[ATLAS-645] FieldMapping.output() results in stack overflow when instances reference each other

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.7-incubating
• Assignee: Dave Kantor
• Reporter: Shwetha GS
• Created: 07/Apr/16 05:48
• Updated: 13/May/16 09:52
• Resolved: 13/May/16 09:52

Description

FieldMapping.output() results in a stack overflow due to infinite recursion when two IReferenceableInstance or IStruct objects reference each other. This issue was first exposed by GraphBackedMetadataRepositoryDeleteEntitiesTest.testDisconnectMapReferenceFromClassType().

SLF4J: Failed toString() invocation on an object of type [org.apache.atlas.typesystem.persistence.ReferenceableInstance]
java.lang.StackOverflowError
	at java.util.regex.Pattern$GroupHead.match(Pattern.java:4556)
	at java.util.regex.Pattern$Branch.match(Pattern.java:4502)
	at java.util.regex.Pattern$BranchConn.match(Pattern.java:4466)
	at java.util.regex.Pattern$GroupTail.match(Pattern.java:4615)
	at java.util.regex.Pattern$Curly.match0(Pattern.java:4177)
	at java.util.regex.Pattern$Curly.match(Pattern.java:4132)
	at java.util.regex.Pattern$GroupHead.match(Pattern.java:4556)
	at java.util.regex.Pattern$Branch.match(Pattern.java:4502)
	at java.util.regex.Pattern$Branch.match(Pattern.java:4500)
	at java.util.regex.Pattern$BmpCharProperty.match(Pattern.java:3715)
	at java.util.regex.Pattern$Start.match(Pattern.java:3408)
	at java.util.regex.Matcher.search(Matcher.java:1199)
	at java.util.regex.Matcher.find(Matcher.java:618)
	at java.util.Formatter.parse(Formatter.java:2517)
	at java.util.Formatter.format(Formatter.java:2469)
	at java.util.Formatter.format(Formatter.java:2423)
	at java.lang.String.format(String.java:2792)
	at org.apache.atlas.typesystem.persistence.Id.toString(Id.java:98)
	at org.apache.atlas.typesystem.types.FieldMapping.output(FieldMapping.java:114)
	at org.apache.atlas.typesystem.persistence.ReferenceableInstance.toString(ReferenceableInstance.java:92)