diff --git a/connectors/http-connector/pom.xml b/connectors/http-connector/pom.xml
index 7dc2af2d4..fc5e5273e 100644
--- a/connectors/http-connector/pom.xml
+++ b/connectors/http-connector/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <groupId>com.github.openstack4j.core.connectors</groupId>
         <artifactId>openstack4j-connectors</artifactId>
-        <version>co-3.12.4</version>
+        <version>co-3.12.5</version>
     </parent>
     <name>OpenStack4j HttpURL Connector</name>
     <artifactId>openstack4j-http-connector</artifactId>
diff --git a/connectors/httpclient/pom.xml b/connectors/httpclient/pom.xml
index c620d898d..766031338 100644
--- a/connectors/httpclient/pom.xml
+++ b/connectors/httpclient/pom.xml
@@ -2,7 +2,7 @@
     <parent>
         <groupId>com.github.openstack4j.core.connectors</groupId>
         <artifactId>openstack4j-connectors</artifactId>
-        <version>co-3.12.4</version>
+        <version>co-3.12.5</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>openstack4j-httpclient</artifactId>
diff --git a/connectors/jersey2-jakarta/pom.xml b/connectors/jersey2-jakarta/pom.xml
index 19450cf63..1f2eb5146 100644
--- a/connectors/jersey2-jakarta/pom.xml
+++ b/connectors/jersey2-jakarta/pom.xml
@@ -2,7 +2,7 @@
     <parent>
         <groupId>com.github.openstack4j.core.connectors</groupId>
         <artifactId>openstack4j-connectors</artifactId>
-        <version>co-3.12.4</version>
+        <version>co-3.12.5</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>openstack4j-jersey2-jakarta</artifactId>
diff --git a/connectors/jersey2-jakarta/src/main/java/org/openstack4j/connectors/jersey2/ClientFactory.java b/connectors/jersey2-jakarta/src/main/java/org/openstack4j/connectors/jersey2/ClientFactory.java
index e3e1cf9f1..335adb158 100644
--- a/connectors/jersey2-jakarta/src/main/java/org/openstack4j/connectors/jersey2/ClientFactory.java
+++ b/connectors/jersey2-jakarta/src/main/java/org/openstack4j/connectors/jersey2/ClientFactory.java
@@ -22,6 +22,7 @@
 import org.glassfish.jersey.client.ClientProperties;
 import org.glassfish.jersey.client.HttpUrlConnectorProvider;
 import org.glassfish.jersey.client.HttpUrlConnectorProvider.ConnectionFactory;
+import org.glassfish.jersey.client.JerseyClientBuilder;
 import org.glassfish.jersey.jackson.JacksonFeature;
 import org.openstack4j.api.exceptions.ConnectionException;
 import org.openstack4j.core.transport.ClientConstants;
@@ -66,8 +67,11 @@ private static Client buildClientFromConfig(Config config) {
         if (config.getProxy() != null) {
             addProxy(clientConfig, config);
         }
-
-        ClientBuilder cb = ClientBuilder.newBuilder()
+        // Instantiate Jersey directly instead of ClientBuilder.newBuilder(): the JAX-RS lookup
+        // goes through the thread context classloader, which, when this connector runs inside an
+        // isolated plugin classloader, can resolve another Jersey/Jackson copy that ignores the
+        // Jackson annotations on our model classes (e.g. KeystoneAuth sent without its "auth" root).
+        ClientBuilder cb = new JerseyClientBuilder()
                 .withConfig(clientConfig)
                 .property(ClientProperties.SUPPRESS_HTTP_COMPLIANCE_VALIDATION, "true")
                 .register(JacksonFeature.class)
diff --git a/connectors/jersey2-jakarta/src/main/java/org/openstack4j/connectors/jersey2/HttpExecutorServiceImpl.java b/connectors/jersey2-jakarta/src/main/java/org/openstack4j/connectors/jersey2/HttpExecutorServiceImpl.java
index 328a97eaf..a40b169d4 100644
--- a/connectors/jersey2-jakarta/src/main/java/org/openstack4j/connectors/jersey2/HttpExecutorServiceImpl.java
+++ b/connectors/jersey2-jakarta/src/main/java/org/openstack4j/connectors/jersey2/HttpExecutorServiceImpl.java
@@ -29,12 +29,21 @@ public class HttpExecutorServiceImpl implements HttpExecutorService {
      */
     @Override
     public <R> HttpResponse execute(HttpRequest<R> request) {
+        // Jersey discovers providers and initializes its client runtime lazily, using the thread
+        // context classloader. Pin it to this connector's classloader so that, when loaded from an
+        // isolated (child-first) plugin classloader, Jersey and Jackson resolve from the same copy
+        // as the openstack4j model classes, whatever thread makes the call.
+        Thread thread = Thread.currentThread();
+        ClassLoader previous = thread.getContextClassLoader();
+        thread.setContextClassLoader(HttpExecutorServiceImpl.class.getClassLoader());
         try {
             return invoke(request);
         } catch (ResponseException re) {
             throw re;
         } catch (Exception e) {
             throw new ConnectionException("Error during execution: " + e, 0, e);
+        } finally {
+            thread.setContextClassLoader(previous);
         }
     }
 
diff --git a/connectors/jersey2/pom.xml b/connectors/jersey2/pom.xml
index 24948140a..1b16595f6 100644
--- a/connectors/jersey2/pom.xml
+++ b/connectors/jersey2/pom.xml
@@ -2,7 +2,7 @@
     <parent>
         <groupId>com.github.openstack4j.core.connectors</groupId>
         <artifactId>openstack4j-connectors</artifactId>
-        <version>co-3.12.4</version>
+        <version>co-3.12.5</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>openstack4j-jersey2</artifactId>
diff --git a/connectors/okhttp/pom.xml b/connectors/okhttp/pom.xml
index fc3c11c24..cfbd06493 100644
--- a/connectors/okhttp/pom.xml
+++ b/connectors/okhttp/pom.xml
@@ -2,7 +2,7 @@
     <parent>
         <groupId>com.github.openstack4j.core.connectors</groupId>
         <artifactId>openstack4j-connectors</artifactId>
-        <version>co-3.12.4</version>
+        <version>co-3.12.5</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>openstack4j-okhttp</artifactId>
diff --git a/connectors/pom.xml b/connectors/pom.xml
index a2f2a573c..1572bf118 100644
--- a/connectors/pom.xml
+++ b/connectors/pom.xml
@@ -2,7 +2,7 @@
     <parent>
         <groupId>com.github.openstack4j.core</groupId>
         <artifactId>openstack4j-parent</artifactId>
-        <version>co-3.12.4</version>
+        <version>co-3.12.5</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.github.openstack4j.core.connectors</groupId>
diff --git a/connectors/resteasy/pom.xml b/connectors/resteasy/pom.xml
index 8ccb92439..d22237091 100644
--- a/connectors/resteasy/pom.xml
+++ b/connectors/resteasy/pom.xml
@@ -2,7 +2,7 @@
     <parent>
         <groupId>com.github.openstack4j.core.connectors</groupId>
         <artifactId>openstack4j-connectors</artifactId>
-        <version>co-3.12.4</version>
+        <version>co-3.12.5</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>openstack4j-resteasy</artifactId>
diff --git a/core-integration-test/it-httpclient/pom.xml b/core-integration-test/it-httpclient/pom.xml
index 389428b92..70b6786c6 100644
--- a/core-integration-test/it-httpclient/pom.xml
+++ b/core-integration-test/it-httpclient/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <groupId>com.github.openstack4j.core</groupId>
         <artifactId>openstack4j-core-integration-test</artifactId>
-        <version>co-3.12.4</version>
+        <version>co-3.12.5</version>
     </parent>
     <artifactId>it-httpclient</artifactId>
     <name>OpenStack4j IntegrationTest Apache HttpClient</name>
diff --git a/core-integration-test/it-jersey2-jakarta/pom.xml b/core-integration-test/it-jersey2-jakarta/pom.xml
index 0a500bf16..8a3940836 100644
--- a/core-integration-test/it-jersey2-jakarta/pom.xml
+++ b/core-integration-test/it-jersey2-jakarta/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <groupId>com.github.openstack4j.core</groupId>
         <artifactId>openstack4j-core-integration-test</artifactId>
-        <version>co-3.12.4</version>
+        <version>co-3.12.5</version>
     </parent>
     <artifactId>it-jersey2-jakarta</artifactId>
     <name>OpenStack4j IntegrationTest Jersey2 Jakarta Connector</name>
diff --git a/core-integration-test/it-jersey2/pom.xml b/core-integration-test/it-jersey2/pom.xml
index 730e57f53..3c3b6774e 100644
--- a/core-integration-test/it-jersey2/pom.xml
+++ b/core-integration-test/it-jersey2/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <groupId>com.github.openstack4j.core</groupId>
         <artifactId>openstack4j-core-integration-test</artifactId>
-        <version>co-3.12.4</version>
+        <version>co-3.12.5</version>
     </parent>
     <artifactId>it-jersey2</artifactId>
     <name>OpenStack4j IntegrationTest Jersey2 Connector</name>
diff --git a/core-integration-test/it-okhttp/pom.xml b/core-integration-test/it-okhttp/pom.xml
index ae6f65204..21c99135c 100644
--- a/core-integration-test/it-okhttp/pom.xml
+++ b/core-integration-test/it-okhttp/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <groupId>com.github.openstack4j.core</groupId>
         <artifactId>openstack4j-core-integration-test</artifactId>
-        <version>co-3.12.4</version>
+        <version>co-3.12.5</version>
     </parent>
     <artifactId>it-okhttp</artifactId>
     <name>OpenStack4j IntegrationTest OKHttp Connector</name>
diff --git a/core-integration-test/it-resteasy/pom.xml b/core-integration-test/it-resteasy/pom.xml
index c4f072956..283f02a0e 100644
--- a/core-integration-test/it-resteasy/pom.xml
+++ b/core-integration-test/it-resteasy/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <groupId>com.github.openstack4j.core</groupId>
         <artifactId>openstack4j-core-integration-test</artifactId>
-        <version>co-3.12.4</version>
+        <version>co-3.12.5</version>
     </parent>
     <artifactId>it-resteasy</artifactId>
     <name>OpenStack4j IntegrationTest RestEasy Connector</name>
diff --git a/core-integration-test/pom.xml b/core-integration-test/pom.xml
index d709f6f42..b6dae68f9 100644
--- a/core-integration-test/pom.xml
+++ b/core-integration-test/pom.xml
@@ -2,7 +2,7 @@
     <parent>
         <groupId>com.github.openstack4j.core</groupId>
         <artifactId>openstack4j-parent</artifactId>
-        <version>co-3.12.4</version>
+        <version>co-3.12.5</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>openstack4j-core-integration-test</artifactId>
diff --git a/core-test/pom.xml b/core-test/pom.xml
index 62b8384dc..9d75604f4 100644
--- a/core-test/pom.xml
+++ b/core-test/pom.xml
@@ -2,7 +2,7 @@
     <parent>
         <groupId>com.github.openstack4j.core</groupId>
         <artifactId>openstack4j-parent</artifactId>
-        <version>co-3.12.4</version>
+        <version>co-3.12.5</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>openstack4j-core-test</artifactId>
diff --git a/core/pom.xml b/core/pom.xml
index f2fae0d91..868e9ef0a 100644
--- a/core/pom.xml
+++ b/core/pom.xml
@@ -2,7 +2,7 @@
     <parent>
         <groupId>com.github.openstack4j.core</groupId>
         <artifactId>openstack4j-parent</artifactId>
-        <version>co-3.12.4</version>
+        <version>co-3.12.5</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>openstack4j-core</artifactId>
diff --git a/distribution/pom.xml b/distribution/pom.xml
index f9bb3a922..6802d03e1 100644
--- a/distribution/pom.xml
+++ b/distribution/pom.xml
@@ -2,7 +2,7 @@
     <parent>
         <groupId>com.github.openstack4j.core</groupId>
         <artifactId>openstack4j-parent</artifactId>
-        <version>co-3.12.4</version>
+        <version>co-3.12.5</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>openstack4j</artifactId>
diff --git a/pom.xml b/pom.xml
index e3fe30eed..e6c4d5d06 100644
--- a/pom.xml
+++ b/pom.xml
@@ -2,7 +2,7 @@
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.github.openstack4j.core</groupId>
     <artifactId>openstack4j-parent</artifactId>
-    <version>co-3.12.4</version>
+    <version>co-3.12.5</version>
     <name>OpenStack4j Parent</name>
     <description>OpenStack Java API</description>
     <url>https://github.com/openstack4j/openstack4j/</url>