diff --git a/dd-java-agent/instrumentation/tomcat-appsec-7/src/main/java/datadog/trace/instrumentation/tomcat7/ErrorReportValueInstrumentation.java b/dd-java-agent/instrumentation/tomcat-appsec-7/src/main/java/datadog/trace/instrumentation/tomcat7/ErrorReportValueInstrumentation.java
index 62d736824eb..864c132da58 100644
--- a/dd-java-agent/instrumentation/tomcat-appsec-7/src/main/java/datadog/trace/instrumentation/tomcat7/ErrorReportValueInstrumentation.java
+++ b/dd-java-agent/instrumentation/tomcat-appsec-7/src/main/java/datadog/trace/instrumentation/tomcat7/ErrorReportValueInstrumentation.java
@@ -21,17 +21,6 @@ public String instrumentedType() {
     return "org.apache.catalina.valves.ErrorReportValve";
   }
 
-  @Override
-  public String[] helperClassNames() {
-    return new String[] {
-      "java.lang.StringBuilder",
-      "java.io.Writer",
-      "java.io.IOException",
-      "java.lang.IllegalStateException",
-      "datadog.trace.bootstrap.blocking.BlockingActionHelper"
-    };
-  }
-
   @Override
   public void adviceTransformations(AdviceTransformation transformation) {
     transformation.applyAdvice(
diff --git a/dd-smoke-tests/appsec/spring-mvc/.gitignore b/dd-smoke-tests/appsec/spring-mvc/.gitignore
deleted file mode 100644
index b63da4551b2..00000000000
--- a/dd-smoke-tests/appsec/spring-mvc/.gitignore
+++ /dev/null
@@ -1,42 +0,0 @@
-.gradle
-build/
-!gradle/wrapper/gradle-wrapper.jar
-!**/src/main/**/build/
-!**/src/test/**/build/
-
-### IntelliJ IDEA ###
-.idea/modules.xml
-.idea/jarRepositories.xml
-.idea/compiler.xml
-.idea/libraries/
-*.iws
-*.iml
-*.ipr
-out/
-!**/src/main/**/out/
-!**/src/test/**/out/
-
-### Eclipse ###
-.apt_generated
-.classpath
-.factorypath
-.project
-.settings
-.springBeans
-.sts4-cache
-bin/
-!**/src/main/**/bin/
-!**/src/test/**/bin/
-
-### NetBeans ###
-/nbproject/private/
-/nbbuild/
-/dist/
-/nbdist/
-/.nb-gradle/
-
-### VS Code ###
-.vscode/
-
-### Mac OS ###
-.DS_Store
\ No newline at end of file