I have a method that accepts a list of object. I want to iterate through that list and check if the list has more than 3 elements. If it does, I want to throw e
Is there a way to tune the DocLint (-Xdoclint) to allow new tags in javadocs? Right now i get errors like: error: unknown tag: checkstyle * @checkstyle Pa
Consider below class hierarchy. class ClassA { private void hello() { System.out.println("Hello from A"); } } interface Myinterface { defa
To allow multiple iterations on the resulting stream from a CompletableFuture<Stream<String>> I am considering one of the following approaches: Con
TL;DR: After installing my CA in a Docker container from image eclipse-temurin:8-jre-alpine I still get javax.net.ssl.SSLHandshakeException: Received fatal aler
I have a Page of Farmers coming from a JPA repository call findAll method. Each Farmer consists of a Set of Farms which are also coming in the repository call l
I have something like this: Integer totalIncome = carDealer.getBrands().stream().mapToInt(brand -> brand.getManufacturer().getIncome()).sum(); Integer total
I want to accomplish the same thing as this question: Disable automatic Wadl Generation for OPTIONS request, but we don't have a web.xml file. We also make use
@ExceptionHandler({ ConstraintViolationException.class }) public ResponseEntity<Object> handleConstraintViolation(ConstraintViolationException ex, WebRequ
I have a Kubernetes deployment that deploys a Java application based on the anapsix/alpine-java image. There is nothing else running in the container expect for
I pass the below value to jvms hosted on Jboss : <option value="-XX:+PrintGCDetails"/> <option v
enter image description hereI'm very new to the Java world so please forgive my ignorance. What is the optimal way to create 1000 New directories in Java? kn
If I have a collection and I want to iterate over a filtered stream then I could do either of the following (and many more obtuse options): for(item in collect
I have two functions solving the same problem. The first uses a sequential stream, and the second uses a parallel stream. public static int digitalRoot(int n)
I can't get my head around the difference between thenApply and thenCompose. So, could someone provide a valid use case? From the Java docs: thenApply(Function&
I'm trying to figure out how to write a stream in Java 8 that removes duplicate records based on a property and a condition, for example: +----+----------------
I want to transform an ObservableMap's keySet to a read only ObservableSet. I don't want to copy the value, any modification to the ObservableMap must affect th
I could sound naive asking this question but this is a problem that I have recently faced in my project. Need some better understanding on it. df.persist(Stora
I want to display the String pattern aaabbcc to be displayed as 3a2b2c in java8 using streams I have a working example in lower versions String str = "aabbcccdd
I very much want to use Map.computeIfAbsent but it has been too long since lambdas in undergrad. Almost directly from the docs: it gives an example of the ol