Why am i getting ” Duplicate modifier for the type Test” and how to fix it
Because you have there. The obvious way to fix that: remove the first one. And next time: pay attention to what the compiler is trying to tell you.
java
java.lang.VerifyError: Inconsistent stackmap frames at branch target 421
After a much effort I found the issue. There was duplicate classes for CGError and CGResponse in two different libraries. So I guess the ones that were used in the compile time may differ to ones loaded in running time. Anyhow resolving the duplicate classes did the trick, and resolved this issue. PS: don’t wast … Read more
Response has aready been committed
Firstly, the problem is not in the JSP or JS in your example1. The problem is in what your servlet does when it gets the “…/abcHandler.do?operation=view;” request. The problem is that you are trying to do stuff that would require a change to the HTTP response headers … after the headers have been sent. That … Read more
Why are two empty ArrayLists with different generic types equal?
Look the doc for the equals() method of ArrayList Returns true if and only if the specified object is also a list, both lists have the same size, and all corresponding pairs of elements in the two lists are equal. Since there are no elements, all the conditions satisfied and hence true. If you add elements to the both list (atleast … Read more
java array error “array required but int found”
The parameter arrayFreeCode is declared as an int in your method, yet you treat it as an int[].
What’s the reason I can’t create generic array types in Java?
It’s because Java’s arrays (unlike generics) contain, at runtime, information about its component type. So you must know the component type when you create the array. Since you don’t know what T is at runtime, you can’t create the array.
Joda DateTime to Timestamp conversion
It is a common misconception that time (a measurable 4th dimension) is different over the world. Timestamp as a moment in time is unique. Date however is influenced how we “see” time but actually it is “time of day”. An example: two people look at the clock at the same moment. The timestamp is the same, … Read more
What are mock objects in Java?
A Mock object is something used for unit testing. If you have an object whose methods you want to test, and those methods depend on some other object, you create a mock of the dependency rather than an actual instance of that dependency. This allows you to test your object in isolation. Common Java frameworks … Read more
try catch ArrayIndexOutOfBoundsException?
I don’t see an array anywhere in your code, so that’s maybe why the try block isn’t catching anything (I assume there is an array in one of the called methods?). Also, you really, really shouldn’t allow your program to read outside the bounds of an array. That’s just bad design. That being said, here … Read more
Fatal error compiling: tools.jar not found:
Goto Windows -> Preferences Java -> Installed JREs –> Execution Environment JavaSE1.x -> JDE 1.x If you don’t have the JDK in the Installed JRE, then Select the Installed JRE and Add the JDK installed path Let’s try to configure your run configurations to clean install Click on the small black arrow and then Run Configurations After, you just put clean install in your Maven goal, like this : And … Read more