Are there special permissions (file access) required for reports write to temporary files?

Report BUILDER 11.1.0.7 (64-bit)

Form builder 11.1.2.1.0 (64-bit)

Windows 7 Pro 64-bit

Java:

Java version "1.6.0_45".

Java (TM) SE Runtime Environment (build 1.6.0_45 - b06)

Java for 64-bit Server VM (build 20.45 - b01, mixed mode)

IDAutomation LinearBarcode.jar


I have a report that prints the data with bar code on the detail rows in a report.  It uses the Java LinearBarcode.jar by Idautomation package for this purpose.  The Java package contains an encoder that returns a bar code in the form of a GIF image to a field on the report.  One of the arguments that it requires is a name of temporary file generated by srw.create_temporary_filename ().  When it works perfectly, and it creates the temporary image file in my folder tree 'House' (C:\Users\ < username > \AppData\Local\Temp) run under the report generator.  When I run this report generator with fast running behind her I can watch the report search, open, read and close this file LinearBarcode.jar several times for successive lines of the report.  Everything seems to be very good in the generator.

The fun begins when I try to call the same report from a FORM (Form Builder fleeing), where he fails every time, somewhere in the image generation stage.  In my view, that it fails to the creation of the image itself, when he tries to open the file for writing temporary image.  I can find the empty temporary files left after the report runs and fails, but the size of the file is zero byte.  When I run this report of my test form with Microsoft quick run behind it I see the report search, open, read and close this file LinearBarcode.jar for the first line of data in the report, then the report fails.  So, I know that the .jar file and the required REPORTS_CLASSPATH/CLASSPATH entries are synchronized with the location of the .jar file.  The report runs, and he finds the LinearBarcode.jar, it opens, it reads and closes it.  What I do is to not see any activity related to the image itself temporary file.   Thus, failure at least gives the impression of being in the image create step itself, which makes me doubt the safety of Java.  However, there is no message popup on Java security problems.

I tried implementing Trace for reports, but also, that does not give something of use, except to confirm that the report is certainly a failure in the creation of barcode code somewhere.  This is known from the error message in the log file: fatal error REP-1401 < barcode create procedure name >

I'm guessing that he might be a missing 'writing' somewhere authorization prevent the creation of the temporary file used to generate the barcode image file. This error only occurs under Java (run from a form). I was not able to find something about it by reading everything I could find on the OracleBarcode.jar demo.  I also not found anything in Google searches that does not count.

Are special permissions to allow these operations to temporary file as shown above?  If Yes, where and how are they set?  If this isn't the case, else anyone seen this issue before?

Thanks in advance

Hank

Resolved: This issue had nothing to do with the creation of barcodes. It turns out that there is a field in the State who had no defined source. It was not rendered because it was hidden by a format trigger. It seems that this case is handled by the constructor, but blew the engine in the reporting process used when a report is called by the forms. It took a long process of elimination, elimination of triggers, fields, parameters, and even the generation of bar code code until I found it.

Thank you

Hank

Tags: Oracle Development

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