Locating Native Method Libraries :: Calling Java from MATLAB (External Interfaces)

External Interfaces

Locating Native Method Libraries

Java classes can dynamically load native methods using the Java method java.lang.System.loadLibrary("LibFile"). In order for the JVM to locate the specified library file, the directory containing it must be on the Java Library Path. This path is established when MATLAB launches the JVM at startup, and is based on the contents of the file

```
$matlab/toolbox/local/librarypath.txt
```

(where $matlab is the MATLAB root directory represented by the MATLAB keyword matlabroot).

You can augment the search path for native method libraries by editing the librarypath.txt file. Follow these guidelines when editing this file:

Specify each new directory on a line by itself.
Specify only the directory names, not the names of the DLL files. The LoadLibrary call does this for you.
To simplify the specification of directories in cross-platform environments, you can use any of these macros: $matlabroot, $arch, and $jre_home.

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