Closed
Description
The XML-Pull parser does not handle invalid XML files very well.
The attached file contains incomplete XML data. When running this file through the parser, a lot of 'char's are allocated and not freed anymore until there is no free memory left which leads to an OOM.
The parser works very well with a complete, valid XML file of the same format and data.
This might be related to ticket #3840
You can easily reproduce the exception with the attached files:
Welcome to Scala version 2.9.0.r24458-b20110315020117 (Java HotSpot(TM) 64-Bit Server VM, Java 1.6.0_24).
Type in expressions to have them evaluated.
Type :help for more information.
scala> import scala.xml.pull.XMLEventReader
import scala.xml.pull.XMLEventReader
scala> import scala.io.Source
import scala.io.Source
scala> val parser = new XMLEventReader( Source.fromFile("intervals.SRER.xml.defect") )
parser: scala.xml.pull.XMLEventReader = non-empty iterator
scala> while (parser.hasNext) parser.next
Exception in thread "XMLEventReader" java.lang.OutOfMemoryError: Java heap space
at java.util.Arrays.copyOf(Arrays.java:2882)
at java.lang.AbstractStringBuilder.expandCapacity(AbstractStringBuilder.java:100)
at java.lang.AbstractStringBuilder.append(AbstractStringBuilder.java:572)
at java.lang.StringBuilder.append(StringBuilder.java:203)
at scala.collection.mutable.StringBuilder.append(StringBuilder.scala:252)
at scala.xml.parsing.MarkupParserCommon$$class.xAttributeValue(MarkupParserCommon.scala:66)
at scala.xml.pull.XMLEventReader$$Parser.xAttributeValue(XMLEventReader.scala:58)
at scala.xml.parsing.MarkupParserCommon$$class.xAttributeValue(MarkupParserCommon.scala:74)
at scala.xml.pull.XMLEventReader$$Parser.xAttributeValue(XMLEventReader.scala:58)
at scala.xml.parsing.MarkupParser$$class.xAttributes(MarkupParser.scala:294)
at scala.xml.pull.XMLEventReader$$Parser.xAttributes(XMLEventReader.scala:58)
at scala.xml.parsing.MarkupParser$$class.mkAttributes(MarkupParser.scala:261)
at scala.xml.pull.XMLEventReader$$Parser.mkAttributes(XMLEventReader.scala:58)
at scala.xml.pull.XMLEventReader$$Parser.mkAttributes(XMLEventReader.scala:58)
at scala.xml.parsing.MarkupParserCommon$$class.xTag(MarkupParserCommon.scala:44)
at scala.xml.pull.XMLEventReader$$Parser.xTag(XMLEventReader.scala:58)
at scala.xml.parsing.MarkupParser$$class.element1(MarkupParser.scala:528)
at scala.xml.pull.XMLEventReader$$Parser.element1(XMLEventReader.scala:58)
at scala.xml.parsing.MarkupParser$$class.content1(MarkupParser.scala:396)
at scala.xml.pull.XMLEventReader$$Parser.content1(XMLEventReader.scala:58)
at scala.xml.parsing.MarkupParser$$class.content(MarkupParser.scala:417)
at scala.xml.pull.XMLEventReader$$Parser.content(XMLEventReader.scala:58)
at scala.xml.parsing.MarkupParser$$class.element1(MarkupParser.scala:542)
at scala.xml.pull.XMLEventReader$$Parser.element1(XMLEventReader.scala:58)
at scala.xml.parsing.MarkupParser$$class.content1(MarkupParser.scala:396)
at scala.xml.pull.XMLEventReader$$Parser.content1(XMLEventReader.scala:58)
at scala.xml.parsing.MarkupParser$$class.content(MarkupParser.scala:417)
at scala.xml.pull.XMLEventReader$$Parser.content(XMLEventReader.scala:58)
at scala.xml.parsing.MarkupParser$$class.element1(MarkupParser.scala:542)
at scala.xml.pull.XMLEventReader$$Parser.element1(XMLEventReader.scala:58)
at scala.xml.parsing.MarkupParser$$class.content1(MarkupParser.scala:396)
at scala.xml.pull.XMLEventReader$$Parser.content1(XMLEventReader.scala:58)=== Additional information ===
Input file is attached to this ticket as bz2.
=== What versions of the following are you using? ===
- Scala: 2.9.0.r24458-b20110315020117
- Java: java version "1.6.0_24"
- Operating system: Mac OS X 10.6