In a headless linux environment svg fails

[bonron]

An IllegalArgumentException is thrown with the following stack trace:

java.lang.reflect.InvocationTargetException
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at de.erichseifert.gral.io.plots.DrawableWriterFactory.get(SourceFile:81)
...(My API stack)...
Caused by: java.lang.IllegalArgumentException: Unsupported file format: image/svg+xml
at de.erichseifert.gral.io.plots.VectorWriter.(SourceFile:132)
... 38 more
java.lang.IllegalArgumentException: Unsupported MIME type: image/svg+xml
at de.erichseifert.gral.io.plots.DrawableWriterFactory.get(SourceFile:104)
...(My API stack)...

the message from the Exception is :

Unsupported MIME type: image/svg+xml

To reproduce use a headless server or docker image (make sure it is actually headless)

This is how I used the writer (note that it works perfectly fine on windows):
try {
DrawableWriter writer = DrawableWriterFactory.getInstance().get("image/svg+xml");
writer.write(plot, outputStream, 1450, 538);
} catch (IOException e) {
e.printStackTrace();
}

[bonron]

This is likely related to issue #145

[eseifert]

Thanks for reporting this. I’ll have a look into it as soon as I can.