السلام عليكم ورحمة الله وبركاته
عند استخدام ال webutil كما يلي:

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declare

data_file CLIENT_Text_IO.File_Type ;
begin

data_file := CLIENT_text_io.fopen ( 'out.txt', 'R');

end;

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يظهر الخطأ التالي:

java.lang.NullPointerException

at sun.io.Converters.getConverterClass(Unknown Source)

at sun.io.Converters.newConverter(Unknown Source)

at sun.io.ByteToCharConverter.getConverter(Unknown Source)

at java.io.InputStreamReader.<init>(Unknown Source)

at oracle.forms.webutil.file.FileFunctions.fopen(FileFunctions.java:413)

at oracle.forms.webutil.file.FileFunctions.getProperty(FileFunctions.java:188)

at oracle.forms.handler.UICommon.onGet(Unknown Source)

at oracle.forms.engine.Runform.onGetHandler(Unknown Source)

at oracle.forms.engine.Runform.processMessage(Unknown Source)

at oracle.forms.engine.Runform.processSet(Unknown Source)

at oracle.forms.engine.Runform.onMessageReal(Unknown Source)

at oracle.forms.engine.Runform.onMessage(Unknown Source)

at oracle.forms.engine.Runform.processEventEnd(Unknown Source)

at oracle.ewt.lwAWT.LWComponent.redispatchEvent(Unknown Source)

at oracle.ewt.lwAWT.LWComponent.processEvent(Unknown Source)

at java.awt.Component.dispatchEventImpl(Unknown Source)

at java.awt.Container.dispatchEventImpl(Unknown Source)

at java.awt.Component.dispatchEvent(Unknown Source)

at java.awt.EventQueue.dispatchEvent(Unknown Source)

at java.awt.EventDispatchThread.pumpOneEventForHierarchy(Unknown Source)

at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)

at java.awt.EventDispatchThread.pumpEvents(Unknown Source)

at java.awt.EventDispatchThread.run(Unknown Source)

2007-ماي-08 12:55:12.445 ERROR>WUC-15 [FileFunctions.fopen()] حدث خطأ غير متوقع، الاستثناء: java.lang.NullPointerException

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ارجو المساعدة وجزاكم الله خير

use TEXT_IO "NOT" CLIENT_TEXT_IO and the file will create on the server so you can copy this file to client using
webutil_file_transfer.as_to_client
and you will gain the performance because it is so fast i test it and it really work perfect