src/jdk.jpackage/share/classes/jdk/jpackage/internal/AbstractAppImageBuilder.java

*** 62,72 ****
  
      public InputStream getResourceAsStream(String name) {
          return ResourceLocator.class.getResourceAsStream(name);
      }
  
!     public abstract void prepareApplicationFiles() throws IOException;
      public abstract void prepareJreFiles() throws IOException;
      public abstract Path getAppDir();
      public abstract Path getAppModsDir();
  
      public Path getRoot() {
--- 62,73 ----
  
      public InputStream getResourceAsStream(String name) {
          return ResourceLocator.class.getResourceAsStream(name);
      }
  
!     public abstract void prepareApplicationFiles(
!             Map<String, ? super Object> params) throws IOException;
      public abstract void prepareJreFiles() throws IOException;
      public abstract Path getAppDir();
      public abstract Path getAppModsDir();
  
      public Path getRoot() {