Modified 3 years, 8 months ago. Viewed 67 times. 1. When trying to update an Entity in Hibernate Im getting this ERROR: SEVERE: Could not synchronize database state with session. So the request is not being saved to database. My entity has many-to-one relationship. What should I do?
Also open and close many times was just a test. I usually open at the start and close at the end. Edit 3: Here is a part of the code where i insert : private List transformOldModelToNewModel (List projectsFromXML) { List projectsNewModel = new ArrayList<> (); for (ProjectType projectType
nested exception is org.hibernate.exception.GenericJDBCException: Unable to acquire JDBC Connection Index.jsp from where i enter values for my pojo class whose values has to be stored in the database.
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Another suggestion is to check that you use a valid type for the auto-generated field. Remember that it doesn't work with String, but it works with Long: @Id @GeneratedValue (strategy=GenerationType.AUTO) public Long id; @Constraints.Required public String contents; The above syntax worked for generating tables in MySQL using Hibernate as a JPA
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org.hibernate.HibernateException: Access to DialectResolutionInfo cannot be null when 'hibernate.dialect' not set 2 HibernateException: Access to DialectResolutionInfo cannot be null when 'hibernate.dialect' not set but works on another machine with no issue
I’ve a spring app with hibernate which is connected to MariaDb. When I try to perform some delete operation using NativeQuery on a table I’m getting java.sql.SQLException: Deadlock found when trying to get lock; try restarting transaction this exception. I don’t get this exception everytime, looks like it is happening only when we have lot of requests that performs the delete operation
I am using JPA2.2 with Hibernate and a MySql database. I have a simple Entity (Account) and when I try to send a simple query, I get a hibernate Exception and crashes because it goes out of memory. Any help in tracking this issue will be great. Thanks. Entity: Account.java
Get early access and see previews of new features. nested exception is org.hibernate.exception.SQLGrammarException: could not prepare statement Caused by: java
The Hibernate session is closed before your resource method’s return value (e.g., the Person from the database), which means your resource method (or DAO) is responsible for initializing all lazily-loaded collections, etc., before returning. Otherwise, you’ll get a LazyInitializationException thrown in your template (or null values produced
Get early access and see previews of new features. nested exception is org.hibernate.exception.JDBCConnectionException: Unable to acquire JDBC Connection" "Nov 16
