Update region tags (#429)

Author: psx95

examples/otlptrace/build.gradle

@@ -29,7 +29,9 @@ dependencies {
 	implementation("io.opentelemetry:opentelemetry-exporter-otlp:1.56.0")
 	implementation("io.opentelemetry:opentelemetry-sdk-extension-autoconfigure:1.56.0")
 	// [END opentelemetry_autoconf_otlp_required_deps]
-	implementation(libraries.opentelemetry_gcp_auth_extension)
+	// [START opentelemetry_otlp_auth_deps]
+	implementation("io.opentelemetry.contrib:opentelemetry-gcp-auth-extension:1.52.0-alpha")
+	// [END opentelemetry_otlp_auth_deps]
 	implementation(libraries.opentelemetry_gcp_resources)
 }
 

examples/otlptrace/src/main/java/com/google/cloud/opentelemetry/example/otlptrace/OTLPTraceExample.java

@@ -64,12 +64,12 @@ private static void doWork(String description) {
     }
   }
 
+  // [START opentelemetry_autoconf_configure_sdk]
   public static void main(String[] args) {
-    // [START opentelemetry_autoconf_configure_sdk]
     // Configure the OpenTelemetry pipeline with Auto configuration
     openTelemetrySdk = AutoConfiguredOpenTelemetrySdk.initialize().getOpenTelemetrySdk();
-    // [END opentelemetry_autoconf_configure_sdk]
 
+    // [START_EXCLUDE]
     // Application-specific logic
     myUseCase("One");
     myUseCase("Two");
@@ -79,5 +79,7 @@ public static void main(String[] args) {
         openTelemetrySdk.getSdkTracerProvider().shutdown();
     // wait till export finishes
     completableResultCode.join(10000, TimeUnit.MILLISECONDS);
+    // [END_EXCLUDE]
   }
+  // [END opentelemetry_autoconf_configure_sdk]
 }