The following prints the current caller class. Note that in this case, the StackWalker
needs to be created with the option RETAIN_CLASS_REFERENCE
, so that Class
instances are retained in the StackFrame
objects. Otherwise an exception would occur.
public class StackWalkerExample {
public static void main(String[] args) {
FooHelper.foo();
}
}
class FooHelper {
protected static void foo() {
BarHelper.bar();
}
}
class BarHelper {
protected static void bar() {
System.out.println(StackWalker.getInstance(Option.RETAIN_CLASS_REFERENCE).getCallerClass());
}
}
Output:
class test.FooHelper