Replacing class file instead of redeploying whole WAR package

Hi,
This may sound very silly question, but I thought to post it just as to confirm.
I have an application deployed in websphere ver 5. Usually when there are any changes to any class files, we rebuild the entire package, and then redeploy it using the admin console.
Now, this time I've got only a couple of classes modified...my question is that can I just replace the modified classes directly instead of rebuilding the entire package and redeploying it?
I'd assume that this is different from hot deployment, as I am prepared to start the server again if needed be. Please advise folks.
Thanks

The problem is that this particular class (servlet) can run only in production environment...there is no test environment to run it..but thanks...I did see IBM's take on this.
http://publib.boulder.ibm.com/infocenter/wasinfo/v5r0/index.jsp?topic=/com.ibm.websphere.zseries.doc/info/zseries/ae/trun_app_hotupgrade_war.html
I think it does answer the question, I can replace the .class file directly in the expanded version of the war package, and then restart the application. It should be picked up automatically.
Thanks for your response.

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(newbie) Question about replacing .class files and web.xml file

I'm new to servlets and I have two quick questions...
Do I absolutely need a web.xml file to define all my servlets, or can I simply place .class files into the WEB-INF directory and expect them to run?
If my application server (for example Tomcat) is running and I replace a servlet .class file, do I need to restart the server for the new .class file to take effect?
...or are both of these questions specific to the application server I'm using?

Hi,
From an article I read:
With Tomcat 3.x, by default servlet container was set up to allow invoking a servet through a common mapping under the /servlet/ directory.
A servlet could be accessed by simply using an url like this one:
http://[domain]:[port]/[context]/servlet/[servlet full qualified name].
The mapping was set inside the web application descriptor (web.xml), located under $TOMCAT_HOME/conf.
With Tomcat 4.x the Jakarta developers have decided to stop allowing this by default. The <servlet-mapping> tag that sets this mapping up, has been commented inside the default web application descriptor (web.xml), located under $CATALINA_HOME/conf:


A developer can simply map all the servlet inside the web application descriptor of its own web application (that is highly suggested), or simply uncomment that mapping (that is highly discouraged).
It is important to notice that the /servlet/ isn't part of Servlet 2.3 specifications so there are no guarantee that the container will support that. So, if the developer decides to uncomment that mapping, the application will loose portabiliy.
And declangallagher, I will use caution in future :-)

Replacing .pkg files to fix "Error: No valid packages"

Hi all -
I've just learned the hard way that I'm not supposed to delete files from the Receipts folder.
I've done my due diligence, so I know that I need to replace at least "BaseSystem.pkg", but I have questions;
Is it ok, if I'm running 10.4.9, to copy it from my other mac running 10.3.9?
Should I try to replace the other .pkg files I deleted?
Should I just copy the whole Receipts folder?
What'll happen if I get packages I didn't have before, or that don't match the versions of the apps they're supposed to be associated with?
Sorry for all the questions, just want to be certain so I don't have to learn any more lessons the hard way.
Thanks!
OBTW: I've also finally learned - after 10+ years as a Mac user - to back up my hard drive.
PowerBook G4 Ti 550 (10.4.8), PowerMac G4 466 (10.3.9) 3rd gen iPod 30gig, 2nd gen Nano 8gig

Hi Dennis
my basesystem.pkg is specific to the 10.4 Tiger that was originally installed on my iMac G5 - numerous updates have not altered it.
I'll happily let you have a copy of my Tiger basesystem.pkg file - just email me.
What issues came up for you after deleting the files?
here's a list of the pkg files in my receipts folder....
BSD.pkg
CPU_AppleWorksCH.pkg
BrazilianPortuguese.pkg
BaseSystem.pkg
CPU_AppleWorksS.pkg
AppleAppSupport.pkg
BroadbandTunerUninstaller.pkg
Flip4Mac Web Plugins.pkg
Flip4Mac WMV Player Installer.pkg
French.pkg
CPU_AppleWorksZ.pkg
CPU_AppleWorksE.pkg
AppleMouse_PPC.pkg
Automator.pkg
GarageBand20Loops.pkg
GarageBand_202.pkg
2005 World Book Installer.pkg
Dutch.pkg
DVDPlayerUpdate.pkg
iChat.pkg
iDVD.pkg
iDVD5Themes.pkg
iDVDThemes.pkg
iMovie.pkg
iMovieHD502.pkg
iPhoto.pkg
iPhoto504.pkg
iPhotoContent.pkg
Italian.pkg
iTunesX.pkg
iWork Fonts.pkg
J2SE50Release3.pkg
J2SE50Release4.pkg
Japanese.pkg
MacOSXUpd10.4.7PPC.pkg
Java.pkg
Java131and142Release2.pkg
Keynote 2.pkg
Korean.pkg
MacOSX-File-0.66.pkg
MacOSXUpd10.4.5PPC.pkg
MacOSXUpd10.4.6PPC.pkg
MacOSXUpd10.4.9PPC.pkg
MacOSXUpdate10.4.4.pkg
MacOSXUpdateCombo10.4.3.pkg
MacOSXUpdCombo10.4.8PPC.pkg
QuickTime716.pkg
Mail.pkg
MediaFiles.pkg
MigrationAssistant.pkg
Norwegian.pkg
OnyX.pkg
OxfordDictionaries.pkg
Pages.pkg
psync.pkg
Safari.pkg
SecUpd2005-009Ti.pkg
SecUpd2006-002Ti.pkg
SecUpd2006-004Ti.pkg
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SecUpd2006-007Ti.pkg
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Swedish.pkg
TraditionalChinese.pkg
X11User.pkg
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CPU_MarbleBlast.pkg
CPU_Nanosaur.pkg
CPU_WorldBook.pkg
Danish.pkg
GarageBand10Loops.pkg
Finnish.pkg
Flip4Mac QuickTime Components.pkg
AdditionalEssentials.pkg
Essentials.pkg
CPU_AppleWorksT.pkg
CPU_AppleWorksJ.pkg
CPU_AppleWorksK.pkg
CPU_AppleWorksTA.pkg
CPU_AppleWorksUS.pkg
CPU_AppleWorksF.pkg
CPU_AppleWorksH.pkg
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iCal.pkg
iWork Extras.pkg
GarageBandApp20.pkg
GarageBandDemoSongs.pkg
CPU_AppleWorksDK.pkg
AsianLanguagesSupport.pkg
AppleMouseBluetoothPPC.pkg
iTunes.pkg
iTunesPhoneDriver.pkg
CPU_AppleWorksD.pkg
CPU_AppleWorksKH.pkg
CPU_AppleWorksN.pkg
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CPU_Manual.pkg
AddressBook.pkg
DVDPlayerUpdate200506.pkg
AirPortTi2005-001.pkg
AppleIntermediateCodec.pkg

Where has 'do you want to replace this file' gone when copying items in lion?

Hello, can anyone tell me if I can still have the option when copying items from one folder to another to be asked ' do you want to replace this file' instead of only having the new options to: stop / keep both / or replace all? thanks for your help.

If you don't mind losing them, it's all right to do it.
Maybe you just want to delete them instead?
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Flash Vars is not working when we accessing from other class files

Hi all, I'm currently developing a flex application where i
need to pass the data from the flash vars to the other class files
instead of the main actionscript class file.
Does any body know how i should go about doing that?? you can
see this below code : please help me out if u know how to solve
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public var
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import flash.display.LoaderInfo;
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Pass the data into the main app, then from there either pass
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Esakki

Hi,
why do you want to sign the class file?
Using a jar file you'll have all the classes into one single file and you'll have all the classes signed, and then you won't need to sign every single class, you'll do once and no more.
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Jsp to class files

All,
I am pretty new with jsp and java. I want to know if how do I deploy a jsp application as class files instead of sources. Can someone give me how do I get start with this? Many thanks.

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Help compiling with .class files

I am using JGrasp and I am trying to compile a program that uses .class files instead of the .java files, but JGrasp will not recognize these at compile time. How do I get my program to compile with these .class files?

I prefer using Jenuity:
[http://www.nmmu.ac.za/jenuityIDE]
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For the record, you compile .java files into .class files. There is no need to "compile" existing .class files. If you have the class files you can run them from the command line. e.g. if you have a class file named Orange.class you should be able to type "java Orange" from the command line to run it. If Orange is inside a directory structure based on packages you may need to execute this command from just outside the 'highest" folder.
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For every import ,there should be class file

suppose, i have written some servlets and complied .
Their class files will be placed in their packages.
does we need to set class path for those classes?
i think that ,those classes we are using i.e weblogic.jar or rowset.jar for them we have to set the class path.
but why do we need ,for our classes ,need to set.It will check in web-inf ->classes
please clear information

suppose, i have written some servlets and complied .
Their class files will be placed in their packages.
does we need to set class path for those classes?No. Because your app server will take care of that anyway.
i think that ,those classes we are using i.e
weblogic.jar or rowset.jar for them we have to set
the class path.No.
but why do we need ,for our classes ,need to set.It
will check in web-inf ->classes
please clear informationAll you need to do is to create a bundle (WAR, EAR) with all the JARs you need. What you're doing might not work because you're also relying on JARs you're notnecessarily supposed to use and that aren't provided to you by the app server.

One class type compiles into many .class files

I have written a single large GUI file that is composed of a single class (FCTabGui class). When I run javac FCTabGui.java it generates around 190 classes with the same name (FCTabGui) but each one after the first is attached with $# at the end (ie FCTabGui$1.class, ..., FCTabGui$189.class) . I have never seen this before. Does anyone know why this is happening and how I can keep it to just one .class file instead of 190. Thanks.
Jason

What I meant by "standard to jar up files for a GUI"
is that if there are lots of buttons that create
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because there is no alternative to it. One cannot
preserve the single .class file setup with a GUI,
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One can double click on a jar file and it will start
running automatically, (assuming the JRE is
installed), right?You can do that, but it's not automatic. You have to explicitly list what class has the main() method to invoke when the jar is double clicked. If you're using a wizard to create the jar, this may be easily specified. Otherwise you can do it by creating a jar manifest file with a "Main-class:" attribute.

How do i compile a class file to become an exe (application file)

I know jbuilder and other 3 rd party software are able to to that. I just want to know whether jdk1.3 compiler able to do it...

Hm ...
if you think of a compiler producing an executable file, this means, the application is compiled, linked and bound at file-level - what about the features of loading and linking classes during runtime or the ability to replace class files during runtime and load/link it dynamically?- Guess, a compiler for java can compile static applications, which need no dynamic linking of classes, but is it also able to keep this functionality of java this way?- I don't think so (but I never tested one of these compilers).
greetings Marsian

How to Load a class file base on .class file name???

Hi,
Can anyone help me?
1) Based on filename (d:\temp\bla.class), I want to load this bla.class and get the actual package of this class.
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public class bla
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Hi nikki96,
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import java.util.Enumeration;
import java.util.NoSuchElementException;
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import java.util.jar.Manifest;
import sun.misc.Resource;
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int port;
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How do you specify class file for appletviewer?

List,
I have searched over dozens of posts for "NoClassDefFoundError" and "wrong name" as well as "appletviewer" and others. I have read many posts about people who have the same problem I do, but I still can't seem to find a remedy:
My machine is running Windows ME
My application runs fine stand-alone
(it's main() method sets up and runs the init() method it is intended to be an applet)
My classpath includes "." as well as the JDK directory and the full path to my applications jar file
All classes are part of the package iCalendar and jar'd in a file called iCalendar.jar
When I compile and run my app stand-alone I use the following:
javac ./iCalendar/ViewController.java
java iCalendar.ViewController
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I consistently get the message NoClassDefFoundError wrong name: iCalendar/ViewController
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Drop one iCalendar out. The classpath should not
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You should also decide whether to use the jar file or
not - that can cause problems with netscape -
weird problems.I definetely want to figure this out using the jar file, I want the entire jar downloaded to minimize trips to the server.
Try putting iCalendar.jar and iCalendar.html to
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(probably because of the classpath or because
iCalendar.html is not where it should be) the
appletviewer is picking the class from outside the
jar.I created a directory off of the root C drive and called it temp, I copied the jar file and the html file to the temp directory and then tried appletviewer from the command line:
NoClassDefFoundError: ViewController (wrong name: iCalendar/ViewController)
Can this be because the jar file contains all of the class files whom all belong to the package iCalendar? Because to run it stand alone I must address iCalendar.ViewController, do I need to jar these files differently, and if so can I jar the directory structure?
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Importing a PAR file ---- not able to retrieve java class files(components)

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Error while using .jar file instead of class file.

Hello friends,
I created a java class which are referred and called from other jsp\xml and java files. I compiled this java class and everything is working properly. However, I do not want to use class files but want to use jar files instead. So, I created a jar file of this class file by using the command "jar -cvf jarfilename.jar".I kept the jar file in its respective folder .Also, I removed the class file from its path, just to see that the jar file will work automatically.
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Thanks,
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Edited by: RanjithM.V on May 11, 2008 10:34 PM

You probably populated the jar file incorrectly.
A common mistake is to include the path that you had on the classpath, in the jar file.
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Maybe you've done that.

Replacing class file instead of redeploying whole WAR package

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