diff --git a/platform/core-impl/src/com/intellij/psi/MultiplePsiFilesPerDocumentFileViewProvider.java b/platform/core-impl/src/com/intellij/psi/MultiplePsiFilesPerDocumentFileViewProvider.java
index 5d6fb6f37162..f7541254b3e6 100644
--- a/platform/core-impl/src/com/intellij/psi/MultiplePsiFilesPerDocumentFileViewProvider.java
+++ b/platform/core-impl/src/com/intellij/psi/MultiplePsiFilesPerDocumentFileViewProvider.java
@@ -53,7 +53,7 @@ public abstract class MultiplePsiFilesPerDocumentFileViewProvider extends Abstra
 
   @Override
   @NotNull
-  public final List<PsiFile> getAllFiles() {
+  public List<PsiFile> getAllFiles() {
     final List<PsiFile> roots = new ArrayList<>();
     for (Language language : getLanguages()) {
       PsiFile psi = getPsi(language);
diff --git a/platform/core-impl/src/com/intellij/psi/SingleRootFileViewProvider.java b/platform/core-impl/src/com/intellij/psi/SingleRootFileViewProvider.java
index 8378d32234a4..ee61195d7c18 100644
--- a/platform/core-impl/src/com/intellij/psi/SingleRootFileViewProvider.java
+++ b/platform/core-impl/src/com/intellij/psi/SingleRootFileViewProvider.java
@@ -29,7 +29,6 @@ import com.intellij.openapi.vfs.PersistentFSConstants;
 import com.intellij.openapi.vfs.VirtualFile;
 import com.intellij.psi.impl.DebugUtil;
 import com.intellij.psi.impl.PsiFileEx;
-import com.intellij.psi.impl.file.impl.FileManager;
 import com.intellij.psi.impl.source.PsiFileImpl;
 import com.intellij.psi.impl.source.tree.FileElement;
 import com.intellij.psi.util.PsiUtilCore;
@@ -106,12 +105,12 @@ public class SingleRootFileViewProvider extends AbstractFileViewProvider impleme
 
   @Override
   @NotNull
-  public final List<PsiFile> getAllFiles() {
+  public List<PsiFile> getAllFiles() {
     return ContainerUtil.createMaybeSingletonList(getPsi(getBaseLanguage()));
   }
 
   @Nullable
-  protected final PsiFile getPsiInner(@NotNull Language target) {
+  protected PsiFile getPsiInner(@NotNull Language target) {
     if (target != getBaseLanguage()) {
       return null;
     }