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Java Machine Agent not reporting metrics due to JSON Mapping Exception


The Java Machine Agent is not reporting metrics. The following error message is displayed in the Machine Agent logs:

[extension-scheduler-pool-1] 11 October 2017 08:54:03,625 ERROR RawCollectorUtil - 
Could not collect raw data
 com.fasterxml.jackson.databind.JsonMappingException: Unrecognized character escape ‘d’ (code 100)

at [Source:; line: 159; column: 115453]
at [Source:; line: 159; column: 115453] (through reference chain:


Restart the machine agent with the following startup parameter:


java -Dappdynamics.machine.agent.extensions.linux.newFrameworkEnabled=false -jar machineagent.jar

Version history
Revision #:
5 of 5
Last update:
‎05-08-2020 10:59 PM
Updated by:
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