Apache Jackrabbit FileVault tool is responsible for Synchronizing files in the File System with content in the JCR repository. Sadly, FileVault version 3.1.38 has a bug that serializes .content.xml file (
the one that contains the node properties) almost empty.
Since AEM plugin for Eclipse uses Sling-Ide-Tooling internally (AEM Developer Tools for Eclipse ), and *Sling-Ide-tooling*uses Apache Jackrabbit FileVault tool behind the scenes (sling-ide-tooling/impl-vlt/src/org/apache/sling/ide at master - apache/sling-ide-tooling - GitHub ), we end up having that same issue (
almost empty .content.xml files) when using AEM plugin for Eclipse.
This issue is also discussed here: https://forums.adobe.com/message/10181131#10181131
Upgrading to FileVault 3.1.42 (latest) is recommended.