Hi everyone!Just a note for myself, today I faced a weird exception while trying to start a Managed Server from our Weblogic Cluster.The server crashed due to an exception:java.lang.OutOfMemoryError: allocLargeObjectOrArray: [Ljava/lang/Object;, size 16400I don't know exactly what hapenned, especially because the time that exception ocurred we had almost no users online.After trying to start the Managed Server I was facing this error:weblogic.management.DeploymentException: Exception occured while downloading filesAnd then:Caused By: java.io.IOException: [DeploymentService:290066]Error occurred while downloading files from admin server for deployment request "0". Underlying error is: "null"After some Googling I found a blog post that helped me a lot:http://www.javamonamour.org/2012/10/javaioioexception-deploymentservice2900.htmlOne special note to "and the Admin is unable to redeploy the file". After reading that I started to look into Stage directories inside managed server's to see if something is missing. I found out that the last version of the application wasn't there and after I managed to deploy it manually to the managed server, it started normally.Now it is just some time to let the Load Balancer do its work and free some of other managed servers load =).Hope it helps someone! Especially because I didnt't found anything that specific about the issue. In day-to-day use JDeveloper always make some weird things by itself... Here I'am showing how to solve the most common one, the Data Control Palette got hidden somewhere in the darkness...Screen showing the Palette:Altough I was not able to reproduce the problem I know how to solve it, you just have to go to Window Menu and click "Reset Windows to Factory Settings", that'll fix some lost tag in one of JDeveloper configuration XML's. Hi all!I was facing some issues with this new Jdeveloper release (11.1.2) also called a "SHERMAN" release.The problem seldom appears but probably did some developers to reinstall the tool. Here is a sreen of the bug in all of its glory:This bug usually occurs when something is wrong with your web project in particular, but when I looked into other projects it was happening to everything loaded with Jdeveloper, so this is not a project-specific bug.After some time working out with Jdev user directory (here I find it under C:\Documents and Settings\MY_WINDOWS_USER_NAME\Dados de aplicativos\JDeveloper\system11.1.2.0.38.60.17), deleting and moving directorys around I released that a specific directory was giving the issue, its name is "o.j2ee.jsplib".Looks like this directory store some information about libs that IDE uses to visualize JSF components, like taglibs or something else.You just have to delete this directory and let Jdeveloper recreate it for you on the next start. Something inside this directory was not letting Mojarra Library start, here is a screen with the issue corrected: Hi!Today I was reading a interesting topic about one of ViewObject tuning properties, it is called Forward Only mode, you can programmatically set it by calling setForwardOnly(true). This property won't allow the ViewObject to cache the previous loaded rows while RowSet scroll is happening.Link to the documentation: http://docs.oracle.com/cd/E21043_01/web.1111/b31974/bcadvvo.htm#sm0342Section39.2.6 Use Forward Only Mode to Avoid Caching View RowsAs stated in documentation:"Often you will write code that programmatically iterates through the results of a view object. A typical situation will