This might be the x-th question with this title, but the other ones and their answers did not help me. Please pay attention to the tags.
If I set a breakpoint to a line of code in my current project and the debugger hits it, it will display an error Source not found. and offer me to Edit Source Lookup Path....
E.g. when I set the breakpoint to a line in my StartBean.java the stack frame will be called
StartBean$Proxy$_$$_WeldClientProxy.processGeocodingData(ActionEvent) line: not available
and the title of the windows saying Source not found is also not called StartBean.java as it should but also starts with StartBean$Proxy....
Seems like that it indeed not the file I want to look into. I already modified the Source Lookup Path: Deleted some "Default" and added Java-Project -> MyProject but it did not help.
I also activated all "default" step filters.
The "JRebel Eclipse Debugger Plug-In" causes this behaviour when a breakpoint is set to a line declaring a method.
Solution: Set your breakpoints to a line inside the method.