CS520 HW1

Homework 1
CS520, Fall 2012

Due: Thursday, October 4

[Readings]

Subversion Book - Chapter 1 and 2, and the Tags section in Chapter 4

[Account] Send an email to csun@calstatela.edu and ask for account information on the CS3 server. You have to be already enrolled in the class in order to get an account. Note that the account includes a Subversion repository, and a copy of the CSNS2 source code is already imported into the repository for you.

[Development Environment] Check out the CSNS2 source code from your Subversion repository, and set up your development environment as described in the class notes. If you have any questions, post them in the class forum. To avoid confusion, in the assignment descriptions I'll use CSNS2 (i.e. without hyperlink) to refer to the project, and CSNS (i.e. with hyperlink) to refer to the server where you submit your work.

[CSNS] (15pt) Modify the JSP file src/main/webapp/WEB-INF/content/exception/default.jsp to change "Please check out CSNS Wiki for possible causes and solutions" to "Please see the log file for the details of the exception".

Run the project, log in as the user cysun, and go to the URL http://localhost:8080/csns2/submission/list?assignmentId=1000503, and the Runtime Error page should show up. Open the log file, locate the error message, and answer the following question:

The runtime error is caused by which of the following exceptions?

a) NullPointerException
b) IllegalArgumentException
c) NumberFormatException
d) SpelEvaluationException
e) AccessDeniedException

Please put your answer in a file hw1.txt and submit it to CSNS.

[Maven] (5pt)

To submit your code, run mvn package (or the equivalent in Eclipse), which will package your project into a zip file csns2-src.zip. You can find the file under the target folder of your project directory. Please upload the zip file to CSNS. Note that the size of the zip file should be around 520K, and if yours is much larger than that, you are doing something wrong (and most likely it's because you have some files under the project directory that do not belong there).

[Subversion] (10pt)

1. After you complete the previous two exercises, commit the changes you've made to your Subversion repository, then create a tag called cs520-hw1.

2. Which of the following files should be version controlled? And why?

Class files compiled from the source code.
Other files generated during the build process, e.g. files under the target folder.
build.property file which contains the information about the development environment, e.g. file paths and database information.
Files created by Eclipse, e.g. .project and .classpath.

Please put your answers to these questions in the file hw1.txt and submit it to CSNS.