8060137: Removing Text from TextField / TextArea is not possible after typing

Reviewed-by: ssadetsky, psadhukhan

jdk/src/java.desktop/share/classes/java/awt/TextComponent.java

@@ -229,15 +229,21 @@ public class TextComponent extends Component implements Accessible {
      * @see         java.awt.TextComponent#getText
      */
     public synchronized void setText(String t) {
-        boolean skipTextEvent = (text == null || text.isEmpty())
-                && (t == null || t.isEmpty());
-        text = (t != null) ? t : "";
+        if (t == null) {
+            t = "";
+        }
         TextComponentPeer peer = (TextComponentPeer)this.peer;
-        // Please note that we do not want to post an event
-        // if TextArea.setText() or TextField.setText() replaces an empty text
-        // by an empty text, that is, if component's text remains unchanged.
-        if (peer != null && !skipTextEvent) {
-            peer.setText(text);
+        if (peer != null) {
+            text = peer.getText();
+            // Please note that we do not want to post an event
+            // if TextArea.setText() or TextField.setText() replaces text
+            // by same text, that is, if component's text remains unchanged.
+            if (!t.equals(text)) {
+                text = t;
+                peer.setText(text);
+            }
+        } else {
+            text = t;
         }
     }
 

jdk/test/java/awt/TextArea/TextAreaEditing/TextAreaEditing.java

@@ -23,16 +23,23 @@
 
 /*
  @test
- @bug 8040322
+ @bug 8040322 8060137
+ @library ../../regtesthelpers
+ @build Util
  @summary Test TextArea APIs replaceRange, insert, append & setText
  @run main TextAreaEditing
  */
 
 import java.awt.Frame;
+import java.awt.Robot;
 import java.awt.TextArea;
+import java.awt.AWTException;
+import java.awt.event.KeyEvent;
+import test.java.awt.regtesthelpers.Util;
 
 public class TextAreaEditing {
 
+    final static Robot robot = Util.createRobot();
     private int testFailCount;
     private boolean isTestFail;
     private StringBuilder testFailMessage;
@@ -61,6 +68,7 @@ public class TextAreaEditing {
         textArea.testReplaceRange();
         textArea.testInsert();
         textArea.testAppend();
+        textArea.testSetText();
         textArea.checkFailures();
         textArea.dispose();
     }
@@ -119,6 +127,24 @@ public class TextAreaEditing {
         checkTest("");
     }
 
+    private void testSetText() {
+        textArea.setText(null);
+        textArea.requestFocus();
+        Util.clickOnComp(textArea, robot);
+        Util.waitForIdle(robot);
+        robot.keyPress(KeyEvent.VK_A);
+        robot.delay(5);
+        robot.keyRelease(KeyEvent.VK_A);
+        Util.waitForIdle(robot);
+        textArea.setText(null);
+        checkTest("");
+        textArea.setText("CaseSensitive");
+        checkTest("CaseSensitive");
+        textArea.setText("caseSensitive");
+        checkTest("caseSensitive");
+
+    }
+
     private void checkTest(String str) {
         if (str != null && !str.equals(textArea.getText())) {
             testFailMessage.append("TestFail line : ");

jdk/test/java/awt/TextField/TextFieldEditing/TextFieldEditing.java

@@ -0,0 +1,113 @@
+/*
+ * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/*
+ @test
+ @bug 8060137
+ @library ../../regtesthelpers
+ @build Util
+ @summary Test TextField setText API
+ @run main TextFieldEditing
+ */
+
+import java.awt.Frame;
+import java.awt.Robot;
+import java.awt.TextField;
+import java.awt.AWTException;
+import java.awt.event.KeyEvent;
+import test.java.awt.regtesthelpers.Util;
+
+public class TextFieldEditing {
+
+    final static Robot robot = Util.createRobot();
+    private int testFailCount;
+    private boolean isTestFail;
+    private StringBuilder testFailMessage;
+
+    private Frame mainFrame;
+    private TextField textField;
+
+    private TextFieldEditing() {
+        testFailMessage = new StringBuilder();
+        mainFrame = new Frame();
+        mainFrame.setSize(200, 200);
+
+        textField = new TextField();
+        mainFrame.add(textField);
+        mainFrame.setVisible(true);
+    }
+
+    private void dispose() {
+        if (mainFrame != null) {
+            mainFrame.dispose();
+        }
+    }
+
+    public static void main(String[] s) {
+        TextFieldEditing textField = new TextFieldEditing();
+        textField.testSetText();
+        textField.checkFailures();
+        textField.dispose();
+    }
+
+    private void testSetText() {
+        textField.setText(null);
+        textField.requestFocus();
+        Util.clickOnComp(textField, robot);
+        Util.waitForIdle(robot);
+        robot.keyPress(KeyEvent.VK_A);
+        robot.delay(5);
+        robot.keyRelease(KeyEvent.VK_A);
+        Util.waitForIdle(robot);
+        textField.setText(null);
+        checkTest("");
+        textField.setText("CaseSensitive");
+        checkTest("CaseSensitive");
+        textField.setText("caseSensitive");
+        checkTest("caseSensitive");
+    }
+
+    private void checkTest(String str) {
+        if (str != null && !str.equals(textField.getText())) {
+            testFailMessage.append("TestFail line : ");
+            testFailMessage.append(Thread.currentThread().getStackTrace()[2].
+                    getLineNumber());
+            testFailMessage.append(" TextField string : \"");
+            testFailMessage.append(textField.getText());
+            testFailMessage.append("\" does not match expected string : \"");
+            testFailMessage.append(str).append("\"");
+            testFailMessage.append(System.getProperty("line.separator"));
+            testFailCount++;
+            isTestFail = true;
+        }
+    }
+
+    private void checkFailures() {
+        if (isTestFail) {
+            testFailMessage.insert(0, "Test Fail count : " + testFailCount
+                    + System.getProperty("line.separator"));
+            dispose();
+            throw new RuntimeException(testFailMessage.toString());
+        }
+    }
+}