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<Maven><Dependency><Conflict>

maven conflict solution:

  1. scenerio: Runtime Error:
    ```
    java.lang.SecurityException: class "javax.servlet.FilterRegistration"‘s signer information does not match signer information of other classes in the same package
    ```
  2. google, and know this is a confliction of Java.servlet
  3. Solution:
    1. Using idea, view -> Tool view —> maven projects
    2. Select your module, and show dependencies
    3. Ctrl-f on your dependency graph, and search your conflict lib, and exclude it.
  4. fixed.

<Maven><Dependency><Conflict>