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Created by Dr. Xi on May 02, 2011 15:59:37
Last update: February 25, 2012 09:16:37
This code snippet gets the default keystore used by the Java keytool and displays the list of aliases along with the key type (certificate or private key).
import java.io.File;
import java.io.FileInputSt...
The default keystore used by the above code is: $HOME/.keystore .
Created by James on January 11, 2011 22:08:26
Last update: February 03, 2012 11:23:25
By default Firefox puts a dotted line box around the link or button label when you click them. Sometimes it's annoying and makes your sexy buttons look ugly. You can get rid of the dotted lines for links with outline:none in CSS, but that doesn't work for buttons.
<!doctype html>
<html>
<head>
<style t...
For buttons you need " button::-moz-focus-inner { border: 0; } ":
<!doctype html>
<html>
<head>
<style t...
I've also seen this:
/* get rid of those system borders being generated...
For more information :
Remove Button Focus Outline Using CSS
Created by Fang on November 10, 2011 09:26:12
Last update: November 10, 2011 09:26:12
Syntax highlighted XML schema for JSF 2.0 Application Configuration Resource File ( faces-config.xml ). Almost 3000 lines!
<?xml version="1.0" encoding="UTF-8"?>
<xsd:sch...
Created by magnum on December 03, 2010 08:53:18
Last update: December 03, 2010 08:54:23
You can use the ntfsresize utility on Linux to shrink or expand an NTFS partition (boot, for example, with the DRBL live cd).
To shrink an NTFS partition:
shrink NTFS (the file system) with ntfsresize.
re-create a smaller partition to hold the shrinked file system with FDisk.
To expand an NTFS partition:
Recreate a partition that's bigger than the previous one.
expand NTFS to the full size of the new partition.
The following are from excerpts from ntfsresize FAQ (Frequently Asked Questions) :
ntfsresize help:
[tinker:root]:(~)# ntfsresize -h
ntfsresize v1....
ntfsresize example session:
[tinker:root]:(~)# ntfsresize -s11000M /dev/hd...
Fdisk example session:
[tinker:root]:(~)# fdisk /dev/hdc
...
Created by magnum on August 19, 2010 22:42:26
Last update: August 19, 2010 22:43:59
Lyx wasn't able to open DVI files with the error message MIME type application/x-dvi not supported. I looked at Lyx preferences and it's using xdg-open to open the file. The following query shows that the default application for the DVI mime type is Evince. So I updated that to xdvi , which I do have.
$ xdg-mime query default application/x-dvi
...
But it didn't work! I checked that the file ~/.local/share/applications/defaults.list did get updated. I even logged out and logged back in!
I had to update the system wide configuration file /usr/share/applications/defaults.list to make it work:
#application/x-dvi=evince.desktop
applicati...
Created by Fang on July 17, 2010 03:16:53
Last update: July 17, 2010 03:18:25
This error happens when the ordering of elements in web.xml is not correct. For example, in a <servlet> declaration, <servlet-name> should come before <servlet-class> . If you switch the order of <servlet-name> and <servlet-class> , you'll get this error.
This was my stack trace in JBoss when I declared <load-on-startup> before <init-param> for a servlet:
DEPLOYMENTS IN ERROR:
Deployment "vfszip:/C:/...
Created by Fang on September 02, 2009 02:46:42
Last update: September 02, 2009 02:47:08
From http://maven.apache.org/guides/introduction/introduction-to-dependency-mechanism.html . There are 6 scopes available: compile : This is the default scope, used if none is specified. Compile dependencies are available in all classpaths of a project. Furthermore, those dependencies are propagated to dependent projects. provided : This is much like compile , but indicates you expect the JDK or a container to provide the dependency at runtime. For example, when building a web application for the Java Enterprise Edition, you would set the dependency on the Servlet API and related Java EE APIs to scope provided because the web container provides those classes. This scope is only available on the compilation and test classpath, and is not transitive. runtime : This scope indicates that the dependency is not required for compilation,...
Created by Dr. Xi on September 07, 2008 03:56:00
Last update: September 07, 2008 04:05:51
The @Retention meta-annotation (annotations to annotate an Annotation Type) can have three values:
RetentionPolicy.SOURCE - the annotation is source level, it's ignored by the compiler.
RetentionPolicy.CLASS - the annotation is retained at compile time, but ignored by the VM at runtime ( this is the default )
RetentionPolicy.RUNTIME - the annotation is retained at runtime, you can use Java reflection to query the annotation
For example:
import java.lang.annotation.*;
// if @Target is...
At runtime, a program can query the annotations through the java.lang.reflect.AnnotatedElement interface, which is implemented by java.lang.Class , java.lang.reflect.Constructor , java.lang.reflect.Field and java.lang.reflect.Method , among others.
This is an example from Sun :
import java.lang.reflect.*;
public clas...
