searching with count of 1");
+		ourLog.info("** Done searching in {}ms with count of 1", sw.getMillis());
 
 		ourLog.info(myCapturingInterceptor.getLastResponse().getAllHeaders().toString());
 		assertThat(myCapturingInterceptor.getLastResponse().getHeaders(Constants.HEADER_X_CACHE), Matchers.<String>empty());
 		assertThat(myCapturingInterceptor.getLastResponse().getHeaders(Constants.HEADER_X_CACHE.toLowerCase()),Matchers.<String>empty());
 
+		String msg = "Total is " + found.getTotalElement().getValue() + " and took " + sw.getMillis() + " millis";
+
 		// If this fails under load, try increasing the throttle above
-		assertEquals(null, found.getTotalElement().getValue());
+		assertEquals(msg,null, found.getTotalElement().getValue());
-		assertEquals(1, found.getEntry().size());
+		assertEquals(msg, 1, found.getEntry().size());
-		assertThat(sw.getMillis(), lessThan(1000L));
+		assertThat(msg, sw.getMillis(), lessThan(1000L));
 
 	}