NullPointerException when run testcase

[seven...@gmail.com]

Dear All

i am researching eclipselibrary, i follow the steps in the wiki. but i get a NullPointerException error.

my testing project

5 files in the lib directory

#my testing application, just a frame with button,  created by SWT

AbsoluteLayout.jar                                

GUIFormExamples.jar           

swt-debug.jar  

      

#robot+eclipse

robotframework-2.7.7.jar

eclipselibrary-0.18-with-dependencies-swt.jar   

# i also add swtbot libs to this directory, but the error still happen

my swtbot.bat is 

setlocal EnableDelayedExpansion

set classpath=./

for %%f in (./lib/*.jar) do (set classpath=!classpath!;./lib/%%f)

java -Xmx512m -cp %classpath% org.robotframework.RobotFramework --debugfile jybot.log --loglevel DEBUG --outputdir results %* 

my testcase just start a swt application and find the button which have the "Add" name 

<table id="testcases" border="1">

<tr>

<th class="name">Test Case</th>

<th>Action</th>

<th colspan="3">Arguments</th>

</tr>

<tr>

<td class="name"><a name="test_Test Button">Test Button add</a></td>

<td>Set EclipseLibrary Log Level</td>

<td>DEBUG</td>

<td></td>

<td></td>

</tr>

<tr>

<td class="name"></td>

<td>Start Application</td>

<td>examples.NewFrame</td>

<td>-debug -consolelog</td>

<td></td>

</tr>

<tr>

<td class="name"></td>

<td>Find Button</td>

<td>Add</td>

<td></td>

<td></td>

</tr>

</table>

when i run my testcaes  , robot give me a error log

+-- START TEST: Test Button add [ ]

------------------------------------------------------------------------------

+--- START KW: EclipseLibrary.Set Eclipse Library Log Level [ DEBUG ]

+--- END KW: EclipseLibrary.Set Eclipse Library Log Level (15)

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

+--- START KW: EclipseLibrary.Find Button [ Add ]

Instanciation of SWTWorkbenchBot

java.lang.NullPointerException

java.lang.RuntimeException: 

at org.robotframework.javalib.library.AnnotationLibrary.retrieveInnerException(AnnotationLibrary.java:93)

at org.robotframework.javalib.library.AnnotationLibrary.runKeyword(AnnotationLibrary.java:75)

at org.lcx.robotframework.eclipse.EclipseLibrary.runKeyword(EclipseLibrary.java:59)

at robot.run$py.main$3(/home/peke/Devel/robotframework/tmp-jar-dir/Lib/robot/run.py:370)

at robot.run$py.call_function(/home/peke/Devel/robotframework/tmp-jar-dir/Lib/robot/run.py)

at robot.utils.application$py._execute$10(/home/peke/Devel/robotframework/tmp-jar-dir/Lib/robot/utils/application.py:88)

at robot.utils.application$py.call_function(/home/peke/Devel/robotframework/tmp-jar-dir/Lib/robot/utils/application.py)

at robot.utils.application$py.execute_cli$5(/home/peke/Devel/robotframework/tmp-jar-dir/Lib/robot/utils/application.py:45)

at robot.utils.application$py.call_function(/home/peke/Devel/robotframework/tmp-jar-dir/Lib/robot/utils/application.py)

at robot.run$py.run_cli$6(/home/peke/Devel/robotframework/tmp-jar-dir/Lib/robot/run.py:399)

at robot.run$py.call_function(/home/peke/Devel/robotframework/tmp-jar-dir/Lib/robot/run.py)

at robot.jarrunner$py._run$3(/home/peke/Devel/robotframework/tmp-jar-dir/Lib/robot/jarrunner.py:60)

at robot.jarrunner$py.call_function(/home/peke/Devel/robotframework/tmp-jar-dir/Lib/robot/jarrunner.py)

at robot.jarrunner$py.run$2(/home/peke/Devel/robotframework/tmp-jar-dir/Lib/robot/jarrunner.py:53)

at robot.jarrunner$py.call_function(/home/peke/Devel/robotframework/tmp-jar-dir/Lib/robot/jarrunner.py)

at org.robotframework.RobotFramework.run(RobotFramework.java:62)

at org.robotframework.RobotFramework.main(RobotFramework.java:37)

Caused by: org.lcx.robotframework.eclipse.bridge.SWTBotBridgeException: java.lang.NullPointerException

at org.lcx.robotframework.eclipse.bridge.CauseException.generateException(CauseException.java:37)

at org.lcx.robotframework.eclipse.bridge.SWTBotBridge.callMethod(SWTBotBridge.java:133)

at org.lcx.robotframework.swtbot.eclipse.finder.SWTWorkbenchBot.<init>(SWTWorkbenchBot.java:35)

at org.lcx.robotframework.swtbot.eclipse.finder.SWTWorkbenchBot.getSWTWorkbenchBot(SWTWorkbenchBot.java:23)

at org.lcx.robotframework.eclipse.keyword.swtbot.finder.ButtonFinderKeywords.findButton(ButtonFinderKeywords.java:47)

at org.robotframework.javalib.reflection.KeywordInvoker.invoke(KeywordInvoker.java:49)

at org.robotframework.javalib.beans.annotation.AnnotationKeywordExtractor$1.execute(AnnotationKeywordExtractor.java:55)

at org.robotframework.javalib.library.KeywordFactoryBasedLibrary.runKeyword(KeywordFactoryBasedLibrary.java:37)

at org.robotframework.javalib.library.AnnotationLibrary.runKeyword(AnnotationLibrary.java:73)

... 156 more

Caused by: java.lang.NullPointerException

at org.lcx.robotframework.eclipse.bridge.SWTBotBridge.callMethod(SWTBotBridge.java:114)

... 167 more

+--- END KW: EclipseLibrary.Find Button (29)

------------------------------------------------------------------------------

+-- END TEST: Test Button add (62)

 Did i miss some lib?

my system is 

win8 x64

[seven...@gmail.com]

my SWTBot is version >=2.1

the wiki say SWTBot shuld be 2.0.3   https://code.google.com/p/robotframework-eclipselibrary/wiki/Compatibility

Is this the reason?

Beg for help

[seven...@gmail.com]

i debug it by step and found that i lost the keyword "Start SWTBotBridge"

when I add it, there's another error message

Test Case	Action	Arguments
Test Button add	Start Application	examples.NewFrame	-debug -consolelog
	Set EclipseLibrary Log Level	DEBUG
	Sleep	5 seconds
	Start SWTBotBridge
	List All Views Title
	Find Button	Add

13:41:57.906

FAIL

SwtbotPlugin for RF on error

13:41:57.907

DEBUG

java.lang.RuntimeException: at org.robotframework.javalib.library.AnnotationLibrary.retrieveInnerException(AnnotationLibrary.java:93) at org.robotframework.javalib.library.AnnotationLibrary.runKeyword(AnnotationLibrary.java:75) at org.lcx.robotframework.eclipse.EclipseLibrary.runKeyword(EclipseLibrary.java:59) at robot.run$py.main$3(/home/peke/Devel/robotframework/tmp-jar-dir/Lib/robot/run.py:370) at robot.run$py.call_function(/home/peke/Devel/robotframework/tmp-jar-dir/Lib/robot/run.py) at robot.utils.application$py._execute$10(/home/peke/Devel/robotframework/tmp-jar-dir/Lib/robot/utils/application.py:88) at robot.utils.application$py.call_function(/home/peke/Devel/robotframework/tmp-jar-dir/Lib/robot/utils/application.py) at robot.utils.application$py.execute_cli$5(/home/peke/Devel/robotframework/tmp-jar-dir/Lib/robot/utils/application.py:45) at robot.utils.application$py.call_function(/home/peke/Devel/robotframework/tmp-jar-dir/Lib/robot/utils/application.py) at robot.run$py.run_cli$6(/home/peke/Devel/robotframework/tmp-jar-dir/Lib/robot/run.py:399) at robot.run$py.call_function(/home/peke/Devel/robotframework/tmp-jar-dir/Lib/robot/run.py) at robot.jarrunner$py._run$3(/home/peke/Devel/robotframework/tmp-jar-dir/Lib/robot/jarrunner.py:60) at robot.jarrunner$py.call_function(/home/peke/Devel/robotframework/tmp-jar-dir/Lib/robot/jarrunner.py) at robot.jarrunner$py.run$2(/home/peke/Devel/robotframework/tmp-jar-dir/Lib/robot/jarrunner.py:53) at robot.jarrunner$py.call_function(/home/peke/Devel/robotframework/tmp-jar-dir/Lib/robot/jarrunner.py) at org.robotframework.RobotFramework.run(RobotFramework.java:62) at org.robotframework.RobotFramework.main(RobotFramework.java:37) Caused by: org.lcx.robotframework.eclipse.bridge.SWTBotBridgeException: SwtbotPlugin for RF on error at org.lcx.robotframework.eclipse.keyword.launch.StartBridgeKeywords.startSWTBotBridge(StartBridgeKeywords.java:45) at org.robotframework.javalib.reflection.KeywordInvoker.invoke(KeywordInvoker.java:49) at org.robotframework.javalib.beans.annotation.AnnotationKeywordExtractor$1.execute(AnnotationKeywordExtractor.java:55) at org.robotframework.javalib.library.KeywordFactoryBasedLibrary.runKeyword(KeywordFactoryBasedLibrary.java:37) at org.robotframework.javalib.library.AnnotationLibrary.runKeyword(AnnotationLibrary.java:73) ... 144 more Caused by: java.lang.reflect.InvocationTargetException at org.lcx.robotframework.eclipse.keyword.launch.StartBridgeKeywords.startSWTBotBridge(StartBridgeKeywords.java:37) ... 152 more Caused by: java.lang.IllegalStateException: Could not find a display at org.eclipse.swtbot.swt.finder.utils.SWTUtils.display(SWTUtils.java:249) at org.eclipse.swtbot.swt.finder.finders.ControlFinder.<init>(ControlFinder.java:82) at org.eclipse.swtbot.swt.finder.finders.ControlFinder.<init>(ControlFinder.java:72) at org.eclipse.swtbot.swt.finder.SWTBot.<init>(SWTBot.java:114) at org.lcx.robotframework.swtbotplugin.service.SwtbotService.getSWTBot(SwtbotService.java:8) ... 157 more

[Laurent Carbonnaux]

Hello,

I'm not able to reproduce this problem.

I need to investigate further.

Since I'm in progress to develop 0.19 version, it may take some time.

I'll keep you informed

Regards,

Laurent

2013/9/13 <seven...@gmail.com>

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[Laurent Carbonnaux]

It's seems you application didn't completly launched "Could not find a display".

I'm not able to reproduce this problem since I don't have your application.

Let me take some time to check where this could come from.

I'll keep you inform.

Regards,

laurent.

2013/9/14 <seven...@gmail.com>

--

[Laurent Carbonnaux]

Hello,

Here is the jar files i'm using in the lib folder:

eclipselibrary-0.18-with-dependencies-swt.jar

org.eclipse.jface_3.5.2.M20100120-0800.jar

robotframework-2.7.7.jar

SWTSample.jar

SWTSample is my application

It works fine with this jars.

You may add the jface jar

Regards,

Laurent.

2013/9/14 <seven...@gmail.com>

--

[Laurent Carbonnaux]

Hi,

Thank you for your comments.

I will had some of these in the wiki.

You're rigth, the wiki is poor on SWT standalone. The fact is that I don't use it personnaly, so don't have lots of feedback.

Now I havve one!

Regards,

Laurent.

2013/9/17 <seven...@gmail.com>

Thanks for everyone. i have resolve all the problem

i just list the problems for new guys to reference

1、Cannot load 32-bit SWT libraries on 64-bit JVM

just change java 64 to java 32, i don't know someone whether had tested in 64bit system

2、can't find the display

my examples was composed by awt, not swt. this is my mistake

3、can't find a control

people should add "Start SWTBotBridge" keywords after "Start Application*"

when i use "Start Application", it will block testcase , i change to "Start Application In Separate Thread", that's ok

i have upload my example to github 

https://github.com/seveniruby/EclipseLibrarySWTExample

i think eclipselibrary's wiki lack some examples for SWT standalone

在 2013年9月17日星期二UTC+8上午12时26分01秒，Laurent Carbonnaux写道：

2013/9/14 <seven...@gmail.com>

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