Embedding one line via pattern matching does not work

I try to embed one line of code which reads like this:
```java
spine.enableJava().server()
```
The instruction I use is this:
```
<?embed-code file="examples/hello/build.gradle" start="*spine.enableJava()*" end="*.server()"?>
```
I expect that the only line will be embedded. 

Instead, I get the whole file up to the end.
