MATLAB: Do I receive an error when I am attempting to use the WebFigures example using Builder JA 2.0.3 (R2009a)

apacheMATLAB Compiler SDKtomcatwebfiguresquickstart

I am attempting to use the WebFigures feature provided by MATLAB Builder JA 2.0.3 (R2009a). I am working with the WebFigureQuickStart example provided in the documentation. However, when I attempt to create the default WebFigure, I receive the following error message:

 HTTP Status 500 - type Exception report message
 description The server encountered an internal error () that prevented it from fulfilling this request.
 exception
 org.apache.jasper.JasperException: The absolute uri: <http://www.mathworks.com/builderja/webfigures.tld> cannot be resolved in either web.xml or the jar files deployed with this application
 org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:51)
 org.apache.jasper.compiler.ErrorDispatcher.dispatch(ErrorDispatcher.java:409)
 org.apache.jasper.compiler.ErrorDispatcher.jspError(ErrorDispatcher.java:116)

Why do I receive this error?

Best Answer

A Tag Library Descriptor (TLD) file is required for using custom JSP tags. The 'webfigures.tld' file is included within 'javabuilder.jar'. If there are more than one "javabuilder.jar" files, possibly of different versions, on the web server, the intended 'webfigures.tld' file will not be resolved correctly and thus the above error message will be generated.

To resolve the issue, check that there is only one copy of "javabuilder.jar" in the web server's common library directory. If you are using an Apache Tomcat Web Server version 6.0, place the "javabuilder.jar" file in the "lib" folder in the Tomcat installation directory.

For example, if the home directory of Tomcat server is declared as CATALINA_HOME environment variable then the javabuilder.jar should be placed in CATALINA_HOME/common/lib directory."

Related Solutions

MATLAB: Do I receive a “java.lang.OutOfMemoryError: Java heap space” error after upgrading to Database Toolbox 3.5.1 (R2009a)

In Database Toolbox 3.5.1 (R2009a) the default value of the JDBC property 'defaultRowPrefetch' was changed from 10 to 10000. This change should increase the performance of the toolbox, however it will also increase the memory requirements of the toolbox.

To prevent the out of memory error from occuring, you can change this property back to its default value; below instructions for this are given for different versions of the toolbox:

To change the property in Database Toolbox 3.5.1 (R2009a):

After creating the connection:

conn = database(....);

Run the following code:

h = conn.Handle;
h.setDefaultRowPrefetch(10);

To change the property in Database Toolbox 3.6 (R2009b):

Run the following code:

setdbprefs('DefaultRowPrefetch','10')

MATLAB: Do I receive a java.lang.IllegalArgumentException error message when starting MATLAB Compiler

This may be an issue with either your toolbox cache not being up to date or having insufficient privileges to your pathdef.m file.

Try running the following commands in MATLAB:

>> rehash toolboxcache
>> savepath

Afterwards, try starting up MATLAB Compiler again. If the above commands return with any error about permissions error with the pathdef.m file, try placing the file in your MATLAB working directory.

The pathdef.m file should be located in your $MATLABROOT\toolbox\local (for Windows) or $MATLABROOT/toolbox/local (for macOS and Linux).

$MATLABROOT being your MATLAB installation directory.

Best Answer

Related Solutions

MATLAB: Do I receive a “java.lang​.OutOfMemo​ryError: Java heap space” error after upgrading to Database Toolbox 3.5.1 (R2009a)

MATLAB: Do I receive a java.lang.​IllegalArg​umentExcep​tion error message when starting MATLAB Compiler

Related Question

MATLAB: Do I receive a “java.lang.OutOfMemoryError: Java heap space” error after upgrading to Database Toolbox 3.5.1 (R2009a)

MATLAB: Do I receive a java.lang.IllegalArgumentException error message when starting MATLAB Compiler