NPE in RestTemplate with Resource implementation where getFilename() returns null [SPR-10848]

[spring-projects-issues]

Gabriel Axel opened SPR-10848 and commented

When attempting to use a Resource implementation where getFilename() returns null, such as ByteArrayResource, as the payload for RestTemplate operations, ResourceHttpMessageConverter.ActivationMediaTypeFactory.getMediaType() calls FileTypeMap.getContentType() with null value which throws NullPointerException.

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Affects: 3.2.4

Referenced from: commits a17912d, d662067

[spring-projects-issues]

Gabriel Axel commented

Submitted pull request with fix: #339