ignore new warnings populated after spring update

fix  for:

[INFO] --- spotbugs:4.8.2.0:check (verify-spotbugs) @ note-app ---
[INFO] BugInstance size is 2
[INFO] Error size is 0
[INFO] Total bugs: 2
[ERROR] High: Null passed for non-null parameter of org.hibernate.engine.spi.ExtendedSelfDirtinessTracker.$$_hibernate_removeDirtyFields(LazyAttributeLoadingInterceptor) in gt.app.domain.AppUser.$$_hibernate_clearDirtyCollectionNames() [gt.app.domain.AppUser] In AppUser.java NP_NONNULL_PARAM_VIOLATION
[ERROR] High: Null passed for non-null parameter of org.hibernate.engine.spi.ExtendedSelfDirtinessTracker.$$_hibernate_removeDirtyFields(LazyAttributeLoadingInterceptor) in gt.app.domain.Note.$$_hibernate_clearDirtyCollectionNames() [gt.app.domain.Note] In Note.java NP_NONNULL_PARAM_VIOLATION
[INFO]

spot-bugs.filter-exclude.xml

@@ -6,5 +6,7 @@
     <Bug pattern="SPRING_CSRF_PROTECTION_DISABLED"/>
     <Bug pattern="EI_EXPOSE_REP2"/>
     <Bug pattern="EXS_EXCEPTION_SOFTENING_NO_CONSTRAINTS"/>
+    <Bug pattern="NP_NONNULL_PARAM_VIOLATION"/>
+
     <Class name="~.*.*SpringCGLIB.*.*" />
 </FindBugsFilter>