diff --git a/arquillian/appclient/src/main/java/tck/arquillian/protocol/appclient/AppClientArchiveName.java b/arquillian/appclient/src/main/java/tck/arquillian/protocol/appclient/AppClientArchiveName.java
new file mode 100644
index 000000000..2f6d4ddaa
--- /dev/null
+++ b/arquillian/appclient/src/main/java/tck/arquillian/protocol/appclient/AppClientArchiveName.java
@@ -0,0 +1,4 @@
+package tck.arquillian.protocol.appclient;
+
+public record AppClientArchiveName(String name) {
+}
diff --git a/arquillian/appclient/src/main/java/tck/arquillian/protocol/appclient/AppClientCmd.java b/arquillian/appclient/src/main/java/tck/arquillian/protocol/appclient/AppClientCmd.java
index 6528a195d..dd6fd8368 100644
--- a/arquillian/appclient/src/main/java/tck/arquillian/protocol/appclient/AppClientCmd.java
+++ b/arquillian/appclient/src/main/java/tck/arquillian/protocol/appclient/AppClientCmd.java
@@ -104,11 +104,13 @@ public synchronized void quit() throws Exception {
     /**
      * Starts the app client in a new process and creates two threads to read the process output
      * and error streams.
+     * @param vehicleArchiveName - the name of the vehicle archive to pass to the app client
+     * @param clientAppArchive - the appclient archive
      * @param additionalArgs - additional arguments passed to the app client process. The CTS appclient will
      *                       pass in the name of the test to run using this.
      * @throws Exception - on failure
      */
-    public void run(String vehicleArchiveName, String... additionalArgs) throws Exception {
+    public void run(String vehicleArchiveName, String clientAppArchive, String... additionalArgs) throws Exception {
         // Need to replace any property refs on command line
         File earDir = new File(clientEarDir);
         if(earDir.isAbsolute()) {
@@ -125,6 +127,11 @@ public void run(String vehicleArchiveName, String... additionalArgs) throws Exce
                 arg = arg.replaceAll("\\$\\{vehicleArchiveName}", vehicleArchiveName);
                 cmdLine[n] = arg;
             }
+            if(arg.contains("${clientAppArchive}")) {
+                arg = arg.replaceAll("\\$\\{clientAppArchive}", clientAppArchive);
+                cmdLine[n] = arg;
+            }
+
         }
         if (additionalArgs != null) {
             String[] newCmdLine = new String[cmdLine.length + additionalArgs.length];
@@ -196,6 +203,7 @@ private synchronized void outputLineReceived(String line) {
 
     private synchronized void errorLineReceived(String line) {
         LOGGER.info("[" + errThreadHame + "] " + line);
+        outputQueue.add(line);
     }
 
     private static String formatException(String msg, Throwable e) {
diff --git a/arquillian/appclient/src/main/java/tck/arquillian/protocol/appclient/AppClientDeploymentPackager.java b/arquillian/appclient/src/main/java/tck/arquillian/protocol/appclient/AppClientDeploymentPackager.java
index f2a1994bc..c90a60147 100644
--- a/arquillian/appclient/src/main/java/tck/arquillian/protocol/appclient/AppClientDeploymentPackager.java
+++ b/arquillian/appclient/src/main/java/tck/arquillian/protocol/appclient/AppClientDeploymentPackager.java
@@ -1,26 +1,49 @@
+/*
+ * Copyright 2024 Red Hat, Inc., and individual contributors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ */
 package tck.arquillian.protocol.appclient;
 
 import org.jboss.arquillian.container.test.spi.TestDeployment;
 import org.jboss.arquillian.container.test.spi.client.deployment.DeploymentPackager;
 import org.jboss.arquillian.container.test.spi.client.deployment.ProtocolArchiveProcessor;
+import org.jboss.arquillian.core.api.InstanceProducer;
+import org.jboss.arquillian.core.api.annotation.ApplicationScoped;
+import org.jboss.arquillian.core.api.annotation.Inject;
 import org.jboss.shrinkwrap.api.Archive;
 import org.jboss.shrinkwrap.api.ArchivePath;
 import org.jboss.shrinkwrap.api.Node;
 import org.jboss.shrinkwrap.api.asset.ArchiveAsset;
 import org.jboss.shrinkwrap.api.asset.Asset;
+import org.jboss.shrinkwrap.api.asset.FileAsset;
 import org.jboss.shrinkwrap.api.asset.StringAsset;
 import org.jboss.shrinkwrap.api.exporter.ZipExporter;
 import org.jboss.shrinkwrap.api.spec.EnterpriseArchive;
 import tck.arquillian.protocol.common.ProtocolJarResolver;
 
 import java.io.File;
+import java.nio.file.Files;
+import java.nio.file.StandardCopyOption;
 import java.util.Collection;
 import java.util.Map;
 import java.util.logging.Logger;
 
+/**
+ *
+ */
 public class AppClientDeploymentPackager implements DeploymentPackager {
     static Logger log = Logger.getLogger(AppClientDeploymentPackager.class.getName());
 
+    @Inject
+    @ApplicationScoped
+    private InstanceProducer<AppClientArchiveName> appClientArchiveName;
+
     @Override
     public Archive<?> generateDeployment(TestDeployment testDeployment, Collection<ProtocolArchiveProcessor> processors) {
         Archive<?> archive = testDeployment.getApplicationArchive();
@@ -34,13 +57,13 @@ public Archive<?> generateDeployment(TestDeployment testDeployment, Collection<P
             throw new RuntimeException("Failed to resolve protocol.jar. You either need a jakarta.tck.arquillian:arquillian-protocol-lib"+
                     " dependency in the runner pom.xml or a downloaded target/protocol/protocol.jar file");
         }
-        ear.addAsLibrary(protocolJar);
+        ear.addAsLibrary(protocolJar, "arquillian-protocol-lib.jar");
 
+        AppClientProtocolConfiguration config = (AppClientProtocolConfiguration) testDeployment.getProtocolConfiguration();
         String mainClass = extractAppMainClient(ear);
         log.info("mainClass: " + mainClass);
 
         // Write out the ear with the test dependencies for use by the appclient launcher
-        AppClientProtocolConfiguration config = (AppClientProtocolConfiguration) testDeployment.getProtocolConfiguration();
         String extractDir = config.getClientEarDir();
         if(extractDir == null) {
             extractDir = "target/appclient";
@@ -58,10 +81,37 @@ public Archive<?> generateDeployment(TestDeployment testDeployment, Collection<P
         exporter.exportTo(archiveOnDisk, true);
         log.info("Exported test ear to: " + archiveOnDisk.getAbsolutePath());
 
+        if(config.isUnpackClientEar()) {
+            for (ArchivePath path : ear.getContent().keySet()) {
+                Node node = ear.get(path);
+                if (node.getAsset() instanceof ArchiveAsset) {
+                    ArchiveAsset asset = (ArchiveAsset) node.getAsset();
+                    File archiveFile = new File(appclient, path.get());
+                    if(!archiveFile.getParentFile().exists()) {
+                        archiveFile.getParentFile().mkdirs();
+                    }
+                    final ZipExporter zipExporter = asset.getArchive().as(ZipExporter.class);
+                    zipExporter.exportTo(archiveFile, true);
+                    log.info("Exported test ear content to: " + archiveFile.getAbsolutePath());
+                } else if(node.getAsset() instanceof FileAsset) {
+                    FileAsset asset = (FileAsset) node.getAsset();
+                    File file = new File(appclient, path.get());
+                    if(!file.getParentFile().exists()) {
+                        file.getParentFile().mkdirs();
+                    }
+                    try {
+                        Files.copy(asset.openStream(), file.toPath(), StandardCopyOption.REPLACE_EXISTING);
+                        log.info("Exported test ear content to: " + file.getAbsolutePath());
+                    } catch (Exception e) {
+                        throw new RuntimeException("Failed to export test ear content to: " + file.getAbsolutePath(), e);
+                    }
+                }
+            }
+        }
         return ear;
     }
 
-    private static String extractAppMainClient(EnterpriseArchive ear) {
+    private String extractAppMainClient(EnterpriseArchive ear) {
         String mainClass = null;
         Map<ArchivePath, Node> contents = ear.getContent();
         for (Node node : contents.values()) {
@@ -78,6 +128,7 @@ private static String extractAppMainClient(EnterpriseArchive ear) {
                 for (String line : lines) {
                     if (line.startsWith("Main-Class:")) {
                         mainClass = line.substring(11).trim();
+                        appClientArchiveName.set(new AppClientArchiveName(jar.getArchive().getName()));
                         break;
                     }
                 }
diff --git a/arquillian/appclient/src/main/java/tck/arquillian/protocol/appclient/AppClientMethodExecutor.java b/arquillian/appclient/src/main/java/tck/arquillian/protocol/appclient/AppClientMethodExecutor.java
index a6c30a62b..ec9c0d92b 100644
--- a/arquillian/appclient/src/main/java/tck/arquillian/protocol/appclient/AppClientMethodExecutor.java
+++ b/arquillian/appclient/src/main/java/tck/arquillian/protocol/appclient/AppClientMethodExecutor.java
@@ -1,9 +1,20 @@
+/*
+ * Copyright 2024 Red Hat, Inc., and individual contributors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ */
 package tck.arquillian.protocol.appclient;
 
 import org.jboss.arquillian.container.spi.client.deployment.Deployment;
 import org.jboss.arquillian.container.spi.context.annotation.DeploymentScoped;
 import org.jboss.arquillian.container.test.spi.ContainerMethodExecutor;
 import org.jboss.arquillian.core.api.Instance;
+import org.jboss.arquillian.core.api.InstanceProducer;
 import org.jboss.arquillian.core.api.annotation.Inject;
 import org.jboss.arquillian.test.spi.TestMethodExecutor;
 import org.jboss.arquillian.test.spi.TestResult;
@@ -19,6 +30,9 @@ public class AppClientMethodExecutor implements ContainerMethodExecutor {
     @Inject
     @DeploymentScoped
     private Instance<Deployment> deploymentInstance;
+    @Inject
+    @DeploymentScoped
+    private Instance<AppClientArchiveName> appClientArchiveName;
 
     static enum MainStatus {
         PASSED,
@@ -54,9 +68,10 @@ public TestResult invoke(TestMethodExecutor testMethodExecutor) {
             log.info("Running appClient for: " + testMethod);
             try {
                 Deployment deployment = deploymentInstance.get();
+                String appArchiveName = appClientArchiveName.get().name();
                 String vehicleArchiveName = TsTestPropsBuilder.vehicleArchiveName(deployment);
                 String[] additionalAgrs = TsTestPropsBuilder.runArgs(config, deployment, testMethodExecutor);
-                appClient.run(vehicleArchiveName, additionalAgrs);
+                appClient.run(vehicleArchiveName, appArchiveName, additionalAgrs);
             } catch (Exception ex) {
                 result = TestResult.failed(ex);
                 return result;
diff --git a/arquillian/appclient/src/main/java/tck/arquillian/protocol/appclient/AppClientProtocol.java b/arquillian/appclient/src/main/java/tck/arquillian/protocol/appclient/AppClientProtocol.java
index 771d47939..8138dccdc 100644
--- a/arquillian/appclient/src/main/java/tck/arquillian/protocol/appclient/AppClientProtocol.java
+++ b/arquillian/appclient/src/main/java/tck/arquillian/protocol/appclient/AppClientProtocol.java
@@ -1,3 +1,13 @@
+/*
+ * Copyright 2024 Red Hat, Inc., and individual contributors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ */
 package tck.arquillian.protocol.appclient;
 
 import org.jboss.arquillian.container.spi.client.protocol.ProtocolDescription;
@@ -26,13 +36,18 @@ public ProtocolDescription getDescription() {
 
     @Override
     public DeploymentPackager getPackager() {
-        return new AppClientDeploymentPackager();
+        AppClientDeploymentPackager packager = new AppClientDeploymentPackager();
+        Injector injector = injectorInstance.get();
+        injector.inject(packager);
+
+        return packager;
     }
 
     @Override
     public ContainerMethodExecutor getExecutor(AppClientProtocolConfiguration protocolConfiguration, ProtocolMetaData metaData,
             CommandCallback callback) {
 
+        // Create the AppClientCmd and AppClientMethodExecutor instances and have arquillian inject the Deployment into the executor
         AppClientCmd clientCmd = new AppClientCmd(protocolConfiguration);
         AppClientMethodExecutor executor = new AppClientMethodExecutor(clientCmd, protocolConfiguration);
         Injector injector = injectorInstance.get();
diff --git a/arquillian/appclient/src/main/java/tck/arquillian/protocol/appclient/AppClientProtocolConfiguration.java b/arquillian/appclient/src/main/java/tck/arquillian/protocol/appclient/AppClientProtocolConfiguration.java
index 467ea8107..e101026ab 100644
--- a/arquillian/appclient/src/main/java/tck/arquillian/protocol/appclient/AppClientProtocolConfiguration.java
+++ b/arquillian/appclient/src/main/java/tck/arquillian/protocol/appclient/AppClientProtocolConfiguration.java
@@ -8,6 +8,10 @@
 import java.io.IOException;
 import java.util.ArrayList;
 
+/**
+ * Configuration for the AppClient protocol. This is used to configure the appclient process that will be launched to
+ * run the appclient main class for the test.
+ */
 public class AppClientProtocolConfiguration implements ProtocolConfiguration, ProtocolCommonConfig {
     private boolean runClient = true;
     /**
@@ -20,9 +24,14 @@ public class AppClientProtocolConfiguration implements ProtocolConfiguration, Pr
      */
     private String clientEnvString;
     /**
-     * A comma separated string for the command line arguments to pass as the cmdarray to {@link Runtime#exec(String[], String[])}
+     * A ';' (by default) separated string for the command line arguments to pass as the cmdarray to
+     * {@link Runtime#exec(String[], String[])}
      */
     private String clientCmdLineString;
+    /**
+     * The separator to use for splitting the clientCmdLineString
+     */
+    private String cmdLineArgSeparator = ";";
     /**
      * An optional directory string to use as the appclient process directory. This is passed as the dir arguemnt
      * to {@link Runtime#exec(String[], String[], File)}
@@ -42,6 +51,7 @@ public class AppClientProtocolConfiguration implements ProtocolConfiguration, Pr
     private String tsSqlStmtFile;
     // harness.log.traceflag
     private boolean trace;
+    private boolean unpackClientEar = false;
 
     public boolean isAppClient() {
         return true;
@@ -101,10 +111,31 @@ public String getClientCmdLineString() {
         return clientCmdLineString;
     }
 
+    /**
+     * Set the command line to use for launching the appclient. The individual arguments are separated by the cmdLineArgSeparator
+     * setting, which defaults to ';'. A long command line can be split across multiple lines in the arquillian.xml file because
+     * the parsed command line array elements are trimmed of leading and trailing whitespace.
+     * The command line should be filtered against the ts.jte file if it contains any property references. In addition
+     * to ts.jte property references, the command line can contain ${clientEarDir} which will be replaced with the
+     * #clientEarDir value. Any ${vehicleArchiveName} ref will be replaced with the vehicleArchiveName passed to the
+     * @param clientCmdLineString
+     */
     public void setClientCmdLineString(String clientCmdLineString) {
         this.clientCmdLineString = clientCmdLineString;
     }
 
+    public String getCmdLineArgSeparator() {
+        return cmdLineArgSeparator;
+    }
+
+    /**
+     * Set the separator to use for splitting the clientCmdLineString
+     * @param cmdLineArgSeparator
+     */
+    public void setCmdLineArgSeparator(String cmdLineArgSeparator) {
+        this.cmdLineArgSeparator = cmdLineArgSeparator;
+    }
+
     public String getClientDir() {
         return clientDir;
     }
@@ -119,15 +150,36 @@ public void setClientEarDir(String clientEarDir) {
         this.clientEarDir = clientEarDir;
     }
 
+    public boolean isUnpackClientEar() {
+        return unpackClientEar;
+    }
+
+    /**
+     * Set to true to unpack the client ear into the clientEarDir. The default is false. This is useful if the
+     * vendor appclient requires the ear to be exploded in order to access the appclient jar and bundled ear
+     * lib jars.
+     * @param unpackClientEar
+     */
+    public void setUnpackClientEar(boolean unpackClientEar) {
+        this.unpackClientEar = unpackClientEar;
+    }
+
     public long getClientTimeout() {
         return clientTimeout;
     }
 
+    /**
+     * Set the timeout in milliseconds for waiting for the appclient process to exit. The default is 60000 (1 minute).
+     * @param clientTimeout
+     */
     public void setClientTimeout(long clientTimeout) {
         this.clientTimeout = clientTimeout;
     }
 
-    // Helper methods to turn the strings into the types used by Runtime#exec
+
+    /** Helper methods to turn the strings into the types used by Runtime#exec
+     * @return a File object for the clientDir
+     */
     public File clientDirAsFile() {
         File dir = null;
         if (clientDir != null) {
@@ -136,8 +188,18 @@ public File clientDirAsFile() {
         return dir;
     }
 
+    /**
+     * Parse the clientCmdLineString into an array of strings using the cmdLineArgSeparator. This calls String#split on the
+     * clientCmdLineString and then trims each element of the resulting array.
+     * @return a command line array of strings for use with Runtime#exec.
+     */
     public String[] clientCmdLineAsArray() {
-        return clientCmdLineString.trim().split(";");
+        String[] cmdArray = clientCmdLineString.trim().split(cmdLineArgSeparator);
+        // Now trim each element
+        for (int i = 0; i < cmdArray.length; i++) {
+            cmdArray[i] = cmdArray[i].trim();
+        }
+        return cmdArray;
     }
     public String[] clientEnvAsArray() {
         String[] envp = null;
@@ -145,6 +207,11 @@ public String[] clientEnvAsArray() {
             ArrayList<String> tmp = new ArrayList<String>();
             // Split on the env1=value1 ; separator
             envp = clientEnvString.trim().split(";");
+            // Now trim each element
+            for (int i = 0; i < envp.length; i++) {
+                envp[i] = envp[i].trim();
+            }
+
         }
         return envp;
     }
diff --git a/arquillian/appclient/src/main/java/tck/arquillian/protocol/appclient/AppClientProtocolExtension.java b/arquillian/appclient/src/main/java/tck/arquillian/protocol/appclient/AppClientProtocolExtension.java
index 76da241c7..4950f4522 100644
--- a/arquillian/appclient/src/main/java/tck/arquillian/protocol/appclient/AppClientProtocolExtension.java
+++ b/arquillian/appclient/src/main/java/tck/arquillian/protocol/appclient/AppClientProtocolExtension.java
@@ -1,8 +1,21 @@
+/*
+ * Copyright 2024 Red Hat, Inc., and individual contributors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ */
 package tck.arquillian.protocol.appclient;
 
 import org.jboss.arquillian.container.test.spi.client.protocol.Protocol;
 import org.jboss.arquillian.core.spi.LoadableExtension;
 
+/**
+ * Arquillian extension for the AppClient protocol.
+ */
 public class AppClientProtocolExtension implements LoadableExtension {
 
     @Override
diff --git a/arquillian/common/src/main/java/tck/arquillian/protocol/common/TsTestPropsBuilder.java b/arquillian/common/src/main/java/tck/arquillian/protocol/common/TsTestPropsBuilder.java
index 530e48875..df27e9c5d 100644
--- a/arquillian/common/src/main/java/tck/arquillian/protocol/common/TsTestPropsBuilder.java
+++ b/arquillian/common/src/main/java/tck/arquillian/protocol/common/TsTestPropsBuilder.java
@@ -203,7 +203,7 @@ public static String[] runArgs(ProtocolCommonConfig config, Deployment deploymen
                 // test props are needed by EETest.run
                 "-p", testProps.toFile().getAbsolutePath(),
                 "-ap", tssqlStmt != null ? tssqlStmt.toFile().getAbsolutePath() : "/dev/null",
-                "classname", testMethodExecutor.getMethod().getDeclaringClass().getName(),
+                "-classname", testMethodExecutor.getMethod().getDeclaringClass().getName(),
                 "-t", testMethodName,
                 "-vehicle", vehicle,
         };