fix 44396

diff --git a/src/com/ranfa/main/DelesteRandomSelector.java b/src/com/ranfa/main/DelesteRandomSelector.java
index 3401acd..ab75dc6 100644 (file)
--- a/src/com/ranfa/main/DelesteRandomSelector.java
+++ b/src/com/ranfa/main/DelesteRandomSelector.java
@@ -477,6 +477,10 @@ public class DelesteRandomSelector extends JFrame {
        btnStart = new JButton(Messages.MSGCalcStart.toString());
        btnStart.addActionListener(e -> {
                CompletableFuture.runAsync(() -> {
        btnStart = new JButton(Messages.MSGCalcStart.toString());
        btnStart.addActionListener(e -> {
                CompletableFuture.runAsync(() -> {

+                       if(selectedSongsList.isEmpty()) {
+                               logger.warn("User has not started playing yet.");
+                               return;
+                       }

                        Random random = new Random(System.currentTimeMillis());
                        toolIntegrateList = new ArrayList<>();
                        StringBuilder paneBuilder = new StringBuilder();
                        Random random = new Random(System.currentTimeMillis());
                        toolIntegrateList = new ArrayList<>();
                        StringBuilder paneBuilder = new StringBuilder();