0 Replies Latest reply on Apr 21, 2012 7:13 AM by a b

    Problem with GluonJ and javassist.gluonj.util.Loader

    a b Newbie

      I have a problem with part of GluonJ library: javassist.gluonj.util.Loader

      I have this code:

       

          Loader loader = new Loader(Class.class.getClassLoader(), new String[0]);

          Class<?> sanselan1 = loader.loadClass("org.apache.sanselan.Sanselan");

       

          // Read image.

          Method getBI = sanselan1.getMethod("getBufferedImage", new Class[]{ File.class } );

          BufferedImage image = (BufferedImage) getBI.invoke(null, new Object[]{ imageIn });

       

      And this code work correctly!


      But this code don't works:

       

          Method setBI = sanselan1.getMethod(

                  "writeImage",

                  new Class[]{ BufferedImage.class, File.class, ImageFormat.class, Map.class }

              );

          setBI.invoke(null, new Object[]{ image, imageOut, ImageFormat.IMAGE_FORMAT_PNG, null });

       

      I get an error:

       

      java.lang.NoSuchMethodException: org.apache.sanselan.Sanselan.writeImage(java.awt.image.BufferedImage, java.io.File, org.apache.sanselan.ImageFormat, java.util.Map)

       

      But if I using standart class loader:

       

          Class<?> sanselan2 = Class.forName("org.apache.sanselan.Sanselan");

          //...

          Method setBI = sanselan2.getMethod(

                  "writeImage",

                  new Class[]{ BufferedImage.class, File.class, ImageFormat.class, Map.class }

              );

          setBI.invoke(null, new Object[]{ image, imageOut, ImageFormat.IMAGE_FORMAT_PNG, null });

       

      Everithing works fine! It meanse, that org.apache.sanselan.Sanselan have method writeImage and I correctly called it.

       

      But if I using javassist.gluonj.util.Loader I have an exception: NoSuchMethodException.

       

      What is a problem?