With a Little Help from my Friend

ActiveMQ startup problems on Windows

admin — Thu, 23 Jun 2011 10:50:53 +0000

We’ve chosen to use ActiveMQ for our enterprise Java application (together with some other interesting tools like Apache Camel and Ivy) and I started to migrate the old code which have been using Glassfish stack to new environment on my dev machine. When integrating the Apache ActiveMQ everything went smooth including the installation and setting up the windows services for it. Even the service seemed to starting up correctly however it showed up that its actually not running (the telnet on service port proved its not up).

After checking logs in apache-activemq-5.5.0\data\activemq.log I’ve found out following strange error:

2011-04-28 12:43:30,633 | WARN | tmpdir | org.eclipse.jetty.util.log | WrapperSimpleAppMain java.io.IOException: The system cannot find the path specified at java.io.WinNTFileSystem.createFileExclusively(Native Method) at java.io.File.checkAndCreate(Unknown Source) at java.io.File.createTempFile(Unknown Source) at java.io.File.createTempFile(Unknown Source) at org.eclipse.jetty.webapp.WebInfConfiguration.resolveTempDirectory(WebInfConfiguration.java:279) at org.eclipse.jetty.webapp.WebInfConfiguration.preConfigure(WebInfConfiguration.java:43) at org.eclipse.jetty.webapp.WebAppContext.doStart(WebAppContext.java:378) at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:55) at org.eclipse.jetty.server.handler.HandlerCollection.doStart(HandlerCollection.java:165) at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:55) at org.eclipse.jetty.server.handler.HandlerWrapper.doStart(HandlerWrapper.java:92) at org.eclipse.jetty.security.SecurityHandler.doStart(SecurityHandler.java:338) at org.eclipse.jetty.security.ConstraintSecurityHandler.doStart(ConstraintSecurityHandler.java:229) at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:55) at org.eclipse.jetty.server.handler.HandlerCollection.doStart(HandlerCollection.java:165) at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:55) at org.eclipse.jetty.server.handler.HandlerWrapper.doStart(HandlerWrapper.java:92) at org.eclipse.jetty.server.Server.doStart(Server.java:242) at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:55) 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 org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeCustomInitMethod(AbstractAutowireCapableBeanFactory.java:1536) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1477) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1409) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:519) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456) at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:291) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:288) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:190) at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:574) at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:895) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:425) at org.apache.xbean.spring.context.ResourceXmlApplicationContext.(ResourceXmlApplicationContext.java:64) at org.apache.xbean.spring.context.ResourceXmlApplicationContext.(ResourceXmlApplicationContext.java:52) at org.apache.activemq.xbean.XBeanBrokerFactory$1.(XBeanBrokerFactory.java:114) at org.apache.activemq.xbean.XBeanBrokerFactory.createApplicationContext(XBeanBrokerFactory.java:114) at org.apache.activemq.xbean.XBeanBrokerFactory.createBroker(XBeanBrokerFactory.java:70) at org.apache.activemq.broker.BrokerFactory.createBroker(BrokerFactory.java:71) at org.apache.activemq.broker.BrokerFactory.createBroker(BrokerFactory.java:54) at org.apache.activemq.console.command.StartCommand.startBroker(StartCommand.java:115) at org.apache.activemq.console.command.StartCommand.runTask(StartCommand.java:74) at org.apache.activemq.console.command.AbstractCommand.execute(AbstractCommand.java:57) at org.apache.activemq.console.command.ShellCommand.runTask(ShellCommand.java:143) at org.apache.activemq.console.command.AbstractCommand.execute(AbstractCommand.java:57) at org.apache.activemq.console.command.ShellCommand.main(ShellCommand.java:85) 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 org.apache.activemq.console.Main.runTaskClass(Main.java:251) at org.apache.activemq.console.Main.main(Main.java:107) 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 org.tanukisoftware.wrapper.WrapperSimpleApp.run(WrapperSimpleApp.java:240) at java.lang.Thread.run(Unknown Source)

As the error actually doesn’t say what kind of temp directory is missing, it had to use the google and after a while I’ve found a fix. You can either disable the administration server which is intergated in ActiveMQ through Jetty or create two directories which is Jetty complaining about.

apache-activemq-5.5.0\bin\win32\temp\ apache-activemq-5.5.0\bin\win32\work\

Enjoy!

How to install software for Canon cameras

admin — Sun, 19 Dec 2010 02:33:19 +0000

The title of this post sound little bit silly as one would say what kind of issue could be in such straightforward process like installing drivers for my digital camera. Well – if you have original disc from Canon then you are fine. But in case you lost the disc or just bought used camera without original accessories then Canon prepared a terrible horror for you. The company has its application published on their web pages but there is one problem with it – the packages are called as “Updaters” and they can not be installed as standalone versions. You have to insert original CD from Canon prior to installing those updates and that’s it. So if you lost your CD’s, you have to contact Canon and re-buy copies of those (or get some friend and ask him for copies). Unbelievable, huh?

I was in the described situation today and after almost 2 hours swearing and searching on the internet I’ve found solution. The short version which was working for me on my 64bit Windows 7 is here:

Create a new file on your drive called for example canon-installation.reg
Insert following content in it

[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Canon\EOS Utility]
[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Canon\DPP]
[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Canon\ZoomBrowser EX]
[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Canon\ZoomBrowser EX\Settings]
[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Canon\ZoomBrowser EX\Install]
[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Canon\PhotoStitch]
[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Canon\EOS Capture]
[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Canon\EOSViewerUtility]
[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Canon\ODSK]

double click in the newly created file so its content will be saved into registry
download and run the updater from Canon again and it won’t be asking for original CD anymore

There is more info in Install Canon camera software without CD post with different versions for different operational systems including Apple’s mac.

How to fix Google Sync authentication errors

admin — Sun, 10 Jan 2010 01:18:15 +0000

Just few days ago I started getting authentication errors when trying to synchronize my PDA (HTC Artemis) with Google account. It had been working without any problems for few week, then suddenly stopped. I was trying to remove the server from active sync and re-add it, reboot both pda and laptop but nothing helped. I tried to search the internet and despite there is a lost of posts in forums asking for the same or similar problem (some of those related to Google service being down, some of those to other stuff) there is no clear advice. Then I found out one post mentioning blocked captcha for google account and after few secs I was able to sync my phone with google again.

After that I realized what actually happened. Some day I was trying to install Gmail client in my PDA and could not log into my account through it. It was still displaying index page with fields for user and password, after entering correct values it displayed error message stating that I entered bad username/password. I have tried it again for few times as I was pretty sure that credentials I am entering are correct – and then the client started to show also captcha field as usual. In that moment I gave up and close the client. I would never thought that this could be the reason for sync errors through the Exchange server, but it was! So what to do for fixing this? The solution si pretty easy but as usual, almost unknown to anyone.

Got to Google Captcha Unlock page (you can use your computer for that, it doesn’t need to be done through blocked PDA) , simply enter your username, password and captcha text. If everything is correct, the page display message that the account was unlocked and you can try to run sync.

Zend PHP5 Prepkit from uCertify available for pre-order

admin — Sat, 21 Nov 2009 19:37:40 +0000

There is a fresh new preparation kit for Zend PHP 5 certification available on uCertify pages – and you can save 50% ($59.49) if you preorder it.

PHP 5.3.1 out

admin — Fri, 20 Nov 2009 06:42:56 +0000

The fix release for 5.3 branch was just released yesterday – here is the official announcement from PHP team and Changelog is here. And it didn’t happen without some irony

IntelliJ Idea opensourced

admin — Fri, 16 Oct 2009 21:03:30 +0000

JetBrains decided to release next version of their IDE as an open-source so the version 9 would be available in two different packages. Free Community Edition for J2SE development and commercial Ultimate Edition with J2EE and other technologies support. You can check the edition comparison table here.

How to remove “Like this” from Google Reader

admin — Sun, 19 Jul 2009 10:36:56 +0000

So are you getting mad after the last socials change made to Reader by Google and trying to find how to get rid of those annoying how many people like this post? If you are using Firefox based browser, here is the how to!

For hiding the socials stuff we will use CSS in something what is called user defined default styles. For Mozilla family browser you can defined special set of instructions which would modify user interface behaviour of your browser and also web pages. The instructions are stored in two separate files in user directory and names of the files are userChrome.css and userContent.css (you can read more about those on official Mozilla web site). We will be interested in userContent.css, which is used for modifying default behaviour of websites you visit.

But first of all we need to find, where is this file stored. On Linux machines it should be in user home in .chrome directory (/home/username/.chrome). On Windows is the situation different with each version – for Windows XP is the best way to do Start -> Run -> type %APPDATA% and hit Enter. The folder with the application data will appear, go to Mozilla -> Firefox -> Profiles -> Default profile directory -> chrome. In here create a new file called userChrome.css and put there this content:

.entry-likers { display: none ! important; }

Try to reload Google Reader page to check if the annoying socials Like this anchors are still there – if so, restart the browser and enjoy socials free Reader!

Google ads socials to its Reader

admin — Sat, 18 Jul 2009 02:53:39 +0000

Google added Following, Liking and People search features to its Google Reader as a reply to raising numbers of people using the Twitter and Facebook social networks features. You can see more on official Google Reader blog – and for those who don’t like this kind of features and are wondering how to turn it off we have a howto.

New beta of Netbeans available

admin — Thu, 30 Apr 2009 00:35:01 +0000

New beta version of developer IDE with version number 2.7 is available for download on official site – you can check the list of the changes and new functionality on their wiki.

How to recreate root account in MySQL

admin — Sun, 29 Mar 2009 17:45:43 +0000

Today I was trying to log in to mysql database administration on one of my hosting machines and as I was getting ‘permission denied for user rott@localhost’ I tried to fix the root account and reset its password. But I wasn’t successful and later on I realized, that the root account was deleted from the mysql database by one of my friends accidentally. I started to search the internet what to do, but the only thing I have found regarding this issue was question on MySQL forum with exactly the same problem but no answer. So as usual, I tried to solve it by myself and here is it is.

The pre requisition is a shell access on your MySQL machine. Then you have to stop the standard mysql daemon and start the database in safe mode.

/etc/init.d/mysql stop
mysqld_safe --skip-grant-tables &

Then log in as a root and switch to mysql system database.

mysql -u root
mysql> use mysql;

Try to check that the root user is not present in user table:

mysql> select * from user where User='root';

If the database return empty record, lets manually insert the root user with empty password and then set all the permissions which he normally needs:

mysql> insert into user (Host, User, Password) values ('localhost','root','');
Query OK, 1 rows affected (0.04 sec)
mysql> update user set Select_priv='Y',Insert_priv='Y',Update_priv='Y',Delete_priv='Y',Create_priv='Y',Drop_priv='Y',Reload_priv='Y',Shutdown_priv='Y',Process_priv='Y',File_priv='Y',Grant_priv='Y',References_priv='Y',Index_priv='Y',Alter_priv='Y',Show_db_priv='Y',Super_priv='Y',Create_tmp_table_priv='Y',Lock_tables_priv='Y',Execute_priv='Y',Repl_slave_priv='Y',Repl_client_priv='Y',Create_view_priv='Y',Show_view_priv='Y',Create_routine_priv='Y',Alter_routine_priv='Y',Create_user_priv='Y' where user='root';
Query OK, 1 rows affected (0.03 sec)

Then quit the database console, kill the mysqld_safe daemon and start the standard mysql daemon again:

mysql> quit
killall mysqld_safe
/etc/init.d/mysql start

Try to log in into mysql console again with an empty password and for double check, try to run ‘grant’ command to see that the account is fully working:

mysql -u root
mysql> grant all privileges on *.* to 'root'@'localhost' with grant option;
Query OK, 1 rows affected (0.03 sec)

And thats it, your basic root acount is working again. Don’t forget to change the password or add the hostname to it, but that depends on your needs.