jnizet

import java.io.IOException;
import jakarta.servlet.Filter;
import jakarta.servlet.FilterChain;
import jakarta.servlet.ServletException;
import jakarta.servlet.ServletRequest;
import jakarta.servlet.ServletResponse;
import jakarta.servlet.annotation.WebFilter;
import jakarta.servlet.http.HttpServletRequest;

jnizet

// Don't do

  return next(req).pipe(
    catchError(error => {
      const status = error.status;
      if (status === HttpStatusCode.BadRequest) {
        // ...
      } else {
        ...
      }

jnizet

public Pojo parseJson(String json) {
    // parse 
    return pojo;
    // don't catch the exception. If there is an exception, there is a bug, so you shouldn't catch it and ignore it
    // that will only cause a cryptic NullPointerException later.
}

public Mono<Pojo> query(long id) {

    Integer value = idMapper.getValue(id);

jnizet

import java.util.Arrays;
import java.util.stream.Collectors;

public class Benchmark {

    public static void main(String[] args) {
        System.out.println(Arrays.asList(1, 2, 3, 4, 5)
                                 .stream()
                                 .filter(i -> i > 10)
                                 .map(i -> {

jnizet

import java.io.IOException;
import java.nio.charset.Charset;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.util.Collections;

import com.fasterxml.jackson.databind.ObjectMapper;

public class MyCustomObject{
    private String appName;

jnizet

package com.example.demo;

public class Employee {
}

jnizet

package com.foo;

import java.io.IOException;
import java.io.Serializable;
import java.util.List;

import com.fasterxml.jackson.databind.ObjectMapper;

public class QnA implements Serializable {
    private long idQnA;

jnizet

import java.util.Arrays;
import java.util.Collections;
import java.util.HashSet;
import java.util.Set;

public class InterfaceTest {

    interface TestInterface {
        default Set<String> getRequiredStrings() {
            return Collections.emptySet();

jnizet

import { ComponentFixture, TestBed } from '@angular/core/testing';
import { Component, Input, OnInit } from '@angular/core';

@Component({
  selector: 'foo',
  template: 'hello {{ nameCopy }}'
})
class FooComponent implements OnInit {
  @Input() name: string;
  nameCopy: string;

jnizet

data class Course(val id: Long, val students: MutableSet<Student> = mutableSetOf())
data class Student(val id: Long, val courses: MutableSet<Course> = mutableSetOf())

fun main() {
    val english = Course(1L)
    val john = Student(1L)
    english.students.add(john)
    john.courses.add(english)

    println(john) // StackOverflowError