Move the browserSdkLoader from SecondEntryPoint to AfterAgentListener

Author: xiang17

agent/agent-tooling/src/main/java/com/microsoft/applicationinsights/agent/internal/init/AfterAgentListener.java

@@ -5,6 +5,7 @@
 
 import com.google.auto.service.AutoService;
 import com.microsoft.applicationinsights.agent.internal.configuration.Configuration;
+import com.microsoft.applicationinsights.agent.internal.configuration.SnippetConfiguration;
 import com.microsoft.applicationinsights.agent.internal.httpclient.LazyHttpClient;
 import com.microsoft.applicationinsights.agent.internal.profiler.ProfilingInitializer;
 import com.microsoft.applicationinsights.agent.internal.telemetry.TelemetryClient;
@@ -29,6 +30,11 @@ public void afterAgent(AutoConfiguredOpenTelemetrySdk autoConfiguredOpenTelemetr
     PerformanceCounterInitializer.initialize(configuration);
 
     TelemetryClient telemetryClient = TelemetryClient.getActive();
+    if (configuration.preview.browserSdkLoader.enabled
+        && telemetryClient != null
+        && telemetryClient.getConnectionString() != null) {
+      SnippetConfiguration.initializeSnippet(configuration.connectionString);
+    }
     if (configuration.preview.profiler.enabled
         && telemetryClient != null
         && telemetryClient.getConnectionString() != null) {

agent/agent-tooling/src/main/java/com/microsoft/applicationinsights/agent/internal/init/SecondEntryPoint.java

@@ -34,7 +34,6 @@
 import com.microsoft.applicationinsights.agent.internal.configuration.Configuration.SamplingTelemetryType;
 import com.microsoft.applicationinsights.agent.internal.configuration.ConfigurationBuilder;
 import com.microsoft.applicationinsights.agent.internal.configuration.RpConfiguration;
-import com.microsoft.applicationinsights.agent.internal.configuration.SnippetConfiguration;
 import com.microsoft.applicationinsights.agent.internal.exporter.AgentLogExporter;
 import com.microsoft.applicationinsights.agent.internal.exporter.AgentMetricExporter;
 import com.microsoft.applicationinsights.agent.internal.exporter.AgentSpanExporter;
@@ -214,12 +213,6 @@ public void customize(AutoConfigurationCustomizer autoConfiguration) {
           initStatsbeatFeatureSet(configuration));
     }
 
-    if (telemetryClient.getConnectionString() != null) {
-      if (configuration.preview.browserSdkLoader.enabled) {
-        SnippetConfiguration.initializeSnippet(configuration.connectionString);
-      }
-    }
-
     // TODO (trask) add this method to AutoConfigurationCustomizer upstream?
     ((AutoConfiguredOpenTelemetrySdkBuilder) autoConfiguration).disableShutdownHook();