[XERCESJ-1580] Out of memory while validating an XML instance with a schema that contains particles with a large maxOccurs

• Type: Bug
• Status: Resolved
• Priority: Critical
• Resolution: Duplicate
• Component/s: XML Schema 1.1 Structures
• Assignee: Unassigned
• Reporter: Octavian Nadolu
• Created: 22/Aug/12 11:56
• Updated: 07/Mar/14 15:45
• Resolved: 07/Mar/14 15:45

Description

I obtain an OutOfMemory exception when i validate the XML instance "test.xml" with the schema "test.xsd".

You can reproduce the issue on the xml-schema-1.1-dev branch, using the jaxp.SourceValidator as follows:
jaxp.SourceValidator -xsd11 -a test.xsd -i test.xml

Please note that this exception occurs only if the "full schema checking" feature is disabled.

XML instance: test.xml
<doc>
<a/>
<b/>
</doc>

Schema: test.xsd

<xsd:schema xmlns:xsd='http://www.w3.org/2001/XMLSchema' >
<xsd:complexType name='fooType' >
<xsd:choice maxOccurs="100000">
<xsd:sequence maxOccurs="100000000">
<xsd:element name='a' maxOccurs="unbounded"/>
</xsd:sequence>
<xsd:element name="b"/>
</xsd:choice>
</xsd:complexType>
<xsd:element name="doc" type="fooType"/>
</xsd:schema>

Issue Links

• duplicates: XERCESJ-1227 Poor performance / OutOfMemoryError for sequences, choices and nested with large minOccurs/maxOccurs