diff --git a/platform/editor-ui-api/api-dump.txt b/platform/editor-ui-api/api-dump.txt
index 6ffa5012c3d1..9f9df5fbc64a 100644
--- a/platform/editor-ui-api/api-dump.txt
+++ b/platform/editor-ui-api/api-dump.txt
@@ -2689,12 +2689,12 @@ a:com.intellij.openapi.ide.CopyPasteManager
 - a:getContents(java.awt.datatransfer.DataFlavor):java.lang.Object
 - s:getCutColor():java.awt.Color
 - s:getInstance():com.intellij.openapi.ide.CopyPasteManager
-- a:getSystemSelectionContents():java.awt.datatransfer.Transferable
+- getSystemSelectionContents():java.awt.datatransfer.Transferable
 - a:isCutElement(java.lang.Object):Z
-- a:isSystemSelectionSupported():Z
+- isSystemSelectionSupported():Z
 - a:removeContentChangedListener(com.intellij.openapi.ide.CopyPasteManager$ContentChangedListener):V
 - a:setContents(java.awt.datatransfer.Transferable):V
-- a:setSystemSelectionContents(java.awt.datatransfer.Transferable):V
+- setSystemSelectionContents(java.awt.datatransfer.Transferable):V
 - a:stopKillRings():V
 - a:stopKillRings(com.intellij.openapi.editor.Document):V
 com.intellij.openapi.ide.CopyPasteManager$ContentChangedListener
diff --git a/platform/editor-ui-api/src/com/intellij/openapi/ide/CopyPasteManager.java b/platform/editor-ui-api/src/com/intellij/openapi/ide/CopyPasteManager.java
index ba9fc1a20e30..1b35a179251e 100644
--- a/platform/editor-ui-api/src/com/intellij/openapi/ide/CopyPasteManager.java
+++ b/platform/editor-ui-api/src/com/intellij/openapi/ide/CopyPasteManager.java
@@ -78,18 +78,22 @@ public abstract class CopyPasteManager {
   /**
    * Tells whether {@linkplain Toolkit#getSystemSelection() system selection} is supported in the current system.
    */
-  public abstract boolean isSystemSelectionSupported();
+  public boolean isSystemSelectionSupported() {
+    return false;
+  }
 
   /**
    * Returns current system selection contents, or {@code null} if system selection has no contents, or if it's
    * {@linkplain #isSystemSelectionSupported() not supported}.
    */
-  public abstract @Nullable Transferable getSystemSelectionContents();
+  public @Nullable Transferable getSystemSelectionContents() {
+    return null;
+  }
 
   /**
    * Sets current system selection contents. Does nothing if system selection is {@linkplain #isSystemSelectionSupported() not supported}.
    */
-  public abstract void setSystemSelectionContents(@NotNull Transferable content);
+  public void setSystemSelectionContents(@NotNull Transferable content) {}
 
   public interface ContentChangedListener extends EventListener {
     void contentChanged(final @Nullable Transferable oldTransferable, final Transferable newTransferable);