Spring Data - MongoDB - java.lang.OutOfMemoryError: Java heap space

[patrickr]

Hi,

Was playing around with Spring Data and Mongo DB. I want to store a KML file (see below) using Java API for KML. I do this by simply unmarshaling the XML into an object and pass this to Spring Data. There seems to be some infinite recursion happening:

java.lang.OutOfMemoryError: Java heap space
	at sun.reflect.ConstantPool.getUTF8At0(Native Method)
	at sun.reflect.ConstantPool.getUTF8At(ConstantPool.java:35)
	at sun.reflect.annotation.AnnotationParser.parseAnnotation(AnnotationParser.java:180)
	at sun.reflect.annotation.AnnotationParser.parseAnnotations2(AnnotationParser.java:69)
	at sun.reflect.annotation.AnnotationParser.parseAnnotations(AnnotationParser.java:52)
	at java.lang.reflect.Field.declaredAnnotations(Field.java:1014)
	at java.lang.reflect.Field.getAnnotation(Field.java:1000)
	at org.springframework.data.mapping.BasicMappingContext.isTransient(BasicMappingContext.java:371)
	at org.springframework.data.mapping.BasicMappingContext.isPersistentProperty(BasicMappingContext.java:287)
	at org.springframework.data.mapping.BasicMappingContext$1.doWith(BasicMappingContext.java:156)
	at org.springframework.util.ReflectionUtils.doWithFields(ReflectionUtils.java:513)
	at org.springframework.data.mapping.BasicMappingContext.addPersistentEntity(BasicMappingContext.java:151)
	at org.springframework.data.mapping.BasicMappingContext$1.doWith(BasicMappingContext.java:172)
	at org.springframework.util.ReflectionUtils.doWithFields(ReflectionUtils.java:513)
	at org.springframework.data.mapping.BasicMappingContext.addPersistentEntity(BasicMappingContext.java:151)
	at org.springframework.data.mapping.BasicMappingContext$1.doWith(BasicMappingContext.java:172)
	at org.springframework.util.ReflectionUtils.doWithFields(ReflectionUtils.java:513)
	at org.springframework.data.mapping.BasicMappingContext.addPersistentEntity(BasicMappingContext.java:151)
	at org.springframework.data.mapping.BasicMappingContext$1.doWith(BasicMappingContext.java:172)
	at org.springframework.util.ReflectionUtils.doWithFields(ReflectionUtils.java:513)
	at org.springframework.data.mapping.BasicMappingContext.addPersistentEntity(BasicMappingContext.java:151)
	at org.springframework.data.mapping.BasicMappingContext$1.doWith(BasicMappingContext.java:172)
	at org.springframework.util.ReflectionUtils.doWithFields(ReflectionUtils.java:513)
	at org.springframework.data.mapping.BasicMappingContext.addPersistentEntity(BasicMappingContext.java:151)
	at org.springframework.data.mapping.BasicMappingContext$1.doWith(BasicMappingContext.java:172)
	at org.springframework.util.ReflectionUtils.doWithFields(ReflectionUtils.java:513)
	at org.springframework.data.mapping.BasicMappingContext.addPersistentEntity(BasicMappingContext.java:151)
	at org.springframework.data.mapping.BasicMappingContext$1.doWith(BasicMappingContext.java:172)
	at org.springframework.util.ReflectionUtils.doWithFields(ReflectionUtils.java:513)
	at org.springframework.data.mapping.BasicMappingContext.addPersistentEntity(BasicMappingContext.java:151)
	at org.springframework.data.mapping.BasicMappingContext$1.doWith(BasicMappingContext.java:172)
	at org.springframework.util.ReflectionUtils.doWithFields(ReflectionUtils.java:513)

Would someone create JIRA ticket for this (or tell me how I can get access)?

Thanks
Patrick

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<kml xmlns="http://www.opengis.net/kml/2.2" >
    <Placemark>
        <name>Java User Group Hessen - JUGH!</name>
        <visibility>true</visibility>
        <open>false</open>
        <description>die Java User Group Hessen [...]</description>
        <styleUrl>styles.kml#jugh_style</styleUrl>
        <Point>
            <extrude>false</extrude>
            <altitudeMode>clampToGround</altitudeMode>
            <coordinates>9.444652669565212,51.30473589438118</coordinates>
        </Point>
    </Placemark>
</kml>

[Matthias S.]

More interesting than the XML/KML is how does the object look like?

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[patrickr]

More interesting than the XML/KML is how does the object look like?

Right, here you go: http://code.google.com/p/javaapifork...2_2_0/Kml.java

Also, you could checkout my complete project to reproduce:
https://github.com/patman42/Spring-J.../javaapiforkml

You get access to JIRA by registering.

Thanks, had some issues yesterday but today it worked. Should I create a ticket referencing this post?

[Matthias S.]

How much heap space is available?
Have you tried using xml configuration?

I think the object might be to complex, with references to interfaces and so on. But it could also be a bug, i don't see a reason why non spring-data annotations should be processed.