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Created by Fang on July 25, 2012 12:52:40
Last update: September 14, 2012 13:37:57
Summarized from official JAX-WS documentation : Sending and Receiving SOAP Headers To send a SOAP header:
HelloService helloService = new HelloService(); ... To receive a SOAP header: List<Header> inboundHeaders = bp.getInboundHeaders... Message logging On the client side, set system property: com.sun.xml.ws.transport.http.client.HttpTransport... On the server side, set system property: com.sun.xml.ws.transport.http.HttpAdapter.dump=tru... Propagation of Server-side Stacktrace Propagation of Stack trace is on by default. The whole stacktrace (including nested exceptions) is propagated in the SOAP Fault and the complete exception stacktrace is visible to the client as cause of SOAPFaultException . To turn off stack trace propagation, set this system property on the server: com.sun.xml.ws.fault.SOAPFaultBuilder.disableCaptu... Update: At least on the client side, the property name has been changed to: com.sun.xml.internal.ws.transport.http.client.Http... The messages are dumped to stdout . For...
Created by Fang on December 06, 2011 19:03:25
Last update: December 07, 2011 08:54:11
Our custom tag, as implemented in the previous note , is broken when a template is used.
Create a template file ( home-template.xhtml ):
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Stric...
and a test page that uses it ( home.xhtml ):
<?xml version="1.0" encoding="UTF-8"?>
<ui:comp...
Then request the page with URL: http://localhost:8080/facelet-demo/home.jsf?name=Jack .
You'll find that our hello tag works inside ui:repeat but fails to get the value defined by ui:param ! What's the problem? Our hello tag implementation evaluated the EL with the wrong EL context!
This is the corrected implementation:
package com.example;
import java.io.IOExcep...
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 Fang on November 02, 2011 16:40:10
Last update: November 02, 2011 16:40:10
Facelet taglib schema from JavaServer Faces Spec 2.0:
<xsd:schema targetNamespace="http://java.sun.com/x...
Created by alfa on June 02, 2011 13:04:18
Last update: June 02, 2011 13:04:18
Some javap usage examples.
Start from HelloWorld.java :
@Deprecated
public class HelloWorld {
pu...
javap -c HelloWorld outputs:
Compiled from "HelloWorld.java"
public class He...
javap -v HelloWorld outputs ( -v for verbose mode):
Compiled from "HelloWorld.java"
public class He...
The output consists of:
" Compiled from... " header
Class attributes. For the HelloWorld example, there are two: SourceFile and Deprecated .
Minor and major class file version
Constant pool
Disassembled code
LineNumberTable for debugging purposes.
javap by default only prints package/protected/public members. To display all members including private, use the -p switch.
javap -v -p HelloWorld
Created by freyo on May 23, 2011 12:07:59
Last update: May 23, 2011 12:09:42
You can construct a java.security.cert.Certificate object from a string or byte array. Byte array is cleaner because for string you also have to know the character encoding.
// import java.security.cert.CertificateFactory;
...
If the certificate string is encoded in "UTF-8", the ByteArrayInputStream should be created with:
new ByteArrayInputStream(certString.getBytes("UTF-...
Created by alfa on May 20, 2011 15:54:23
Last update: May 20, 2011 15:54:23
From Oracle : The simplest and most reliable way to achieve short garbage collection times over the lifetime of a production server is to use a fixed heap size with the default collector and the parallel young generation collector, restricting the new generation size to at most one third of the overall heap. The following example JVM settings are recommended for most engine tier servers:
-server -XX:MaxPermSize=128m -XX:+UseParNewGC -XX:... If the engine tier server enables caching for call state data, the example settings are: -server -XX:MaxPermSize=128m -XX:+UseParNewGC -XX:... For replica servers, use the example settings: -server -XX:MaxPermSize=128m -XX:+UseParNewGC -XX:... The above options have the following effect: -XX:+UseTLAB - Uses thread-local object allocation blocks. This improves concurrency by reducing contention on the shared heap lock. -XX:+UseParNewGC...
Created by Dr. Xi on April 20, 2011 21:44:15
Last update: May 02, 2011 20:56:58
The String.format() method provides versatile formatting capabilities. This tutorial tries to present these capabilities in a accessible manner. The format string A format string can contain zero, one, or more format specifiers . The general form of a format specifier is:
%[argument_index$] [flags] [width] [.precision]co... where things in square brackets are optional, and conversion is a character indicating the conversion to be applied to the corresponding variable value. The only required characters in the format specifier is the percent sign % and the conversion character. A simple example: public static void simpleFormat() { System.out... The Argument index The argument index is specified by a number, terminated by the dollar sign $ . The same argument may be repeated multiple times in a format string. Unindexed...
Created by Dr. Xi on April 19, 2011 16:01:39
Last update: April 19, 2011 16:01:39
This note relates to Python 2.x. A Python class is old-style by default, unless it has another new style class or the "top level" class object as its parent. The sure way to tell that an object is an instance of a new style class is to use the function type , type(x) returns <type 'instance'> for an old-style class, but it returns <class 'ClassType.X'> for a new-style class.
Class definition:
class A: # old style class
def __init__(sel...
Test session:
>>> A
<class ClassType.A at 0x7f36ae442fb0>
...
Created by Dr. Xi on September 17, 2010 21:29:47
Last update: September 17, 2010 21:31:43
With JBoss (Tomcat?), the servlet container always appends the default charset ISO-8859-1 to the Content-Type header of a JSP response. For example, if you are using JSP to render PDF and put the following declaration at the top of the JSP:
<%@ page contentType="application/pdf"%> These would be the headers in the HTTP response (notice that charset=ISO-8859-1 was appended to Content-Type ): HTTP/1.1 200 OK Server: Apache-Coyote/1.1 X-... And the output would be truncated a few bytes before non-ASCII characters were encountered, without any error messages ! Maybe you don't intend to output binary files with JSP, but still your response would be truncated without warning if the page happens to contain any non-ASCII characters (when the charset is the default charset=ISO-8859-1 ). However, if you...
