Use preferred spelling for "cannot"

Author: garydgregory

src/main/java/org/apache/commons/scxml2/test/StandaloneUtils.java

@@ -76,7 +76,7 @@ public static void execute(final String uri, final Evaluator evaluator) {
             final SCXML doc = SCXMLReader.read(new URL(documentURI));
             if (doc == null) {
                 System.err.println("The SCXML document " + uri
-                        + " can not be parsed!");
+                        + " cannot be parsed!");
                 System.exit(-1);
             }
             System.out.println(SCXMLWriter.write(doc));
@@ -137,7 +137,7 @@ public static void execute(final String uri, final Evaluator evaluator) {
     /**
      * @param uri an absolute or relative URL
      * @return java.lang.String canonical URL (absolute)
-     * @throws IOException if a relative URL can not be resolved
+     * @throws IOException if a relative URL cannot be resolved
      *         to a local file
      */
     private static String getCanonicalURI(final String uri)

src/test/java/org/apache/commons/scxml2/w3c/W3CTests.java

@@ -597,7 +597,7 @@ protected boolean runTest(final Assertions.TestCase testCase, final Tests.Test t
             final SCXML doc = SCXMLReader.read(new FileReader(scxmlFile), configuration);
             if (doc == null) {
                 System.out.println("                FAIL: the SCXML file " +
-                        scxmlFile.getCanonicalPath() + " can not be parsed!");
+                        scxmlFile.getCanonicalPath() + " cannot be parsed!");
                 return false;
             }
             final SCXMLExecutor exec = new SCXMLExecutor(null, null, trc);