B4J Question How to read the EXIF metadata from an large jpg image with B4J?

js486dog · May 1, 2024

I modified this code:

LOOK HERE

and I am attaching a program that reads latitude and longitude from a jpg file.
jar file for Libraries folder is attached.

Everything seems to be fine as long as the 360 degree jpg file is small (164 kb).
But the problem arises if the 360 degree jpg file is large (14 MB).
Could someone please advise me how to modify the code to read metadata from a large jpg file as well?
Or is there any other way to read the EXIF metadata (latitude, longitude ...) with B4J?

js486dog · May 1, 2024

Daestrum said:
Looks like you are missing the xmpcore-x.x.xx.jar which contains the missing class (the x in the name is the version etc, get the latest one that works).

Thank you very much "Daestrum" now works fine with xmpcore-5.1.2.
Do not work with xmpcore-6.1.11.

Erel · May 1, 2024

1. What happens with the large file?

2. It will probably behave the same, but please try it with the code I posted in that thread.

js486dog · May 1, 2024

Erel said:
1. What happens with the large file?

2. It will probably behave the same, but please try it with the code I posted in that thread.

Erel, please look at the attached pictures and the ERROR report:

WARNING: package com.sun.javafx.embed.swing.oldimpl not in javafx.swing
Waiting for debugger to connect...
Program started.
Error occurred on line: 30 (Main)
java.lang.reflect.InvocationTargetException
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:564)
at anywheresoftware.b4j.object.JavaObject.RunMethod(JavaObject.java:132)
at b4j.example.main._appstart(main.java:104)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:564)
at anywheresoftware.b4a.shell.Shell.runMethod(Shell.java:629)
at anywheresoftware.b4a.shell.Shell.raiseEventImpl(Shell.java:237)
at anywheresoftware.b4a.shell.Shell.raiseEvent(Shell.java:167)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:564)
at anywheresoftware.b4a.BA.raiseEvent2(BA.java:111)
at anywheresoftware.b4a.shell.ShellBA.raiseEvent2(ShellBA.java:100)
at anywheresoftware.b4a.BA.raiseEvent(BA.java:98)
at b4j.example.main.start(main.java:43)
at javafx.graphics/com.sun.javafx.application.LauncherImpl.lambda$launchApplication1$9(LauncherImpl.java:846)
at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runAndWait$12(PlatformImpl.java:455)
at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runLater$10(PlatformImpl.java:428)
at java.base/java.security.AccessController.doPrivileged(AccessController.java:391)
at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runLater$11(PlatformImpl.java:427)
at javafx.graphics/com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:96)
at javafx.graphics/com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
at javafx.graphics/com.sun.glass.ui.win.WinApplication.lambda$runLoop$3(WinApplication.java:174)
at java.base/java.lang.Thread.run(Thread.java:832)
Caused by: java.lang.NoClassDefFoundError: com/adobe/xmp/XMPException
at com.drew.imaging.jpeg.JpegMetadataReader.extractMetadataFromJpegSegmentReader(JpegMetadataReader.java:112)
at com.drew.imaging.jpeg.JpegMetadataReader.readMetadata(JpegMetadataReader.java:71)
at com.drew.imaging.ImageMetadataReader.readMetadata(ImageMetadataReader.java:108)
at com.drew.imaging.ImageMetadataReader.readMetadata(ImageMetadataReader.java:95)
at b4j.example.main.GetImgMeta(main.java:201)
... 30 more
Caused by: java.lang.ClassNotFoundException: com.adobe.xmp.XMPException
at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:602)
at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:178)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:522)
... 35 more

Daestrum · May 1, 2024

Looks like you are missing the xmpcore-x.x.xx.jar which contains the missing class (the x in the name is the version etc, get the latest one that works).

teddybear · May 1, 2024

js486dog said:
Erel, please look at the attached pictures and the ERROR report:

Can you provide the large image?

js486dog · May 1, 2024

Daestrum said:
Looks like you are missing the xmpcore-x.x.xx.jar which contains the missing class (the x in the name is the version etc, get the latest one that works).

Thank you very much "Daestrum" now works fine with xmpcore-5.1.2.
Do not work with xmpcore-6.1.11.

js486dog · May 1, 2024

teddybear said:
Can you provide the large image?

Thank you for your response.
The solution given by "Daestrum" helped. Look at the post 4.

B4J Question How to read the EXIF metadata from an large jpg image with B4J?

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