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  1. JDK
  2. JDK-8057795

No mime type for .png files

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        FULL PRODUCT VERSION :
        java version "1.8.0_20"
        Java(TM) SE Runtime Environment (build 1.8.0_20-b26)
        Java HotSpot(TM) 64-Bit Server VM (build 25.20-b23, mixed mode)

        ADDITIONAL OS VERSION INFORMATION :
        OS X:
        Darwin Kernel Version 13.3.0: Tue Jun 3 21:27:35 PDT 2014; root:xnu-2422.110.17~1/RELEASE_X86_64 x86_64

        A DESCRIPTION OF THE PROBLEM :
        The mime type for .png files as supplied by javax.activation.FileTypeMap and
        javax.activation.MimetypesFileTypeMap seems to be missing. When using the getContentType() method from these classes to lookup the mime type for a file name, they return "application/octet-stream" and not "image/png".

        REGRESSION. Last worked in version 7u51

        ADDITIONAL REGRESSION INFORMATION:
        Can confirm the issue does not exist in:

        java version "1.7.0_51"
        Java(TM) SE Runtime Environment (build 1.7.0_51-b13)
        Java HotSpot(TM) 64-Bit Server VM (build 24.51-b03, mixed mode)

        STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
        Call one of the following methods:

        MimetypesFileTypeMap.getDefaultFileTypeMap().getContentType(String);
         FileTypeMap.getDefaultFileTypeMap().getContentType(String);



        EXPECTED VERSUS ACTUAL BEHAVIOR :
        EXPECTED -
        With a file name ending in ".png", I expect them to return "application/png"
        ACTUAL -
        With a file name ending in ".png" they return "application/octet-stream"

        REPRODUCIBILITY :
        This bug can be reproduced always.

        ---------- BEGIN SOURCE ----------
        Test Case:


        import javax.activation.FileTypeMap;
        import javax.activation.MimetypesFileTypeMap;

        public class ContentTypeTest {

            public static void main(String... args) throws Exception {
                System.out.printf("Testing Java verision %s\n", System.getProperties().getProperty("java.version"));
                String[] map[] = new String[][]{
                    {"foo.png", "image/png",},
                    {"foo.gif", "image/gif",},
                    {"foo.jpg", "image/jpeg",},
                    {"foo.jpeg", "image/jpeg"},
                    {"foo.tiff", "image/tiff"}
                };

                for (String pair[] : map) {
                    String ex = pair[0];
                    String tp = pair[1];
                    String mftm = MimetypesFileTypeMap.getDefaultFileTypeMap().getContentType(ex);
                    String ftm = FileTypeMap.getDefaultFileTypeMap().getContentType(ex);
                    boolean ok = true;
                    if (!tp.equals(mftm)) {
                        ok = false;
                    }
                    if (!tp.equals(ftm)) {
                        ok = false;
                    }
                    if (ok) {
                        System.out.printf("%s: OK\n", tp);
                    } else {
                        System.out.printf("%s: ERROR, FileTypeMap = %s, MimetypesFileTypeMap = %s\n", tp, ftm, mftm);
                    }
                }
            }

        }
        ---------- END SOURCE ----------

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                Assignee:
                rgrigoriadi Roman Grigoriadi (Inactive)
                Reporter:
                webbuggrp Webbug Group
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                  Updated:
                  Resolved: