Assert.notNull() has thrown an IllegalArgumentException

java.lang.IllegalArgumentException
Javadoc
Thrown to indicate that a method has been passed an illegal or inappropriate argument. @author unascribed @since JDK1.0
at org.springframework.util.Assert.notNull
(source)

Typical Exception Messages

  1. A ServletContext is required to configure default servlet handling
  2. [Assertion failed] - this argument is required; it must not be null
  3. Cannot load an ApplicationContext with a NULL 'contextLoader'. Consider annotating your test class with @ContextConfiguration or @ContextHierarchy.
  4. Class must not be null
  5. WebApplicationContext is required
  6. @EnableAsync annotation metadata was not injected
  7. PersistentEntity must not be null!
  8. ResourceLoader must not be null
  9. Target object must not be null
  10. Resource must not be null

Specific cases

External results for this pattern (563)

  1. Klausvia Stack Overflow22 hours ago
    [Assertion failed] - this argument is required; it must not be null
    Show stack trace
  2. Jai Prakvia Stack Overflow23 hours ago
    Cannot load an ApplicationContext with a NULL 'contextLoader'. Consider annotating your test class with @ContextConfiguration or @ContextHierarchy.
    Show stack trace
  3. geoHeilvia Stack Overflow23 hours ago
    WebApplicationContext is required
    Show stack trace
  4. davisoskivia Stack Overflow23 hours ago
    [Assertion failed] - this argument is required; it must not be null
    Show stack trace
  5. Unknown authorvia markmail.org1 day ago
    [Assertion failed] - this argument is required; it must not be null
    Show stack trace
  6. Unknown authorvia cnblogs.com1 day ago
  7. Unknown authorvia stackoverflow.com1 day ago
    Expected MultipartHttpServletRequest: is a MultipartResolver configured?
    Show stack trace
  8. Unknown authorvia spring.io1 day ago
    Cannot resolve ServletContextResource without ServletContext
    Show stack trace
  9. Unknown authorvia nabble.com1 day ago
    Property 'sqlSessionFactory' or 'sqlSessionTemplate' are required
    Show stack trace
  10. Unknown authorvia nabble.com1 day ago