Merge pull request #324 from foodtiny/development

Update patch for String::trim()

Author: Food Tiny

library/Java/Lang/String/String.cpp

@@ -433,6 +433,7 @@ String String::toUpperCase() {
 String String::trim() {
     size_t first = this->original.find_first_not_of(' ');
     if (std::string::npos == first) {
+	    this->original = "";
         return *this;
     }
     size_t last = this->original.find_last_not_of(' ');

library/Java/Lang/String/StringTest.cpp

@@ -895,6 +895,11 @@ TEST (JavaLangString, Trim) {
 		assertEquals("THIS IS A CAT", trimUpperCase.trim().toUpperCase());
 	}
 
+    {
+        String allSpaceString = "  ";
+        assertEquals("", allSpaceString.trim());
+    }
+
 	{
 		String emptyString = "";
 		assertEquals("", emptyString.trim());