diff --git a/core/src/main/java/hudson/model/ModifiableViewGroup.java b/core/src/main/java/hudson/model/ModifiableViewGroup.java
index 6a2542af38..4ec97000b3 100644
--- a/core/src/main/java/hudson/model/ModifiableViewGroup.java
+++ b/core/src/main/java/hudson/model/ModifiableViewGroup.java
@@ -38,5 +38,5 @@ public interface ModifiableViewGroup extends ViewGroup {
     /**
      * Add new {@link View} to this {@link ViewGroup}.
      */
-    public void addView(@Nonnull View view) throws IOException;
+    void addView(@Nonnull View view) throws IOException;
 }
diff --git a/core/src/main/java/jenkins/model/ModelObjectWithChildren.java b/core/src/main/java/jenkins/model/ModelObjectWithChildren.java
index 4d3fe475d2..c8d544e03e 100644
--- a/core/src/main/java/jenkins/model/ModelObjectWithChildren.java
+++ b/core/src/main/java/jenkins/model/ModelObjectWithChildren.java
@@ -20,5 +20,5 @@ public interface ModelObjectWithChildren extends ModelObject {
     /**
      * Generates the context menu to list up all the children.
      */
-    public ContextMenu doChildrenContextMenu(StaplerRequest request, StaplerResponse response) throws Exception;
+    ContextMenu doChildrenContextMenu(StaplerRequest request, StaplerResponse response) throws Exception;
 }
diff --git a/core/src/main/java/jenkins/model/ModelObjectWithContextMenu.java b/core/src/main/java/jenkins/model/ModelObjectWithContextMenu.java
index 5b450a0c97..3073ebb84d 100644
--- a/core/src/main/java/jenkins/model/ModelObjectWithContextMenu.java
+++ b/core/src/main/java/jenkins/model/ModelObjectWithContextMenu.java
@@ -53,7 +53,7 @@ public interface ModelObjectWithContextMenu extends ModelObject {
      * which implements the default behaviour. See {@link ContextMenu#from(ModelObjectWithContextMenu, StaplerRequest, StaplerResponse)}
      * for more details of what it does. This should suit most implementations.
      */
-    public ContextMenu doContextMenu(StaplerRequest request, StaplerResponse response) throws Exception;
+    ContextMenu doContextMenu(StaplerRequest request, StaplerResponse response) throws Exception;
 
     /**
      * Data object that represents the context menu.
@@ -61,7 +61,7 @@ public interface ModelObjectWithContextMenu extends ModelObject {
      * Via {@link HttpResponse}, this class is capable of converting itself to JSON that {@code <l:breadcrumb/>} understands.
      */
     @ExportedBean
-    public class ContextMenu implements HttpResponse {
+    class ContextMenu implements HttpResponse {
         /**
          * The actual contents of the menu.
          */
@@ -225,7 +225,7 @@ public interface ModelObjectWithContextMenu extends ModelObject {
      * Menu item in {@link ContextMenu}
      */
     @ExportedBean
-    public class MenuItem {
+    class MenuItem {
         /**
          * Target of the link.
          *
diff --git a/core/src/main/java/jenkins/security/CustomClassFilter.java b/core/src/main/java/jenkins/security/CustomClassFilter.java
index f73068f097..979f0d8e7a 100644
--- a/core/src/main/java/jenkins/security/CustomClassFilter.java
+++ b/core/src/main/java/jenkins/security/CustomClassFilter.java
@@ -84,7 +84,7 @@ public interface CustomClassFilter extends ExtensionPoint {
      */
     @Restricted(NoExternalUse.class)
     @Extension
-    public class Static implements CustomClassFilter {
+    class Static implements CustomClassFilter {
 
         /**
          * Map from {@link Class#getName} to true to permit, false to reject.
@@ -132,7 +132,7 @@ public interface CustomClassFilter extends ExtensionPoint {
      */
     @Restricted(NoExternalUse.class)
     @Extension
-    public class Contributed implements CustomClassFilter {
+    class Contributed implements CustomClassFilter {
 
         /**
          * Map from {@link Class#getName} to true to permit, false to reject.
diff --git a/core/src/main/java/jenkins/tasks/SimpleBuildStep.java b/core/src/main/java/jenkins/tasks/SimpleBuildStep.java
index 83a6c5a9ce..5482dff279 100644
--- a/core/src/main/java/jenkins/tasks/SimpleBuildStep.java
+++ b/core/src/main/java/jenkins/tasks/SimpleBuildStep.java
@@ -105,7 +105,7 @@ public interface SimpleBuildStep extends BuildStep {
     @SuppressWarnings("rawtypes")
     @Restricted(NoExternalUse.class)
     @Extension
-    public static final class LastBuildActionFactory extends TransientActionFactory<Job> {
+    final class LastBuildActionFactory extends TransientActionFactory<Job> {
 
         @Override
         public Class<Job> type() {