/*
 * Copyright 2000-2015 JetBrains s.r.o.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.intellij.util.ui.components;

import com.intellij.ui.components.JBPanel;
import com.intellij.util.ui.JBUI;

import java.awt.*;

/**
 * @author Konstantin Bulenkov
 */
public class BorderLayoutPanel extends JBPanel<BorderLayoutPanel> {
  public BorderLayoutPanel() {
    this(0, 0);
  }

  public BorderLayoutPanel(int hgap, int vgap) {
    super(new BorderLayout(JBUI.scale(hgap), JBUI.scale(vgap)));
  }

  public BorderLayoutPanel addToCenter(Component comp) {
    add(comp, BorderLayout.CENTER);
    return this;
  }

  public BorderLayoutPanel addToRight(Component comp) {
    add(comp, BorderLayout.EAST);
    return this;
  }

  public BorderLayoutPanel addToLeft(Component comp) {
    add(comp, BorderLayout.WEST);
    return this;
  }

  public BorderLayoutPanel addToTop(Component comp) {
    add(comp, BorderLayout.NORTH);
    return this;
  }

  public BorderLayoutPanel addToBottom(Component comp) {
    add(comp, BorderLayout.SOUTH);
    return this;
  }
}

@@ -712,16 +712,58 @@
 ui.JBUI;
+%0Aimport org.jetbrains.annotations.NotNull;
 %0A%0Aimport
@@ -1046,32 +1046,43 @@
 e(vgap)));%0A  %7D%0A%0A
+  @NotNull%0A
   public BorderL
@@ -1104,16 +1104,25 @@
 oCenter(
+@NotNull 
 Componen
@@ -1181,32 +1181,43 @@
 turn this;%0A  %7D%0A%0A
+  @NotNull%0A
   public BorderL
@@ -1238,16 +1238,25 @@
 ToRight(
+@NotNull 
 Componen
@@ -1313,32 +1313,43 @@
 turn this;%0A  %7D%0A%0A
+  @NotNull%0A
   public BorderL
@@ -1369,16 +1369,25 @@
 dToLeft(
+@NotNull 
 Componen
@@ -1444,32 +1444,43 @@
 turn this;%0A  %7D%0A%0A
+  @NotNull%0A
   public BorderL
@@ -1499,16 +1499,25 @@
 ddToTop(
+@NotNull 
 Componen
@@ -1579,24 +1579,35 @@
  this;%0A  %7D%0A%0A
+  @NotNull%0A
   public Bor
@@ -1633,16 +1633,25 @@
 oBottom(
+@NotNull 
 Componen

Add NotNulls