Upgrade shadow to 4.0.1 and exclude module-info.class files.

dd-java-agent/agent-tooling/src/main/java/datadog/trace/agent/tooling/Utils.java

@@ -37,8 +37,6 @@ public class Utils {
     "org.msgpack",
     "com.fasterxml.jackson",
     "org.yaml.snakeyaml",
-    // modules
-    "module-info",
   };
 
   private static Method findLoadedClassMethod = null;

dd-java-agent/dd-java-agent.gradle

@@ -1,5 +1,5 @@
 plugins {
-  id "com.github.johnrengelman.shadow" version "2.0.4"
+  id "com.github.johnrengelman.shadow" version "4.0.1"
 }
 
 description = 'dd-java-agent'
@@ -32,6 +32,8 @@ def includeShadowJar(subproject, jarname) {
 
       mergeServiceFiles()
 
+      exclude '**/module-info.class'
+
       dependencies {
         exclude(dependency("org.projectlombok:lombok:$versions.lombok"))
       }