Add extra log to capture exception trace on a path where it was lost

Author: jshiell

src/main/java/org/infernus/idea/checkstyle/checker/CheckerFactory.java

@@ -199,6 +199,7 @@ private CachedChecker blockAndShowMessage(final ConfigurationLocation location,
                                               final Object... messageArgs) {
         return blockAnd(location, () -> {
             if (module != null) {
+                LOG.warn("Blocking configuration due to exception", cause);
                 Notifications.showError(module.getProject(), message(messageKey, messageArgs));
             } else {
                 throw new CheckStylePluginException(message(messageKey, messageArgs), cause);

src/main/java/org/infernus/idea/checkstyle/checker/ScanFiles.java

@@ -194,7 +194,7 @@ private List<ScanResult> checkFiles(final Module module,
                     var problems = checker.get().scan(scannableFiles, configurationManager().getCurrent().isSuppressErrors());
                     scanResults.add(new ScanResult(ConfigurationLocationResult.of(configurationLocation, PRESENT), module, problems));
                 } else {
-                    throw new CheckStylePluginException("Could not create checker for location " + configurationLocation);
+                    throw new CheckStylePluginException("Could not create checker for location " + configurationLocation + ", see logs for details.");
                 }
             }
             return scanResults;