I need to compare two objects of the same class excluding some fields. How can i find if the two objects of the above class are equal excluding createdAt and updatedAt values? Since there are a lot of fields in this class, i don’t want to compare each of them one by one. Please don’t give AssertJ&…
Tag: java
How to solve error: package org.springframework.context.annotation does not exist import org.springframework.context.annotation.Bean?
After updating the gradle wrapper to version 7.3.2 I get the following error when trying to build my spring boot project: Why is this happening? Update: Found the problem, but do not know how to fix yet. I have multiple modules in my project. I have a “common” module which is used by other modules…
Quarkus tests fail while doing mocking with jmock resulting in “No code generation strategy available”
When running my Quarkus tests in combination with jmock I run into: This is what I have setup jmock with: To make matters worse: This all works on the command line but not within Eclipse. Answer This is due to the JRE/JDK that Eclipse selects to run your tests. These tests should be run using a JDK only, the …
Use a value in MySQL query in multiple lines without a variable
I have this mysql query that uses the same value I’m passing, 3 times over. Is there any way to make this query without me having to type the below And just use this Answer
Reducing ArrayList using MyClass attributes
I have a class, MyClass, like this: If I want to get the sum of amount in an ArrayList of MyClass items, usually I would do this: But now to improve performance, I am trying to use Stream.reduce(). My approach: Is there a better way to do so? And how would the reduction be affected if currAmount or nextAmount…
Jprofile to analysis meomery leak in hprof where there is plenty of hashmap entries
I took over a JAVA-WEB based SOA system recently and it doesn’t runs that well untill now. One of the springboot applications will take up up to 100% of the CPU use. By using jastack I get to know that most of the Cpu use was made by GC threads, for there are something in jvm that cannot be collected
Set value for private final static inlined variable using Mockito
I’m trying to test a method which calls another method which makes use of a private final static variable initialized inline. I’m then trying to change the value for the variable when the tests run. I’ve been trying things such as spring reflection or adding a setter for that specific field …
Is the System.gc() call in sun.nio.ch.FileChannelImpl a bad case?
From jdk/FileChannelImpl.java at jdk8-b120. Does this help with exception recovery? Answer When an object allocation fails with an OutOfMemoryError, the garbage collector did already try its best to reclaim memory of unused objects or expanding the heap. So calling System.gc() after catching OutOfMemoryError …
Java rock-paper-scissors program does not print right output
I want my program to display what the computer chose. But instead, it sometimes does not, or sometimes it does display The computer chose Rock The computer chose Paper The computer chose Scissors This happens even if i follow the same input pattern. Output when the user inputs 1 , 2 , 3 in order- Similarly, o…
Java – Check if user input partialy matches another string?
I have a problem where i want to see if the input user has enterd partially matches, or as long as majority matches with the answer, if it does then it should print out “Almost correct”. For example lets say the answer is Football, but user instead puts in Footbol. It should then print out Almost …