Fix #440 Hash algo's sometimes skipped for old algorithm support

- Fix check that discards potentially trying all encryption methods if password didn't match
- Wrap call to encryption method properly to avoid calling methods with hasSeparateSalt() = true and a null salt

src/main/java/fr/xephi/authme/security/crypts/WBB4.java

@@ -1,7 +1,9 @@
 package fr.xephi.authme.security.crypts;
 
+import fr.xephi.authme.ConsoleLogger;
 import fr.xephi.authme.security.crypts.description.Recommendation;
 import fr.xephi.authme.security.crypts.description.Usage;
+import fr.xephi.authme.util.StringUtils;
 
 @Recommendation(Usage.DOES_NOT_WORK)
 public class WBB4 extends HexSaltedMethod {
@@ -13,7 +15,12 @@ public class WBB4 extends HexSaltedMethod {
 
     @Override
     public boolean comparePassword(String password, HashedPassword hashedPassword, String playerName) {
-        return BCRYPT.checkpw(password, hashedPassword.getHash(), 2);
+        try {
+            return BCRYPT.checkpw(password, hashedPassword.getHash(), 2);
+        } catch (IllegalArgumentException e) {
+            ConsoleLogger.showError("WBB4 compare password returned: " + StringUtils.formatException(e));
+        }
+        return false;
     }
 
     @Override