In SpringBoot 2.3.0 or later, the placeholder used for the value of @PropertySource fails to be resolved.


The title is as it is. In SpringBoot 2.3.0 or later, if you use a placeholder like classpath: /something-config-${} .yml to specify the value of @ PropertySource, you will not be able to resolve it and an exception will occur. appear. The latest version of Boot today is 2.3.1.


@ConfigurationProperties(prefix = "something")
@PropertySource(value = {"classpath:/something-config.yml","classpath:/something-config-${}.yml"}, factory = YamlPropertySourceFactory.class)
public class SomethingConfig {

    private String setting1;
    private String setting2;


Caused by: java.lang.IllegalArgumentException: Could not resolve placeholder '' in value "classpath:/somethign-config-${}.yml"


I used 2.2 series for the time being.


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