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unable to resolve class org.springframework.test.util.MatcherAssertionErrors

Solution
Replace 'import static org.springframework.test.util.MatcherAssertionErrors.assertThat;' with 'import static org.hamcrest.MatcherAssert.assertThat;'

MatcherAssertionErrors got deprecated in newer spring versions. Similar methods is available in junit/hamcrest.

JavaScript engine not available in Java 11, upgrading from Java 8

Solution
The default JavaScript engine present in Java 8 was later removed in Java 11+. Please use external dependencies like 'GraalVM' JS engine to keep the functionality. Please note the language name for the JS engine needs to be changed from 'javascript' to 'graal.js'.

Ref: https://stackoverflow.com/a/71481633

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