Disable double check locking because it fails in Eclipse now

h2/src/installer/checkstyle.xml

@@ -49,6 +49,9 @@
         <module name="NeedBraces"/>
         <module name="RightCurly"/>
         <module name="DoubleCheckedLocking"/>
+            <property name="severity" value="ignore"/>
+            <metadata name="net.sf.eclipsecs.core.lastEnabledSeverity" value="inherit"/>
+        </module>
         <module name="EmptyStatement"/>
         <module name="EqualsHashCode"/>
         <module name="IllegalInstantiation"/>