src/jdk.jpackage/macosx/classes/jdk/jpackage/internal/MacDmgBundler.java

*** 132,142 ****
              if (licFileStr == null) {
                  return;
              }
  
              File licFile = new File(licFileStr);
!             byte[] licenseContentOriginal = Files.readAllBytes(licFile.toPath());
              String licenseInBase64 =
                      Base64.getEncoder().encodeToString(licenseContentOriginal);
  
              Map<String, String> data = new HashMap<>();
              data.put("APPLICATION_LICENSE_TEXT", licenseInBase64);
--- 132,143 ----
              if (licFileStr == null) {
                  return;
              }
  
              File licFile = new File(licFileStr);
!             byte[] licenseContentOriginal =
!                     Files.readAllBytes(licFile.toPath());
              String licenseInBase64 =
                      Base64.getEncoder().encodeToString(licenseContentOriginal);
  
              Map<String, String> data = new HashMap<>();
              data.put("APPLICATION_LICENSE_TEXT", licenseInBase64);