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I am trying to check if methods that acquire a resource also release it. What is the best tool to use to find out callers of a method in the classes in a single jar file? Can I do this with CheckStyle or FindBugs? How?
I guess I can do this using BCEL or such-like, but I have never worked with byte-code before and would take too long to do this.
Searching for "java call graph" did not find anything useful, but this seems to be a very basic functionality so I probably missed a good match. However, I would like to not have to generate the entire call graph on this very large project.
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Does anyone know how to find some variables not used in Netbeans, like when I create the variable String a and I hover over that variable I get the info Variable "a" is not used?
I want to jump into that variable because in my servlet there are too many lines.
I'm not aware of any functionality that comes out of the box. But some third party tools offer you what you are searching for:
PMD (especially this rule). There's also a NetBeans plugin although I don't know if it works with the newest version of NetBeans.
SpotBugs (search for unused in the documentation to find the rules)
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Any idea?
How can I generate documentation using already present code in java class / classes. As the java class changes, I would want it to reflect in documentation automatically.
Regards
Monica Soni
There are some tools available on the market that scan your code and generate a documentation for it. A known tool which does it, and my favourite, is Javadoc. It also allows you to add annotations to the code which later be reflected in the documentation.
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I have recently join a team in an organization. they have assign me a project. now I have the project source code build in GWT and Java. I have imported the project in my eclipse. Now I can not figure out how to start looking into it as it contains so many packages and java files.
Firstly you should understand what your code does in terms of business cases, and then high-level analyze it, without spending tons of time trying to figure out why each line of code is written, and when you will get it, life will become easier
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I want to write a piece of Java code to call Eclipse quick fix and print all its suggestions in the console.
As an example, if I have a reference to an undefined variable, then the compiler error will be cannot be resolved to a variable. In this case, Eclipse suggestes some fixes such as Create Local Variable, Create Field, or Create Parameter. In my project I want to print this three suggestions as output.
I saw this page, but not useful.
Please let me know what is the best way to do this task.
The solution is to extend org.eclipse.jdt.ui.quickFixProcessors plug-in, and also extends IJavaCompletionProposal interface.
This web page describes all details that you need. It is in Germany, but I am sure you can use Google translator to have it is English. Hope, it helps.
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I have to make app using java technology and it should work same as drop box is working. So can you suggest how to start or which jar is required for it?
From the question it looks like you are new to Java. So your best bet would be to use an existing library to do the sync. Java is often not considered the ideal choice for file intensive tasks due to performance issues.
eg:
http://jfilesync.sourceforge.net/
Also see this: https://stackoverflow.com/questions/2283958/java-folder-synchronisation-class-library