[Java] Warnings clean up.

Author: mjpt777

sbe-tool/src/main/java/uk/co/real_logic/sbe/PrimitiveValue.java

@@ -192,7 +192,7 @@ public static PrimitiveValue parse(final String value, final PrimitiveType primi
                 {
                     throw new IllegalArgumentException("Constant char value malformed: " + value);
                 }
-                return new PrimitiveValue((long)value.getBytes(US_ASCII)[0], 1);
+                return new PrimitiveValue(value.getBytes(US_ASCII)[0], 1);
 
             case INT8:
                 return new PrimitiveValue(Byte.parseByte(value), 1);

sbe-tool/src/main/java/uk/co/real_logic/sbe/xml/SetType.java

@@ -78,11 +78,12 @@ public SetType(final Node node, final String givenName, final String referencedN
 
             default:
                 // might not have ran into this type yet, so look for it
-                final Node encodingTypeNode = (Node)xPath.compile(
-                    String.format("%s[@name=\'%s\']", XmlSchemaParser.TYPE_XPATH_EXPR, encodingTypeStr))
+                final String expression = TYPE_XPATH_EXPR + "[@name='" + encodingTypeStr + "']";
+                final Node encodingTypeNode = (Node)xPath
+                    .compile(expression)
                     .evaluate(node.getOwnerDocument(), XPathConstants.NODE);
 
-                if (encodingTypeNode == null)
+                if (null == encodingTypeNode)
                 {
                     encodingType = null;
                 }