[jira] [Assigned] (CAMEL-25110) camel-core - Property placeholder parser: fix bugs found in a deep review

["Claus Ibsen (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CAMEL-25110?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Claus Ibsen reassigned CAMEL-25110:
-----------------------------------

    Assignee: Claus Ibsen

> camel-core - Property placeholder parser: fix bugs found in a deep review
> -------------------------------------------------------------------------
>
>                 Key: CAMEL-25110
>                 URL: https://issues.apache.org/jira/browse/CAMEL-25110
>             Project: Camel
>          Issue Type: Bug
>          Components: camel-core
>            Reporter: Claus Ibsen
>            Assignee: Claus Ibsen
>            Priority: Minor
>
> A review of the property placeholder parser (DefaultPropertiesParser) found these bugs:
> # The documented optional form of a properties function {{ {{env:?KEY}} }} always returns null for functions that do not look up the property first (env, sys, service, bean and the vault and kubernetes functions), even when the value exists, as the function is called with the key including the {{?}}.
> # The optional marker on the key of a function {{ {{?env:KEY}} }} is ignored, so a missing value fails.
> # With {{ignoreMissingProperty=true}} the internal marker {{@@[key]@@}} is returned instead of the unresolved placeholder {{ {{key}} }}, such as from {{CamelContext.resolvePropertyPlaceholders}} (used by the model and property binding).
> # A resolved value that ends with a backslash (such as a Windows path {{C:\temp\}}) escapes the next placeholder, as the resolved value is parsed again: {{ {{dir}}{{file}} }} fails with {{Missing {{ from the text: C:\temp\{{file}} }}.
> # With {{nestedPlaceholder=false}} the text before an unresolved optional placeholder is dropped ({{ abc{{?x}}def }} gives {{def}}).
> # With {{nestedPlaceholder=false}} an escaped backslash before a placeholder ({{ \\{{key}} }}) is not restored to a single backslash as documented.
> # The {{?nested=true|false}} option is removed from anywhere in the text (such as a query parameter of an endpoint uri), not only from the key of a placeholder.
> Not changed:
> * The resolved value reported for a key (dev console, summary) may be recorded for the wrong key when using nested placeholders or functions.
> * Default values are resolved before the key (so a default with a missing placeholder fails even when the key exists).
> _Claude Code on behalf of Claus Ibsen_



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