[GROOVY-5918] JsonBuilder.toString() fails with StackOverflowError when using Expando

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.1.0-rc-1
• Fix Version/s: 2.1.0-rc-3, 2.1.0, 2.0.7
• Component/s: groovy-jdk
• Environment: > groovy --version; Groovy Version: 2.1.0-rc-1 JVM: 1.7.0_09 Vendor: Oracle Corporation OS: Windows 7
• Assignee: Paul King
• Reporter: Alan Thompson
• Created: 16/Jan/13 23:32
• Updated: 21/Jan/13 14:13
• Resolved: 21/Jan/13 04:38

Description

When JsonBuilder is constructed with an Expando parameter, the toString() method fails with a StackOverflowError. A partial workaround is to convert to use Expando.getProperties() to convert the Expando into a Map, but this fails for any nested Expandos.

Example code & output are attached.

Alan Thompson