Oracle VirtualBox stuck installation

When re-installing Virtualbox, it hangs and nothing happens.

Googling I found the solution:
http://www.tomshardware.com/forum/38226-63-problems-oracle-virtualbox

Pasting the answers here:

VirtualBox doesn't install startup items or services on Windows host, rather it installs several device drivers which may be the ones giving you problems. Depending on your settings during the installation, these drivers should be in your system:  

VBoxDrv VirtualBox Support Driver Oracle Corporation c:\windows\system32\drivers\vboxdrv.sys  

VBoxNetAdp VirtualBox Host-Only Network Adapter Driver Oracle Corporation 

c:\windows\system32\drivers\vboxnetadp.sys VBoxNetFlt VirtualBox 

Bridged Networking Driver Oracle Corporation 

c:\windows\system32\drivers\vboxnetflt.sys  

VBoxUSBMon VirtualBox USB Monitor Driver Oracle Corporation c:\windows\system32\drivers\vboxusbmon.sys 

TAP-Win32 Adapter V9 - VirtualBox Bridged Networking Driver Miniport  

Try using a program like Autoruns to disable those drivers and check the Device Manager for any VirtualBox related entries that may be marked as a problem. If the failed installation still shows on in your Programs and Features, try using CCleaner to remove that entry from the list. Before trying to reinstall again, download the latest release of VirtualBox and make sure the installer's checksum is correct. 
Post a reply if this helps you or not. 

--------

Thanks for those pointers - I think I have now solved the problem!  

Starting with a system that has VirtualBox installed and was thus hanging on reboot I did several 'shutdown->restart's to prove the frequency. I got 4 hangs out of 8 reboots.  

Then I looked for the drivers. I could only find 3 - VboxNetAdp, VboxUsbMon and VboxDrv. (The last 2 are 'hidden - non PnP drivers' you have to enable hidded drivers to see them. I disabled all three and repeated the restart tests: 8/8 success!  

Now I changed the status of VboxDrv and VboxUsbMon from 'system' to 'demand'. That failed first time so I tried 'automatic'. Then I did the restart tests again: 8/8 success. Re enable the VboxNetAdp as well... again success!  

Now I had re-enabled all the drivers so I tried running Virtualbox again with complete success. So far I have had no hangs on restart with those two non PnP drivers set to automatic. (See here for an explanation of driver startup types http://technet.microsoft.com/en-us [...] 25630.aspx )  

BTW the checksum on the package is wrong! Oracle have released a new version of the VirtualBox without updating the MD5 page. You can see the release number of the installer is different from that quoted on the checksum page!  

Thanks again - problem solved!

RegExp Q*Bert

I was reading the famous Coding Horror and his comparison between RegExp and Q*Bert languages is very funny and "accurate".

This remains me the post of the new book of RegExp cookbook 2nd ed :

(?:429496729[0-5]|42949672[0-8][0-9]|4294967[01][0-9]{2}|429496[0-6]?[0-9]{3}|42949[0-5][0-9]{4}|4294[0-8][0-9]{5}|429[0-3][0-9]{6}|42[0-8]?[0-9]{7}|4[01][0-9]{8}|3[0-9]{9}|2[2-9][0-9]{8}|21[5-9][0-9]{7}|214[89]?[0-9]{6}|2147[5-9][0-9]{5}|214749[0-9]{4}|214748[4-9][0-9]{3}|2147483?[7-9][0-9]{2}|21474836[5-9][0-9]|214748364[89])

Still I think there must be a better solution for it. Anyone ?

Bobby Fishcer jugando tenis de mesa

Estas fotos de Bobby Fishcer jugando ping-pong son de culto:

Imagenes del documental de HBO: Bobby Fischer Against the World (2011):

Documental de uno de los mas grandes jugadores de ajedrez del mundo, Bobby Fischer. Muestra de forma agil y entretenida la vida inicial de este genio que de forma autodidactitca aprendio y supero las tecnicas de la epoca ajedrecistica.

Entrevistas a los principales actores del gran bullado campeonato del mundo de 1972 contra Spassky. Filmaciones de la epoca y como algo tan lento pudo tomar tanta atencion, que claro que por el tema de la guerra fria, hizo un impacto global.

Despues de llegar a una cuspide insuperable se ve la caid libre de este gran jugador que años despues pudimos ver por enfermedades mentales no tratadas cayo en un decadencia sin retorno. Entrega una triste y real vision de lo que sucedio con él y quizas deja un espacio al libre albedrio para imaginar si hubiese jugado contra Karpov y seguido una vida mas racional.
Curioso detalles es la locura de varios grandes jugadores mencionados en el filme... será un patrón o mera coincidencia ?

Para cuaquier persona que haya jugado a algun nivel o respete este deporte-ciencia, es una manera fresca y dinamica de ver esta biografia del mas grande los los jugadores norteamericanos.

NPE: Node Manager

Working with WLS 10.3.5 and trying to start Node Manager (NM) using a script startNodeManager.cmd (yes, windows).

The following error was thrown:

Node manager v10.3





Configuration settings:



NodeManagerHome=C:\oracle\wls1035\WLSERV~1.3\common\NODEMA~1

ListenAddress=

ListenPort=5546

ListenBacklog=50

SecureListener=true

AuthenticationEnabled=true

NativeVersionEnabled=true

CrashRecoveryEnabled=false

JavaHome=C:\oracle\wls1035\JDK160~1\jre

StartScriptEnabled=false

StopScriptEnabled=false

StartScriptName=startWebLogic.cmd

StopScriptName=

LogFile=C:\oracle\wls1035\WLSERV~1.3\common\NODEMA~1\nodemanager.log

LogLevel=INFO

LogLimit=0

LogCount=1

LogAppend=true

LogToStderr=true

LogFormatter=weblogic.nodemanager.server.LogFormatter

DomainsFile=C:\oracle\wls1035\WLSERV~1.3\common\NODEMA~1\nodemanager.domains

DomainsFileEnabled=true

StateCheckInterval=500

  java.lang.NullPointerException
        at java.util.Hashtable.containsKey(Hashtable.java:314)
        at weblogic.nodemanager.server.NMServerConfig.initNetworkInfoList(NMServerConfig.java:491)
        at weblogic.nodemanager.server.NMServerConfig.getNetworkInfoList(NMServerConfig.java:481)
        at weblogic.nodemanager.server.NMServerConfig.print(NMServerConfig.java:599)
        at weblogic.nodemanager.server.NMServerConfig.print(NMServerConfig.java:561)
        at weblogic.nodemanager.server.NMServer.(NMServer.java:166)
        at weblogic.nodemanager.server.NMServer.main(NMServer.java:375)
        at weblogic.NodeManager.main(NodeManager.java:31)Sep 25, 2012 12:13:20 PM weblogic.nodemanager.server.NMServer mainSEVERE: Fatal error in node manager serverjava.lang.NullPointerException
        at java.util.Hashtable.containsKey(Hashtable.java:314)
        at weblogic.nodemanager.server.NMServerConfig.initNetworkInfoList(NMServerConfig.java:491)
        at weblogic.nodemanager.server.NMServerConfig.getNetworkInfoList(NMServerConfig.java:481)
        at weblogic.nodemanager.server.NMServerConfig.print(NMServerConfig.java:599)
        at weblogic.nodemanager.server.NMServerConfig.print(NMServerConfig.java:561)
        at weblogic.nodemanager.server.NMServer.(NMServer.java:166)
        at weblogic.nodemanager.server.NMServer.main(NMServer.java:375)
        at weblogic.NodeManager.main(NodeManager.java:31)



goto finish

ENDLOCAL

This can be fixed by applying patch 12564602

Paradoja de Guarismos

La mitad de tres es ocho.

3 : 8

Número Mágico

16126

Oreilly Second Edition of Regular Expressions Cookbook

I was reading the free sampler of this new edition and paid my attention the reference to Recipe 6.7:

So I tested it, but it doesn't work as expected:

String regexp = "(?:429496729[0-5]|42949672[0-8][0-9]|4294967[01][0-9]{2}|429496[0-6]?[0-9]{3}|42949[0-5][0-9]{4}|4294[0-8][0-9]{5}|429[0-3][0-9]{6}|42[0-8]?[0-9]{7}|4[01][0-9]{8}|3[0-9]{9}|2[2-9][0-9]{8}|21[5-9][0-9]{7}|214[89]?[0-9]{6}|2147[5-9][0-9]{5}|214749[0-9]{4}|214748[4-9][0-9]{3}|2147483?[7-9][0-9]{2}|21474836[5-9][0-9]|214748364[89])"; 

String text = "214748364 8 2147483648 2147483650 4294967295";

I get the following results:

214748364
214748364
214748365
4294967295

is this a typo in the book or maybe RegexMagic is wrong.

http://www.regexguru.com/

Regards,

German

How to retrieve XML sent into SOAP Payload

Using WebLogic Server 10.3.5 , we need a way to retrieve XML payload that is not sent between CDATA:

<foo>
<bar>
foobar
</bar>
</foo>

To implement the solution, please use the following snippet code to achieve the requirement:

To achieve this, we use JAX-RPC and following webservice endpoint:
in the method nodeToString() we are getting the XML as String:

@WebMethod()

public String sayHello(javax.xml.soap.SOAPElement message) {

System.out.println("**************************ENDPOINT**************************************************");

System.out.println("sayHello:" + message.toString());

System.out.println("sayHello:" + message.getClass());



printNodeToConsole(message);

String xml_str = nodeToString(message);



System.out.println("****************************XML**********************");

System.out.println(xml_str);

System.out.println("****************************XML**********************");



return "Here is the message: '" + message + "'";

}





private String nodeToString(Node node) {

StringWriter sw = new StringWriter();

try {

System.out.println("Start string conversion...");

Transformer t = TransformerFactory.newInstance().newTransformer();

t.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "yes");

t.transform(new DOMSource(node), new StreamResult(sw));

} catch (TransformerException te) {

System.out.println("nodeToString Transformer Exception");

}

System.out.println("end string conversion...");

return sw.toString();

}

There is a workaround escaping the XML with CDATA or XML entities < >
but the solution would be to use javax.xml.soap.SOAPElement as parameter of the webservice endpoint

Numbers with Thousand Separators

My solution for Numbers with Thousand Separators regexp:

^\-?[0-9]{1,3}(\,[0-9]{3})*(\.[0-9]+)?$|^[0-9]+(\.[0-9]+)?$

Vintage Chess

Estos son post antiguos que tengo en otro blog, creo que son interesantes de tenerlos aca ta,bien:

Colossus Chess 4.0 (a8) v/s GNU Chess

Por fin pude lograr hacer jugar (a través del protocolo UCI) a Colossus Chess 4.0 y GNU Chess para poder generar un nivel al muy buen producto de 8 bits Colossus Chess que era el mejor de la época.

Colossus hizo una buena presentación considerando los 8 bits y 1.67mhz del atari contra:

Hardware: Mobile AMD Sempron™ Processor 3000+ 1794 MHz with 1.152 MB Memory

Bueno el juego lo pueden ver a continuación (para algún tipo de análisis para jugadores) y el archivo PGN.

GNU Chess (white) / Atari Colossus Chess 4. 0 (Black)

1. e2e4 / e7e5
2. g1f3 / g8f6
3. b1c3 / f8b4
4. a2a3 / b4c3
5. d2c3 / d7d6
6. c1g5 / e8g8
7. f1e2 / b8c6
8. d1d3 / c8g4
9. e1c1 / a8c8
10. h2h3 / g4h5
11. d3e3 / h5f3
12. e3f3 / a7a5
13. h3h4 / d8e7
14. h1h3 / f8d8
15. h4h5 / h7h6
16. g5f6 / e7f6
17. f3f6 / g7f6
18. h3f3 / g8g7
19. d1d3 / d8e8
20. f3f5 / e8e7
21. d3g3 / g7h7
22. f5f6 / c8d8
23. e2c4 / d8f8
24. f6f5 / h7h8
25. g3g6 / f7g6
26. f5f8 / h8h7
27. h5g6 / h7g6
28. c1d2 / g6g7
29. f8g8 / g7f6
30. g8h8 / f6g7
31. h8a8 / g7f6
32. c4d5 / e7g7
33. g2g3 / a5a4
34. d2e3 / h6h5
35. a8a4 / b7b5
36. a4a8 / c6e7
37. a8f8 / f6g5
38. d5f7 / h5h4
39. g3h4 / g5h4
40. f7e8 / c7c6
41. f8h8 / h4g5
42. h8h5 / g5g4
43. h5h6 / g7g8
44. e8d7 / g4g5
45. h6e6 / g8g7
46. e6d6 / g7g6
47. d6g6 / g5g6
48. f2f4 / e5f4
49. e3f4 / g6f6
50. e4e5 / f6f7
51. f4e3 / f7g6
52. e3d4 / g6g5
53. d4c5 / g5f4
54. c5d6 / e7f5
55. d7f5 / f4f5
56. e5e6 / f5f6
57. e6e7 / c6c5
58. e7e8q / b5b4
59. e8e6 / f6g5
60. d6e5 / b4a3
61. e6f5 / g5h4
62. e5f4 / a3b2
63. f5-g4+

Colossus Tournament

Finally I made to play both Colossus Chess (3 & 4) against each other, where the last one won without any doubt 9.5 - 0.5

CC3 hardly got a the 4th game ending in a draw. Here it's the tournament in PGN to watch it in some chess software such as Arena.

---

Finalmente hice jugar a los Colossus Chess 3 y 4, donde el último ganó sin apelación 9,5 - 0,5

CC3 Apenas logró una tabla en el cuarto juego. Aquí les dejo el archivo del torneo en PGN para poder visualizarlo en algún software como Arena.

Aocho_cc4 = Colossus Chess 4.0
Aocho_cc3 = Colossus Chess 3.0

Rank	Engine	Score	Ao	Ao	S-B
1	Aocho_cc4	9,5/10	· ·· ·· ·· ··	111=111111	4,75
2	Aocho_cc3	0,5/10	000=000000	· ·· ·· ·· ··	4,75