Two bits of Java lint

Not strictly related to the fallthrough business, but of the
general nature of lint, and hardly worth a pull request of its own.

Author: jcflack

pljava-examples/src/main/java/org/postgresql/pljava/example/annotation/PassXML.java

@@ -1243,7 +1243,7 @@ private static Source sxToSource(SQLXML sx, int how, ResultSet adjust)
 		}
 
 		if ( s instanceof Adjusting.XML.Source )
-			return applyAdjustments(adjust, (Adjusting.XML.Source)s).get();
+			return applyAdjustments(adjust, (Adjusting.XML.Source<?>)s).get();
 		return s;
 	}
 
@@ -1275,7 +1275,7 @@ private static Result sxToResult(SQLXML sx, int how, ResultSet adjust)
 		}
 
 		if ( r instanceof Adjusting.XML.Result )
-			return applyAdjustments(adjust, (Adjusting.XML.Result)r).get();
+			return applyAdjustments(adjust, (Adjusting.XML.Result<?>)r).get();
 		return r;
 	}