Minor fixes

Author: cowtowncoder

src/main/java/tools/jackson/dataformat/xml/ser/PrologPI.java

@@ -7,7 +7,7 @@
 import tools.jackson.dataformat.xml.util.ArgUtil;
 
 /**
- * Value container to represent XML Processing Intruction (PI)
+ * Value container to represent XML Processing Instruction (PI)
  * within Prolog  part of the Document (before XML Root element,
  * after XML  declaration if one written),
  * to be written using {@link XmlGeneratorInitializer}.

src/main/java/tools/jackson/dataformat/xml/ser/XmlGeneratorInitializer.java

@@ -18,7 +18,9 @@
  *<ul>
  * <li>Document Type Declarations (DTD); that is "&lt;!DOCTYPE>" directive
  *  </li>
- * <li>XML Comments (in Document prolog, before the root element)
+ * <li>Comments (in Document prolog, before the root element)
+ *  </li>
+ * <li>Processing Instructions (PIs; in Document prolog, before the root element)
  *  </li>
  * </ul>
  *<p>
@@ -57,7 +59,7 @@ public XmlGeneratorInitializer linefeedsBetweenPrologDirectives(boolean addLFs)
 
     /**
      * Method for adding XML comment; to be written at position added
-     * with respective to other directives
+     * relative to other directives
      * (but always after XML Declaration which must come before any other output;
      * and before Document Root element)
      *
@@ -89,7 +91,7 @@ public XmlGeneratorInitializer addDTD(String rootName,
 
     /**
      * Method for adding Document Type Declaration (DTD) directive; to
-     * be written at position added with respective to other directives
+     * be written at position added relative to other directives
      * (but always after XML Declaration which must come before any other output;
      * and before Document Root element)
      *
@@ -107,7 +109,7 @@ public XmlGeneratorInitializer addDTD(DTD dtd) {
 
     /**
      * Method for adding XML Processing Instruction (PI); to be written at
-     * position added with respective to other directives
+     * position added relative to other directives
      * (but always after XML Declaration which must come before any other output;
      * and before Document Root element)
      *

src/test/java/tools/jackson/dataformat/xml/ser/XmlGeneratorInitializerTest.java

@@ -236,7 +236,7 @@ public void testSimplePIs() throws Exception
 
         w = MAPPER.writer().with(
                 new XmlGeneratorInitializer()
-                        .addPI("target", ""));
+                        .addPI("target", null));
         assertEquals(EXP_WITH_NO_DATA,
                 w.writeValueAsString(new StringBean("test")));
     }