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Ever get this error with ColdFusion?

Error casting an object of type coldfusion.compiler.ASTsimpleVariableReference to an incompatible type. This usually indicates a programming error in Java, although it could also mean you have tried to use a foreign object in a different way than it was designed.

java.lang.ClassCastException: coldfusion.compiler.ASTsimpleVariableReference
at coldfusion.compiler.StmtAssembler.createCFloopIndexVariable(StmtAssembler.java:2020)
at coldfusion.compiler.StmtAssembler.cfloopList(StmtAssembler.java:1838)
at coldfusion.compiler.StmtAssembler.cfloop(StmtAssembler.java:1687)
at coldfusion.compiler.StmtAssembler.assembleStatement(StmtAssembler.java:284)
at coldfusion.compiler.TemplateAssembler.assembleStatement(TemplateAssembler.java:238)
at coldfusion.compiler.StmtAssembler.block(StmtAssembler.java:201)
at coldfusion.compiler.TemplateAssembler.assemblePage(TemplateAssembler.java:200)
at coldfusion.compiler.TemplateAssembler.assemble(TemplateAssembler.java:77)
at coldfusion.compiler.NeoTranslator.translateJava(NeoTranslator.java:316)
at coldfusion.compiler.NeoTranslator.translateJava(NeoTranslator.java:119)
at coldfusion.runtime.TemplateClassLoader$1.fetch(TemplateClassLoader.java:310)
at coldfusion.util.LruCache.get(LruCache.java:180)
at coldfusion.runtime.TemplateClassLoader$TemplateCache.fetchSerial(TemplateClassLoader.java:254)
at coldfusion.util.AbstractCache.fetch(AbstractCache.java:58)
at coldfusion.util.SoftCache.get(SoftCache.java:81)
at coldfusion.runtime.TemplateClassLoader.findClass(TemplateClassLoader.java:476)
at coldfusion.filter.PathFilter.invoke(PathFilter.java:79)
at coldfusion.filter.LicenseFilter.invoke(LicenseFilter.java:27)
at coldfusion.filter.ExceptionFilter.invoke(ExceptionFilter.java:70)
at coldfusion.filter.ClientScopePersistenceFilter.invoke(ClientScopePersistenceFilter.java:28)
at coldfusion.filter.BrowserFilter.invoke(BrowserFilter.java:38)
at coldfusion.filter.NoCacheFilter.invoke(NoCacheFilter.java:46)
at coldfusion.filter.GlobalsFilter.invoke(GlobalsFilter.java:38)
at coldfusion.filter.DatasourceFilter.invoke(DatasourceFilter.java:22)
at coldfusion.CfmServlet.service(CfmServlet.java:175)
at coldfusion.bootstrap.BootstrapServlet.service(BootstrapServlet.java:89)
at jrun.servlet.FilterChain.doFilter(FilterChain.java:86)
at coldfusion.monitor.event.MonitoringServletFilter.doFilter(MonitoringServletFilter.java:42)
at coldfusion.bootstrap.BootstrapFilter.doFilter(BootstrapFilter.java:46)
at jrun.servlet.FilterChain.doFilter(FilterChain.java:94)
at jrun.servlet.FilterChain.service(FilterChain.java:101)
at jrun.servlet.ServletInvoker.invoke(ServletInvoker.java:106)
at jrun.servlet.JRunInvokerChain.invokeNext(JRunInvokerChain.java:42)
at jrun.servlet.JRunRequestDispatcher.invoke(JRunRequestDispatcher.java:286)
at jrun.servlet.ServletEngineService.dispatch(ServletEngineService.java:543)
at jrun.servlet.jrpp.JRunProxyService.invokeRunnable(JRunProxyService.java:203)
at jrunx.scheduler.ThreadPool$ThreadThrottle.invokeRunnable(ThreadPool.java:428)
at jrunx.scheduler.WorkerThread.run(WorkerThread.java:66)

It is caused when you put a variable with pound signs where it is expecting a variable name. For example this code with throw this exception:

<cfloop list="#list#" item="#item#"></cfloop>

The #item# should just be item

If you try running this command to add a new column on Microsoft SQLServer:

ALTER TABLE ADD COLUMN column_name int

You will get an error message:

Incorrect syntax near the keyword 'COLUMN'.

That's because SQL Server Doesn't like ADD COLUMN it prefers you just say ADD instead:

ALTER TABLE ADD column_name int

How do you forward your unix mail to another email address? It's quite simple in most cases you just need to put the email address in a .forward located in your home directory. From the command line or shell type:

echo somewhere@example.com > ~/.forward

I purchased a 32" Vizio VP322HDTV10A Plasma HDTV about a month ago from Walmart (they seam to have very good prices on Vizio TV's). Overall I have been very happy with the TV.

One of the main concerns when I purchased the TV was how well the Plasma display would perform during the daylight. Plasma TV's can have more problems with glare than their LCD counterparts. While you will certainly see some reflections on the screen if the TV is in a bright room, it really is not that bad. It is not any worse than the glare you would have from a regular old CRT tube TV.

The TV has great picture, and performs really well for sporting events, and action. I don't usually watch Golf on TV, but the picture quality is so realistic on a high definition broadcast, you can't help but watch for a bit.

The only thing that I am not a huge fan of is the on screen graphics the TV provides, they are very low quality, and the fonts they use are not anti-aliased, so you get blocky text from a 1980's computer for things like closed captions.

The remote is very simplistic, anyone who is overwhelmed by complicated remote controls, or appreciates simplicity in design will like the remote. Most options that might have their own key are deferred to the main menu. The feature I use that is hard to get to is turning closed captioning on (we use this when the baby is sleeping sometimes) you have to hit a few buttons to turn it on. The TV does have a feature that automatically turns on CC when you hit mute, which is nice.

Ever wanted a list of files inside a jar file. It's pretty simple to do using the jar command:

jar -tf somefile.jar

You could also use this technique to list the contents of a zip file, since jar files are actually zip files.

Often when you restore a backup from SQL server you run into funky problems with users. Suppose you have login cfusion and you restore a database from another server that also had user called cfusion you can't properly use this login, and you might get the error:

Error 15023: User or role 'cfusion' already exists in the current database.

To fix this I ran:

EXEC sp_change_users_login 'Auto_Fix', 'cfusion', NULL, 'password'

And it worked like a charm.

Need to connect to a SQL Server over TCP/IP on a non standard port (not 1433) with Microsoft SQL Server Management Studio 2005 Enterprise Manager?

Turns out the solution is also non-standard, use a comma in the host name (I had tried a colin, but that doesn't work...)

sqlserver.example.com,61433

Where 61443 would be the non standard port number.

I noticed that when I used the Ext javascript library, that an image s.gif was loaded from extjs.com

It turns out the folks from Ext.js have defined a variable which defaults to http://extjs.com/s.gif but you should set it to your local path, as follows:

Ext.BLANK_IMAGE_URL = 'ext/resources/images/default/s.gif';

If you are using Ext 1.1 the image will be located here:

Ext.BLANK_IMAGE_URL = 'ext/resources/images/aero/s.gif';

I've run into this a few times, when you make a change to a table that is very big (eg million or more records) in SQL Server 2005 table designer, you typically get an message:

Saving Definition Changes to tables with large amounts of data could take a considerable amount of time. While changes are being saved, table data will not be accessible.

Usually followed by the error message:

Post-Save Notifications

- Unable to modify table.
Timeout expired. The timeout period elapsed prior to completion of the operation or the server is not responding.

I've seen this error when trying to make a column not null, or trying to modify an existing column.

To fix it, go to the Tools Menu and select Options then under Designers select Table and Database Designers the first option allows you to disable the timeout, or make it greater than the default 30 seconds.

Fluid lets you create run a web application in an isolated instance of Safari, it only works on Leopard

Link: Fluid - Free Site Specific Browser for Mac OS X Leopard

Nouns, verbs, adjectives and adverbs are grouped into sets of cognitive synonyms (synsets), each expressing a distinct concept. Synsets are interlinked by means of conceptual-semantic and lexical relations.

Link: WordNet - A Lexical Database for the English Language

75 auto care tips to help keep your car in tip top shape.

Link: Car Maintenance Tips

Storage web service, supports child user accounts and media manipulation. Similar to amazon s3. Funded by intel

Link: Nirvanix Storage API

By default, Control.Modal creates modal windows and lightboxes from any links/anchors elements on your pages. Since it attaches these behaviors to HTML that already has semantic meaning, it will degrade gracefully when javascript is disabled.

Link: Control.Modal Javascript Modal Windows and Lightboxes using Prototype

The Google Chart API lets you dynamically generate charts. Use of the Google Chart API is subject to a query limit of 50,000 queries per user per day.

Link: Google Charting API

Lists security best practices and info on ColdFusion's session variable management and J2EE sessions.

Link: ColdFusion Session Management Tips from OWASP

The USGS has an API / Web Service for getting the Elevation of a given GPS point (latitude / longitude ).

Here's an example web service call.

The call in that example was for a point somewhere on Algonquin Mountain (Lon x="-73.9853668212891" Lat y="44.1447687597838"). The API tells us that the elevation at that point is: 4850.30527189961 Feet.

You can find more info about the API at the USGS

Free Photoshop Shapes, Clipart, Icons, Brushes and more.

Link: Free Treasures for Designers

The Chart Chooser helps you pick the right kind of chart for the right kind of analysis. Includes templates for powerpoint and excell.

Link: Choose Effective Charts

A Big list of tips for public speaking (250 tips!) and giving presentations. Some are good some are great. From the author of public speaking FAQ book, Eric Feng.

Link: 250 Public Speaking Tips