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Saxon 11 HE: can I create a Configuration without Saxon trying to instantiate its StandardLogger class which tries to access System.err?

Added by Martin Honnen over 2 years ago

I am still trying to find some way to run Saxon 11 under .NET MAUI, I have had limited success with SaxonCS under Windows and now also with an IKVM cross-compiled Saxon HE 11.4 Java.

Trying to get the latter to run on an iOs simulator I always end up with an exception thrown by Saxon trying instantiate a StandardLogger which has a property private PrintWriter writer = new PrintWriter(System.err); set up in https://saxonica.plan.io/projects/saxonmirrorhe/repository/he/revisions/he_mirror_saxon_11_4/entry/src/main/java/net/sf/saxon/lib/StandardLogger.java#L26.

Under the iOs that gives an exception basically saying it is not supported on that platform (I have pasted a Stacktrace further below).

It seems I can implement the abstract Logger class with my own subclass to avoid the use of StandardLogger but how could I create a Configuration that doesn't first create a StandardLogger?

There seems to be only the new Configuration() constructor and later a way to do setLogger(). But before I get there it looks as if Configuration nevertheless tries to instantiate a StandardLogger (trying to access System.err which gives me an exception).

Any ideas?

System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation.
 ---> System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation.
 ---> System.TypeInitializationException: The type initializer for 'java.lang.StdIO' threw an exception.
 ---> System.TypeInitializationException: The type initializer for 'java.io.FileDescriptor' threw an exception.
 ---> System.PlatformNotSupportedException: Operation is not supported on this platform.
   at System.ConsolePal.OpenStandardInput()
   at System.Console.OpenStandardInput()
   at java.io.FileDescriptor.getStandardStream(Int32 fd)
   at java.io.FileDescriptor.standardStream(Int32 fd)
   at java.io.FileDescriptor..cctor()
   --- End of inner exception stack trace ---
   at java.lang.StdIO..cctor()
   --- End of inner exception stack trace ---
   at java.lang.System.get_err()
   at net.sf.saxon.lib.StandardLo
gger..ctor()
   at net.sf.saxon.Configuration..ctor()

Replies (1)

RE: Saxon 11 HE: can I create a Configuration without Saxon trying to instantiate its StandardLogger class which tries to access System.err? - Added by Michael Kay over 2 years ago

The answer to the headline question: no it's not possible.

Obviously, this is easy enough to change.

    (1-1/1)

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