A few more PMD rules that can be skipped
diff --git a/buildtools/src/main/resources/cxf-pmd-ruleset.xml b/buildtools/src/main/resources/cxf-pmd-ruleset.xml
index 067736b..bea0a37 100644
--- a/buildtools/src/main/resources/cxf-pmd-ruleset.xml
+++ b/buildtools/src/main/resources/cxf-pmd-ruleset.xml
@@ -107,6 +107,7 @@
         <exclude name="AvoidInstanceofChecksInCatchClause" />
         <exclude name="AvoidLiteralsInIfCondition" />
         <exclude name="BeanMembersShouldSerialize" />
+        <exclude name="CloseResource" />
         <exclude name="CompareObjectsWithEquals" />
         <exclude name="ConstructorCallsOverridableMethod" />
         <exclude name="DataflowAnomalyAnalysis" />
@@ -122,6 +123,8 @@
         <exclude name="MoreThanOneLogger" />
         <exclude name="NullAssignment" />
         <exclude name="ReturnEmptyArrayRatherThanNull" />
+        <exclude name="SimpleDateFormatNeedsLocale" />
+        <exclude name="SingleMethodSingleton" />
         <exclude name="SuspiciousEqualsMethodName" />
         <exclude name="TestClassWithoutTestCases" />
         <exclude name="UseLocaleWithCaseConversions" />