.

src/main/java/com/tbyf/license/LicenseManager.java

 package com.tbyf.license;
 
+import com.tbyf.license.autoconfigure.LicenseProperties;
 import global.namespace.fun.io.bios.BIOS;
 import global.namespace.truelicense.api.ConsumerLicenseManager;
 import global.namespace.truelicense.api.License;
@@ -15,6 +16,9 @@ import org.springframework.beans.factory.annotation.Autowired;
 import java.nio.file.Files;
 import java.nio.file.Path;
 import java.nio.file.Paths;
+import java.util.Arrays;
+import java.util.Set;
+import java.util.stream.Collectors;
 
 
 public class LicenseManager implements InitializingBean {
@@ -34,7 +38,13 @@ public class LicenseManager implements InitializingBean {
     LicenseProperties licenseProperties;
 
     private static void verifyMAC(Object MAC) throws LicenseValidationException {
-        if (MAC == null || !NetUtil.containsMAC(MAC.toString())) {
+        if (MAC == null ) {
+            throw new LicenseValidationException(Messages.message("Invalid License"));
+        }
+        Set<String> MACs = Arrays.stream(MAC.toString().split(","))
+                .map(String::trim)
+                .collect(Collectors.toSet());
+        if (!NetUtil.containsAnyMAC(MACs)) {
             throw new LicenseValidationException(Messages.message("Invalid License"));
         }
     }
@@ -71,9 +81,13 @@ public class LicenseManager implements InitializingBean {
         manager().install(BIOS.file(licensePath));
     }
 
-    public void uninstall() throws Exception {
+    public void uninstall() {
+        try {
             manager().uninstall();
         }
+        catch (Exception ignored) {
+        }
+    }
 
     public LicenseValidPeriod getLicenseValidPeriod() throws LicenseManagementException {
         License license = manager().load();
@@ -89,6 +103,7 @@ public class LicenseManager implements InitializingBean {
         Files.createDirectories(dir);
         Path licensePath = dir.resolve(Constants.LICENSE_FILE_NAME);
         if (Files.isRegularFile(licensePath) && Files.exists(licensePath)) {
+            uninstall();
             install(licensePath.toString());
         }
     }

src/main/java/com/tbyf/license/NetUtil.java

@@ -15,6 +15,10 @@ public class NetUtil {
         return getAllMACs().contains(MAC.toUpperCase());
     }
 
+    public static boolean containsAnyMAC(Set<String> MACs) {
+        return getAllMACs().stream().anyMatch(MACs::contains);
+    }
+
     private static Set<String> getAllMACs() {
         Set<String> allMACs = cache;
         if (allMACs != null && !allMACs.isEmpty()) {

src/main/java/com/tbyf/license/LicenseAutoConfiguration.java → src/main/java/com/tbyf/license/autoconfigure/LicenseAutoConfiguration.java

-package com.tbyf.license;
+package com.tbyf.license.autoconfigure;
 
+import com.tbyf.license.LicenseManager;
 import org.springframework.boot.autoconfigure.AutoConfiguration;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnWebApplication;
 import org.springframework.boot.autoconfigure.web.servlet.DispatcherServletAutoConfiguration;
@@ -14,6 +15,7 @@ import javax.servlet.MultipartConfigElement;
 @EnableConfigurationProperties(LicenseProperties.class)
 @ConditionalOnWebApplication(type = ConditionalOnWebApplication.Type.SERVLET)
 @AutoConfiguration(after = {DispatcherServletAutoConfiguration.class})
+// @ConditionalOnProperty(prefix = "license", name = "enabled", havingValue = "true")
 public class LicenseAutoConfiguration {
 
     @Bean

src/main/java/com/tbyf/license/LicenseInstallationServlet.java → src/main/java/com/tbyf/license/autoconfigure/LicenseInstallationServlet.java

-package com.tbyf.license;
+package com.tbyf.license.autoconfigure;
 
+import com.tbyf.license.Constants;
+import com.tbyf.license.LicenseManager;
 import lombok.Setter;
 import org.springframework.http.HttpStatus;
 
@@ -31,6 +33,8 @@ public class LicenseInstallationServlet extends HttpServlet {
         try (InputStream is = filePart.getInputStream()) {
             Path dest = Paths.get(properties.getLocation(), Constants.LICENSE_FILE_NAME).toAbsolutePath().normalize();
             Files.copy(is, dest, StandardCopyOption.REPLACE_EXISTING);
+
+            this.licenseManager.uninstall();
             this.licenseManager.install(dest.toString());
             resp.setStatus(HttpStatus.OK.value());
             resp.setContentType(Constants.TEXT_PLAIN_MEDIA_TYPE);
@@ -43,5 +47,4 @@ public class LicenseInstallationServlet extends HttpServlet {
         }
     }
 
-
 }

src/main/java/com/tbyf/license/LicenseProperties.java → src/main/java/com/tbyf/license/autoconfigure/LicenseProperties.java

-package com.tbyf.license;
+package com.tbyf.license.autoconfigure;
 
 import lombok.Data;
 import org.springframework.boot.context.properties.ConfigurationProperties;

src/main/java/com/tbyf/license/LicenseValidationFilter.java → src/main/java/com/tbyf/license/autoconfigure/LicenseValidationFilter.java

-package com.tbyf.license;
+package com.tbyf.license.autoconfigure;
 
+import com.tbyf.license.LicenseManager;
 import global.namespace.fun.io.api.NoContentException;
 import global.namespace.truelicense.api.LicenseManagementException;
 import global.namespace.truelicense.api.LicenseValidationException;

src/main/resources/META-INF/spring.factories

 org.springframework.boot.autoconfigure.EnableAutoConfiguration=\
-com.tbyf.license.LicenseAutoConfiguration
+com.tbyf.license.autoconfigure.LicenseAutoConfiguration
\ No newline at end of file