Details
Description
The compiled version of HibernateTransactionManager seems to contain a reference to SharedSessionContractImplementor (perhaps from the lambda call?).
When running with Hibernate 5.1.x in the classpath, resolution of SharedSessionContractImplementor will fail, triggering a NoClassDefFoundError.
Please take a look at the output of "javap -v" for the compiled version of HibernateTransactionManager in the latest release jar.