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Eagerly loading/initializing pthread library to prevent a race that may crash JVM #9780

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Eagerly loading/initializing pthread library to prevent a race that may crash JVM #9780

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d700646
Race on late initializing crash tracking results JVM to crash
zhengyu123 Oct 16, 2025
51dcb98
Use FileSystems.getDefault() to force loading nio library
zhengyu123 Oct 17, 2025
c96d579
Force loading/initializing pthread early on main thread
zhengyu123 Oct 20, 2025
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7 changes: 7 additions & 0 deletions dd-java-agent/agent-bootstrap/src/main/java/datadog/trace/bootstrap/Agent.java
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Expand Up @@ -63,6 +63,7 @@
import java.net.MalformedURLException;
import java.net.URISyntaxException;
import java.net.URL;
import java.nio.file.FileSystems;
import java.security.CodeSource;
import java.util.EnumSet;
import java.util.concurrent.TimeUnit;
Expand Down Expand Up @@ -290,6 +291,12 @@ public static void start(
startCwsAgent();
}

// To workaround JDK-8345810, we want to trigger loading/initializing of pthread library on
// main thread (Linux only)
if (OperatingSystem.isLinux()) {
FileSystems.getDefault();
}

/*
* Force the task scheduler init early. The exception profiling instrumentation may get in way of the initialization
* when it will happen after the class transformers were added.
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