Assert.isTrue() has thrown an IllegalArgumentException

at org.springframework.util.Assert.isTrue

Typical Exception Messages

  1. @ConditionalOnMissingBean annotations must specify at least one bean (type, name or annotation)
  2. Folder must not be a file
  3. [Assertion failed] - this expression must be true
  4. Async support must be enabled on a servlet and for all filters involved in async request processing. This is done in Java code using the Servlet API or by adding "<async-supported>true</async-supported>" to servlet and filter declarations in web.xml. Also you must use a Servlet 3.0+ container
  5. Only the target location may be specified
  6. Target bean is not of type of the persistent entity!
  7. URL must start with 'jdbc'
  8. Either use @Param on all parameters except Pageable and Sort typed once, or none at all!
  9. 'spring/index?error' is not a valid redirect URL
  10. Cannot send message after connection closed.

Specific cases


krasniqi.vesa, 9 months ago

If you are trying to get a specific page of results, try first defining that page.

Check the source of this solution for more info

We have seen this error pattern in the following webpages (166)

  1. cmadervia GitHub9 hours ago
    ${cas.logout.url} isn't a valid redirect URL
  2. WebSocketHandler not found for SockJS session id=8cf_1l_6
  3. Amarvia Stack Overflow2 days ago
    loginFormUrl must be specified and must be a valid redirect URL
  4. Mark Fishervia Spring JIRA4 days ago
    When defining @Publisher on a void-returning method, an explicit payload expression that does not rely upon a #return value is required.
  5. Unknown authorvia blogspot.com4 days ago
    [Assertion failed] - this expression must be true
  6. Christoph Stroblvia Spring JIRA5 days ago
    @ConditionalOnMissingBean annotations must specify at least one bean (type, name or annotation)
  7. BXTvia Stack Overflow1 week ago
    No converter found for return value of type: class java.util.LinkedHashMap
  8. Unknown authorvia Stack Overflow1 week ago
  9. pedroacvia GitHub2 weeks ago
    Username to-be-overwritten-by-vault-value