spotbugs and muzzle

Author: amarziali

dd-java-agent/instrumentation/websocket/jetty-websocket/jetty-websocket-10/build.gradle

@@ -8,13 +8,16 @@ addTestSuiteForDir("latestDepTest", "test")
 
 compileMain_java11Java.configure {
   setJavaVersion(it, 11)
+  sourceCompatibility = JavaVersion.VERSION_1_8
+  targetCompatibility = JavaVersion.VERSION_1_8
 }
 [compileTestGroovy, compileLatestDepTestGroovy].each {
   it.javaLauncher = getJavaLauncherFor(11)
 }
 
 dependencies {
   main_java11CompileOnly group: 'org.eclipse.jetty.websocket', name: 'websocket-javax-server', version: '10.0.0'
+  main_java11CompileOnly group: 'com.github.spotbugs', name: 'spotbugs-annotations', version: '4.2.0'
 
   testImplementation group: 'org.eclipse.jetty.websocket', name: 'websocket-javax-server', version: '10.0.0'
   latestDepTestImplementation group: 'org.eclipse.jetty.websocket', name: 'websocket-javax-server', version: '10.+'

dd-java-agent/instrumentation/websocket/jetty-websocket/jetty-websocket-10/src/main/java11/datadog/trace/instrumentation/websocket/jetty10/WebSocketAdvices.java

@@ -5,6 +5,7 @@
 import datadog.trace.bootstrap.instrumentation.api.AgentSpan;
 import datadog.trace.bootstrap.instrumentation.api.AgentTracer;
 import datadog.trace.bootstrap.instrumentation.websocket.HandlerContext;
+import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
 import java.lang.invoke.MethodHandle;
 import java.lang.invoke.MethodHandles;
 import javax.websocket.Endpoint;
@@ -13,6 +14,7 @@
 import org.eclipse.jetty.websocket.javax.common.JavaxWebSocketMessageMetadata;
 import org.eclipse.jetty.websocket.javax.common.JavaxWebSocketSession;
 
+@SuppressFBWarnings("UC_USELESS_OBJECT_STACK")
 public class WebSocketAdvices {
   public static class OpenClose9Advice {
     @Advice.OnMethodEnter(suppress = Throwable.class)