Check if Java bytecode contains debug symbols

If you run javap -v on the class file, you will see the debug information that is present in the file.

It is worth compiling a simple test class with different -g option settings and looking at the results with javap.

^{If, you need to know exactly how javap presents the information, it is it is best for you to try it out in your Java installation. The output from the javap command may vary between different Java versions.}