List<User> sortedList = userList.stream() .sorted(Comparator.comparingInt(User::getAge).reversed()) .collect(Collectors.toList()); sortedL
I have a class only to store variables as keys like: public class V { public static final String SHOW_OR_FOUND = "show_or_found"; public static final in
Currently I have many spring boot services annotated with @Service. Every service works fine and there are no problems. There is a problem only with LogsService
I'm trying to get the values from an excel sheet of 2 rows, the 1st row are the headings and the second row is the data, when I execute the code the 1st set of
When I use 'try(){} catch' to deal with autoclosable object, findbugs report a bug that I don't check nullale for the instance populate in the '()' segment. So
public List<Order> getAllOrdersByCustomerId(int customerId) throws SQLException { List<Order> AllOrdersByCustomerId = new Arra
I am developing an app that controls arduino with bluetooth , everything was working fine with the app , I am able to connect with the arduino bluetooth bridge
I want to add an ImageIcon to the Panel, but I got this Exception ( java.lang.NullPointerException: Cannot invoke "java.net.URL.toExternalForm()" because "locat
I am receiving a null pointer exception when trying to launch an instance of excel to export data to. I have tried adding the newest version of COM4J.jar to my
I got the following error while running a simple helloworld sample drools project. 199 [main] ERROR org.drools.compiler.kie.builder.impl.KieContainerImpl - Unk
I want use @Nullable annotation to eliminate NullPointerExceptions. I found some tutorials on the net, I noticed that this annotation comes from the package j
I have an app with 100 installs done but I have 2 error on java.lang.NullPointerException; the thing is that when that error came in my device or emulator I cou
According to this video https://www.youtube.com/watch?v=n_Y7r-7GxDo I need to place the icons in the main package. Even after this, I get the same error packa
According to this video https://www.youtube.com/watch?v=n_Y7r-7GxDo I need to place the icons in the main package. Even after this, I get the same error packa