javap -c does not give me bytecode of methods

Question

I have a java file looking like this:

package answers;

class finalRed{
    private long l;
    public synchronized void increment(){
        l++;
    }
    public void decrement(){
        synchronized(this){
            l--;
        };
    }
}

And I need to view the bytecode of each of the methods, and I know that I should use the javap command. I need a output like this:

public synchronized void increment();
    Code:
       0: aload_0
       1: dup
       2: getfield      #2                  // Field l:J
       5: lconst_1
       6: ladd
       7: putfield      #2                  // Field l:J
      10: return

  public void decrement();
    Code:
       0: aload_0
       1: dup
       2: astore_1
       3: monitorenter
       4: aload_0
       5: dup
       6: getfield      #2                  
       9: lconst_1
      10: lsub
      11: putfield      #2                  
      14: aload_1
      15: monitorexit
      16: goto          24
      19: astore_2
      20: aload_1
      21: monitorexit
      22: aload_2
      23: athrow
      24: return

However, running javap -c C:\Users\Ask\Git\ITUProj\PCPP-private-Garse\week01\code\answers\finalRed.class (which I can read should work), renders me this output:

Compiled from "finalRed.java"
public class answers.finalRed {
  public answers.finalRed();
    Code:
       0: aload_0
       1: invokespecial #1                  // Method java/lang/Object."<init>":()V
       4: return
}

Which doesn't actually show me any code from the two methods. Running javap with -v or -verbose doesn't help either. How should I run the command to get the actual bytecode of the two methods in the class?

My java version is 12.01