Method org.postgresql.jdbc.PgConnection.createClob() is not yet implemented

Question

How can I solve this error:

java.lang.reflect.InvocationTargetException: null
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_1         


        

Answer 1

This is an issue of Hibernate, as a workaround you can use the following flag. Then set up the following config in your properties:

spring.jpa.properties.hibernate.jdbc.lob.non_contextual_creation=true

For Spring boot 2.x.x this flag simply disable contextual LOB creation, but if you really want to know the properly answer check UPDATE V1.

UPDATED V1

This was a Hibernate issue. If you use Spring Boot latest version from 2.0.x until 2.1.x includes Hibernate 5.3.10.final you can take a look here but this issue was fixed on Hibernate version 5.4.0.CR1 then you need to add that dependency or if it is possible the latest version:

For Gradle:

compile('org.hibernate:hibernate-core:5.4.2.Final')

For Maven:

<dependency>
    <groupId>org.hibernate</groupId>
    <artifactId>hibernate-core</artifactId>
    <version>5.4.2.Final</version>
</dependency>

UPDATED V2 "SPRING BOOT 2.2.0.M(1-4)"

In addition Spring boot v2.2.0.Mx includes now Hibernate v5.4.x then this issue was fixed for these versions.

Answer 2

spring:      
  jpa:
    properties:
      hibernate:
        temp:
          use_jdbc_metadata_defaults: false
        jdbc:
          lob:
            non_contextual_creation: true

use_jdbc_metadata_defaults: false or non_contextual_creation: true two items work fine