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    Expert tip

    If you're unit testing, you should instantiate only the service and mock the dependencies. If you're testing integration, you should add all the mocking to the configurations file.

Solutions on the web

via Spring JIRA by Christoph Strebin, 1 year ago
via Stack Overflow by Nachiketa Savant
, 2 years ago
via Stack Overflow by Alex
, 2 years ago
via Stack Overflow by Eugen Halca
, 2 years ago
java.lang.IllegalArgumentException: ResourceLoader must not be null	at org.springframework.util.Assert.notNull(	at