my problem is when parameter is NOT null I want to concatenate a string to parameter and show it else I want to return null to show nothing but it always showing the string part which is in my example below is HELLO even if the parameter is null

my problem is when parameter is NOT null I want to concatenate a string to parameter and show it else I want to return null to show nothing but it always showing the string part which is in my example below is HELLO even if the parameter is null

my problem is when parameter is NOT null I want to concatenate a string to parameter and show it else I want to return null to show nothing but it always showing the string part which is in my example below is HELLO even if the parameter is null

my problem is when parameter is NOT null I want to concatenate a string to parameter and show it else I want to return null to show nothing but it always showing the string part which is in my example below is HELLO even if the parameter is null

my problem is when parameter is NOT null I want to concatenate a string to parameter and show it else I want to return null to show nothing but it always showing the string part which is in my example below is HELLO even if the parameter is null

my problem is when parameter is NOT null I want to concatenate a string to parameter and show it else I want to return null to show nothing but it always showing the string part which is in my example below is HELLO even if the parameter is null

my problem is when parameter is NOT null I want to concatenate a string to parameter and show it else I want to return null to show nothing but it always showing the string part which is in my example below is HELLO even if the parameter is null

my problem is when parameter is NOT null I want to concatenate a string to parameter and show it else I want to return null to show nothing but it always showing the string part which is in my example below is HELLO even if the parameter is null

my problem is when parameter is NOT null I want to concatenate a string to parameter and show it else I want to return null to show nothing but it always showing the string part which is in my example below is HELLO even if the parameter is null

I am currently facing a challenge in JasperReports where I aim to display all items of a category on a single page without empty space. I’m displaying each new category in new page so if the’re more items then it will print some items on new page, so if there’s 1-2 items in new page so the other space is stay remained.