tests update

Author: host6

src/main/java/org/scm4j/commons/URLContentLoader.java

@@ -30,7 +30,10 @@ public List<String> getContentsFromUrls(String... separatedUrls) throws IOExcept
 			}
 			String[] urls = separatedUrl.split(URL_SEPARATOR);
 			for (String url : urls) {
-				res.add(getContentFromUrl(url));
+				String content = getContentFromUrl(url);
+				if (content != null) {
+					res.add(content);
+				}
 			}
 		}
 		return res;
@@ -50,6 +53,9 @@ public String getContentFromUrl(URL url) throws IOException {
 	}
 
 	public String getContentFromUrl(String url) throws IOException {
+		if (url.isEmpty()) {
+			return null;
+		}
 		return getContentFromUrl(new URL(getWithDefaultProtocol(url)));
 	}
 }

src/test/java/org/scm4j/commons/URLContentLoaderTest.java

@@ -26,11 +26,14 @@ public void testGetContentFromUrls() throws Exception {
 		String content1 = FileUtils.readFileToString(new File(url1.toURI()), StandardCharsets.UTF_8);
 		String content2 = FileUtils.readFileToString(new File(url2.toURI()), StandardCharsets.UTF_8);
 		String content3 = FileUtils.readFileToString(new File(url3.toURI()), StandardCharsets.UTF_8);
-		List<String> contents = loader.getContentsFromUrls(url1.toString(), url2.toString() +";" + url3.toString());
+		List<String> contents = loader.getContentsFromUrls(url1.toString(), url2.toString() + URLContentLoader.URL_SEPARATOR + url3.toString());
 		assertEquals(String.join("", content1, content2, content3), String.join("", contents));
 
 		contents = loader.getContentsFromUrls(Arrays.asList(url1, url2));
 		assertEquals(String.join("", content1, content2), String.join("",  contents));
+		
+		contents = loader.getContentsFromUrls("", URLContentLoader.URL_SEPARATOR + url1.toString());
+		assertEquals(content1, String.join("",  contents));
 	}
 
 	@Test