Disable ThrowableInstrumentation during native-image builds

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: jbachorik

dd-java-agent/instrumentation/datadog/profiling/exception-profiling/src/main/java/datadog/exceptions/instrumentation/ThrowableInstrumentation.java

@@ -18,7 +18,7 @@ public ThrowableInstrumentation() {
 
   @Override
   public boolean isEnabled() {
-    return Platform.hasJfr() && super.isEnabled();
+    return Platform.hasJfr() && !Platform.isNativeImageBuilder() && super.isEnabled();
   }
 
   @Override

dd-java-agent/instrumentation/graal/graal-native-image-20.0/src/main/java/datadog/trace/instrumentation/graal/nativeimage/AnnotationSubstitutionProcessorInstrumentation.java

@@ -34,42 +34,9 @@ public static class FindTargetClassesAdvice {
     public static void onExit(@Advice.Return(readOnly = false) List<Class<?>> result) {
       result.add(Target_com_datadog_profiling_agent_ProcessContext.class);
       result.add(Target_datadog_jctools_util_UnsafeRefArrayAccess.class);
-
-      // Only register JMXFetch substitutions if JMXFetch is actually present on the classpath.
-      // Load reflectively to prevent GraalVM's annotation processor from discovering the
-      // @TargetClass annotations when JMXFetch is absent (e.g. native-image smoke tests).
-      if (isJmxFetchPresent()) {
-        try {
-          ClassLoader cl = FindTargetClassesAdvice.class.getClassLoader();
-          result.add(
-              Class.forName(
-                  "datadog.trace.instrumentation.graal.nativeimage.Target_org_datadog_jmxfetch_App",
-                  false,
-                  cl));
-          result.add(
-              Class.forName(
-                  "datadog.trace.instrumentation.graal.nativeimage.Target_org_datadog_jmxfetch_Status",
-                  false,
-                  cl));
-          result.add(
-              Class.forName(
-                  "datadog.trace.instrumentation.graal.nativeimage.Target_org_datadog_jmxfetch_reporter_JsonReporter",
-                  false,
-                  cl));
-        } catch (ClassNotFoundException e) {
-          // Substitution classes not available, skip them
-        }
-      }
-    }
-
-    private static boolean isJmxFetchPresent() {
-      try {
-        Class.forName(
-            "org.datadog.jmxfetch.App", false, FindTargetClassesAdvice.class.getClassLoader());
-        return true;
-      } catch (ClassNotFoundException e) {
-        return false;
-      }
+      result.add(Target_org_datadog_jmxfetch_App.class);
+      result.add(Target_org_datadog_jmxfetch_Status.class);
+      result.add(Target_org_datadog_jmxfetch_reporter_JsonReporter.class);
     }
   }
 }

dd-java-agent/instrumentation/graal/graal-native-image-20.0/src/main/java/datadog/trace/instrumentation/graal/nativeimage/GraalNativeImageModule.java

@@ -27,7 +27,6 @@ public String[] muzzleIgnoredClassNames() {
     return new String[] {
       "jdk.vm.ci.meta.ResolvedJavaType",
       "jdk.vm.ci.meta.ResolvedJavaField",
-      packageName + ".AnnotationSubstitutionProcessorInstrumentation$FindTargetClassesAdvice",
       // ignore helper class names as usual
       packageName + ".Target_com_datadog_profiling_agent_ProcessContext",
       packageName + ".Target_datadog_jctools_util_UnsafeRefArrayAccess",