NullPointerException in deep parts of Window Tester

[sazaju]

Hi,

I have followed the steps of the official SWT example (here) and have had some classes not found (more than the quoted ones at the end of the example). I have looked for the corresponding JARs over the Web and it have progressed... until I reach this error :

Code: Select all

com.windowtester.runtime.swt.internal.widgets.SWTUIException: Exception occurred on the SWT UI Thread
   at com.windowtester.runtime.swt.internal.widgets.SWTUIExecutor.run(SWTUIExecutor.java:101)
   at com.windowtester.runtime.swt.internal.widgets.DisplayReference.execute(DisplayReference.java:121)
   at com.windowtester.runtime.swt.internal.widgets.DisplayReference.execute(DisplayReference.java:100)
   at com.windowtester.runtime.swt.internal.widgets.finder.SWTWidgetFinder.doFindAll(SWTWidgetFinder.java:106)
   at com.windowtester.runtime.swt.internal.widgets.finder.SWTWidgetFinder.findAll(SWTWidgetFinder.java:100)
   at com.windowtester.runtime.swt.locator.SWTWidgetLocator.findAll(SWTWidgetLocator.java:302)
   at com.windowtester.runtime.swt.internal.UIContextSWT.findAll(UIContextSWT.java:631)
   at com.windowtester.runtime.swt.internal.UIContextSWT.find(UIContextSWT.java:546)
   at com.windowtester.internal.runtime.selector.ClickHelper.doFind(ClickHelper.java:187)
   at com.windowtester.internal.runtime.selector.ClickHelper.click(ClickHelper.java:52)
   at com.windowtester.internal.runtime.UIContextCommon.click(UIContextCommon.java:140)
   at com.windowtester.runtime.swt.internal.UIContextSWT.click(UIContextSWT.java:325)
   at com.windowtester.internal.runtime.UIContextCommon.click(UIContextCommon.java:133)
   at com.windowtester.runtime.swt.internal.UIContextSWT.click(UIContextSWT.java:333)
   at com.windowtester.internal.runtime.UIContextCommon.click(UIContextCommon.java:126)
   at com.windowtester.runtime.swt.internal.UIContextSWT.click(UIContextSWT.java:295)
   at com.demo.SampleTest.testTest1(SampleTest.java:23)
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
   at java.lang.reflect.Method.invoke(Unknown Source)
   at junit.framework.TestCase.runTest(TestCase.java:164)
   at junit.framework.TestCase.runBare(TestCase.java:130)
   at com.windowtester.runtime.common.UITestCaseCommon.access$0(UITestCaseCommon.java:1)
   at com.windowtester.runtime.common.UITestCaseCommon$2.run(UITestCaseCommon.java:130)
   at com.windowtester.runtime.common.UITestCaseCommon$3.run(UITestCaseCommon.java:151)
   at com.windowtester.internal.runtime.junit.core.SequenceRunner$1.run(SequenceRunner.java:40)
Caused by: com.windowtester.runtime.swt.internal.widgets.SWTUIException: Exception occurred on the SWT UI Thread
   at com.windowtester.runtime.swt.internal.widgets.SWTUIExecutor.run(SWTUIExecutor.java:101)
   at com.windowtester.runtime.swt.internal.widgets.DisplayReference.execute(DisplayReference.java:121)
   at com.windowtester.runtime.swt.internal.widgets.DisplayReference.execute(DisplayReference.java:100)
   at com.windowtester.runtime.swt.internal.widgets.CompositeReference.getChildControls(CompositeReference.java:22)
   at com.windowtester.runtime.swt.internal.widgets.CompositeReference.setChildren(CompositeReference.java:31)
   at com.windowtester.runtime.swt.internal.widgets.DecorationsReference.setChildren(DecorationsReference.java:64)
   at com.windowtester.runtime.swt.internal.widgets.SWTWidgetReference$1.call(SWTWidgetReference.java:111)
   at com.windowtester.runtime.swt.internal.SWTUtils.safeExec(SWTUtils.java:58)
   at com.windowtester.runtime.swt.internal.widgets.SWTWidgetReference.getChildren(SWTWidgetReference.java:108)
   at com.windowtester.runtime.swt.internal.widgets.SWTWidgetReference.accept(SWTWidgetReference.java:296)
   at com.windowtester.runtime.swt.internal.widgets.finder.MatchCollector.findMatchesIn(MatchCollector.java:55)
   at com.windowtester.runtime.swt.internal.widgets.SWTWidgetReference.findWidgets(SWTWidgetReference.java:285)
   at com.windowtester.runtime.swt.internal.widgets.finder.SWTWidgetFinder$1.call(SWTWidgetFinder.java:112)
   at com.windowtester.runtime.swt.internal.widgets.finder.SWTWidgetFinder$1.call(SWTWidgetFinder.java:1)
   at com.windowtester.runtime.swt.internal.widgets.SWTUIExecutor.execute(SWTUIExecutor.java:132)
   at com.windowtester.runtime.swt.internal.widgets.SWTUIExecutor.access$0(SWTUIExecutor.java:130)
   at com.windowtester.runtime.swt.internal.widgets.SWTUIExecutor$1.run(SWTUIExecutor.java:91)
   at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
   at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:134)
   at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:4041)
   at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3660)
   at com.demo.AddressBookUI.main(AddressBookUI.java:135)
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
   at java.lang.reflect.Method.invoke(Unknown Source)
   at com.windowtester.internal.runtime.junit.core.launcher.LauncherFactory$MainRunner$1.run(LauncherFactory.java:121)
   at com.windowtester.internal.runtime.junit.core.launcher.LauncherFactory$SeparateThreadLauncher$1.run(LauncherFactory.java:90)
   at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.RuntimeException: Failed to create widget reference for instance of org.eclipse.swt.widgets.Button
   WindowTester: 201009131510 - win32,win32,x86
   factory: com.windowtester.runtime.internal.factory.WTRuntimeFactoryReference$1@1b60280
   at com.windowtester.runtime.internal.factory.WTRuntimeManager.createReference(WTRuntimeManager.java:95)
   at com.windowtester.runtime.internal.factory.WTRuntimeManager.asReference(WTRuntimeManager.java:36)
   at com.windowtester.runtime.swt.internal.widgets.SWTWidgetReference.forWidget(SWTWidgetReference.java:315)
   at com.windowtester.runtime.swt.internal.widgets.SWTWidgetReference.asControlReferences(SWTWidgetReference.java:234)
   at com.windowtester.runtime.swt.internal.widgets.CompositeReference$1.call(CompositeReference.java:24)
   at com.windowtester.runtime.swt.internal.widgets.CompositeReference$1.call(CompositeReference.java:1)
   at com.windowtester.runtime.swt.internal.widgets.SWTUIExecutor.execute(SWTUIExecutor.java:132)
   at com.windowtester.runtime.swt.internal.widgets.SWTUIExecutor.run(SWTUIExecutor.java:87)
   ... 28 more

This is the trace of the JUnit execution, and on the console I get this one :

Code: Select all

java.lang.NullPointerException
   at com.windowtester.runtime.internal.factory.WTRuntimeFactoryReferenceJava.createFactory(WTRuntimeFactoryReferenceJava.java:185)
   at com.windowtester.runtime.internal.factory.WTRuntimeFactoryReference.getFactory(WTRuntimeFactoryReference.java:70)
   at com.windowtester.runtime.internal.factory.WTRuntimeFactoryReference.createReference(WTRuntimeFactoryReference.java:57)
   at com.windowtester.runtime.internal.factory.WTRuntimeManager.createReference(WTRuntimeManager.java:87)
   at com.windowtester.runtime.internal.factory.WTRuntimeManager.asReference(WTRuntimeManager.java:36)
   at com.windowtester.runtime.swt.internal.widgets.SWTWidgetReference.forWidget(SWTWidgetReference.java:315)
   at com.windowtester.runtime.swt.internal.widgets.SWTWidgetReference.asControlReferences(SWTWidgetReference.java:234)
   at com.windowtester.runtime.swt.internal.widgets.CompositeReference$1.call(CompositeReference.java:24)
   at com.windowtester.runtime.swt.internal.widgets.CompositeReference$1.call(CompositeReference.java:1)
   at com.windowtester.runtime.swt.internal.widgets.SWTUIExecutor.execute(SWTUIExecutor.java:132)
   at com.windowtester.runtime.swt.internal.widgets.SWTUIExecutor.run(SWTUIExecutor.java:87)
   at com.windowtester.runtime.swt.internal.widgets.DisplayReference.execute(DisplayReference.java:121)
   at com.windowtester.runtime.swt.internal.widgets.DisplayReference.execute(DisplayReference.java:100)
   at com.windowtester.runtime.swt.internal.widgets.CompositeReference.getChildControls(CompositeReference.java:22)
   at com.windowtester.runtime.swt.internal.widgets.CompositeReference.setChildren(CompositeReference.java:31)
   at com.windowtester.runtime.swt.internal.widgets.DecorationsReference.setChildren(DecorationsReference.java:64)
   at com.windowtester.runtime.swt.internal.widgets.SWTWidgetReference$1.call(SWTWidgetReference.java:111)
   at com.windowtester.runtime.swt.internal.SWTUtils.safeExec(SWTUtils.java:58)
   at com.windowtester.runtime.swt.internal.widgets.SWTWidgetReference.getChildren(SWTWidgetReference.java:108)
   at com.windowtester.runtime.swt.internal.widgets.SWTWidgetReference.accept(SWTWidgetReference.java:296)
   at com.windowtester.runtime.swt.internal.widgets.finder.MatchCollector.findMatchesIn(MatchCollector.java:55)
   at com.windowtester.runtime.swt.internal.widgets.SWTWidgetReference.findWidgets(SWTWidgetReference.java:285)
   at com.windowtester.runtime.swt.internal.widgets.finder.SWTWidgetFinder$1.call(SWTWidgetFinder.java:112)
   at com.windowtester.runtime.swt.internal.widgets.finder.SWTWidgetFinder$1.call(SWTWidgetFinder.java:1)
   at com.windowtester.runtime.swt.internal.widgets.SWTUIExecutor.execute(SWTUIExecutor.java:132)
   at com.windowtester.runtime.swt.internal.widgets.SWTUIExecutor.access$0(SWTUIExecutor.java:130)
   at com.windowtester.runtime.swt.internal.widgets.SWTUIExecutor$1.run(SWTUIExecutor.java:91)
   at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
   at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:134)
   at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:4041)
   at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3660)
   at com.demo.AddressBookUI.main(AddressBookUI.java:135)
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
   at java.lang.reflect.Method.invoke(Unknown Source)
   at com.windowtester.internal.runtime.junit.core.launcher.LauncherFactory$MainRunner$1.run(LauncherFactory.java:121)
   at com.windowtester.internal.runtime.junit.core.launcher.LauncherFactory$SeparateThreadLauncher$1.run(LauncherFactory.java:90)
   at java.lang.Thread.run(Unknown Source)

What do you think about it ?

If it can help, I have tried the Swing sample and it was impossible to generate any test, as the application stops immediately after the launch of the recording (stopping the recording itself). This problem is only in recording mode, The application run well alone (I have tried with another Swing app and it is the same). I have tried it on 2 different computers (Windows 7 64bits + Windows XP 32bits), with Eclipse 3.6 & JDK 1.6.

[gnebling]

Sounds like an installation/configuration issue. Please note that WindowTester does not support 64bits.
Do you get the SWT error when recording or during playback?

Try to add the following jar files to your Test project's classpath:
wt-win32-win32-x86.jar under com.windowtester.swt.runtime.win32.win32.x86
org.eclipse.swt.win32.win32.x86
org.eclipse.ui.workbench

If that doesn't help and if you haven't tried already, please try with a fresh install of Eclipse.

[sazaju]

Sorry for the late, some network access problems {'^_^}.

I have already added these JARs (because of this problem). Moreother, as detailed above, this problem concerns also 32 bits architecture. On both machines it was done on a fresh Eclipse installation (the Java EE version downloaded here).

The SWT error occurs on the playback, recording just work well, here is the test generated :

Code: Select all

package com.demo;

import com.windowtester.runtime.swt.UITestCaseSWT;
import com.windowtester.runtime.swt.locator.LabeledTextLocator;
import com.windowtester.runtime.IUIContext;
import com.windowtester.runtime.WT;
import com.windowtester.runtime.swt.locator.ShellLocator;

public class SampleTest extends UITestCaseSWT {

   /**
    * Create an Instance
    */
   public SampleTest() {
      super(com.demo.AddressBookUI.class);
   }

   /**
    * Main test method.
    */
   public void testSampleTest() throws Exception {
      IUIContext ui = getUI();
      ui.click(new LabeledTextLocator("First Name:"));
      ui.enterText("aze");
      ui.keyClick(WT.TAB);
      ui.enterText("sdf");
      ui.ensureThat(new ShellLocator("Address Book").isClosed());
   }
}

[sazaju]

Is the source code of WindowTester available ? So I can see exactly what is the error.

[gnebling]

I tried the exact same thing using Eclipse for Java EE SR2 on WinXP machine and after adding the missing jars, the playback worked. Here is a screenshot of the jars I added. In addition to the files mentioned in the previous posting, I also added the org.eclipse.ui.forms jar. See if we have the exact same files.

[gnebling]

Is the source code of WindowTester available ?

No

[sazaju]

Yes it works ! {^_^}b

My error was to put the JARs in the classpath of the running configuration instead of the project, more exactly in the Bootstrap entries.


Thank you very much {^_^}.

[gnebling]

You're welcome. Glad that works.