Is this normal or concurrent issues?

Question

Hi experts, I have the following code, problem listed at end of code:
In dataBean.java
private static final String data[][] = {{"S1","0"},{"S2","0"},{"S3","0"},{"S4","0"},{"S5","0"},{"S6","0"}};
public String[][] getData() { return data; }In data.jsp
<jsp:useBean id="dataBean" class="com.data.dataBean" scope="page"/>
<%
String selectionResult[][] = dataBean.getData();
if(session.getAttribute("S1")!=null){selectionResult[0][1]="S1";}
if(session.getAttribute("S2")!=null){selectionResult[1][1]="S2";}
if(session.getAttribute("S3")!=null){selectionResult[2][1]="S3";}
if(session.getAttribute("S4")!=null){selectionResult[3][1]="S4";}
if(session.getAttribute("S5")!=null){selectionResult[4][1]="S5";}
if(session.getAttribute("S6")!=null){selectionResult[5][1]="S6";}
%>In browser 1: session attributes S1 has data and the rest is null.
In browser 2: session attributes S4 has data and the rest is null.
When I used a loop to display the selectionResult[][] for these two different browsers, they display like this:
Browser 1: S1 null null S4 null null
Browser 2: S1 null null S4 null null
instead of
Browser 1: S1 null null null null null
Browser 2: null null null S4 null null
Can any experts tell me where I've done wrong? Thanks in advance.

Answer 1

I always realised I've no problems when I go to the doctor.
I seem to have find out the problem, I've declared static final in my dataBean.java, I remove these two keywords and it work alright.
I do still have a question though, I didn't declared static final in my jsp, so why is it behaving in this manner?
For example I've this variable and method:
static final String abc[][] = {{"A","0"}}
public String[][] getAbc() {return abc;}and I call getAbc by String[][] xyz = getAbc()is my xyz also static final variable too?