excludeFindBugsFilter.xml

<?xml version="1.0" encoding="UTF-8"?>

<FindBugsFilter>
    <!-- this work work on JDK11  https://github.com/spotbugs/spotbugs-maven-plugin/issues/92 -->
    <Bug pattern="RCN_REDUNDANT_NULLCHECK_WOULD_HAVE_BEEN_A_NPE"/>

    <!-- this problem is to be addressed in ZOOKEEPER-3227 -->
    <Bug pattern="DM_DEFAULT_ENCODING"/>

    <!-- newly detected by SpotBugs 4.9.3; pre-existing code, not regressions -->
    <Bug pattern="EI_EXPOSE_REP"/>
    <Bug pattern="EI_EXPOSE_REP2"/>
    <Bug pattern="CT_CONSTRUCTOR_THROW"/>
    <Bug pattern="AT_STALE_THREAD_WRITE_OF_PRIMITIVE"/>
    <Bug pattern="AT_NONATOMIC_64BIT_PRIMITIVE"/>
    <Bug pattern="AT_NONATOMIC_OPERATIONS_ON_SHARED_VARIABLE"/>
    <Bug pattern="PA_PUBLIC_PRIMITIVE_ATTRIBUTE"/>
    <Bug pattern="DCN_NULLPOINTER_EXCEPTION"/>
    <Bug pattern="US_USELESS_SUPPRESSION_ON_METHOD"/>
    <Bug pattern="US_USELESS_SUPPRESSION_ON_CLASS"/>
    <Bug pattern="US_USELESS_SUPPRESSION_ON_FIELD"/>
    <Bug pattern="DMI_RANDOM_USED_ONLY_ONCE"/>
    <Bug pattern="SS_SHOULD_BE_STATIC"/>
    <Bug pattern="NP_UNWRITTEN_FIELD"/>
    <Bug pattern="SING_SINGLETON_HAS_NONPRIVATE_CONSTRUCTOR"/>
    <Bug pattern="MS_EXPOSE_REP"/>

</FindBugsFilter>