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The error looks like: org.hibernate.PersistentObjectException: detached entity passed to persist: example.forms.InvoiceItem at org.hibernate.event.def.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:127) at…
Its a common problem when working one to many, many to many jpa relation. Sometimes providing the bad configuration occurs…
This is a typical bidirectional consistency problem. The solution is very simple, Solution: Just use the CascadeType.MERGE instead of CascadeType.PERSIST…
There error looks like: 2015-07-31 14:52:42 [http-nio-8002-exec-2] DEBUG o.s.s.w.a.ExceptionTranslationFilter - Access is denied (user is anonymous); redirecting to authentication entry…
How do I populate a drop down with a list using thymeleaf and spring Solution: My View List test =…
How to print value in textarea in thymeleaf Solution: Its very simple to print data in text-area using thymleaf…
How to populate dynamic table in thymeleaf Solution-1: <table class="table table-hover"> <tbody> <tr th:each="mr.iterStat : ${list}"> <td th:text="${mrr.id}"></td>…
How to pass id in href tag in thymeleaf Solution: The right way according to Thymeleaf documention for adding parameters is:…
Failed to configure a DataSource: 'url' attribute is not specified and no embedded datasource could be configured. Reason: Failed to…
com.mongodb.MongoSocketReadException: Prematurely reached end of stream The error was solved by the format of connection (using the parameters maxIdleTimeMS, ssl and authSource): maxIdleTimeMS -…
org.hibernate.HibernateException: Access to DialectResolutionInfo cannot be null when 'hibernate.dialect' not set The problem looks like: Caused by: org.hibernate.HibernateException: Access…
Laravel ajax dynamic dependent dropdown list. In this post, i will sho you how to create dynamic subscategories dependent dropdown…
Its a common problem, when you are working on spring boot security with in memory database like h2 database. Spring…
Hi Devs, Today I am going to show you how to create a simple spring boot project from scratch. Go…
Hi devs, Today we will desing the login form using Bootstrap and css. so lets start... Output: Design Login form…
Hi devs, Today we will design the simple registration form using bootstrap and css. Output: html-registration-form register.html In the header-part,…
Hi devs, Today we will design a product list carousel for e-commerce website using bootstrap and css. Output: product-list folder-structure:…
In this article, we are converting array to arrayList in Java. We will discuss three different ways to do that.…
Is java pass by reference? The answer is NO. Java is always pass-by-value. Today we will learn java pass by reference…
Today we will learn, What is a NullPointerException, and how do I fix it? So, let's start: What is NullPointException…