breakpoint into java code


I have seen that Knime includes the views Debug,Expression and Breakpoints of Eclipse. I need to debug a java snippet but i'm not able to set a breakpoint. Into Eclipse i can set a breakpoint simply with a click on the column located at the left of the code. Knime has this column on the right but not seem it is able to store a breakpoint.  

How can i set a breakpoint into a java Snippet?


Using breakpoints in the Java Snippet node is not possible. Also, KNIME is not run in debug mode so it does not stop at breakpoints.