Java checkpoint

Checkpointing Java from outside of Java

Checkpointing Java from outside of Java

When OpenJDK‘s Java virtual machine (JVM) runs a Java application, it loads a dozen or so classes before it starts the main class. It runs a method several hundred times before it invokes the optimizing compiler on that method. This preparation is a critical component of Java’s “write once, run anywhere” power, but it comes at the cost of long startup times.

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