hadoop/hadoop-tools/hadoop-azure/dev-support/findbugs-exclude.xml

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   limitations under the License.
-->
<FindBugsFilter>
     <!-- This reference equality check is an intentional light weight
          check to avoid re-validating the token when re-used. -->
     <Match>
       <Class name="org.apache.hadoop.fs.azurebfs.utils.CachedSASToken" />
       <Method name="update" />
       <Bug pattern="ES_COMPARING_PARAMETER_STRING_WITH_EQ" />
     </Match>

     <!-- This is intentional. The unsynchronized field access is safe
          and only synchronized access is used when using the sasToken
          for authorization. -->
     <Match>
       <Class name="org.apache.hadoop.fs.azurebfs.utils.CachedSASToken" />
       <Field name="sasToken" />
       <Bug pattern="IS2_INCONSISTENT_SYNC" />
     </Match>

     <!-- It is okay to skip up to end of file. No need to check return value. -->
     <Match>
       <Class name="org.apache.hadoop.fs.azure.AzureNativeFileSystemStore" />
       <Method name="retrieve" />
       <Bug pattern="SR_NOT_CHECKED" />
       <Priority value="2" />
     </Match>

     <!-- Returning fully loaded array to iterate through is a convenience
          and helps performance. -->
     <Match>
       <Class name="org.apache.hadoop.fs.azure.NativeAzureFileSystem$FolderRenamePending" />
       <Method name="getFiles" />
       <Bug pattern="EI_EXPOSE_REP" />
       <Priority value="2" />
     </Match>

     <!-- Need to start keep-alive thread for SelfRenewingLease in constructor. -->
     <Match>
       <Class name="org.apache.hadoop.fs.azure.SelfRenewingLease" />
       <Bug pattern="SC_START_IN_CTOR" />
       <Priority value="2" />
     </Match>
     
     <!-- Using a key set iterator is fine because this is not a performance-critical
          method. -->
     <Match>
       <Class name="org.apache.hadoop.fs.azure.PageBlobOutputStream" />
       <Method name="logAllStackTraces" />
       <Bug pattern="WMI_WRONG_MAP_ITERATOR" />
       <Priority value="2" />
     </Match>

    <!-- FileMetadata is used internally for storing metadata but also
    subclasses FileStatus to reduce allocations when listing a large number
    of files.  When it is returned to an external caller as a FileStatus, the
    extra metadata is no longer useful and we want the equals and hashCode
    methods of FileStatus to be used. -->
    <Match>
        <Class name="org.apache.hadoop.fs.azure.FileMetadata" />
        <Bug pattern="EQ_DOESNT_OVERRIDE_EQUALS" />
    </Match>
 </FindBugsFilter>