update comments

src/main/java/com/google/jenkins/plugins/computeengine/InstanceConfiguration.java

@@ -822,7 +822,7 @@ public FormValidation doCheckMachineType(@QueryParameter String value) {
         }
 
         public FormValidation doCheckMaxRunDurationSeconds(
-                @QueryParameter String value, @QueryParameter(value="provisioningType") String provisioningTypeIdx) {
+                @QueryParameter String value, @QueryParameter(value = "provisioningType") String provisioningTypeIdx) {
             try {
                 long maxRunDurationSeconds = Long.parseLong(value);
                 if (maxRunDurationSeconds < 0) {
@@ -834,7 +834,8 @@ public FormValidation doCheckMaxRunDurationSeconds(
                             .get(Integer.parseInt(provisioningTypeIdx))
                             .getProvisioningTypeValue();
                     if (provisioningTypeValue == PREEMPTIBLE) {
-                        return FormValidation.warning("Max run duration is not supported for preemptible VMs and will be ignored.");
+                        return FormValidation.warning(
+                                "Max run duration is not supported for preemptible VMs and will be ignored.");
                     }
                 }
 

src/main/java/com/google/jenkins/plugins/computeengine/ui/helpers/PreemptibleVm.java

@@ -1,8 +1,23 @@
+/*
+ * Copyright 2024 CloudBees, Inc.
+ *
+ * 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
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package com.google.jenkins.plugins.computeengine.ui.helpers;
 
 import hudson.Extension;
 import org.kohsuke.stapler.DataBoundConstructor;
-import org.kohsuke.stapler.DataBoundSetter;
 
 @SuppressWarnings("unused")
 public class PreemptibleVm extends ProvisioningType {

src/main/java/com/google/jenkins/plugins/computeengine/ui/helpers/ProvisioningType.java

@@ -1,9 +1,24 @@
-package com.google.jenkins.plugins.computeengine.ui.helpers;
+/*
+ * Copyright 2024 CloudBees, Inc.
+ *
+ * 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
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 
-import org.kohsuke.stapler.DataBoundSetter;
+package com.google.jenkins.plugins.computeengine.ui.helpers;
 
 import hudson.model.AbstractDescribableImpl;
 import hudson.model.Descriptor;
+import org.kohsuke.stapler.DataBoundSetter;
 
 /**
  * ProvisioningType represents the type of VM to be provisioned.

src/main/java/com/google/jenkins/plugins/computeengine/ui/helpers/ProvisioningTypeValue.java

@@ -1,3 +1,19 @@
+/*
+ * Copyright 2024 CloudBees, Inc.
+ *
+ * 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
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package com.google.jenkins.plugins.computeengine.ui.helpers;
 
 public enum ProvisioningTypeValue {

src/main/java/com/google/jenkins/plugins/computeengine/ui/helpers/SpotVm.java

@@ -1,8 +1,23 @@
+/*
+ * Copyright 2024 CloudBees, Inc.
+ *
+ * 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
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package com.google.jenkins.plugins.computeengine.ui.helpers;
 
 import hudson.Extension;
 import org.kohsuke.stapler.DataBoundConstructor;
-import org.kohsuke.stapler.DataBoundSetter;
 
 @SuppressWarnings("unused")
 public class SpotVm extends ProvisioningType {

src/main/java/com/google/jenkins/plugins/computeengine/ui/helpers/Standard.java

@@ -1,8 +1,23 @@
+/*
+ * Copyright 2024 CloudBees, Inc.
+ *
+ * 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
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package com.google.jenkins.plugins.computeengine.ui.helpers;
 
 import hudson.Extension;
 import org.kohsuke.stapler.DataBoundConstructor;
-import org.kohsuke.stapler.DataBoundSetter;
 
 @SuppressWarnings("unused")
 public class Standard extends ProvisioningType {