Max White

I guess, I am missing the point. I understand that it can be made final, but then it's a reference to an object. Once I make it final, the reference can't be changed. Am I wrong?

Hi,
I have a task in java that is taking a bit long, so I implemented it using thread.
ExecutorService service = Executors.newFixedThreadPool(5); for(Map.Entry entry : map.entrySet()) { service.execute(new Runnable() { public void run() { doWork(entry); // error: can't have a non-final variable in an inner class // doWork() does the job. It's implemented in the same class } }); } service.shutdown();
My question is how do I segregate the task for an executor using an inner class?
I am using Java 1.6
Thanks

Hi,
I am using the following setup to deploy REST webservices & it works.

<web-app> <servlet> <servlet-name>RestServlet</servlet-name> <servlet-class>com.sun.jersey.spi.container.servlet.ServletContainer</servlet-class> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>RestServlet</servlet-name> <url-pattern>/*</url-pattern> </servlet-mapping> </web-app>

Using above setup, Tomcat scans WEB-INF/classes & WEB-INF/lib for the REST resources

I changed it to the following to use Application sub-class for deployment
<web-app> <servlet> <servlet-name>RestServlet</servlet-name> <servlet-class>com.sun.jersey.spi.container.servlet.ServletContainer</servlet-class> <init-param> <param-name>javax.ws.rs.Application</param-name> <param-value>test.MyApplication</param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>RestServlet</servlet-name> <url-pattern>/*</url-pattern> </servlet-mapping> </web-app>

But still the server is scanning WEB-INF/classes & WEB-INF/lib for the REST resources

It seems to ignore the Application sub-class config in web.xml.What am I missing?

I am using Tomcat 6.0

Thanks

Hi,
Do the following change and then try

<servlet-mapping> <servlet-name>Jersey REST Service</servlet-name> <url-pattern>/*</url-pattern> </servlet-mapping>

instead of

<servlet-mapping> <servlet-name>Jersey REST Service</servlet-name> <url-pattern>/rest/*</url-pattern> </servlet-mapping>

Hope you got the point.

Hi,
I was trying something and came across the below scenario.
try{ //blank }catch(SqlException s){}
When I try to compile the above code ,I get a compilation error-> Unreachable catch block..(as there is nth in the try block to throw SQLException)
But if I change the above code to
try{ //blank }catch(Exception s){}
It compiles without any error.
Why Exception class is being given a special treatment?
Thanks.

Thanks Tsuji.I got my mistake

Hi,
I am trying to convert the attribute text to upper case.
Sample xml -

<data> <emp name="john"> <id>A1</id> <city>aaa</city> </emp> <emp name="ken"> <id>B1</id> <city>bbb</city> </emp> </data>

xsl -
<xsl:stylesheet ... > <xsl:template match="*|text()"> <xsl:copy> <xsl:apply-templates select="node()"/> </xsl:copy> </xsl:template> <xsl:template match="@*"> <!-- I plan to use translate function here.But to ensure that I am on the right path , I tried to copy the attribute contents(as below)--> <xsl:copy> <xsl:apply-templates select="@*"/> </xsl:copy> <!-- This does not copy the attribute contents--> </xsl:template> </xsl:stylesheet>
The output xml contains everything from the source xml but the attribute.
What's wrong in the template, matching attribute?

Thanks

Hi,
I am new to xslt and got stuck on 2 things.

1. Every xsl file needs the following element.
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"> . . </xsl:stylesheet>
According to the document the namespace can be any unique string, but if I change the string or just the case of any of the alphabet ,I get the following error-
XSLT error ( TransformerConfigurationException) : stylesheet element needs attribute : version
Note : I am using xalan for processing.

2.I have a following xml
<data> <info> <first>first</first> <second>second</second> </info> </data>
and xsl, to copy the above xml.
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"> <xsl:template match="/"> <xsl:apply-templates/> </xsl:template> <xsl:template match="info"> <xsl:copy-of select="."/> </xsl:template> </xsl:stylesheet>
It works fine but if I change the xls to
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"> <xsl:template match="/"> <xsl:apply-templates [b]select="info"[/b]/> </xsl:template> <xsl:template match="info"> <xsl:copy-of select="."/> </xsl:template> </xsl:stylesheet>
The change is within [b]
I get an empty file.My question is why?Isn't "info" descendent of root element "data"?Doesn't "/" represent root element,in this case "data"?

Thanks.

Thank you all for the answers.
Gurpeet is right,case 1 wont compile.Its my mistake.

Hi,
When I use the following code ..
public class Test { private static String a; public void print(){ sop("a"+a); } }
or the following
public class Test { private final String a; public void print(){ sop("a"+a); } }

The code gets compiled.

But not when I use the following
public class Test { private static final String a; public void print(){ sop("a"+a); } }

Error : Final variable may not have been initialised.

My doubt is that it works if I just use either a final or a static variable and the variable gets the default value of null.
Why does it not work with static final ?

I am sorry Junilu.
I know about the recent changes.My question was out of curiosity.
As you can see in the code , whats the need of having synchronized block after the line which checks for not null instance?
What if we put the not null check within the synchronized block?

Second,how to implement the singleton in a distributed environment(more than one jvm) so that there is only one instance of Singleton class.

Thanks for your time.

Hi ,
I have the following doubt in the singleton pattern.
public static TestClass getInstance(){ if(mInstance == null){ synchronized(this){ if(mInstance == null) mInstance = new TestClass(); } } return mInstance; }
Kindly ignore the typing errors in the above code.The point at issue is, if we write the code as I did above, it results in double-checked locking.
So, if I change the code as shown below, would it be correct & free from double-checked locking?
public static TestClass getInstance(){ synchronized(this){ if(mInstance == null) mInstance = new TestClass(); } return mInstance; }

Second,how to implement the singleton in a distributed environment(more than one jvm) so that there is only one instance of Singleton class.
Thanks.

Hi,
I have the following content in the html response

<input type=hidden name=test value='testValue'>
I have to extract the value of the above input tag.I have tried both regexp and xpath extractor but neither is working for me.

regexp pattern
<input\s*type=hidden\s*name=test\s*value='(.+)'> Template - $1$ Match No. - 1
I tried the below pattern also
^<input\s*type=hidden\s*name=test\s*value='(.+)'>$

I verified the above pattern in java & it works.I was able to fetch the value with matcher.group(1)

xpath query
//input/[@name='test']/@value

In XPATH Assertion listener I got the error -> No node matched
I modified the xpath query to below
//input/[@name]

The above does not give any error.The moment I add the actual name,I get the error -> No node matched.

Kindly suggest me how to resolve the issue.

It's not public unless you use the keyword.

Could you get the code of the method adding 2 numbers?