Breakpoints in JRE System Library in Eclipse

Question

I tried to make breakpoint in the class from JRE System Library, but when I started debug I recieved message: \"Unable to install breakpoint at ... due to missing line numbe

Answer 1

You just have to enable some compiler options. Right click your project and select Properties. Go to Java Compiler and enable the checkboxes Add line number to generated class files (used by the debugger) and the other ones.