src/java.base/share/classes/sun/nio/ch/ServerSocketChannelImpl.java

@@ -145,15 +145,18 @@
         throws IOException
     {
         Objects.requireNonNull(name);
         if (!supportedOptions().contains(name))
             throw new UnsupportedOperationException("'" + name + "' not supported");
+
         synchronized (stateLock) {
             ensureOpen();
 
             if (name == StandardSocketOptions.SO_REUSEADDR && Net.useExclusiveBind()) {
                 // SO_REUSEADDR emulated when using exclusive bind
+                if (!(value instanceof Boolean))
+                    throw new IllegalArgumentException("Invalid value '" + value + "'");
                 isReuseAddress = (Boolean)value;
             } else {
                 // no options that require special handling
                 Net.setSocketOption(fd, Net.UNSPEC, name, value);
             }