• Type: Bug Report
• Resolution: Unresolved
• Priority: L3 - Default
• Fix Version/s: None
• Affects Version/s: None
• Component/s: spin
• Labels:

  None

This is the controller panel for Smart Panels app

[CAM-4999] I cannot set a JSON property to null in untyped scripting languages

Thorben Lindhauer created issue - 18/Nov/15 5:57 PM

Thorben Lindhauer made changes - 18/Nov/15 5:58 PM

Link

New: This issue is related to CAM-4479 [ CAM-4479 ]

Thorben Lindhauer made changes - 18/Nov/15 5:59 PM

Description

Original: In Javascript (and probably any other untyped scripting language), there is no way to set a JSON property to null using Spin. For example, this fails: {code} node = S(input, "application/json"); node.prop("order", null); {code} with the error: {code} Can't unambiguously select between fixed arity signatures [(java.lang.String, org.camunda.spin.json.SpinJsonNode), (java.lang.String, java.lang.Boolean), (java.lang.String, java.lang.String), (java.lang.String, java.util.Map), (java.lang.String, java.util.List), (java.lang.String, java.lang.Number)] of the method org.camunda.spin.impl.json.jackson.JacksonJsonNode.prop for argument types [java.lang.String, null] {code}

New: In Javascript (and probably any other untyped scripting language), there is no way to set a JSON property to null using Spin. For example, this fails: {code} node = S(input, "application/json"); node.prop("order", null); {code} with the error: {code} Can't unambiguously select between fixed arity signatures [(java.lang.String, org.camunda.spin.json.SpinJsonNode), (java.lang.String, java.lang.Boolean), (java.lang.String, java.lang.String), (java.lang.String, java.util.Map), (java.lang.String, java.util.List), (java.lang.String, java.lang.Number)] of the method org.camunda.spin.impl.json.jackson.JacksonJsonNode.prop for argument types [java.lang.String, null] {code} and there appears to be no Nashorn extension to explicitly select one of them (plus that would not be very convenient/obvious for users).

Thorben Lindhauer made changes - 18/Nov/15 6:02 PM

Description

Original: In Javascript (and probably any other untyped scripting language), there is no way to set a JSON property to null using Spin. For example, this fails: {code} node = S(input, "application/json"); node.prop("order", null); {code} with the error: {code} Can't unambiguously select between fixed arity signatures [(java.lang.String, org.camunda.spin.json.SpinJsonNode), (java.lang.String, java.lang.Boolean), (java.lang.String, java.lang.String), (java.lang.String, java.util.Map), (java.lang.String, java.util.List), (java.lang.String, java.lang.Number)] of the method org.camunda.spin.impl.json.jackson.JacksonJsonNode.prop for argument types [java.lang.String, null] {code} and there appears to be no Nashorn extension to explicitly select one of them (plus that would not be very convenient/obvious for users).

New: In Javascript (and probably any other untyped scripting language), there is no way to set a JSON property to null using Spin. For example, this fails: {code} node = S(input, "application/json"); node.prop("order", null); {code} with the error: {code} Can't unambiguously select between fixed arity signatures [(java.lang.String, org.camunda.spin.json.SpinJsonNode), (java.lang.String, java.lang.Boolean), (java.lang.String, java.lang.String), (java.lang.String, java.util.Map), (java.lang.String, java.util.List), (java.lang.String, java.lang.Number)] of the method org.camunda.spin.impl.json.jackson.JacksonJsonNode.prop for argument types [java.lang.String, null] {code} Apparently, some scripting engines have more or less ugly extensions to explicitly select a method. For example, in Nashorn, the problem can be worked around as follows: {{node["prop(String, String)"]("order", null);}}

Thorben Lindhauer made changes - 14/Feb/19 2:55 PM

Workflow

Original: camunda BPM [ 31781 ]

New: Backup_camunda BPM [ 55694 ]

Collapse comment: Thorben Lindhauer added a comment - 12/Oct/22 10:42 AM

Thorben Lindhauer added a comment - 12/Oct/22 10:42 AM

This ticket was migrated to github: https://github.com/camunda/camunda-bpm-platform/issues/2102. Please use this link for any future references and continue any discussion there.

Expand comment: Thorben Lindhauer added a comment - 12/Oct/22 10:42 AM

Thorben Lindhauer added a comment - 12/Oct/22 10:42 AM This ticket was migrated to github: https://github.com/camunda/camunda-bpm-platform/issues/2102 . Please use this link for any future references and continue any discussion there.