diff --git a/packages/hawtio/src/plugins/shared/jolokia-service.test.ts b/packages/hawtio/src/plugins/shared/jolokia-service.test.ts
index 3d1769b4..79e82e39 100644
--- a/packages/hawtio/src/plugins/shared/jolokia-service.test.ts
+++ b/packages/hawtio/src/plugins/shared/jolokia-service.test.ts
@@ -94,4 +94,23 @@ describe('JolokiaService', () => {
     expect(options.maxDepth).toEqual(3)
     expect(options.maxCollectionSize).toEqual(10000)
   })
+
+  test('problematic JSON response from case hawtio/hawtio#3401', async () => {
+    const response = {
+      value: {
+        'java.util.logging': {
+          'type=Logging': {
+            class: 'sun.management.ManagementFactoryHelper$PlatformLoggingImpl',
+            desc: 'Information on the management interface of the MBean',
+          },
+        },
+        'my-domain-with-vanishing-mbeans': {
+          'type=Bean1': {
+            error: 'javax.management.InstanceNotFoundException: Bean1',
+          },
+        },
+      },
+    }
+    jolokiaService.unwindListResponse(response.value)
+  })
 })
diff --git a/packages/hawtio/src/plugins/shared/jolokia-service.ts b/packages/hawtio/src/plugins/shared/jolokia-service.ts
index 6f9fcdfd..d5c66485 100644
--- a/packages/hawtio/src/plugins/shared/jolokia-service.ts
+++ b/packages/hawtio/src/plugins/shared/jolokia-service.ts
@@ -543,7 +543,7 @@ class JolokiaService implements IJolokiaService {
    * @param response response value from Jolokia LIST
    * @param path optional path information to restore the response to {@link OptimisedJmxDomains}
    */
-  private unwindListResponse(response: unknown, path?: string[]): OptimisedJmxDomains {
+  unwindListResponse(response: unknown, path?: string[]): OptimisedJmxDomains {
     if (isOptimisedListResponse(response)) {
       // Post process cached MBean info
       const { cache, domains } = response
diff --git a/packages/hawtio/src/plugins/shared/tree/node.ts b/packages/hawtio/src/plugins/shared/tree/node.ts
index 98d3040d..683ddd97 100644
--- a/packages/hawtio/src/plugins/shared/tree/node.ts
+++ b/packages/hawtio/src/plugins/shared/tree/node.ts
@@ -23,8 +23,12 @@ export function isJmxDomains(value: unknown): value is OptimisedJmxDomains {
 
 export type OptimisedJmxDomain = Record<string, OptimisedMBeanInfo>
 
+function isMBeanInfoOrError(value: unknown): boolean {
+  return isMBeanInfo(value) || isMBeanInfoError(value)
+}
+
 export function isJmxDomain(value: unknown): value is OptimisedJmxDomain {
-  return is(value, record(string(), define('MBeanInfo', isMBeanInfo)))
+  return is(value, record(string(), define('MBeanInfo', isMBeanInfoOrError)))
 }
 
 export interface OptimisedMBeanInfo extends Omit<MBeanInfo, 'attr' | 'op'> {
@@ -47,6 +51,14 @@ export function isMBeanInfo(value: unknown): value is OptimisedMBeanInfo {
   )
 }
 
+export interface ErrorMBeanInfo {
+  error: string
+}
+
+export function isMBeanInfoError(value: unknown): value is ErrorMBeanInfo {
+  return is(value, type({ error: string() }))
+}
+
 export interface OptimisedMBeanAttribute extends MBeanAttribute {
   canInvoke?: boolean
 }