fix npe on key completion with deleted keys

Resolves #67

CHANGELOG.md

@@ -3,6 +3,10 @@
 # easy-i18n Changelog
 
 ## [Unreleased]
+### Fixed
+- NullPointerException on key completion
+
+## [1.6.0]
 ### Added
 - The search function now supports full-text-search
 - Automatically reload translation data on file system change

src/main/java/de/marhali/easyi18n/editor/KeyCompletionProvider.java

@@ -38,10 +38,6 @@ public class KeyCompletionProvider extends CompletionProvider<CompletionParamete
 
         String path = result.getPrefixMatcher().getPrefix();
 
-        if(pathPrefix == null) {
-            pathPrefix = "";
-        }
-
         if(path.startsWith(pathPrefix)) {
             path = path.substring(pathPrefix.length());
 
@@ -77,6 +73,8 @@ public class KeyCompletionProvider extends CompletionProvider<CompletionParamete
 
                 } else {
                     Translation translation = store.getData().getTranslation(key);
+
+                    if(translation != null) {
                         String content = translation.get(previewLocale);
 
                         result.addElement(LookupElementBuilder.create(pathPrefix + key)
@@ -87,4 +85,5 @@ public class KeyCompletionProvider extends CompletionProvider<CompletionParamete
                 }
             }
         }
+    }
 }