Landscape table or image in LaTeX

A thumb rule for landscape table or image in LaTeX:

1. If you are using latex+dvips+ps2pdf, use the sidewaystable or sidewaysfigure or just sideway environment in rotating package.
2. If you are on pdflatex, use the landscape environment in pdflscape package instead. sideway prodices a sideway table/figure, but has problem to produce a right landscape view of the page in the pdf file.

For the second option, you might also need the afterpage package to have a properly floating page for the landscape table/figure without a half-blank page before it. The environment is like

\afterpage{
\clearpage
\thispagestyle{plain}
\begin{landscape}
\begin{table}[htp]
% your table here
\end{table}
\end{landscape}
\clearpage
}

Authentication in embedded Jetty 7 server

A change in Jetty security from 6 to 7 is the introduction of LoginService, which was designed to replace UserRealm based approach. The usage of LoginService can be seen in the example SecuredHelloHandler and the test case of SecuredContentExchangeTest . Basically, the LoginService needs to be attached to a SecurityHander, and the SecurityHandler needs to wrap the handler that needs the authentication service. This can be done by either

securityHandler.setHandler(yourHandler);

or

ServletContextHandler theContext = new ServletContextHandler(handlerContainer, contextPath, sessionHandler, securityHandler, servletHandler, errorHandler);

Aptana Studio 2.0.5 on Ubuntu 10.04

Aptana Studio 2.0.5 used to work well in my Ubuntu 9.04. It started to split out error message related to xulrunner after I updated Ubuntu to 10.04. When I removed the Apatana and its workspace, it even stopped to show the messages and silently crashed. After digging and trying for almost an afternoon, I fixed the problem by adding this line to the AptanaStudio.ini file:

-Dorg.eclipse.swt.browser.XULRunnerPath=/usr/lib/xulrunner-1.9.2.13

You might change the path to whatever on your system. Note that there is a /usr/lib/xulrunner directory on my system, but that does not contain or link to the real literary files. I did not try if export the $MOZILLA_FIVE_HOME to the real xulrunner lib path will also work.