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POMatlab doesn't see .jar file
 

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    <p>Ok, I'm stumped here. I'm using Matlab version 2013b with a Java RTE of 1.7.0_11 and I'm trying to run a simple piece of code to see if Matlab is able to read the .jar file and nothing seems to be working.</p> <p>Here is the Java code, which is compiled to a .jar named JavaOCT.jar, which is placed in the Matlab working directory:</p> <pre><code>package VTK; public class vtkVolumeView{ public int Test(){ return 10; } } </code></pre> <p>That is it, no other dependencies, nothing fancy. In Matlab, I try:</p> <pre><code>javaaddpath('\JavaOCT.jar'); %&lt;-Directory and name are 100% correct import VTK.*; %&lt;-Package name from above methodsview VTK.vtkVolumeView; %&lt;-Can't find the class, argh! </code></pre> <p>Matlab kicks back that it can't find the class.</p> <p>Things I've done to try and solve the problem:</p> <ol> <li>Reverted to the exact same JDK as the Matlab RTE</li> <li>Tried an older 1.6 JDK</li> <li>Done lots of stack overflow research to try and solve it <a href="https://stackoverflow.com/questions/9520503/calling-java-from-matlab">1</a> <a href="https://stackoverflow.com/questions/14219589/matlab-javaaddpath-not-working-anymore-with-jar-built-with-jdk-1-7">2</a> <a href="https://stackoverflow.com/questions/8499890/matlab-cannot-see-some-of-my-java-classes-not-all-in-jar-package">3</a> <a href="https://stackoverflow.com/questions/11053664/use-java-in-matlab">4</a></li> <li>Tried used <code>javaclasspath</code> and pointing to the compiled class instead</li> <li>Read the Matlab documentation <a href="http://www.mathworks.com/help/matlab/matlab_external/bringing-java-classes-and-methods-into-matlab-workspace.html" rel="nofollow noreferrer">5</a> </li> <li>Using <code>clear -java</code> after the <code>javaaddpath</code></li> </ol> <p>Any help would be appreciated, it is driving me nuts!</p> <p>Update: Daniel R suggested just <code>javaaddpath('JavaOCT.jar')</code> which doesn't work either.</p> <p>Final update: It finally works! I wasn't building the .jar properly. In IntelliJ, click on the project and hit F4. This brings up the Project Structure, then go to Artifacts and click the green + button and add <code>DirectoryContent</code> and then point to the <code>out\production</code>. Once this is done, as mentioned by others, it should show up in Matlab as an expandable .jar.</p>
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    1. COYou need to add the full path and it should NOT be in the MATLAB's directory.
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    2. COIt is, the `javaclasspath` shows the exact location, including the .jar extension of the JavaOCT.jar file using either Daniel R's method or the original method above. There is no warning error as is seen when a bad path is given to `javaaddpath`
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    3. COCan you post the output of javaclasspath, just the relevant lines with <Dynamic...> etc.?
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