Rename Pre-Main class (#955)

docs/contributing/javaagent-jar-components.md

@@ -12,7 +12,7 @@ into 3 parts:
 #### `javaagent` module
 
 This module consists of single class
-`io.opentelemetry.auto.bootstrap.AgentBootstrap` which implements [Java
+`io.opentelemetry.javaagent.OpenTelemetryAgent` which implements [Java
 instrumentation
 agent](https://docs.oracle.com/javase/7/docs/api/java/lang/instrument/package-summary.html).
 This class is loaded during application startup by application classloader.

javaagent-bootstrap/src/main/java/io/opentelemetry/auto/bootstrap/Agent.java

@@ -27,7 +27,7 @@ import org.slf4j.LoggerFactory;
 /**
  * Agent start up logic.
  *
- * <p>This class is loaded and called by {@code io.opentelemetry.auto.bootstrap.AgentBootstrap}
+ * <p>This class is loaded and called by {@code io.opentelemetry.javaagent.OpenTelemetryAgent}
  *
  * <p>The intention is for this class to be loaded by bootstrap classloader to make sure we have
  * unimpeded access to the rest of agent parts.

javaagent/javaagent.gradle

@@ -18,9 +18,9 @@ configurations {
 jar {
   manifest {
     attributes(
-      "Main-Class": "io.opentelemetry.auto.bootstrap.AgentBootstrap",
+      "Main-Class": "io.opentelemetry.javaagent.OpenTelemetryAgent",
-      "Agent-Class": "io.opentelemetry.auto.bootstrap.AgentBootstrap",
+      "Agent-Class": "io.opentelemetry.javaagent.OpenTelemetryAgent",
-      "Premain-Class": "io.opentelemetry.auto.bootstrap.AgentBootstrap",
+      "Premain-Class": "io.opentelemetry.javaagent.OpenTelemetryAgent",
       "Can-Redefine-Classes": true,
       "Can-Retransform-Classes": true,
     )

javaagent/src/main/java/io/opentelemetry/javaagent/OpenTelemetryAgent.java

@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-package io.opentelemetry.auto.bootstrap;
+package io.opentelemetry.javaagent;
 
 import java.io.BufferedReader;
 import java.io.File;
@@ -55,8 +55,8 @@ import java.util.regex.Pattern;
  *   <li>Do dot touch any logging facilities here so we can configure them later
  * </ul>
  */
-public class AgentBootstrap {
+public class OpenTelemetryAgent {
-  private static final Class<?> thisClass = AgentBootstrap.class;
+  private static final Class<?> thisClass = OpenTelemetryAgent.class;
 
   public static void premain(final String agentArgs, final Instrumentation inst) {
     agentmain(agentArgs, inst);

javaagent/src/test/groovy/io/opentelemetry/auto/AgentLoadedIntoBootstrapTest.groovy

@@ -16,8 +16,8 @@
 
 package io.opentelemetry.auto
 
-import io.opentelemetry.auto.bootstrap.AgentBootstrap
 import io.opentelemetry.auto.test.IntegrationTestUtils
+import io.opentelemetry.javaagent.OpenTelemetryAgent
 import jvmbootstraptest.AgentLoadedChecker
 import jvmbootstraptest.MyClassLoaderIsNotBootstrap
 import spock.lang.Specification
@@ -50,7 +50,7 @@ class AgentLoadedIntoBootstrapTest extends Specification {
     def mainClassName = MyClassLoaderIsNotBootstrap.getName()
     def pathToJar = IntegrationTestUtils.createJarWithClasses(mainClassName,
       MyClassLoaderIsNotBootstrap,
-      AgentBootstrap).getPath()
+      OpenTelemetryAgent).getPath()
 
     expect:
     IntegrationTestUtils.runOnSeparateJvm(mainClassName

javaagent/src/test/groovy/io/opentelemetry/auto/integration/classloading/ShadowPackageRenamingTest.groovy

@@ -73,6 +73,13 @@ class ShadowPackageRenamingTest extends Specification {
           break
         }
       }
+      if (info.getName() == 'io.opentelemetry.javaagent.OpenTelemetryAgent') {
+        // io.opentelemetry.javaagent.OpenTelemetryAgent isn't needed in the bootstrap prefixes
+        // because it doesn't live in the bootstrap class loader, but it's still "good" for the
+        // purpose of this test which is just checking all the classes sitting directly inside of
+        // the agent jar
+        goodPrefix = true
+      }
       if (!goodPrefix) {
         badBootstrapPrefixes.add(info.getName())
       }