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"java.lang.NullPointerException" Error when Generating XSD Schema from a JSON File (Doc ID 2613312.1)

Last updated on MARCH 22, 2023

Applies to:

Oracle Data Integrator - Version 12.2.1.4.0 and later
Oracle Data Integrator on Marketplace - Version 12.2.1.4.200123 and later
Information in this document applies to any platform.

Symptoms

The following error occurs in Oracle Data Integrator (ODI) Studio log when trying to generate the XML Schema Definition (XSD) schema for a JavaScript Object Notation (JSON) file using the "Native Format Builder" wizard included in the Complex File technology (accessible from tab "JDBC", button "Edit nXSD..."):

[ERROR] [] [oracle.tip.tools.ide.nxsd.FlatFileSampleJSONDescriptionPanel] [tid: 16] [ecid:,0] java.lang.NullPointerException[[
at oracle.tip.pc.services.translation.tools.datasampler.JsonDataSampler.generateSchemaFromSample(JsonDataSampler.java:86)
at oracle.tip.tools.ide.nxsd.FlatFileSampleJSONDescriptionPanel.generateNXSD(FlatFileSampleJSONDescriptionPanel.java:839)
at oracle.tip.tools.ide.nxsd.FlatFileSampleJSONDescriptionPanel.validate(FlatFileSampleJSONDescriptionPanel.java:558)
at oracle.tip.tools.ide.nxsd.FlatFileWizard.wizardValidatePage(FlatFileWizard.java:774)
at oracle.bali.ewt.wizard.WizardPage.processWizardValidateEvent(WizardPage.java:710)
.................................................

In ODI Studio an error window with no message is shown. The error appears only in ODI Studio log.
The issue occurs when the JSON file contains an empty string, like in the example below:

Cause

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