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Java:the hierarchy of the type is inconsistent error

Source: Internet
Author: User
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Reason One

  • In a class/interface of inheritance (extends)/implementation (implements), other jars on which this class/interface depends cannot be relied upon or referenced in this class.
  • Example: Class A Inheritance (extends) class B, import the Com.jixue.dna.ui.portal.TaskUtil class in Class B, and Class A is not dependent on the Com.jixue.dna.ui.portal.jar package, so error.

Reason Two

  • In a class/interface, the dependent jar package relies on another jar package, and the class/interface cannot rely on another jar package, so there is an error.
  • Example: Class A relies on Com.jixue.dna.ui.portal.jar, and Com.jixue.dna.ui.portal.jar relies on Com.jixue.dna.service.task.jar, and class A is not dependent on the Com.jixue.dna.service.task.jar package, so error.

Java:the hierarchy of the type is inconsistent error

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