Enable instrumentation of Spring EJB clients

instrumentation/spring/spring-rmi-4.0/javaagent/build.gradle.kts

@@ -20,6 +20,9 @@ dependencies {
   library("org.springframework:spring-context:4.0.0.RELEASE")
   library("org.springframework:spring-aop:4.0.0.RELEASE")
   testLibrary("org.springframework.boot:spring-boot:1.1.0.RELEASE")
+  testImplementation("org.apache.tomee:openejb-core:8.0.16")
+  testImplementation("org.apache.tomee:openejb-ejbd:8.0.16")
+  testImplementation("org.apache.tomee:openejb-client:8.0.16")
 
   // rmi remoting was removed in spring 6
   latestDepTestLibrary("org.springframework:spring-context:5.+") // documented limitation

instrumentation/spring/spring-rmi-4.0/javaagent/src/main/java/io/opentelemetry/javaagent/instrumentation/spring/rmi/v4_0/SpringRmiIgnoredTypesConfigurer.java

@@ -0,0 +1,22 @@
+/*
+ * Copyright The OpenTelemetry Authors
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package io.opentelemetry.javaagent.instrumentation.spring.rmi.v4_0;
+
+import com.google.auto.service.AutoService;
+import io.opentelemetry.javaagent.extension.ignore.IgnoredTypesBuilder;
+import io.opentelemetry.javaagent.extension.ignore.IgnoredTypesConfigurer;
+import io.opentelemetry.sdk.autoconfigure.spi.ConfigProperties;
+
+@AutoService(IgnoredTypesConfigurer.class)
+public class SpringRmiIgnoredTypesConfigurer implements IgnoredTypesConfigurer {
+
+  @Override
+  public void configure(IgnoredTypesBuilder builder, ConfigProperties config) {
+    // The Spring EJB classes are ignored in the AdditionalLibraryIgnoredTypesConfigurer, but
+    // are required when utilizing Spring's local-slsb and remote-slsb to access EJBs through RMI.
+    builder.allowClass("org.springframework.ejb.access.");
+  }
+}

instrumentation/spring/spring-rmi-4.0/javaagent/src/main/java/io/opentelemetry/javaagent/instrumentation/spring/rmi/v4_0/client/ClientInstrumentation.java

@@ -5,6 +5,7 @@
 
 package io.opentelemetry.javaagent.instrumentation.spring.rmi.v4_0.client;
 
+import static io.opentelemetry.javaagent.extension.matcher.AgentElementMatchers.extendsClass;
 import static io.opentelemetry.javaagent.instrumentation.spring.rmi.v4_0.SpringRmiSingletons.clientInstrumenter;
 import static net.bytebuddy.matcher.ElementMatchers.isMethod;
 import static net.bytebuddy.matcher.ElementMatchers.named;
@@ -25,7 +26,8 @@ public class ClientInstrumentation implements TypeInstrumentation {
 
   @Override
   public ElementMatcher<TypeDescription> typeMatcher() {
-    return named("org.springframework.remoting.rmi.RmiClientInterceptor");
+    return named("org.springframework.remoting.rmi.RmiClientInterceptor")
+        .or(extendsClass(named("org.springframework.ejb.access.AbstractSlsbInvokerInterceptor")));
   }
 
   @Override