test/jdk/tools/jpackage/helpers/jdk/jpackage/test/JPackageCommand.java

*** 471,485 ****
                  .setExecutable(JavaTool.JPACKAGE)
                  .addArguments(args)
                  .getPrintableCommandLine();
      }
  
!     void verifyIsOfType(Collection<PackageType> types) {
          verifyIsOfType(types.toArray(PackageType[]::new));
      }
  
!     void verifyIsOfType(PackageType ... types) {
          if (!Arrays.asList(types).contains(packageType())) {
              throw new IllegalArgumentException("Unexpected package type");
          }
      }
  
--- 471,485 ----
                  .setExecutable(JavaTool.JPACKAGE)
                  .addArguments(args)
                  .getPrintableCommandLine();
      }
  
!     public void verifyIsOfType(Collection<PackageType> types) {
          verifyIsOfType(types.toArray(PackageType[]::new));
      }
  
!     public void verifyIsOfType(PackageType ... types) {
          if (!Arrays.asList(types).contains(packageType())) {
              throw new IllegalArgumentException("Unexpected package type");
          }
      }