[yamahareceiver] Fix read stall blocking OH thing handler thread pool (…

…openhab#17769)

Since no read timeout was set, reads blocked indefinitely, which in case
of unreachable receiver led to blocking the OH thing handler thread
pool, since multiple requests are launched into the thread pool
simultaneously.

Fixes openhab#17768

Signed-off-by: Danny Baumann <[email protected]>

bundles/org.openhab.binding.yamahareceiver/src/main/java/org/openhab/binding/yamahareceiver/internal/protocol/xml/XMLConnection.java

@@ -47,6 +47,7 @@ public class XMLConnection extends AbstractConnection {
     private static final String HEADER_CHARSET_PART = "charset=";
 
     private static final int CONNECTION_TIMEOUT_MS = 5000;
+    private static final int READ_TIMEOUT_MS = 3000;
 
     public XMLConnection(String host) {
         super(host);
@@ -77,6 +78,7 @@ private <T> T postMessage(String prefix, String message, String suffix,
 
             // Set a timeout in case the device is not reachable (went offline)
             connection.setConnectTimeout(CONNECTION_TIMEOUT_MS);
+            connection.setReadTimeout(READ_TIMEOUT_MS);
 
             connection.setUseCaches(false);
             connection.setDoInput(true);