diff --git a/plugins/tiles/src/main/java/org/apache/struts2/tiles/StrutsFreeMarkerAttributeRenderer.java b/plugins/tiles/src/main/java/org/apache/struts2/tiles/StrutsFreeMarkerAttributeRenderer.java
index 849053a22..c9491b4db 100644
--- a/plugins/tiles/src/main/java/org/apache/struts2/tiles/StrutsFreeMarkerAttributeRenderer.java
+++ b/plugins/tiles/src/main/java/org/apache/struts2/tiles/StrutsFreeMarkerAttributeRenderer.java
@@ -23,11 +23,11 @@ import com.opensymphony.xwork2.ActionContext;
 import com.opensymphony.xwork2.ActionInvocation;
 import com.opensymphony.xwork2.config.ConfigurationException;
 import com.opensymphony.xwork2.inject.Container;
+import com.opensymphony.xwork2.util.logging.Logger;
+import com.opensymphony.xwork2.util.logging.LoggerFactory;
 import freemarker.ext.beans.BeanModel;
 import freemarker.template.Configuration;
 import freemarker.template.TemplateException;
-import org.apache.logging.log4j.LogManager;
-import org.apache.logging.log4j.Logger;
 import org.apache.struts2.ServletActionContext;
 import org.apache.struts2.views.JspSupportServlet;
 import org.apache.struts2.views.freemarker.FreemarkerManager;
@@ -47,7 +47,7 @@ import java.io.IOException;
 
 public class StrutsFreeMarkerAttributeRenderer extends AbstractTypeDetectingAttributeRenderer {
 
-    private static Logger LOG = LogManager.getLogger(StrutsFreeMarkerAttributeRenderer.class);
+    private static Logger LOG = LoggerFactory.getLogger(StrutsFreeMarkerAttributeRenderer.class);
 
     @Override
     public void write(Object value, Attribute attribute, TilesRequestContext request) throws IOException {
diff --git a/plugins/tiles/src/main/java/org/apache/struts2/tiles/StrutsTilesContainerFactory.java b/plugins/tiles/src/main/java/org/apache/struts2/tiles/StrutsTilesContainerFactory.java
index 1b01a8d4e..b19831392 100644
--- a/plugins/tiles/src/main/java/org/apache/struts2/tiles/StrutsTilesContainerFactory.java
+++ b/plugins/tiles/src/main/java/org/apache/struts2/tiles/StrutsTilesContainerFactory.java
@@ -181,7 +181,7 @@ public class StrutsTilesContainerFactory extends BasicTilesContainerFactory {
         DefinitionPatternMatcherFactory wildcardFactory = new WildcardDefinitionPatternMatcherFactory();
         DefinitionPatternMatcherFactory regexpFactory = new RegexpDefinitionPatternMatcherFactory();
 
-        PrefixedPatternDefinitionResolver<T> resolver = new PrefixedPatternDefinitionResolver<>();
+        PrefixedPatternDefinitionResolver<T> resolver = new PrefixedPatternDefinitionResolver<T>();
         resolver.registerDefinitionPatternMatcherFactory(PATTERN_WILDCARD, wildcardFactory);
         resolver.registerDefinitionPatternMatcherFactory(PATTERN_REGEXP, regexpFactory);
 
@@ -192,7 +192,7 @@ public class StrutsTilesContainerFactory extends BasicTilesContainerFactory {
     protected List<URL> getSourceURLs(TilesApplicationContext applicationContext,
                                       TilesRequestContextFactory contextFactory) {
         try {
-            Set<URL> finalSet = new HashSet<>();
+            Set<URL> finalSet = new HashSet<URL>();
             Set<URL> webINFSet = applicationContext.getResources("/WEB-INF/**/tiles*.xml");
             Set<URL> metaINFSet = applicationContext.getResources("classpath*:META-INF/**/tiles*.xml");
 
@@ -239,24 +239,24 @@ public class StrutsTilesContainerFactory extends BasicTilesContainerFactory {
             PropertyAccessor objectPropertyAccessor = OgnlRuntime.getPropertyAccessor(Object.class);
             PropertyAccessor mapPropertyAccessor = OgnlRuntime.getPropertyAccessor(Map.class);
             PropertyAccessor applicationContextPropertyAccessor =
-                    new NestedObjectDelegatePropertyAccessor<>(
+                    new NestedObjectDelegatePropertyAccessor<TilesRequestContext>(
                             new TilesApplicationContextNestedObjectExtractor(),
                             objectPropertyAccessor);
             PropertyAccessor requestScopePropertyAccessor =
-                    new NestedObjectDelegatePropertyAccessor<>(
+                    new NestedObjectDelegatePropertyAccessor<TilesRequestContext>(
                             new RequestScopeNestedObjectExtractor(), mapPropertyAccessor);
             PropertyAccessor sessionScopePropertyAccessor =
-                    new NestedObjectDelegatePropertyAccessor<>(
+                    new NestedObjectDelegatePropertyAccessor<TilesRequestContext>(
                             new SessionScopeNestedObjectExtractor(), mapPropertyAccessor);
             PropertyAccessor applicationScopePropertyAccessor =
-                    new NestedObjectDelegatePropertyAccessor<>(
+                    new NestedObjectDelegatePropertyAccessor<TilesRequestContext>(
                             new ApplicationScopeNestedObjectExtractor(), mapPropertyAccessor);
             PropertyAccessorDelegateFactory<TilesRequestContext> factory =
                     new TilesContextPropertyAccessorDelegateFactory(
                             objectPropertyAccessor, applicationContextPropertyAccessor,
                             requestScopePropertyAccessor, sessionScopePropertyAccessor,
                             applicationScopePropertyAccessor);
-            PropertyAccessor tilesRequestAccessor = new DelegatePropertyAccessor<>(factory);
+            PropertyAccessor tilesRequestAccessor = new DelegatePropertyAccessor<TilesRequestContext>(factory);
             OgnlRuntime.setPropertyAccessor(TilesRequestContext.class, tilesRequestAccessor);
             return new OGNLAttributeEvaluator();
         } catch (OgnlException e) {
diff --git a/plugins/tiles/src/main/java/org/apache/struts2/tiles/StrutsTilesInitializer.java b/plugins/tiles/src/main/java/org/apache/struts2/tiles/StrutsTilesInitializer.java
index b2e2700e8..5df819c2b 100644
--- a/plugins/tiles/src/main/java/org/apache/struts2/tiles/StrutsTilesInitializer.java
+++ b/plugins/tiles/src/main/java/org/apache/struts2/tiles/StrutsTilesInitializer.java
@@ -19,8 +19,8 @@
 
 package org.apache.struts2.tiles;
 
-import org.apache.logging.log4j.LogManager;
-import org.apache.logging.log4j.Logger;
+import com.opensymphony.xwork2.util.logging.Logger;
+import com.opensymphony.xwork2.util.logging.LoggerFactory;
 import org.apache.tiles.TilesApplicationContext;
 import org.apache.tiles.factory.AbstractTilesContainerFactory;
 import org.apache.tiles.servlet.wildcard.WildcardServletTilesApplicationContext;
@@ -30,7 +30,7 @@ import javax.servlet.ServletContext;
 
 public class StrutsTilesInitializer extends AbstractTilesInitializer {
 
-    private static final Logger LOG = LogManager.getLogger(StrutsTilesInitializer.class);
+    private static final Logger LOG = LoggerFactory.getLogger(StrutsTilesInitializer.class);
 
     @Override
     protected TilesApplicationContext createTilesApplicationContext(TilesApplicationContext preliminaryContext) {
diff --git a/plugins/tiles/src/main/java/org/apache/struts2/tiles/StrutsTilesListener.java b/plugins/tiles/src/main/java/org/apache/struts2/tiles/StrutsTilesListener.java
index db422403c..c55a8bfdc 100644
--- a/plugins/tiles/src/main/java/org/apache/struts2/tiles/StrutsTilesListener.java
+++ b/plugins/tiles/src/main/java/org/apache/struts2/tiles/StrutsTilesListener.java
@@ -19,8 +19,8 @@
 
 package org.apache.struts2.tiles;
 
-import org.apache.logging.log4j.LogManager;
-import org.apache.logging.log4j.Logger;
+import com.opensymphony.xwork2.util.logging.Logger;
+import com.opensymphony.xwork2.util.logging.LoggerFactory;
 import org.apache.tiles.startup.TilesInitializer;
 import org.apache.tiles.web.startup.AbstractTilesListener;