Merge branch 'main' into fileformat_api_for_ui

Author: lolodomo

bundles/org.openhab.core.model.thing/src/org/openhab/core/model/thing/internal/fileconverter/DslThingFileConverter.java

@@ -16,6 +16,7 @@
 import java.io.ByteArrayOutputStream;
 import java.io.IOException;
 import java.io.OutputStream;
+import java.math.BigDecimal;
 import java.util.HashSet;
 import java.util.List;
 import java.util.Set;
@@ -192,6 +193,12 @@ private ModelChannel buildModelChannel(Channel channel, boolean hideDefaultParam
             } else {
                 property = null;
             }
+        } else if (value instanceof Double doubleValue) {
+            // DSL thing syntax does not like a configuration parameter value provided as Double type.
+            // By security, we apply a conversion to a BigDecimal in case this would happen.
+            logger.debug("Configuration parameter {} with value {} is provided unexpectedly as Double type", key,
+                    value);
+            property.getValue().add(BigDecimal.valueOf(doubleValue));
         } else {
             property.getValue().add(value);
         }