[ci] Combine if statement and fix formatting

Author: hazendaz

src/main/java/org/apache/ibatis/io/VFS.java

@@ -58,11 +58,9 @@ static VFS createVFS() {
         Class<? extends VFS> impl = impls.get(i);
         try {
           vfs = impl.getDeclaredConstructor().newInstance();
-          if (!vfs.isValid()) {
-            if (log.isDebugEnabled()) {
-              log.debug("VFS implementation " + impl.getName() +
-                  " is not valid in this environment.");
-            }
+          if (!vfs.isValid() && log.isDebugEnabled()) {
+            log.debug("VFS implementation " + impl.getName()
+                + " is not valid in this environment.");
           }
         } catch (InstantiationException | IllegalAccessException | NoSuchMethodException | InvocationTargetException e) {
           log.error("Failed to instantiate " + impl, e);