I have an SpringBoot application with integrationtests utilising an H2 inmemory database. The tests work, if I use SpringBoot in versino 2.3.4.RELEASE. They fail if I upgrade to 2.4.0 with the following error:

java.lang.IllegalStateException: Failed to load ApplicationContext
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'liquibase' defined in class path resource [org/springframework/boot/autoconfigure/liquibase/LiquibaseAutoConfiguration$LiquibaseConfiguration.class]: Invocation of init method failed; nested exception is java.lang.RuntimeException: Driver com.microsoft.sqlserver.jdbc.SQLServerDriver claims to not accept jdbcUrl, jdbc:h2:mem:integrationTestDB;DB_CLOSE_DELAY=-1;MODE=MSSQLServer;INIT=CREATE SCHEMA IF NOT EXISTS dbo\;SET SCHEMA dbo
Caused by: java.lang.RuntimeException: Driver com.microsoft.sqlserver.jdbc.SQLServerDriver claims to not accept jdbcUrl, jdbc:h2:mem:integrationTestDB;DB_CLOSE_DELAY=-1;MODE=MSSQLServer;INIT=CREATE SCHEMA IF NOT EXISTS dbo\;SET SCHEMA dbo

Here is my integration-test.properties, that is used by the tests:

spring.datasource.url=jdbc:h2:mem:integrationTestDB;\
  DB_CLOSE_DELAY=-1;\
  MODE=MSSQLServer;\
  INIT=CREATE SCHEMA IF NOT EXISTS dbo\\;SET SCHEMA dbo
spring.datasource.driver=org.h2.Driver
spring.datasource.hikari.driver-class-name=org.h2.Driver

hibernate.dialect=org.hibernate.dialect.SQLServerDialect
hibernate.hbm2ddl.auto=none

spring.datasource.username=sa
spring.datasource.password=

spring.liquibase.user=sa
spring.liquibase.password=

The version of H2 is 1.4.200. The difference between success and failure is the SpringBoot version in the parent element of the pom:

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.4.0</version>
    </parent>

The liquibase version changed from 3.8.9 to 3.10.3. I configured it to stay at 3.8.9 but that didn't help.

I read the release notes and found the part about the embedded database detection: https://github.com/spring-projects/spring-boot/wiki/Spring-Boot-2.4-Release-Notes#embedded-database-detection

But adding

spring.datasource.initialization-mode=always

to the properties didn't help either.

I remember that it took some time to find the right datasource url last time, but I can't find any new clues with google.

Can you give me a hint, what causes this problem?

Kind regards, Ulrich