Synapse's bytecode level does not support static interface calls, so must use Java8BytecodeBridge here (#10154)

Author: mcculls

dd-java-agent/instrumentation/synapse-3.0/src/main/java/datadog/trace/instrumentation/synapse3/SynapseServerInstrumentation.java

@@ -2,6 +2,7 @@
 
 import static datadog.trace.agent.tooling.bytebuddy.matcher.NameMatchers.named;
 import static datadog.trace.agent.tooling.bytebuddy.matcher.NameMatchers.namedOneOf;
+import static datadog.trace.bootstrap.instrumentation.api.Java8BytecodeBridge.getRootContext;
 import static datadog.trace.bootstrap.instrumentation.api.Java8BytecodeBridge.spanFromContext;
 import static datadog.trace.instrumentation.synapse3.SynapseServerDecorator.DECORATE;
 import static datadog.trace.instrumentation.synapse3.SynapseServerDecorator.SYNAPSE_CONTEXT_KEY;
@@ -125,7 +126,7 @@ public static void errorResponse(
         @Advice.Argument(value = 1, optional = true) final Object error) {
       // check and remove context so it won't be finished twice
       Context context = (Context) connection.getContext().removeAttribute(SYNAPSE_CONTEXT_KEY);
-      if (null != context && context != Context.root()) {
+      if (null != context && context != getRootContext()) {
         AgentSpan span = spanFromContext(context);
         if (null != span) {
           if (error instanceof Throwable) {