From 026cb101c1d87bdc47297d34dc09eb420698a747 Mon Sep 17 00:00:00 2001
From: Simon Rettberg
Date: Tue, 16 Jul 2024 11:50:28 +0200
Subject: [qemu] Fix concurrent modification error

---
 .../java/org/openslx/runvirt/virtualization/LibvirtHypervisor.java     | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/core/modules/qemu/runvirt-plugin-qemu/src/main/java/org/openslx/runvirt/virtualization/LibvirtHypervisor.java b/core/modules/qemu/runvirt-plugin-qemu/src/main/java/org/openslx/runvirt/virtualization/LibvirtHypervisor.java
index 757fc706..18cf38e8 100644
--- a/core/modules/qemu/runvirt-plugin-qemu/src/main/java/org/openslx/runvirt/virtualization/LibvirtHypervisor.java
+++ b/core/modules/qemu/runvirt-plugin-qemu/src/main/java/org/openslx/runvirt/virtualization/LibvirtHypervisor.java
@@ -191,8 +191,9 @@ public abstract class LibvirtHypervisor implements Closeable
 	public void close()
 	{
 		// deregister all VMs defined on the hypervisor
-		for ( LibvirtVirtualMachine vm : this.machines ) {
+		for ( LibvirtVirtualMachine vm : new ArrayList<>( this.machines ) ) {
 			try {
+				// This modifies this.machines, so make a copy above
 				this.deregisterVm( vm );
 			} catch ( LibvirtHypervisorException | LibvirtVirtualMachineException e ) {
 				e.printStackTrace();
-- 
cgit v1.2.3-55-g7522