[Bug]: Illegal Java code is transformed

[Clipi-12]

Describe the bug

When entering illegal Java code, the result is usually transformed to a different (but still illegal) code. However, in some cases it get transformed / deleted.

Source code you are trying to analyze/transform

0;
0++;
int a = 0++;

MCVE

package my.spoon.code;

import spoon.Launcher;
import spoon.support.compiler.VirtualFile;

public class Main {
  public static void main(String[] args) {
      Launcher launcher = new Launcher();
      launcher.addInputResource(new VirtualFile(
        """
          package the.pkg.name;

          class ClassName {
            void methodName() {
              0;
              0++;
              int a = 0++;
            }
          }
        """
      ));
      System.out.println(launcher.buildModel().getAllTypes());
  }
}

Actual output

0 = the.pkg.name.$missing$; // <- `0;`
                            // <- `0++;`
int a = 0;                  // <- `int a = 0++;`

Expected output

// The same output. Illegal code shouldn't get transformed
0;
0++;
int a = 0++;

Spoon Version

11.2.0

JVM Version

17

What operating system are you using?

Windows 10