Attempt to fix linkage errors

Author: JonasKunz

javaagent-bootstrap/src/main/java/io/opentelemetry/javaagent/bootstrap/AgentClassLoader.java

@@ -167,7 +167,14 @@ public Class<?> loadClass(String name, boolean resolve) throws ClassNotFoundExce
       }
       // search from parent and urls added to this loader
       if (clazz == null) {
-        clazz = super.loadClass(name, false);
+        try {
+          clazz = Class.forName(name, false, this.getParent());
+        } catch (ClassNotFoundException e) {
+          // ignore
+        }
+      }
+      if (clazz == null) {
+        clazz = super.findClass(name);
       }
       if (resolve) {
         resolveClass(clazz);