Better tests and javadocs

Author: cyrille-leclerc

maven-extension/src/main/java/io/opentelemetry/maven/AutoConfigureUtil2.java

@@ -6,19 +6,20 @@
 package io.opentelemetry.maven;
 
 import io.opentelemetry.sdk.autoconfigure.AutoConfiguredOpenTelemetrySdk;
-import io.opentelemetry.sdk.autoconfigure.internal.AutoConfigureUtil;
 import io.opentelemetry.sdk.resources.Resource;
 import java.lang.reflect.InvocationTargetException;
 import java.lang.reflect.Method;
 
+/** Utility class to use the {@link AutoConfiguredOpenTelemetrySdk}. */
 public class AutoConfigureUtil2 {
 
   private AutoConfigureUtil2() {}
 
   /**
-   * Returns the {@link Resource} that was auto-configured.
+   * Returns the {@link Resource} that was autoconfigured.
    *
-   * @see AutoConfigureUtil#getConfig(AutoConfiguredOpenTelemetrySdk)
+   * <p>Inspired by {@link
+   * io.opentelemetry.sdk.autoconfigure.internal.AutoConfigureUtil#getConfig(AutoConfiguredOpenTelemetrySdk)}
    */
   public static Resource getResource(
       AutoConfiguredOpenTelemetrySdk autoConfiguredOpenTelemetrySdk) {

maven-extension/src/test/java/io/opentelemetry/maven/AutoConfigureUtil2Test.java

@@ -0,0 +1,24 @@
+/*
+ * Copyright The OpenTelemetry Authors
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package io.opentelemetry.maven;
+
+import io.opentelemetry.sdk.autoconfigure.AutoConfiguredOpenTelemetrySdk;
+import java.lang.reflect.Method;
+import org.junit.jupiter.api.Test;
+
+class AutoConfigureUtil2Test {
+
+  /**
+   * Verify the reflection call works with the current version of AutoConfiguredOpenTelemetrySdk.
+   *
+   * @throws NoSuchMethodException if the method does not exist
+   */
+  @Test
+  void test_getResource() throws NoSuchMethodException {
+    Method method = AutoConfiguredOpenTelemetrySdk.class.getDeclaredMethod("getResource");
+    method.setAccessible(true);
+  }
+}