Paul Milliken created MSHARED-417:
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Summary: Infinite loop when loading self-referencing properties
Key: MSHARED-417
URL: https://issues.apache.org/jira/browse/MSHARED-417
Project: Maven Shared Components
Issue Type: Bug
Components: maven-filtering
Affects Versions: maven-filtering-1.3
Environment: Maven 3.2.5. Maven-filtering-1.3.
Reporter: Paul Milliken
I've recently encountered a situation in which maven-resources-plugin would
hang indefinitely when using resource filtering. I've managed to track it down
to the loadPropertyFile and getPropertyValue methods in PropertyUtils.
getPropertyValue appears to have some protection against a property referring
to itself. So, the following properties file loads fine:
{code}
test=${test}
test2=${test2}
{code}
With the value of the "test" property ending up as "${test}". However, if you
load the following properties file:
{code}
test=${test2}
test2=${test2}
{code}
then getPropertyValue seems to get stuck in a loop attempting to resolve the
property.
In our case, this was encountered as a result of a misconfiguration (our
filters.properties is being generated based on a number of sources, and
something was configured incorrectly). Causing the Maven process to hang
indefinitely (while using 100% of a CPU core) isn't ideal behaviour.
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