```
class TestInline {
    static int sum;

    public static int caller(int a , int b) {
      return a + b;
    }

    public static void main(String[] args) {
        for (int i = 0; i < 1000; i++) {
            for (int j = 0; j < 1000; j++) {
                sum += caller(i, 0);
            }
        }
    }
}
```

Run the above program with
```
   -XX:+PrintCompilation \
   -XX:+UnlockDiagnosticVMOptions -XX:+PrintInlining \
   -XX:CompileCommand=quiet \
   -XX:CompileCommand=inline,TestInline::caller \
   -XX:CompileCommand=dontinline,TestInline::caller \
   -XX:CompileCommand=compileonly,TestInline::main \
```

Then we get
```
     28 1 % 3 TestInline::main @ 11 (43 bytes)
                              @ 23 TestInline::caller (4 bytes) disallowed by CompileCommand
     29 2 3 TestInline::main (43 bytes)
                              @ 23 TestInline::caller (4 bytes) disallowed by CompileCommand
     31 3 % 4 TestInline::main @ 11 (43 bytes)
     33 1 % 3 TestInline::main @ 11 (43 bytes) made not entrant
                              @ 23 TestInline::caller (4 bytes) force inline by CompileCommand
```

It shows that inlining of TestInline::caller is disallowed by C1 but force-inlined by C2, which are conflict inlining decisions of C1/C2.