Update auth extension usage in samples (#400)

Author: psx95

build.gradle

@@ -160,12 +160,12 @@ subprojects {
 		googleTraceVersion = '2.51.0'
 		googleCloudBomVersion = '26.48.0'
 		cloudMonitoringVersion = '3.52.0'
-		openTelemetryBomVersion = '1.46.0'
-		openTelemetryVersion = '1.46.0'
+		openTelemetryBomVersion = '1.47.0'
+		openTelemetryVersion = '1.47.0'
 		openTelemetryInstrumentationBomVersion = '2.12.0'
 		openTelemetryInstrumentationVersion = '2.12.0'
 		openTelemetrySemconvVersion = '1.29.0'
-		openTelemetryContribVersion = '1.43.0'
+		openTelemetryContribVersion = '1.44.0'
 		junitVersion = '4.13'
 		junit5Version = '5.10.0'
 		mockitoVersion = '5.2.0'

examples/autoinstrument/build.gradle

@@ -29,8 +29,8 @@ configurations {
 	agent
 }
 
-// the shaded variant name for gcp auth extension is an empty string
-def gcp_auth_extension_shaded_classifier = ''
+// the shaded variant name for gcp auth extension
+def gcp_auth_extension_shaded_classifier = 'shadow'
 
 dependencies {
 	agent agentLibraries.agent

examples/otlp-spring/build.gradle

@@ -28,15 +28,12 @@ repositories {
 	mavenCentral()
 }
 
-// the shaded variant name for gcp auth extension is an empty string
-def gcp_auth_extension_shaded_classifier = ''
-
 dependencies {
 	implementation(libraries.opentelemetry_api)
 	implementation(libraries.opentelemetry_sdk)
 	implementation(libraries.opentelemetry_otlp_exporter)
 	implementation(libraries.opentelemetry_sdk_autoconf)
-	implementation("${libraries.opentelemetry_gcp_auth_extension}:${gcp_auth_extension_shaded_classifier}")
+	implementation(libraries.opentelemetry_gcp_auth_extension)
 	implementation(libraries.opentelemetry_gcp_resources)
 
 	implementation(libraries.spring_boot_starter_web)

examples/otlptrace/README.md

@@ -22,3 +22,5 @@ Finally, to run the sample from the project root:
 ```
 cd examples/otlptrace && gradle run
 ```
+
+Running this sample will generate and export Traces to Google Cloud.

examples/otlptrace/build.gradle

@@ -20,23 +20,19 @@ plugins {
 // examples are not published, so version can be hardcoded
 version = '0.1.0'
 
-description = 'Example for OTLP exporter'
-
-// the shaded variant name for gcp auth extension is an empty string
-def gcp_auth_extension_shaded_classifier = ''
+description = 'Example showing OTLP exporter being used for traces export to GCP'
 
 dependencies {
 	implementation(libraries.opentelemetry_api)
 	implementation(libraries.opentelemetry_sdk)
 	implementation(libraries.opentelemetry_otlp_exporter)
 	implementation(libraries.opentelemetry_sdk_autoconf)
-	implementation("${libraries.opentelemetry_gcp_auth_extension}:${gcp_auth_extension_shaded_classifier}")
+	implementation(libraries.opentelemetry_gcp_auth_extension)
 	implementation(libraries.opentelemetry_gcp_resources)
 }
 
 // Provide headers from env variable
 def autoconf_config = [
-	'-Dgoogle.cloud.project=your-gcp-project-id',
 	'-Dotel.exporter.otlp.endpoint=https://telemetry.googleapis.com',
 	'-Dotel.traces.exporter=otlp',
 	'-Dotel.logs.exporter=none',

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

@@ -20,7 +20,6 @@
 import io.opentelemetry.sdk.OpenTelemetrySdk;
 import io.opentelemetry.sdk.autoconfigure.AutoConfiguredOpenTelemetrySdk;
 import io.opentelemetry.sdk.common.CompletableResultCode;
-import java.io.IOException;
 import java.util.Random;
 import java.util.concurrent.TimeUnit;
 
@@ -63,8 +62,8 @@ private static void doWork(String description) {
     }
   }
 
-  public static void main(String[] args) throws IOException {
-    // Configure the OpenTelemetry pipeline with CloudTrace exporter
+  public static void main(String[] args) {
+    // Configure the OpenTelemetry pipeline with Auto configuration
     openTelemetrySdk = AutoConfiguredOpenTelemetrySdk.initialize().getOpenTelemetrySdk();
 
     // Application-specific logic