Merge branch 'f-linked-file-with-space' into 'dev'

BUG: Fix for https://gitlab.com/caosdb/caosdb-server/-/issues/148

See merge request !64

CHANGELOG.md

@@ -17,7 +17,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Fixed
 
-* [caosdb-server#145](https://gitlab.com/caosdb/caosdb-server/-/issues/145) Searching for large numbers results in wrong results if integer values are
+* [caosdb-server#148](https://gitlab.com/caosdb/caosdb-server/-/issues/148)
+  Cannot delete file entities containing unescaped space characters
+* [caosdb-server#145](https://gitlab.com/caosdb/caosdb-server/-/issues/145)
+  Searching for large numbers results in wrong results if integer values are
   used.
 
 ### Security

src/main/java/org/caosdb/server/utils/FileUtils.java

@@ -525,7 +525,7 @@ public class FileUtils {
   }
 
   private static void callPosixUnlink(File file) throws IOException, InterruptedException {
-    final Process cmd = Runtime.getRuntime().exec("unlink " + file.getAbsolutePath());
+    final Process cmd = Runtime.getRuntime().exec(new String[] {"unlink", file.getAbsolutePath()});
     if (cmd.waitFor() != 0) {
       throw new CaosDBException("could not unlink " + file.getAbsolutePath());
     }