Fix Java17 mockito errors

Check failure on line 30 in LiveReloadScriptInjectionMiddleManServletTestCase 

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/ Test Report
LiveReloadScriptInjectionMiddleManServletTestCase.shouldFilterLocation
Mockito cannot mock this class: interface javax.servlet.http.HttpServletRequest.

Mockito can only mock non-private & non-final classes.
If you're not sure why you're getting this error, please report to the mailing list.


Java               : 17
JVM vendor name    : Azul Systems, Inc.
JVM vendor version : 17.0.3+7-LTS
JVM name           : OpenJDK 64-Bit Server VM
JVM version        : 17.0.3+7-LTS
JVM info           : mixed mode, sharing
OS name            : Linux
OS version         : 5.13.0-1031-azure


Underlying exception : java.lang.IllegalStateException: Error invoking java.lang.invoke.MethodHandles$Lookup#defineClass