Method Finalize

src/java/jres/jvmkill.go:135–177

Finalize adds JVMKill to JAVA_OPTS

()

// Finalize adds JVMKill to JAVA_OPTS
func (j *JVMKillAgent) Finalize() error {
	// If agentPath not set, try to detect it from previous installation
	if j.agentPath == "" {
		j.detectInstalledAgent()
	}

	if j.agentPath == "" {
		return nil // Not installed
	}

	j.ctx.Log.Info("Configuring JVMKill Agent")
	j.ctx.Log.Debug("JVMKill agent staging path: %s", j.agentPath)

	// Convert absolute staging path to runtime-relative path
	// Staging path: /tmp/contents.../deps/<idx>/jre/bin/jvmkill-1.16.0.so
	// Runtime path: $DEPS_DIR/<idx>/jre/bin/jvmkill-1.16.0.so
	runtimeAgentPath := j.convertToRuntimePath(j.agentPath)
	j.ctx.Log.Debug("JVMKill agent runtime path: %s", runtimeAgentPath)

	// Check if there's a volume service for heap dumps
	heapDumpPath := j.getHeapDumpPath()

	// Build agentpath with options
	// Format: -agentpath:/path/to/jvmkill.so=printHeapHistogram=1,heapDumpPath=/path
	var agentOpt string
	if heapDumpPath != "" {
		agentOpt = fmt.Sprintf("-agentpath:%s=printHeapHistogram=1,heapDumpPath=%s", runtimeAgentPath, heapDumpPath)
		j.ctx.Log.Info("Write terminal heap dumps to %s", heapDumpPath)
	} else {
		agentOpt = fmt.Sprintf("-agentpath:%s=printHeapHistogram=1", runtimeAgentPath)
	}

	j.ctx.Log.Debug("Adding to JAVA_OPTS: %s", agentOpt)

	// Add to JAVA_OPTS
	if err := WriteJavaOpts(j.ctx, agentOpt); err != nil {
		return fmt.Errorf("failed to add JVMKill to JAVA_OPTS: %w", err)
	}

	j.ctx.Log.Debug("JVMKill Agent added to JAVA_OPTS")

	return nil
}

// convertToRuntimePath converts a staging path to a runtime path using $DEPS_DIR.
// The path ends up in a .opts file that is read by the profile.d assembly script,