diff --git a/grails-core/src/main/groovy/grails/compiler/traits/TraitInjector.java b/grails-core/src/main/groovy/grails/compiler/traits/TraitInjector.java
index 08aaf74ea8a..9e4c4765279 100644
--- a/grails-core/src/main/groovy/grails/compiler/traits/TraitInjector.java
+++ b/grails-core/src/main/groovy/grails/compiler/traits/TraitInjector.java
@@ -27,8 +27,6 @@
 public interface TraitInjector {
     Class getTrait();
 
-    boolean shouldInject(URL url);
-
     String[] getArtefactTypes();
 }
 
diff --git a/grails-plugin-controllers/src/main/groovy/grails/compiler/traits/ControllerTraitInjector.groovy b/grails-plugin-controllers/src/main/groovy/grails/compiler/traits/ControllerTraitInjector.groovy
index fcff50f2ebd..d19db33e5f4 100644
--- a/grails-plugin-controllers/src/main/groovy/grails/compiler/traits/ControllerTraitInjector.groovy
+++ b/grails-plugin-controllers/src/main/groovy/grails/compiler/traits/ControllerTraitInjector.groovy
@@ -18,10 +18,6 @@ package grails.compiler.traits
 import grails.artefact.Controller
 import groovy.transform.CompileStatic
 
-import java.util.regex.Pattern
-
-import org.grails.io.support.GrailsResourceUtils
-
 /**
  *
  * A {@link TraitInjector} that injects controllers with the {@link Controller} trait
@@ -35,19 +31,11 @@ import org.grails.io.support.GrailsResourceUtils
 @CompileStatic
 class ControllerTraitInjector implements TraitInjector {
     
-    static Pattern CONTROLLER_PATTERN = Pattern.compile(".+/" +
-        GrailsResourceUtils.GRAILS_APP_DIR + "/controllers/(.+)Controller\\.groovy");
- 
     @Override
     Class getTrait() {
         Controller
     }
- 
-    @Override
-    boolean shouldInject(URL url) {
-        return url != null && CONTROLLER_PATTERN.matcher(url.getFile()).find();
-    }
- 
+
     @Override
     String[] getArtefactTypes() {
         ['Controller'] as String[]
diff --git a/grails-plugin-domain-class/src/main/groovy/grails/compiler/traits/DomainClassTraitInjector.groovy b/grails-plugin-domain-class/src/main/groovy/grails/compiler/traits/DomainClassTraitInjector.groovy
index 0ce88e4bba7..08dedacbdc0 100644
--- a/grails-plugin-domain-class/src/main/groovy/grails/compiler/traits/DomainClassTraitInjector.groovy
+++ b/grails-plugin-domain-class/src/main/groovy/grails/compiler/traits/DomainClassTraitInjector.groovy
@@ -16,9 +16,7 @@
 package grails.compiler.traits
 
 import grails.artefact.DomainClass
-
 import org.grails.core.artefact.DomainClassArtefactHandler
-import org.grails.io.support.GrailsResourceUtils
 
 /**
  * 
@@ -32,14 +30,9 @@ class DomainClassTraitInjector implements TraitInjector {
         DomainClass
     }
 
-    @Override
-    boolean shouldInject(URL url) {
-        GrailsResourceUtils.isDomainClass(url)
-    }
 
     @Override
     String[] getArtefactTypes() {
         [DomainClassArtefactHandler.TYPE]
     }
-
 }
diff --git a/grails-plugin-interceptors/src/main/groovy/grails/compiler/traits/InterceptorTraitInjector.groovy b/grails-plugin-interceptors/src/main/groovy/grails/compiler/traits/InterceptorTraitInjector.groovy
index 4d1ac733d06..dd6807de704 100644
--- a/grails-plugin-interceptors/src/main/groovy/grails/compiler/traits/InterceptorTraitInjector.groovy
+++ b/grails-plugin-interceptors/src/main/groovy/grails/compiler/traits/InterceptorTraitInjector.groovy
@@ -17,10 +17,6 @@ package grails.compiler.traits
 
 import grails.artefact.Interceptor
 import groovy.transform.CompileStatic
-import org.grails.io.support.GrailsResourceUtils
-
-import java.util.regex.Pattern
-
 
 /**
  * Injects the {@link Interceptor} trait by convention
@@ -31,19 +27,11 @@ import java.util.regex.Pattern
 @CompileStatic
 class InterceptorTraitInjector implements TraitInjector {
 
-    static Pattern INTERCEPTOR_PATTERN = Pattern.compile(".+/" +
-            GrailsResourceUtils.GRAILS_APP_DIR + "/controllers/(.+)Interceptor\\.groovy");
-
     @Override
     Class getTrait() {
         Interceptor
     }
 
-    @Override
-    boolean shouldInject(URL url) {
-        return url != null && INTERCEPTOR_PATTERN.matcher(url.getFile()).find();
-    }
-
     @Override
     String[] getArtefactTypes() {
         ['Interceptor'] as String[]
diff --git a/grails-plugin-services/src/main/groovy/grails/compiler/traits/ServiceTraitInjector.groovy b/grails-plugin-services/src/main/groovy/grails/compiler/traits/ServiceTraitInjector.groovy
index 80953b66afe..10cc478b906 100644
--- a/grails-plugin-services/src/main/groovy/grails/compiler/traits/ServiceTraitInjector.groovy
+++ b/grails-plugin-services/src/main/groovy/grails/compiler/traits/ServiceTraitInjector.groovy
@@ -17,10 +17,6 @@
 package grails.compiler.traits
 
 import grails.artefact.Service
-import org.grails.io.support.GrailsResourceUtils
-
-import java.util.regex.Pattern
-
 
 /**
  * A {@link TraitInjector} for services
@@ -30,19 +26,11 @@ import java.util.regex.Pattern
  */
 class ServiceTraitInjector implements TraitInjector {
 
-    static Pattern SERVICE_PATTERN = Pattern.compile(".+/" +
-            GrailsResourceUtils.GRAILS_APP_DIR + "/services/(.+)Service\\.groovy");
-
     @Override
     Class getTrait() {
         Service
     }
 
-    @Override
-    boolean shouldInject(URL url) {
-        return url != null && SERVICE_PATTERN.matcher(url.getFile()).find();
-    }
-
     @Override
     String[] getArtefactTypes() {
         ['Service'] as String[]
diff --git a/grails-web-databinding/src/main/groovy/grails/compiler/traits/WebDataBindingTraitInjector.groovy b/grails-web-databinding/src/main/groovy/grails/compiler/traits/WebDataBindingTraitInjector.groovy
index 9a974f5e8b8..2ab75745cb0 100644
--- a/grails-web-databinding/src/main/groovy/grails/compiler/traits/WebDataBindingTraitInjector.groovy
+++ b/grails-web-databinding/src/main/groovy/grails/compiler/traits/WebDataBindingTraitInjector.groovy
@@ -16,9 +16,7 @@
 package grails.compiler.traits
 
 import grails.web.databinding.WebDataBinding
-
 import org.grails.core.artefact.DomainClassArtefactHandler
-import org.grails.io.support.GrailsResourceUtils
 
 /**
  * 
@@ -32,11 +30,6 @@ class WebDataBindingTraitInjector implements TraitInjector {
         WebDataBinding
     }
 
-    @Override
-    boolean shouldInject(URL url) {
-        GrailsResourceUtils.isDomainClass(url)
-    }
-
     @Override
     String[] getArtefactTypes() {
         [DomainClassArtefactHandler.TYPE]
diff --git a/grails-web-taglib/src/main/groovy/grails/compiler/traits/TagLibraryTraitInjector.groovy b/grails-web-taglib/src/main/groovy/grails/compiler/traits/TagLibraryTraitInjector.groovy
index 935dbdd185a..2b626b52fc7 100644
--- a/grails-web-taglib/src/main/groovy/grails/compiler/traits/TagLibraryTraitInjector.groovy
+++ b/grails-web-taglib/src/main/groovy/grails/compiler/traits/TagLibraryTraitInjector.groovy
@@ -17,10 +17,6 @@ package grails.compiler.traits
 
 import grails.artefact.TagLibrary
 
-import java.util.regex.Pattern
-
-import org.grails.io.support.GrailsResourceUtils
-
 /**
  * 
  * @since 3.0
@@ -29,19 +25,11 @@ import org.grails.io.support.GrailsResourceUtils
  */
 class TagLibraryTraitInjector implements TraitInjector {
     
-    static Pattern TAGLIB_PATTERN = Pattern.compile(".+/" +
-        GrailsResourceUtils.GRAILS_APP_DIR + "/taglib/(.+)TagLib\\.groovy")
- 
     @Override
     Class getTrait() {
         TagLibrary
     }
- 
-    @Override
-    boolean shouldInject(URL url) {
-        return url != null && TAGLIB_PATTERN.matcher(url.getFile()).find();
-    }
- 
+
     @Override
     String[] getArtefactTypes() {
         ['TagLibrary', 'TagLib'] as String[]