Java object - internal error, the Page cannot be displayed

Hello!
I'm trying to define an instance of my own Java class, but whenever I call the page, in which I make the instance I get this error "HTTP 500 Internal Server Error." - the Page cannot be displayed
I use the following code:
---------------------------------------------------------
Java file, I put the class file in the folder "CFusionMX7\wwwroot\WEB-INF\classes".
public class SimpleMath {}

public int addNumbers (int num1, int num2) {}

Return num1 + num2;
}
}
-----------------------------------------
I use the following code in my web page

< cfset MyObject = createObject ("java", "SimpleMath") >
< cfset myObject.addNumbers = result (25,25) >
< cfoutput > the result is: #result # < / cfoutput >

We consider a computer where Java is installed. The goal is to start from scratch with just the basics.

(1) delete or backup the files of current test SimpleMath.* in CFusionMX7\wwwroot\WEB-INF\classes;
(2) restart Coldfusion;
(3) open an editor, for example Notepad and type public class SimpleMath {public int addNumbers (int num1, int num2) {return num1 + num2 ;}} .}} Using the file => record under and select the all files option for Save As Type:, save the file as SimpleMath.java in the CFusionMX7\wwwroot\WEB-INF\classes\ directory.
(4) open the command prompt and navigate to the directory until the cursor is located at:
C:\CFusionMX7\wwwroot\WEB-INF\classes >;
Type 5) javac-source 1.4 - target 1.4 SimpleMath.java and press ENTER to compile the file. The options of the source and the target to ensure that the file is compiled into Java version 1.4, which is compatible with Coldfusion. (A review, for example, when there is also Java 1.5 on the machine);
(6) open the web page containing your code.

Tags: ColdFusion

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