Error creating bean with name 'entityManagerFactory' defined in class path resource: Invocation of init method failed
The entityManagerFactory
tantrum might be due to the following reasons:
- Entity annotations have gone rogue.
@EntityScan
decided to go on a vacation.
- Database properties turned hostile.
- The stack trace is hiding something.
Checking the connection pool party
Our Data Sorcerer might be tired, increasing both 'maxPoolSize'
and 'borrowConnectionTimeout'
will help.
Dealing with dependency drama
javax.xml.bind:jaxb-api
v 2.3.0, org.javassist:javassist
v 3.25.0-GA are a must-have in your Maven allies.
Art of entity embedding
- Ensure that our entity engraving (annotations) are in sync with the actual database structure.
- Avoid extra fluff in your entity classes that are not present in your database.
Hibernate-Spring love story
Our entityManagerFactory
bean depends heavily on Hibernate and Spring. Validate the:
- Coherency of your Hibernate EntityManager configuration.
- Spring Boot, MySQL connector, and JTA Atomikos dependencies in your
pom.xml
.
Debugging the entity factory
Corruptions and initialization riddles can add torment to our entityManagerFactory
. When things are topsy-turvy:
- Reinstall dependencies like
hibernate-core
andhibernate-entitymanager
from Maven repository.
Decoding entity road-signs
Learning from errors is key. Far from being just gibberish, detailed error messages will often conceal:
- The specific module responsible for the error.
- The kind of error incurred.
- Feelings of betrayal from your database.
Destination database
Not all who wander in your code are lost. Some might be your DB connection:
- Confirm that the DB is accessible.
- Cross-check the
spring.datasource.url
for correctness. - Invest in a good connection-testing tool or script.
Spring Boot detour
Even on the darkest code paths, a well-formed query can be your guiding star. When all else fails:
- Realign the mappings in your
@Entity
and@Table
annotations. - Synchronize your Spring Boot and Hibernate configurations.
- Dive into the depth of your Maven
pom.xml
to retrieve lost artifacts.
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