Paper 1.16.5 Java 17 ^new^ Link

Wait, this shouldn't happen with 1.16.5 – means you accidentally downloaded a Paper 1.17+ jar. Redownload build 794.

Have you successfully run Paper 1.16.5 on Java 17? Share your plugin list or encountered errors in the comments below. For further reading, check out the official PaperMC Discord’s #legacy-help channel.

Given this, squeezing another 2-3 years out of your 1.16.5 server with a modern JVM is a smart financial and technical decision. paper 1.16.5 java 17

Also, add this to paper.yml under settings :

Historically, Minecraft versions below 1.17 were hardcoded or optimized strictly for Java 8. Running them on newer Java versions used to result in errors, crashes, or class version mismatches. However, the Paper development team recognized the community's need to modernize their runtimes without forcing a game update. Wait, this shouldn't happen with 1

Open server.properties and set:

remains a golden era for many server owners. It strikes a perfect balance: modern enough to have the revamped Nether, piglin bartering, and striders, yet free from the complex world height changes and performance hurdles of later updates like 1.18 and 1.20. Share your plugin list or encountered errors in

| Flag | Purpose | |------|---------| | --add-opens java.base/java.lang=ALL-UNNAMED | Fixes reflection issues in older plugins | | --add-opens java.base/java.util=ALL-UNNAMED | Required for some serialization libs | | --add-opens java.base/sun.nio.ch=ALL-UNNAMED | Helps Netty (Minecraft networking) | | -Dio.netty.tryReflectionSetAccessible=true | Allows Netty to work with Java 17 | | -Dpaper.disableLegacyEntityUpgrade=true | Paper-specific fix for 1.16.5 -> Java 17 entity loading |

Starting with Java 16, the JDK tightened security regarding "reflection." Minecraft and Bukkit/Spigot/Paper rely

It requires fewer resources than the newer, world-height-expanded versions (1.18+). The Java 17 Advantage

Don't use the latest "build" number from the main Paper site if you want stability. The final, most stable release is: