Exeption on zpopmin (#3199)

src/main/java/io/lettuce/core/output/ReplayOutput.java

@@ -33,6 +33,11 @@ public void set(long integer) {
         output.add(new Integer(integer));
     }
 
+    @Override
+    public void set(double number) {
+        output.add(new Double(number));
+    }
+
     @Override
     public void setError(ByteBuffer error) {
         error.mark();
@@ -130,6 +135,21 @@ protected void replay(CommandOutput<?, ?, ?> target) {
 
     }
 
+    static class Double extends Signal {
+
+        final double message;
+
+        Double(double message) {
+            this.message = message;
+        }
+
+        @Override
+        protected void replay(CommandOutput<?, ?, ?> target) {
+            target.set(message);
+        }
+
+    }
+
     public static class ErrorBytes extends BulkStringSupport {
 
         ErrorBytes(ByteBuffer message) {

src/test/java/io/lettuce/core/pubsub/PubSubCommandIntegrationTests.java

@@ -28,6 +28,7 @@
 import java.util.List;
 import java.util.Map;
 import java.util.concurrent.BlockingQueue;
+import java.util.concurrent.ExecutionException;
 import java.util.concurrent.TimeUnit;
 import java.util.concurrent.atomic.AtomicReference;
 import java.util.regex.Matcher;
@@ -543,6 +544,15 @@ void resubscribeShardChannelsOnReconnect() throws Exception {
         assertThat(messages.take()).isEqualTo(shardMessage);
     }
 
+    @Test
+    void interleaveCommands() throws ExecutionException, InterruptedException {
+
+        // relay Double and Long
+        assertThat(pubsub.zadd("myzset", 1.0, "one").get()).isEqualTo(1L);
+        assertThat(pubsub.zadd("myzset", 2.0, "two").get()).isEqualTo(1L);
+        assertThat(pubsub.zpopmin("myzset", 1).get().get(0).getValue()).isEqualTo("one");
+    }
+
     @Test
     void adapter() throws Exception {
         final BlockingQueue<Long> localCounts = LettuceFactories.newBlockingQueue();