虚包：java15-runtime-headless
This is a virtual package. See the Debian policy for a definition of virtual packages.
负责填实 java15-runtime-headless 的软件包
- default-jre-headless
- Standard Java or Java compatible Runtime (headless)
- openjdk-17-jre-headless
- OpenJDK Java runtime, using Hotspot JIT (headless)