I&#39;m assuming you&#39;re referring to the `/WEB-INF` *directory* in the root of the web application folder structure.

No, it&#39;s not in the classpath.

`/WEB-INF/classes` is on the classpath though, and so are the JAR files in `/WEB-INF/lib`.

Additionally files in WEB-INF are protected against being requested by the web-container, i.e. they are invisible to the outside world.

I want to be able to distinguish between a generic and regular (non-generic) version of a class. Much like the .NET framework does with it&#39;s generic and non-generic versions of several of it&#39;s interfaces and collection classes. ([Queue][1], [Queue(T)][2])

I generally like to follow the convention of one class per file (as in Java). Is there a common convention for naming files containing a single generic class? I&#39;m mostly interested in Windows (NTFS specifically) but it seems like a good convention would be (at least a little) portable.


  [1]: http://msdn.microsoft.com/en-us/library/system.collections.queue.aspx
  [2]: http://msdn.microsoft.com/en-us/library/7977ey2c.aspx

Convention for Filenames of Generic Classes

Would you write xml-doc for a namespace? And if yes, how and where?

I would think, if it is possible, maybe an almost empty file like this:

    /// &lt;summary&gt;
    /// This namespace contains stuff
    /// &lt;/summary&gt;
    namespace Some.Namespace
    {

    }

But will that work? Since you... &quot;declare&quot;, or at least use the namespace in all the other files as well... and what would happen if you wrote an xml-documentation thing somewhere else on the same namespace? Would one be gone? Or would they be merged somehow?

XML-documentation for a namespace

Is the `WEB-INF` folder in the `CLASSPATH` of a Java Web application?

Is WEB-INF in the CLASSPATH?

<p>Is the <code>WEB-INF</code> folder in the <code>CLASSPATH</code> of a Java Web application?</p>


I am looking for a method to combine an array of strings into a delimited
String. An opposite to split().

Wanted to ask the forum before I try writing my own (since the JDK has everything)


A method to reverse effect of java String.split()?

By default, Tomcat sends some HTML content back to the client if it encounters something like an HTTP 404. I know that via `web.xml` an `&lt;error-page&gt;` [can be configured][1] to customize this content.

However, I&#39;d just like for Tomcat to **not send anything** in terms of response content (I&#39;d still like the status code, of course). Is there any way to easily configure this?

I&#39;m trying to avoid A) explicitly sending empty content on the response stream from my Servlet, and B) configuring custom error pages for a whole bunch of HTTP error statuses in my `web.xml`.

For some background, I&#39;m developing an HTTP API and am controlling my own response content. So for an HTTP 500, for example, I&#39;m populating some XML content on the response containing error information. For situations like an HTTP 404, the HTTP response status is sufficient for clients, and the content tomcat is sending is unnecessary. If there&#39;s a different approach, I&#39;m open to hearing it.

**Edit:**
After continued investigation, I still can&#39;t find much in the way of a solution. If someone can definitively say this is not possible, or provide a resource with evidence that it will not work, I&#39;ll accept that as an answer and try and work around it.

  [1]: http://wiki.apache.org/tomcat/FAQ/Miscellaneous#Q6

Disable all default HTTP error response content in Tomcat

This should be really simple. If I have a String like this:

    ../Test?/sample*.txt

then what is a generally-accepted way to get a list of files that match this pattern? (e.g. it should match `../Test1/sample22b.txt` and `../Test4/sample-spiffy.txt` but not `../Test3/sample2.blah` or `../Test44/sample2.txt`)

I&#39;ve taken a look at [`org.apache.commons.io.filefilter.WildcardFileFilter`][1] and it seems like the right beast but I&#39;m not sure how to use it for finding files in a relative directory path.

I suppose I can look the source for ant since it uses wildcard syntax, but I must be missing something pretty obvious here.

(**edit**: the above example was just a sample case. I&#39;m looking for the way to parse general paths containing wildcards at runtime. I figured out how to do it based on mmyers&#39; suggestion but it&#39;s kind of annoying. Not to mention that the java JRE seems to auto-parse simple wildcards in the main(String[] arguments) from a single argument to &quot;save&quot; me time and hassle... I&#39;m just glad I didn&#39;t have non-file arguments in the mix.)


  [1]: http://commons.apache.org/io/apidocs/org/apache/commons/io/filefilter/WildcardFileFilter.html

How to find files that match a wildcard string in Java?

&gt; **Possible Duplicate:**  
&gt; [Is Java “pass-by-reference”?](https://stackoverflow.com/questions/40480/is-java-pass-by-reference)  

&lt;!-- End of automatically inserted text --&gt;

I found an unusual Java method today:

    private void addShortenedName(ArrayList&lt;String&gt; voiceSetList, String vsName)
    {
         if (null == vsName)
           vsName = &quot;&quot;;
         else
           vsName = vsName.trim();
         String shortenedVoiceSetName = vsName.substring(0, Math.min(8, vsName.length()));
         //SCR10638 - Prevent export of empty rows.
         if (shortenedVoiceSetName.length() &gt; 0)
         {
           if (!voiceSetList.contains(&quot;#&quot; + shortenedVoiceSetName))
             voiceSetList.add(&quot;#&quot; + shortenedVoiceSetName);
         }
    }

According to everything I&#39;ve read about Java&#39;s behavior for passing variables, complex objects or not, this code should do exactly nothing.  So um...am I missing something here?  Is there some subtlety that was lost on me, or does this code belong on thedailywtf?

Java is NEVER pass-by-reference, right?...right?

How can I get the username/login name in Java?

This is the code I have tried...

    try{
        LoginContext lc = new LoginContext(appName,new TextCallbackHandler());
        lc.login();
        Subject subject = lc.getSubject();
        Principal principals[] = (Principal[])subject.getPrincipals().toArray(new Principal[0]);

        for (int i=0; i&lt;principals.length; i++) {
            if (principals[i] instanceof NTUserPrincipal || principals[i] instanceof UnixPrincipal) {
                String loggedInUserName = principals[i].getName();
            }
        }
    			
    }
    catch(SecurityException se){
        System.out.println(&quot;SecurityException: &quot; + se.getMessage());
    }

I get a `SecurityException` when I try to run this code. Could someone please tell me whether I&#39;m heading in the right direction, and help me to understand the problem.

Get login username in java

I&#39;m trying to add a directory to the classpath of an application run profile

If I override by using -cp x:target/classes in the VM settings, I get the following error:

    java.lang.NoClassDefFoundError: com/intellij/rt/execution/application/AppMain

Any idea on how to add a directory to the classpath for my project?

How to add directory to classpath in an application run profile in IntelliJ IDEA?

I&#39;m trying to call a class (main method) from command line (Windows) with Java.  
The class imports other classes (other jars).

I always get &quot;class not found exception&quot; from a class that my main program imports.

Here&#39;s what I tried:

- Add a CLASSPATH env. var with the path where the referenced lib resides (not working)

- I tried with all these different parameters when calling &quot;`java -jar myjar.jar`&quot; from command line : &quot;`-classpath lib/`&quot;, &quot;`-classpath ./lib/`&quot;, &quot;`-classpath lib`&quot;, &quot;`-cp lib/*`&quot;, &quot;`-cp lib/\*`&quot;, &quot;`-classpath lib/referenced-class.jar`&quot;, &quot;`-classpath ./lib/referenced-class.jar`&quot; (lib is where the referenced jar resides)

- I tried packaging all the referenced jar inside my jar where my main class resides...

- And with all that, I also tried to specify the classes inside the Manifest file with:
`Class-path referenced-jar.jar` and I also tried `Class-path lib/referenced-jar.jar`

Java: how to import a jar file from command line

Is it possible to add a file (not necessarily a jar file) to java classpath at runtime.
Specifically, the file already is present in the classpath, what I want is whether I can add a modified copy of this file to the classpath.

Thanks,

Adding files to java classpath at runtime

I have been using so many 3rd party libraries(jar files) that my CLASSPATH is completely messed up as i have to include the path for every single jar file that i use.

I&#39;ve been wondering if there is a way to include all the jar files in a folder using wildcard(*) operator (like *.jar). But it seems to be not working. Is there any other way that can shorten the CLASSPATH that currently looks like an essay ;) on my PC?.

How to use a wildcard in the classpath to add multiple jars?

I have a folder in my C: drive as `C:\app_config\java_app`
This folder contains some locale specific property files.

I have a java class (`PrjPropertilesLocator`) that loads the property files based on default locale on the startup of the web App.My web application is running inside tomcat.
The problem is how should i set this directory `C:\app_config\java_app` in the tomcat classpath so that this becomes available to the ResourceBundle inside the `PrjPropertilesLocator` class.
Is there a way i can set this folder specifically for a Single web app that needs it.I do not want to put the property files inside `WEB-INF/classes` folder.

On weblogic this runs fine.I set the directory inside the weblogic classpath in one of its startup scripts and it works fine.
But on Tomcat i tried putting it in `startup.bat` also in `setclasspath.bat`, but was not able to do so successfully.


Adding an external directory to Tomcat classpath

I&#39;m having this weird problem making my project Maven-based. I created a new **Maven** project in Eclipse and enabled the Dynamic Web facets. But during runtime now it throws `ClassNotFoundException` because the Maven dependencies are not copied to `WEB-INF/lib` directory. I even tried adding the *copy-dependencies* section in POM, but it didn&#39;t help.

Someone [here][1] seemed to have solved this the right way, but I guess he forgot to mention the solution ::(

  [1]: http://www.coderanch.com/t/488042/tools/maven-web-inf

Maven dependencies not visible in WEB-INF/lib

After these questions:

- https://stackoverflow.com/questions/8589315/jsf2-dynamic-template
- https://stackoverflow.com/questions/8786793/dynamic-uiinclude
- https://stackoverflow.com/questions/8911985/how-can-i-retrieve-an-object-on-windowscoped
- https://stackoverflow.com/questions/8939037/how-can-i-check-if-an-object-stored-with-windowscoped-is-stored-correctly
- https://stackoverflow.com/questions/9001426/ice-faces-and-error-in-creation-of-a-bean-in-windowscoped

that I wrote all to resolve a &quot;stupid&quot; issue for the JSF2 framework, the fact that I can&#39;t link directly to a page stored in a `/WEB-INF` subfolder. After that I did some research on Google and Stackoverflow I would know a thing: How do I structure a JSF2 web project? 

In particular, where exactly do I put the XHTML pages?

Which XHTML files do I need to put in /WEB-INF and which not?

I&#39;m working on a Java EE web application with the following source code directory structure:

&lt;!-- language: lang-none --&gt;

    src/main/java                 &lt;-- multiple packages containing Java classes
    src/test/java                 &lt;-- multiple packages containing JUnit tests
    src/main/resources            &lt;-- includes properties files for textual messages
    src/main/webapp/resources     &lt;-- includes CSS, images and all Javascript files
    src/main/webapp/WEB-INF
    src/main/webapp/WEB-INF/tags
    src/main/webapp/WEB-INF/views

The folder I&#39;m interested in is `WEB-INF`: It contains `web.xml`, XML files for setting up servlets, Spring bean wiring contexts and JSP tags and views. I&#39;m trying to understand what constrains/defines this structure. E.g. do JSP files always have to be within `WEB-INF` or could they be somewhere else? And is there anything else that might go in `WEB-INF`? Wikipedia&#39;s [WAR files](http://en.wikipedia.org/wiki/WAR_file_format_%28Sun%29) entry mentions `classes` for Java classes and `lib` for JAR files - not sure I&#39;ve fully grasped when these would be needed in addition to the other source file locations.

Content Type	Original Author	Original Content on Stackoverflow
Question	Shyam Kumar Sundarakumar	View Question on Stackoverflow
Solution 1 - Java	Jack Leow	View Answer on Stackoverflow
Solution 2 - Java	Thorbjørn Ravn Andersen	View Answer on Stackoverflow

Is WEB-INF in the CLASSPATH?

Java Problem Overview

Java Solutions

Solution 1 - Java

Solution 2 - Java

XML-documentation for a namespace

Convention for Filenames of Generic Classes

Attributions