Fix #5939 by creating a mutable list in OpenDatabaseAction

Author: Ka0o0

CHANGELOG.md

@@ -35,6 +35,7 @@ We refer to [GitHub issues](https://github.com/JabRef/jabref/issues) by using `#
 - We fixed an issue where entries containing Unicode charaters were not parsed correctly [#5899](https://github.com/JabRef/jabref/issues/5899)
 - We fixed an issue where an entry containing an external filename with curly braces could not be saved. Curly braces are now longer allowed in filenames. [#5899](https://github.com/JabRef/jabref/issues/5899)
 - We fixed an issue where changing the type of an entry did not update the main table [#5906](https://github.com/JabRef/jabref/issues/5906)
+- We fixed an issue where opening a library from the recent libraries menu was not possible [#5939](https://github.com/JabRef/jabref/issues/5939)
 
 
 ### Removed

src/main/java/org/jabref/gui/importer/actions/OpenDatabaseAction.java

@@ -3,6 +3,7 @@
 import java.nio.file.Files;
 import java.nio.file.Path;
 import java.sql.SQLException;
+import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Collections;
 import java.util.Iterator;
@@ -102,7 +103,7 @@ private Path getInitialDirectory() {
      * @param file the file, may be null or not existing
      */
     public void openFile(Path file, boolean raisePanel) {
-        openFiles(Collections.singletonList(file), raisePanel);
+        openFiles(new ArrayList<>(Collections.singletonList(file)), raisePanel);
     }
 
     /**