Port https://github.com/Activiti/Activiti/pull/757 to v6

modules/activiti-ui/activiti-app/src/main/webapp/editor/editor-app/css/style.css

@@ -166,6 +166,12 @@
     font-size: 17px;
 }
 
+.ui-draggable.stencil-item.stencil-item-dragged {
+    display: block;
+    text-overflow: ellipsis;
+    white-space: nowrap;
+}
+
 
 /* Modeling Canvas
 -------------------------------- */
@@ -529,4 +535,4 @@ li.x-menu-list-item.x-menu-item-active a {
 
 .step-types .fa {
     margin-right: 6px;
-}
\ No newline at end of file
+}

modules/activiti-ui/content-storage-api/src/main/java/com/activiti/content/storage/exception/ContentStorageException.java

@@ -29,7 +29,7 @@ public class ContentStorageException extends RuntimeException {
     }
 
     public ContentStorageException(String message, Throwable cause, boolean enableSuppression, boolean writableStackTrace) {
-        super(message, cause, enableSuppression, writableStackTrace);
+        super(message, cause);
     }
 
     public ContentStorageException(String message, Throwable cause) {

modules/activiti-ui/content-storage-fs/src/main/java/com/activiti/content/storage/fs/FileSystemContentStorage.java

@@ -152,9 +152,9 @@ public class FileSystemContentStorage implements ContentStorage {
     public void deleteContentObject(String id) {
         try {
             File contentFile = getFileForId(id, true);
-            Files.delete(contentFile.toPath());
-        } catch(IOException ioe) {
-            throw new ContentStorageException("Error while deleting content", ioe);
+            contentFile.delete();
+        } catch(Exception e) {
+            throw new ContentStorageException("Error while deleting content", e);
         }
     }