Replace <code>…</code> with {@code …}

core/src/main/java/hudson/ExtensionFinder.java

@@ -600,7 +600,7 @@ public abstract class ExtensionFinder implements ExtensionPoint {
     /**
      * Returns initial {@link Method} as well as all matching ones found in interfaces.
      * This allows to introspect metadata for a method which is both declared in parent class and in implemented
-     * interface(s). <code>interfaces</code> typically is obtained by {@link ClassUtils#getAllInterfacesAsSet}
+     * interface(s). {@code interfaces} typically is obtained by {@link ClassUtils#getAllInterfacesAsSet}
      */
     Collection<Method> getMethodAndInterfaceDeclarations(Method method, Collection<Class> interfaces) {
         final List<Method> methods = new ArrayList<>();

core/src/main/java/hudson/FilePath.java

@@ -1718,7 +1718,7 @@ public final class FilePath implements SerializableOnlyOverRemoting {
      *      if the parameter is -1, this method becomes no-op.
      *      <p>
      *      please note mask is expected to be an octal if you use <a href="http://en.wikipedia.org/wiki/Chmod">chmod command line values</a>,
-     *      so preceded by a '0' in java notation, ie <code>chmod(0644)</code>
+     *      so preceded by a '0' in java notation, ie {@code chmod(0644)}
      *      <p>
      *      Only supports setting read, write, or execute permissions for the
      *      owner, group, or others, so the largest permissible value is 0777.

core/src/main/java/hudson/Launcher.java

@@ -769,8 +769,8 @@ public abstract class Launcher {
      * recorded on the listener.
      *
      * @param cmd     The commands
-     * @param mask    An array of booleans which control whether a cmd element should be masked (<code>true</code>) or
-     *                remain unmasked (<code>false</code>).
+     * @param mask    An array of booleans which control whether a cmd element should be masked ({@code true}) or
+     *                remain unmasked ({@code false}).
      * @param workDir The work dir.
      */
     protected final void maskedPrintCommandLine(@Nonnull List<String> cmd, @CheckForNull boolean[] mask, @CheckForNull FilePath workDir) {

core/src/main/java/hudson/PluginManager.java

@@ -159,7 +159,7 @@ import static java.util.logging.Level.*;
  *
  * <p>
  * <b>Setting default Plugin Managers</b>. The default plugin manager in {@code Jenkins} can be replaced by defining a
- * System Property (<code>hudson.PluginManager.className</code>). See {@link #createDefault(Jenkins)}.
+ * System Property ({@code hudson.PluginManager.className}). See {@link #createDefault(Jenkins)}.
  * This className should be available on early startup, so it cannot come only from a library
  * (e.g. Jenkins module or Extra library dependency in the WAR file project).
  * Plugins cannot be used for such purpose.

core/src/main/java/hudson/PluginWrapper.java

@@ -595,7 +595,7 @@ public class PluginWrapper implements Comparable<PluginWrapper>, ModelObject {
 
     /**
      * Returns the minimum Java version of this plugin, as specified in the plugin metadata.
-     * Generally coming from the <code>java.level</code> extracted as MANIFEST's metadata with
+     * Generally coming from the {@code java.level} extracted as MANIFEST's metadata with
      * <a href="https://github.com/jenkinsci/plugin-pom/pull/134">this addition on the plugins' parent pom</a>.
      *
      * @see <a href="https://github.com/jenkinsci/maven-hpi-plugin/pull/75">maven-hpi-plugin#PR-75</a>.

core/src/main/java/hudson/TcpSlaveAgentListener.java

@@ -455,7 +455,7 @@ public final class TcpSlaveAgentListener extends Thread {
     }
 
     /**
-     * Reschedules the <code>TcpSlaveAgentListener</code> on demand.  Disables itself after running.
+     * Reschedules the {@code TcpSlaveAgentListener} on demand.  Disables itself after running.
      */
     @Extension
     @Restricted(NoExternalUse.class)

core/src/main/java/hudson/Util.java

@@ -185,11 +185,11 @@ public class Util {
     }
 
     /**
-     * Reads the entire contents of the text file at <code>logfile</code> into a
+     * Reads the entire contents of the text file at {@code logfile} into a
      * string using the {@link Charset#defaultCharset() default charset} for
      * decoding. If no such file exists, an empty string is returned.
      * @param logfile The text file to read in its entirety.
-     * @return The entire text content of <code>logfile</code>.
+     * @return The entire text content of {@code logfile}.
      * @throws IOException If an error occurs while reading the file.
      * @deprecated call {@link #loadFile(java.io.File, java.nio.charset.Charset)}
      * instead to specify the charset to use for decoding (preferably
@@ -202,12 +202,12 @@ public class Util {
     }
 
     /**
-     * Reads the entire contents of the text file at <code>logfile</code> into a
-     * string using <code>charset</code> for decoding. If no such file exists,
+     * Reads the entire contents of the text file at {@code logfile} into a
+     * string using {@code charset} for decoding. If no such file exists,
      * an empty string is returned.
      * @param logfile The text file to read in its entirety.
-     * @param charset The charset to use for decoding the bytes in <code>logfile</code>.
-     * @return The entire text content of <code>logfile</code>.
+     * @param charset The charset to use for decoding the bytes in {@code logfile}.
+     * @return The entire text content of {@code logfile}.
      * @throws IOException If an error occurs while reading the file.
      */
     @Nonnull
@@ -992,7 +992,7 @@ public class Util {
     /**
      * Creates an empty file if nonexistent or truncates the existing file.
      * Note: The behavior of this method in the case where the file already
-     * exists is unlike the POSIX <code>touch</code> utility which merely
+     * exists is unlike the POSIX {@code touch} utility which merely
      * updates the file's access and/or modification time.
      */
     public static void touch(@Nonnull File file) throws IOException {
@@ -1610,7 +1610,7 @@ public class Util {
     /**
      * If this flag is set to true then we will request a garbage collection
      * after a deletion failure before we next retry the delete.<br>
-     * It defaults to <code>false</code> and is ignored unless
+     * It defaults to {@code false} and is ignored unless
      * {@link #DELETION_MAX} is greater than 1.
      * <p>
      * Setting this flag to true <i>may</i> resolve some problems on Windows,

core/src/main/java/hudson/console/HudsonExceptionNote.java

@@ -42,7 +42,7 @@ import org.jenkinsci.Symbol;
  * @since 1.349 - produces search hyperlinks to the http://stacktrace.jenkins-ci.org service
  * @since 2.56 - does nothing due to JENKINS-42861
  * @deprecated This ConsoleNote used to provide hyperlinks to the
- *             <code>http://stacktrace.jenkins-ci.org/</code> service, which is dead now (JENKINS-42861).
+ *             {@code http://stacktrace.jenkins-ci.org/} service, which is dead now (JENKINS-42861).
  *             This console note does nothing right now.
  */
 @Deprecated

core/src/main/java/hudson/model/AbstractItem.java

@@ -860,7 +860,7 @@ public abstract class AbstractItem extends Actionable implements Item, HttpDelet
     /**
      * Updates an Item by its XML definition.
      * @param source source of the Item's new definition.
-     *               The source should be either a <code>StreamSource</code> or a <code>SAXSource</code>, other
+     *               The source should be either a {@code StreamSource} or a {@code SAXSource}, other
      *               sources may not be handled.
      * @since 1.473
      */

core/src/main/java/hudson/model/Actionable.java

@@ -322,7 +322,7 @@ public abstract class Actionable extends AbstractModelObject implements ModelObj
      * Gets the action (first instance to be found) of a specified type that contributed to this build.
      *
      * @param type
-     * @return The action or <code>null</code> if no such actions exist.
+     * @return The action or {@code null} if no such actions exist.
      * @see #getActions(Class)
      */
     public <T extends Action> T getAction(Class<T> type) {

core/src/main/java/hudson/model/HealthReport.java

@@ -84,11 +84,11 @@ public class HealthReport implements Serializable, Comparable<HealthReport> {
     private String iconClassName;
 
     /**
-     * The path to the icon corresponding to this health score or <code>null</code> to use the default icon
+     * The path to the icon corresponding to this health score or {@code null} to use the default icon
      * corresponding to the current health score.
      * <p>
      * If the path begins with a '/' then it will be the absolute path, otherwise the image is assumed to be in one of
-     * <code>/images/16x16/</code>, <code>/images/24x24/</code> or <code>/images/32x32/</code> depending on the icon
+     * {@code /images/16x16/}, {@code /images/24x24/} or {@code /images/32x32/} depending on the icon
      * size selected by the user.
      */
     private String iconUrl;
@@ -110,12 +110,12 @@ public class HealthReport implements Serializable, Comparable<HealthReport> {
      * Create a new HealthReport.
      *
      * @param score       The percentage health score (from 0 to 100 inclusive).
-     * @param iconUrl     The path to the icon corresponding to this {@link Action}'s health or <code>null</code> to
+     * @param iconUrl     The path to the icon corresponding to this {@link Action}'s health or {@code null} to
      *                    display the default icon corresponding to the current health score.
      *                    <p>
      *                    If the path begins with a '/' then it will be the absolute path, otherwise the image is
-     *                    assumed to be in one of <code>/images/16x16/</code>, <code>/images/24x24/</code> or
-     *                    <code>/images/32x32/</code> depending on the icon size selected by the user.
+     *                    assumed to be in one of {@code /images/16x16/}, {@code /images/24x24/} or
+     *                    {@code /images/32x32/} depending on the icon size selected by the user.
      *                    When calculating the url to display for absolute paths, the getIconUrl(String) method
      *                    will replace /32x32/ in the path with the appropriate size.
      * @param description The health icon's tool-tip.
@@ -131,12 +131,12 @@ public class HealthReport implements Serializable, Comparable<HealthReport> {
      * Create a new HealthReport.
      *
      * @param score       The percentage health score (from 0 to 100 inclusive).
-     * @param iconUrl     The path to the icon corresponding to this {@link Action}'s health or <code>null</code> to
+     * @param iconUrl     The path to the icon corresponding to this {@link Action}'s health or {@code null} to
      *                    display the default icon corresponding to the current health score.
      *                    <p>
      *                    If the path begins with a '/' then it will be the absolute path, otherwise the image is
-     *                    assumed to be in one of <code>/images/16x16/</code>, <code>/images/24x24/</code> or
-     *                    <code>/images/32x32/</code> depending on the icon size selected by the user.
+     *                    assumed to be in one of {@code /images/16x16/}, {@code /images/24x24/} or
+     *                    {@code /images/32x32/} depending on the icon size selected by the user.
      *                    When calculating the url to display for absolute paths, the getIconUrl(String) method
      *                    will replace /32x32/ in the path with the appropriate size.
      * @param description The health icon's tool-tip.

core/src/main/java/hudson/model/HealthReportingAction.java

@@ -43,7 +43,7 @@ public interface HealthReportingAction extends Action {
      *
      * @return
      *     The health report for this instance of the Action or 
-     *     <code>null</code> if the Action does not want to 
+     *     {@code null} if the Action does not want to
      *     contribute a HealthReport.
      */
     HealthReport getBuildHealth();

core/src/main/java/hudson/model/Items.java

@@ -282,8 +282,8 @@ public class Items {
      * Computes the relative name of list of items after a rename or move occurred.
      * Used to manage job references as names in plugins to support {@link hudson.model.listeners.ItemListener#onLocationChanged}.
      * <p>
-     * In a hierarchical context, when a plugin has a reference to a job as <code>../foo/bar</code> this method will
-     * handle the relative path as "foo" is renamed to "zot" to compute <code>../zot/bar</code>
+     * In a hierarchical context, when a plugin has a reference to a job as {@code ../foo/bar} this method will
+     * handle the relative path as "foo" is renamed to "zot" to compute {@code ../zot/bar}
      *
      * @param oldFullName the old full name of the item
      * @param newFullName the new full name of the item

core/src/main/java/hudson/model/Node.java

@@ -180,7 +180,7 @@ public abstract class Node extends AbstractModelObject implements Reconfigurable
     /**
      * Returns the number of {@link Executor}s.
      *
-     * This may be different from <code>getExecutors().size()</code>
+     * This may be different from {@code getExecutors().size()}
      * because it takes time to adjust the number of executors.
      */
     @Exported

core/src/main/java/hudson/model/UpdateCenter.java

@@ -140,7 +140,7 @@ import org.kohsuke.stapler.interceptor.RequirePOST;
  * for more information.
  * <p>
  * <b>Extending Update Centers</b>. The update center in {@code Jenkins} can be replaced by defining a
- * System Property (<code>hudson.model.UpdateCenter.className</code>). See {@link #createUpdateCenter(hudson.model.UpdateCenter.UpdateCenterConfiguration)}.
+ * System Property ({@code hudson.model.UpdateCenter.className}). See {@link #createUpdateCenter(hudson.model.UpdateCenter.UpdateCenterConfiguration)}.
  * This className should be available on early startup, so it cannot come only from a library 
  * (e.g. Jenkins module or Extra library dependency in the WAR file project).
  * Plugins cannot be used for such purpose.

core/src/main/java/hudson/model/User.java

@@ -587,13 +587,13 @@ public class User extends AbstractModelObject implements AccessControlled, Descr
     }
 
     /**
-     * Gets the {@link User} object by its <code>id</code>
+     * Gets the {@link User} object by its {@code id}
      *
      * @param id     the id of the user to retrieve and optionally create if it does not exist.
-     * @param create If <code>true</code>, this method will never return <code>null</code> for valid input (by creating a
-     *               new {@link User} object if none exists.) If <code>false</code>, this method will return
-     *               <code>null</code> if {@link User} object with the given id doesn't exist.
-     * @return the a User whose id is <code>id</code>, or <code>null</code> if <code>create</code> is <code>false</code>
+     * @param create If {@code true}, this method will never return {@code null} for valid input (by creating a
+     *               new {@link User} object if none exists.) If {@code false}, this method will return
+     *               {@code null} if {@link User} object with the given id doesn't exist.
+     * @return the a User whose id is {@code id}, or {@code null} if {@code create} is {@code false}
      * and the user does not exist.
      * @since 1.651.2 / 2.3
      */
@@ -1114,7 +1114,7 @@ public class User extends AbstractModelObject implements AccessControlled, Descr
 
         /**
          * extract user ID from idOrFullName with help from contextual infos.
-         * can return <code>null</code> if no user ID matched the input
+         * can return {@code null} if no user ID matched the input
          */
         public abstract @CheckForNull String resolveCanonicalId(String idOrFullName, Map<String, ?> context);
 

core/src/main/java/hudson/model/View.java

@@ -1206,7 +1206,7 @@ public abstract class View extends AbstractModelObject implements AccessControll
     /**
      * Updates the View with the new XML definition.
      * @param source source of the Item's new definition.
-     *               The source should be either a <code>StreamSource</code> or <code>SAXSource</code>, other sources
+     *               The source should be either a {@code StreamSource} or {@code SAXSource}, other sources
      *               may not be handled.
      */
     public void updateByXml(Source source) throws IOException {

core/src/main/java/hudson/model/ViewProperty.java

@@ -38,9 +38,9 @@ import org.kohsuke.stapler.StaplerRequest;
  * persisted with the view object.
  *
  * <p>
- * Configuration screen should be defined in <code>config.jelly</code>.
+ * Configuration screen should be defined in {@code config.jelly}.
  * Within this page, the {@link ViewProperty} instance is available as
- * the <code>instance</code> EL variable (while the <code>it</code> EL variable
+ * the {@code instance} EL variable (while the {@code it} EL variable
  * refers to the {@link View}.
  *
  * @author Stephen Connolly

core/src/main/java/hudson/model/WorkspaceBrowser.java

@@ -46,7 +46,7 @@ public abstract class WorkspaceBrowser implements ExtensionPoint {
     /**
      * Provide access to job's workspace
      * @param job
-     * @return <code>null</code> if this WorkspaceBrowser don't have a workspace for this job
+     * @return {@code null} if this WorkspaceBrowser don't have a workspace for this job
      */
     public abstract @CheckForNull FilePath getWorkspace(Job job);
 

core/src/main/java/hudson/model/labels/LabelAtomPropertyDescriptor.java

@@ -33,7 +33,7 @@ import hudson.model.Descriptor;
  * Put {@link Extension} on your descriptor implementation to have it auto-registered.
  * 
  * <p>
- * When extending this class, override <code>Descriptor.getDisplayName()</code>. In the
+ * When extending this class, override {@code Descriptor.getDisplayName()}. In the
  * context of LabelAtomPropertyDescriptor, this function is used to determine the label of
  * the checkbox shown in the label's configuration page to activate the extension.
  *

core/src/main/java/hudson/scm/SCM.java

@@ -643,7 +643,7 @@ public abstract class SCM implements Describable<SCM>, ExtensionPoint {
      * all the module roots that were checked out from SCM.
      *
      * <p>
-     * For normal SCMs, the array will be of length <code>1</code> and it's contents
+     * For normal SCMs, the array will be of length {@code 1} and it's contents
      * will be identical to calling {@link #getModuleRoot(FilePath, AbstractBuild)}.
      *
      * @param workspace The workspace root directory

core/src/main/java/hudson/security/HudsonPrivateSecurityRealm.java

@@ -515,7 +515,7 @@ public class HudsonPrivateSecurityRealm extends AbstractPasswordBasedSecurityRea
      * Creates a new user account by registering a JBCrypt Hashed password with the user.
      *
      * @param userName The user's name
-     * @param hashedPassword A hashed password, must begin with <code>#jbcrypt:</code>
+     * @param hashedPassword A hashed password, must begin with {@code #jbcrypt:}
      */
     public User createAccountWithHashedPassword(String userName, String hashedPassword) throws IOException {
         if (!PASSWORD_ENCODER.isPasswordHashed(hashedPassword)) {

core/src/main/java/hudson/slaves/CloudProvisioningListener.java

@@ -33,7 +33,7 @@ public abstract class CloudProvisioningListener implements ExtensionPoint {
      *              May be null if provisioning for unlabeled builds.
      * @param numExecutors The number of executors needed.
      *
-     * @return <code>null</code> if provisioning can proceed, or a
+     * @return {@code null} if provisioning can proceed, or a
      * {@link CauseOfBlockage} reason why it cannot be provisioned.
      */
     public CauseOfBlockage canProvision(Cloud cloud, Label label, int numExecutors) {
@@ -58,7 +58,7 @@ public abstract class CloudProvisioningListener implements ExtensionPoint {
     /**
      * Called when the {@link NodeProvisioner.PlannedNode#future} completes.
      *
-     * @param plannedNode the plannedNode which resulted in the <code>node</code> being provisioned
+     * @param plannedNode the plannedNode which resulted in the {@code node} being provisioned
      * @param node the node which has been provisioned by the cloud
      */
     public void onComplete(NodeProvisioner.PlannedNode plannedNode, Node node) {
@@ -66,9 +66,9 @@ public abstract class CloudProvisioningListener implements ExtensionPoint {
     }
 
     /**
-     * Called when the <code>node</code>is fully connected in the Jenkins.
+     * Called when the {@code node}is fully connected in the Jenkins.
      *
-     * @param plannedNode the plannedNode which resulted in the <code>node</code> being provisioned
+     * @param plannedNode the plannedNode which resulted in the {@code node} being provisioned
      * @param node the node which has been provisioned by the cloud
      *
      * @since 2.37
@@ -90,7 +90,7 @@ public abstract class CloudProvisioningListener implements ExtensionPoint {
     /**
      * Called when {@link Jenkins#addNode(Node)} throws an exception.
      *
-     * @param plannedNode the plannedNode which resulted in the <code>node</code> being provisioned
+     * @param plannedNode the plannedNode which resulted in the {@code node} being provisioned
      * @param node the node which has been provisioned by the cloud
      * @param t the exception
      *

core/src/main/java/hudson/slaves/ComputerLauncher.java

@@ -166,7 +166,7 @@ public abstract class ComputerLauncher extends AbstractDescribableImpl<ComputerL
     public static final DescriptorList<ComputerLauncher> LIST = new DescriptorList<>(ComputerLauncher.class);
 
     /**
-     * Given the output of "java -version" in <code>r</code>, determine if this
+     * Given the output of "java -version" in {@code r}, determine if this
      * version of Java is supported, or throw {@link IOException}.
      *
      * @param logger

core/src/main/java/hudson/slaves/NodeProperty.java

@@ -57,7 +57,7 @@ import javax.annotation.Nonnull;
  * {@link NodeProperty}s show up in the configuration screen of a node, and they are persisted with the {@link Node} object.
  * 
  * <p>
- * To add UI action to {@link Node}s, i.e. a new link shown in the left side menu on a node page (<code>./computer/&lt;a node&gt;</code>), see instead {@link hudson.model.TransientComputerActionFactory}.
+ * To add UI action to {@link Node}s, i.e. a new link shown in the left side menu on a node page ({@code ./computer/<a node>}), see instead {@link hudson.model.TransientComputerActionFactory}.
  *
  *
  * <h2>Views</h2>
@@ -90,7 +90,7 @@ public abstract class NodeProperty<N extends Node> implements ReconfigurableDesc
      * Called by the {@link Node} to help determine whether or not it should
      * take the given task. Individual properties can return a non-null value
      * here if there is some reason the given task should not be run on its
-     * associated node. By default, this method returns <code>null</code>.
+     * associated node. By default, this method returns {@code null}.
      *
      * @since 1.360
      * @deprecated as of 1.413
@@ -105,7 +105,7 @@ public abstract class NodeProperty<N extends Node> implements ReconfigurableDesc
      * Called by the {@link Node} to help determine whether or not it should
      * take the given task. Individual properties can return a non-null value
      * here if there is some reason the given task should not be run on its
-     * associated node. By default, this method returns <code>null</code>.
+     * associated node. By default, this method returns {@code null}.
      *
      * @since 1.413
      */

core/src/main/java/hudson/util/EditDistance.java

@@ -45,8 +45,8 @@ public class EditDistance {
     }
 
     /**
-     * Finds the string in the <code>group</code> closest to
-     * <code>key</code> and returns it.
+     * Finds the string in the {@code group} closest to
+     * {@code key} and returns it.
      *
      * @return null if group.length==0.
      */

core/src/main/java/hudson/util/FileChannelWriter.java

@@ -41,7 +41,7 @@ public class FileChannelWriter extends Writer {
      * <p>Basically, {@link BufferedWriter#flush()} does nothing, so when existing code was rewired to use
      * {@link FileChannelWriter#flush()} behind {@link AtomicFileWriter} and that method actually ends up calling
      * {@link FileChannel#force(boolean)}, many things started timing out. The main reason is probably because XStream's
-     * {@link com.thoughtworks.xstream.core.util.QuickWriter} uses <code>flush()</code> a lot.
+     * {@link com.thoughtworks.xstream.core.util.QuickWriter} uses {@code flush()} a lot.
      * So we introduced this field to be able to still get a better integrity for the use case of {@link AtomicFileWriter}.
      * Because from there, we make sure to call {@link #close()} from {@link AtomicFileWriter#commit()} anyway.
      */

core/src/main/java/hudson/util/IOUtils.java

@@ -103,7 +103,7 @@ public class IOUtils {
 
     /**
      * See {@link hudson.FilePath#isAbsolute(String)}.
-     * @param path String representing <code> Platform Specific </code> (unlike FilePath, which may get Platform agnostic paths), may not be null
+     * @param path String representing {@code Platform Specific } (unlike FilePath, which may get Platform agnostic paths), may not be null
      * @return true if String represents absolute path on this platform, false otherwise
      */
     public static boolean isAbsolute(String path) {

core/src/main/java/hudson/util/TextFile.java

@@ -98,7 +98,7 @@ public class TextFile {
      * Creates a new {@link jenkins.util.io.LinesStream} of the file.
      * <p>
      * Note: The caller is responsible for closing the returned
-     * <code>LinesStream</code>.
+     * {@code LinesStream}.
      * @throws IOException if the file cannot be converted to a
      * {@link java.nio.file.Path} or if the file cannot be opened for reading
      * @since 2.111

core/src/main/java/jenkins/ExtensionFilter.java

@@ -65,7 +65,7 @@ public abstract class ExtensionFilter implements ExtensionPoint {
      *      type, but the contract type, such as {@link Descriptor}, {@link AdministrativeMonitor}, etc.
      * @param component the actual discovered {@link hudson.Extension} object.
      * @return
-     *      <code>true</code> to let the component into Jenkins. <code>false</code> to drop it and pretend
+     *      {@code true} to let the component into Jenkins. {@code false} to drop it and pretend
      *      as if it didn't exist. When any one of {@link ExtensionFilter}s veto
      *      a component, it gets dropped.
      */

core/src/main/java/jenkins/install/InstallState.java

@@ -42,7 +42,7 @@ import org.apache.commons.lang.StringUtils;
  * include something in a script that call
  * to `onSetupWizardInitialized` with a callback, for example:
  * 
- * See <em><code>upgradeWizard.js</code></em> for an example
+ * See <em>{@code upgradeWizard.js}</em> for an example
  * 
  * @author <a href="mailto:tom.fennelly@gmail.com">tom.fennelly@gmail.com</a>
  */

core/src/main/java/jenkins/model/Jenkins.java

@@ -462,9 +462,9 @@ public class Jenkins extends AbstractCIBase implements DirectlyModifiableTopLeve
      * A file will be created at the very end of the Jenkins initialization process.
      * I.e. if the file is present, that means this is *NOT* a fresh startup.
      *
-     * <code>
+     * {@code
      *     STARTUP_MARKER_FILE.get(); // returns false if we are on a fresh startup. True for next startups.
-     * </code>
+     * }
      */
     private transient static FileBoolean STARTUP_MARKER_FILE;
 
@@ -2726,7 +2726,7 @@ public class Jenkins extends AbstractCIBase implements DirectlyModifiableTopLeve
 
     /**
      * The strategy used to check the project names.
-     * @return never <code>null</code>
+     * @return never {@code null}
      */
     public ProjectNamingStrategy getProjectNamingStrategy() {
         return projectNamingStrategy == null ? ProjectNamingStrategy.DEFAULT_NAMING_STRATEGY : projectNamingStrategy;

core/src/main/java/jenkins/model/ProjectNamingStrategy.java

@@ -72,10 +72,10 @@ public abstract class ProjectNamingStrategy implements Describable<ProjectNaming
     }
 
     /**
-     * This flag can be used to force existing jobs to be migrated to a new naming strategy - if this method returns true, the naming will be enforced at every config change. If <code>false</code> is
+     * This flag can be used to force existing jobs to be migrated to a new naming strategy - if this method returns true, the naming will be enforced at every config change. If {@code false} is
      * returned, only new jobs have to follow the strategy.
      * 
-     * @return <code>true</code> if existing jobs should be enforced to confirm to the naming standard.
+     * @return {@code true} if existing jobs should be enforced to confirm to the naming standard.
      */
     public boolean isForceExistingJobs() {
         return false;

core/src/main/java/jenkins/model/lazy/BuildReference.java

@@ -131,13 +131,13 @@ public final class BuildReference<R> {
      * Default factory if none other are installed.
      * Its behavior can be controlled via the system property {@link DefaultHolderFactory#MODE_PROPERTY}:
      * <dl>
-     * <dt><code>soft</code> (default)
+     * <dt>{@code soft} (default)
      * <dd>Use {@link SoftReference}s. Builds will be kept around so long as memory pressure is not too high.
-     * <dt><code>weak</code>
+     * <dt>{@code weak}
      * <dd>Use {@link WeakReference}s. Builds will be kept only until the next full garbage collection cycle.
-     * <dt><code>strong</code>
+     * <dt>{@code strong}
      * <dd>Use strong references. Builds will still be loaded lazily, but once loaded, will not be released.
-     * <dt><code>none</code>
+     * <dt>{@code none}
      * <dd>Do not hold onto builds at all. Mainly offered as an option for the purpose of reproducing lazy-loading bugs.
      * </dl>
      */

core/src/main/java/jenkins/mvn/GlobalSettingsProvider.java

@@ -25,7 +25,7 @@ public abstract class GlobalSettingsProvider extends AbstractDescribableImpl<Glo
      * 
      * @param build
      *            the build to provide the settings for
-     * @return the filepath to the provided file. <code>null</code> if no settings will be provided.
+     * @return the filepath to the provided file. {@code null} if no settings will be provided.
      */
     public abstract FilePath supplySettings(AbstractBuild<?, ?> build, TaskListener listener);
 
@@ -38,7 +38,7 @@ public abstract class GlobalSettingsProvider extends AbstractDescribableImpl<Glo
     }
 
     /**
-     * Convenience method handling all <code>null</code> checks. Provides the path on the (possible) remote settings file.
+     * Convenience method handling all {@code null} checks. Provides the path on the (possible) remote settings file.
      * 
      * @param settings
      *            the provider to be used
@@ -57,7 +57,7 @@ public abstract class GlobalSettingsProvider extends AbstractDescribableImpl<Glo
     }
 
     /**
-     * Convenience method handling all <code>null</code> checks. Provides the path on the (possible) remote settings file.
+     * Convenience method handling all {@code null} checks. Provides the path on the (possible) remote settings file.
      * 
      * @param provider
      *            the provider to be used

core/src/main/java/jenkins/mvn/SettingsProvider.java

@@ -24,7 +24,7 @@ public abstract class SettingsProvider extends AbstractDescribableImpl<SettingsP
      * Configure maven launcher argument list with adequate settings path. Implementations should be aware that this method might get called multiple times during a build.
      * 
      * @param build
-     * @return the filepath to the provided file. <code>null</code> if no settings will be provided.
+     * @return the filepath to the provided file. {@code null} if no settings will be provided.
      */
     public abstract FilePath supplySettings(AbstractBuild<?, ?> build, TaskListener listener);
 
@@ -37,7 +37,7 @@ public abstract class SettingsProvider extends AbstractDescribableImpl<SettingsP
     }
 
     /**
-     * Convenience method handling all <code>null</code> checks. Provides the path on the (possible) remote settings file.
+     * Convenience method handling all {@code null} checks. Provides the path on the (possible) remote settings file.
      * 
      * @param settings
      *            the provider to be used
@@ -56,7 +56,7 @@ public abstract class SettingsProvider extends AbstractDescribableImpl<SettingsP
     }
 
     /**
-     * Convenience method handling all <code>null</code> checks. Provides the path on the (possible) remote settings file.
+     * Convenience method handling all {@code null} checks. Provides the path on the (possible) remote settings file.
      * 
      * @param settings
      *            the provider to be used

core/src/main/java/jenkins/org/apache/commons/validator/routines/DomainValidator.java

@@ -50,11 +50,11 @@ import java.util.Locale;
  *
  *   <ul>
  *     <li>{@link #isValidInfrastructureTld} - validates infrastructure TLDs
- *         (<code>.arpa</code>, etc.)</li>
+ *         ({@code .arpa}, etc.)</li>
  *     <li>{@link #isValidGenericTld} - validates generic TLDs
- *         (<code>.com, .org</code>, etc.)</li>
+ *         ({@code .com, .org}, etc.)</li>
  *     <li>{@link #isValidCountryCodeTld} - validates country code TLDs
- *         (<code>.us, .uk, .cn</code>, etc.)</li>
+ *         ({@code .us, .uk, .cn}, etc.)</li>
  *   </ul>
  *
  * <p>
@@ -149,7 +149,7 @@ public class DomainValidator implements Serializable {
     }
     
     /**
-     * Returns true if the specified <code>String</code> parses
+     * Returns true if the specified {@code String} parses
      * as a valid domain name with a recognized top-level domain.
      * The parsing is case-insensitive.
      * @param domain the parameter to check for domain name syntax
@@ -194,7 +194,7 @@ public class DomainValidator implements Serializable {
     }
     
     /**
-     * Returns true if the specified <code>String</code> matches any
+     * Returns true if the specified {@code String} matches any
      * IANA-defined top-level domain. Leading dots are ignored if present.
      * The search is case-insensitive.
      * @param tld the parameter to check for TLD status, not null
@@ -211,7 +211,7 @@ public class DomainValidator implements Serializable {
     }
     
     /**
-     * Returns true if the specified <code>String</code> matches any
+     * Returns true if the specified {@code String} matches any
      * IANA-defined infrastructure top-level domain. Leading dots are
      * ignored if present. The search is case-insensitive.
      * @param iTld the parameter to check for infrastructure TLD status, not null
@@ -223,7 +223,7 @@ public class DomainValidator implements Serializable {
     }
     
     /**
-     * Returns true if the specified <code>String</code> matches any
+     * Returns true if the specified {@code String} matches any
      * IANA-defined generic top-level domain. Leading dots are ignored
      * if present. The search is case-insensitive.
      * @param gTld the parameter to check for generic TLD status, not null
@@ -236,7 +236,7 @@ public class DomainValidator implements Serializable {
     }
     
     /**
-     * Returns true if the specified <code>String</code> matches any
+     * Returns true if the specified {@code String} matches any
      * IANA-defined country code top-level domain. Leading dots are
      * ignored if present. The search is case-insensitive.
      * @param ccTld the parameter to check for country code TLD status, not null
@@ -249,7 +249,7 @@ public class DomainValidator implements Serializable {
     }
     
     /**
-     * Returns true if the specified <code>String</code> matches any
+     * Returns true if the specified {@code String} matches any
      * widely used "local" domains (localhost or localdomain). Leading dots are
      * ignored if present. The search is case-insensitive.
      * @param lTld the parameter to check for local TLD status, not null

core/src/main/java/jenkins/org/apache/commons/validator/routines/InetAddressValidator.java

@@ -26,7 +26,7 @@ import java.util.Arrays;
 import java.util.List;
 
 /**
- * <p><b>InetAddress</b> validation and conversion routines (<code>java.net.InetAddress</code>).</p>
+ * <p><b>InetAddress</b> validation and conversion routines ({@code java.net.InetAddress}).</p>
  *
  * <p>This class provides methods to validate a candidate IP address.
  *

core/src/main/java/jenkins/org/apache/commons/validator/routines/RegexValidator.java

@@ -34,29 +34,29 @@ import java.util.regex.Pattern;
  * expressions:
  * </p>
  * <pre>
- * <code>
+ * {@code
  * String[] regexs = new String[] {...};
  * RegexValidator validator = new RegexValidator(regexs, false);
- * </code>
+ * }
  * </pre>
  *
  * <ul>
- *   <li>Validate <code>true</code> or <code>false</code>:</li>
+ *   <li>Validate {@code true} or {@code false}:</li>
  *   <li>
  *     <ul>
- *       <li><code>boolean valid = validator.isValidRootUrl(value);</code></li>
+ *       <li>{@code boolean valid = validator.isValidRootUrl(value);}</li>
  *     </ul>
  *   </li>
  *   <li>Validate returning an aggregated String of the matched groups:</li>
  *   <li>
  *     <ul>
- *       <li><code>String result = validator.validate(value);</code></li>
+ *       <li>{@code String result = validator.validate(value);}</li>
  *     </ul>
  *   </li>
  *   <li>Validate returning the matched groups:</li>
  *   <li>
  *     <ul>
- *       <li><code>String[] result = validator.match(value);</code></li>
+ *       <li>{@code String[] result = validator.match(value);}</li>
  *     </ul>
  *   </li>
  * </ul>
@@ -97,7 +97,7 @@ public class RegexValidator implements Serializable {
      *
      * @param regex The regular expression this validator will
      * validate against
-     * @param caseSensitive when <code>true</code> matching is <i>case
+     * @param caseSensitive when {@code true} matching is <i>case
      * sensitive</i>, otherwise matching is <i>case in-sensitive</i>
      */
     public RegexValidator(String regex, boolean caseSensitive) {
@@ -121,7 +121,7 @@ public class RegexValidator implements Serializable {
      *
      * @param regexs The set of regular expressions this validator will
      * validate against
-     * @param caseSensitive when <code>true</code> matching is <i>case
+     * @param caseSensitive when {@code true} matching is <i>case
      * sensitive</i>, otherwise matching is <i>case in-sensitive</i>
      */
     public RegexValidator(String[] regexs, boolean caseSensitive) {
@@ -142,8 +142,8 @@ public class RegexValidator implements Serializable {
      * Validate a value against the set of regular expressions.
      *
      * @param value The value to validate.
-     * @return <code>true</code> if the value is valid
-     * otherwise <code>false</code>.
+     * @return {@code true} if the value is valid
+     * otherwise {@code false}.
      */
     public boolean isValid(String value) {
         if (value == null) {
@@ -163,7 +163,7 @@ public class RegexValidator implements Serializable {
      *
      * @param value The value to validate.
      * @return String array of the <i>groups</i> matched if
-     * valid or <code>null</code> if invalid
+     * valid or {@code null} if invalid
      */
     public String[] match(String value) {
         if (value == null) {
@@ -190,7 +190,7 @@ public class RegexValidator implements Serializable {
      *
      * @param value The value to validate.
      * @return Aggregated String value comprised of the
-     * <i>groups</i> matched if valid or <code>null</code> if invalid
+     * <i>groups</i> matched if valid or {@code null} if invalid
      */
     public String validate(String value) {
         if (value == null) {

core/src/main/java/jenkins/org/apache/commons/validator/routines/UrlValidator.java

@@ -258,7 +258,7 @@ public class UrlValidator implements Serializable {
      * This allows the user to override the standard set of domains.
      * @param options Validation options. Set using the public constants of this class.
      * To set multiple options, simply add them together:
-     * <p><code>ALLOW_2_SLASHES + NO_FRAGMENTS</code></p>
+     * <p>{@code ALLOW_2_SLASHES + NO_FRAGMENTS}</p>
      * enables both of those options.
      */
     public UrlValidator(RegexValidator authorityValidator, long options) {
@@ -271,7 +271,7 @@ public class UrlValidator implements Serializable {
      * @param authorityValidator Regular expression validator used to validate the authority part
      * @param options Validation options. Set using the public constants of this class.
      * To set multiple options, simply add them together:
-     * <p><code>ALLOW_2_SLASHES + NO_FRAGMENTS</code></p>
+     * <p>{@code ALLOW_2_SLASHES + NO_FRAGMENTS}</p>
      * enables both of those options.
      */
     public UrlValidator(String[] schemes, RegexValidator authorityValidator, long options) {
@@ -298,7 +298,7 @@ public class UrlValidator implements Serializable {
      * Note that the method calls #isValidAuthority()
      * which checks that the domain is valid.
      *
-     * @param value The value validation is being performed on.  A <code>null</code>
+     * @param value The value validation is being performed on.  A {@code null}
      * value is considered invalid.
      * @return true if the url is valid.
      */
@@ -353,7 +353,7 @@ public class UrlValidator implements Serializable {
      * then only those schemes are allowed.
      * Otherwise the default schemes are "http", "https", "ftp".
      * Matching is case-blind.
-     * @param scheme The scheme to validate.  A <code>null</code> value is considered
+     * @param scheme The scheme to validate.  A {@code null} value is considered
      * invalid.
      * @return true if valid.
      */
@@ -376,7 +376,7 @@ public class UrlValidator implements Serializable {
     
     /**
      * Returns true if the authority is properly formatted.  An authority is the combination
-     * of hostname and port.  A <code>null</code> authority value is considered invalid.
+     * of hostname and port.  A {@code null} authority value is considered invalid.
      * Note: this implementation validates the domain unless a RegexValidator was provided.
      * If a RegexValidator was supplied and it matches, then the authority is regarded
      * as valid with no further checks, otherwise the method checks against the
@@ -443,7 +443,7 @@ public class UrlValidator implements Serializable {
     }
     
     /**
-     * Returns true if the path is valid.  A <code>null</code> value is considered invalid.
+     * Returns true if the path is valid.  A {@code null} value is considered invalid.
      * @param path Path value to validate.
      * @return true if path is valid.
      */

core/src/main/java/jenkins/security/ExceptionTranslationFilter.java

@@ -44,20 +44,20 @@ import java.util.logging.Level;
 import java.util.logging.Logger;
 
 /**
- * Handles any <code>AccessDeniedException</code> and <code>AuthenticationException</code> thrown within the
+ * Handles any {@code AccessDeniedException} and {@code AuthenticationException} thrown within the
  * filter chain.
  * <p>
  * This filter is necessary because it provides the bridge between Java exceptions and HTTP responses.
  * It is solely concerned with maintaining the user interface. This filter does not do any actual security enforcement.
  * </p>
  * <p>
- * If an {@link AuthenticationException} is detected, the filter will launch the <code>authenticationEntryPoint</code>.
+ * If an {@link AuthenticationException} is detected, the filter will launch the {@code authenticationEntryPoint}.
  * This allows common handling of authentication failures originating from any subclass of
  * {@code AbstractSecurityInterceptor}.
  * </p>
  * <p>
  * If an {@link AccessDeniedException} is detected, the filter will determine whether or not the user is an anonymous
- * user. If they are an anonymous user, the <code>authenticationEntryPoint</code> will be launched. If they are not
+ * user. If they are an anonymous user, the {@code authenticationEntryPoint} will be launched. If they are not
  * an anonymous user, the filter will delegate to the {@code AccessDeniedHandler}.
  * By default the filter will use {@code AccessDeniedHandlerImpl}.
  * </p>
@@ -65,16 +65,16 @@ import java.util.logging.Logger;
  * To use this filter, it is necessary to specify the following properties:
  * </p>
  * <ul>
- * <li><code>authenticationEntryPoint</code> indicates the handler that
+ * <li>{@code authenticationEntryPoint} indicates the handler that
  * should commence the authentication process if an
- * <code>AuthenticationException</code> is detected. Note that this may also
+ * {@code AuthenticationException} is detected. Note that this may also
  * switch the current protocol from http to https for an SSL login.</li>
- * <li><code>portResolver</code> is used to determine the "real" port that a
+ * <li>{@code portResolver} is used to determine the "real" port that a
  * request was received on.</li>
  * </ul>
  * <P>
  * <B>Do not use this class directly.</B> Instead configure
- * <code>web.xml</code> to use the {@code FilterToBeanProxy}.
+ * {@code web.xml} to use the {@code FilterToBeanProxy}.
  * </p>
  *
  * @author Ben Alex
@@ -171,17 +171,17 @@ public class ExceptionTranslationFilter implements Filter, InitializingBean {
 	}
 
 	/**
-	 * If <code>true</code>, indicates that <code>SecurityEnforcementFilter</code> is permitted to store the target
-	 * URL and exception information in the <code>HttpSession</code> (the default).
-     * In situations where you do not wish to unnecessarily create <code>HttpSession</code>s - because the user agent
+	 * If {@code true}, indicates that {@code SecurityEnforcementFilter} is permitted to store the target
+	 * URL and exception information in the {@code HttpSession} (the default).
+     * In situations where you do not wish to unnecessarily create {@code HttpSession}s - because the user agent
      * will know the failed URL, such as with BASIC or Digest authentication - you may wish to
-	 * set this property to <code>false</code>. Remember to also set the
+	 * set this property to {@code false}. Remember to also set the
 	 * {@link org.acegisecurity.context.HttpSessionContextIntegrationFilter#allowSessionCreation}
-	 * to <code>false</code> if you set this property to <code>false</code>.
+	 * to {@code false} if you set this property to {@code false}.
 	 *
-	 * @return <code>true</code> if the <code>HttpSession</code> will be
-	 * used to store information about the failed request, <code>false</code>
-	 * if the <code>HttpSession</code> will not be used
+	 * @return {@code true} if the {@code HttpSession} will be
+	 * used to store information about the failed request, {@code false}
+	 * if the {@code HttpSession} will not be used
 	 */
 	public boolean isCreateSessionAllowed() {
 		return createSessionAllowed;

core/src/main/java/jenkins/security/stapler/DoActionFilter.java

@@ -45,7 +45,7 @@ public class DoActionFilter implements FunctionList.Filter {
      * if a method has "do" as name (not possible in pure Java but doable in Groovy or other JVM languages)
      * the new system does not consider it as a web method. 
      * <p>
-     * Use <code>@WebMethod(name="")</code> or <code>doIndex</code> in such case.
+     * Use {@code @WebMethod(name="")} or {@code doIndex} in such case.
      */
     private static final Pattern DO_METHOD_REGEX = Pattern.compile("^do[^a-z].*");
     

core/src/main/java/jenkins/telemetry/Telemetry.java

@@ -56,8 +56,8 @@ import java.util.logging.Logger;
 /**
  * Extension point for collecting JEP-214 telemetry.
  *
- * Implementations should provide a <code>description.jelly</code> file with additional details about their purpose and
- * behavior which will be included in <code>help-usageStatisticsCollected.jelly</code> for {@link UsageStatistics}.
+ * Implementations should provide a {@code description.jelly} file with additional details about their purpose and
+ * behavior which will be included in {@code help-usageStatisticsCollected.jelly} for {@link UsageStatistics}.
  *
  * @see <a href="https://jenkins.io/jep/214">JEP-214</a>
  *

core/src/main/java/jenkins/util/AntClassLoader.java

@@ -102,7 +102,7 @@ public class AntClassLoader extends ClassLoader implements SubBuildListener {
 
         /**
          * The URL of the next resource to return in the enumeration. If this
-         * field is <code>null</code> then the enumeration has been completed,
+         * field is {@code null} then the enumeration has been completed,
          * i.e., there are no more elements to return.
          */
         private URL nextResource;
@@ -123,8 +123,8 @@ public class AntClassLoader extends ClassLoader implements SubBuildListener {
          * Indicates whether there are more elements in the enumeration to
          * return.
          *
-         * @return <code>true</code> if there are more elements in the
-         *         enumeration; <code>false</code> otherwise.
+         * @return {@code true} if there are more elements in the
+         *         enumeration; {@code false} otherwise.
          */
         public boolean hasMoreElements() {
             return (this.nextResource != null);
@@ -146,9 +146,9 @@ public class AntClassLoader extends ClassLoader implements SubBuildListener {
 
         /**
          * Locates the next resource of the correct name in the classpath and
-         * sets <code>nextResource</code> to the URL of that resource. If no
-         * more resources can be found, <code>nextResource</code> is set to
-         * <code>null</code>.
+         * sets {@code nextResource} to the URL of that resource. If no
+         * more resources can be found, {@code nextResource} is set to
+         * {@code null}.
          */
         private void findNextResource() {
             URL url = null;
@@ -266,11 +266,11 @@ public class AntClassLoader extends ClassLoader implements SubBuildListener {
      * Creates a classloader for the given project using the classpath given.
      *
      * @param project The project to which this classloader is to belong.
-     *                Must not be <code>null</code>.
+     *                Must not be {@code null}.
      * @param classpath The classpath to use to load the classes.  This
      *                is combined with the system classpath in a manner
      *                determined by the value of ${build.sysclasspath}.
-     *                May be <code>null</code>, in which case no path
+     *                May be {@code null}, in which case no path
      *                elements are set up to start with.
      */
     public AntClassLoader(Project project, Path classpath) {
@@ -283,15 +283,15 @@ public class AntClassLoader extends ClassLoader implements SubBuildListener {
      * Creates a classloader for the given project using the classpath given.
      *
      * @param parent The parent classloader to which unsatisfied loading
-     *               attempts are delegated. May be <code>null</code>,
+     *               attempts are delegated. May be {@code null},
      *               in which case the classloader which loaded this
      *               class is used as the parent.
      * @param project The project to which this classloader is to belong.
-     *                Must not be <code>null</code>.
+     *                Must not be {@code null}.
      * @param classpath the classpath to use to load the classes.
-     *                  May be <code>null</code>, in which case no path
+     *                  May be {@code null}, in which case no path
      *                  elements are set up to start with.
-     * @param parentFirst If <code>true</code>, indicates that the parent
+     * @param parentFirst If {@code true}, indicates that the parent
      *                    classloader should be consulted  before trying to
      *                    load the a class through this loader.
      */
@@ -309,11 +309,11 @@ public class AntClassLoader extends ClassLoader implements SubBuildListener {
      * Creates a classloader for the given project using the classpath given.
      *
      * @param project The project to which this classloader is to belong.
-     *                Must not be <code>null</code>.
+     *                Must not be {@code null}.
      * @param classpath The classpath to use to load the classes. May be
-     *                  <code>null</code>, in which case no path
+     *                  {@code null}, in which case no path
      *                  elements are set up to start with.
-     * @param parentFirst If <code>true</code>, indicates that the parent
+     * @param parentFirst If {@code true}, indicates that the parent
      *                    classloader should be consulted before trying to
      *                    load the a class through this loader.
      */
@@ -327,10 +327,10 @@ public class AntClassLoader extends ClassLoader implements SubBuildListener {
      * classes.
      *
      * @param parent The parent classloader to which unsatisfied loading
-     *               attempts are delegated. May be <code>null</code>,
+     *               attempts are delegated. May be {@code null},
      *               in which case the classloader which loaded this
      *               class is used as the parent.
-     * @param parentFirst If <code>true</code>, indicates that the parent
+     * @param parentFirst If {@code true}, indicates that the parent
      *                    classloader should be consulted before trying to
      *                    load the a class through this loader.
      */
@@ -402,7 +402,7 @@ public class AntClassLoader extends ClassLoader implements SubBuildListener {
      * Logs a message through the project object if one has been provided.
      *
      * @param message The message to log.
-     *                Should not be <code>null</code>.
+     *                Should not be {@code null}.
      *
      * @param priority The logging priority of the message.
      */
@@ -447,7 +447,7 @@ public class AntClassLoader extends ClassLoader implements SubBuildListener {
      * Adds an element to the classpath to be searched.
      *
      * @param pathElement The path element to add. Must not be
-     *                    <code>null</code>.
+     *                    {@code null}.
      *
      * @exception BuildException if the given path element cannot be resolved
      *                           against the project.
@@ -578,7 +578,7 @@ public class AntClassLoader extends ClassLoader implements SubBuildListener {
      * way.
      *
      * @param theClass The class to initialize.
-     *                 Must not be <code>null</code>.
+     *                 Must not be {@code null}.
      *
      * @deprecated since 1.6.x.
      *             Use Class.forName with initialize=true instead.
@@ -624,7 +624,7 @@ public class AntClassLoader extends ClassLoader implements SubBuildListener {
      * All subpackages are also included.
      *
      * @param packageRoot The root of all packages to be included.
-     *                    Should not be <code>null</code>.
+     *                    Should not be {@code null}.
      */
     public void addSystemPackageRoot(String packageRoot) {
         systemPackages.addElement(packageRoot + (packageRoot.endsWith(".") ? "" : "."));
@@ -637,7 +637,7 @@ public class AntClassLoader extends ClassLoader implements SubBuildListener {
      * All subpackages are also included.
      *
      * @param packageRoot The root of all packages to be included.
-     *                    Should not be <code>null</code>.
+     *                    Should not be {@code null}.
      */
     public void addLoaderPackageRoot(String packageRoot) {
         loaderPackages.addElement(packageRoot + (packageRoot.endsWith(".") ? "" : "."));
@@ -651,7 +651,7 @@ public class AntClassLoader extends ClassLoader implements SubBuildListener {
      * will use this classloader.
      *
      * @param classname The name of the class to be loaded.
-     *                  Must not be <code>null</code>.
+     *                  Must not be {@code null}.
      *
      * @return the required Class object
      *
@@ -678,7 +678,7 @@ public class AntClassLoader extends ClassLoader implements SubBuildListener {
      * loader.
      *
      * @param classname The name of the class to be loaded.
-     *                  Must not be <code>null</code>.
+     *                  Must not be {@code null}.
      *
      * @return the required Class object
      *
@@ -700,9 +700,9 @@ public class AntClassLoader extends ClassLoader implements SubBuildListener {
      * Returns a stream to read the requested resource name.
      *
      * @param name The name of the resource for which a stream is required.
-     *             Must not be <code>null</code>.
+     *             Must not be {@code null}.
      *
-     * @return a stream to the required resource or <code>null</code> if the
+     * @return a stream to the required resource or {@code null} if the
      *         resource cannot be found on the loader's classpath.
      */
     public InputStream getResourceAsStream(String name) {
@@ -741,9 +741,9 @@ public class AntClassLoader extends ClassLoader implements SubBuildListener {
      * Returns a stream to read the requested resource name from this loader.
      *
      * @param name The name of the resource for which a stream is required.
-     *             Must not be <code>null</code>.
+     *             Must not be {@code null}.
      *
-     * @return a stream to the required resource or <code>null</code> if
+     * @return a stream to the required resource or {@code null} if
      *         the resource cannot be found on the loader's classpath.
      */
     private InputStream loadResource(String name) {
@@ -764,9 +764,9 @@ public class AntClassLoader extends ClassLoader implements SubBuildListener {
      * classloader).
      *
      * @param name The name of the system resource to load.
-     *             Must not be <code>null</code>.
+     *             Must not be {@code null}.
      *
-     * @return a stream to the named resource, or <code>null</code> if
+     * @return a stream to the named resource, or {@code null} if
      *         the resource cannot be found.
      */
     private InputStream loadBaseResource(String name) {
@@ -778,11 +778,11 @@ public class AntClassLoader extends ClassLoader implements SubBuildListener {
      * either be a directory or a zip file.
      *
      * @param file the file (directory or jar) in which to search for the
-     *             resource. Must not be <code>null</code>.
+     *             resource. Must not be {@code null}.
      * @param resourceName The name of the resource for which a stream is
-     *                     required. Must not be <code>null</code>.
+     *                     required. Must not be {@code null}.
      *
-     * @return a stream to the required resource or <code>null</code> if
+     * @return a stream to the required resource or {@code null} if
      *         the resource cannot be found in the given file.
      */
     private InputStream getResourceStream(File file, String resourceName) {
@@ -825,7 +825,7 @@ public class AntClassLoader extends ClassLoader implements SubBuildListener {
      *
      * @param resourceName
      *            The name of the resource to check. Must not be
-     *            <code>null</code>.
+     *            {@code null}.
      *
      * @return whether or not the parent classloader should be checked for a
      *         resource before this one is.
@@ -875,9 +875,9 @@ public class AntClassLoader extends ClassLoader implements SubBuildListener {
      * code in a way that is independent of the location of the code.
      *
      * @param name The name of the resource for which a stream is required.
-     *             Must not be <code>null</code>.
+     *             Must not be {@code null}.
      *
-     * @return a URL for reading the resource, or <code>null</code> if the
+     * @return a URL for reading the resource, or {@code null} if the
      *         resource could not be found or the caller doesn't have
      *         adequate privileges to get the resource.
      */
@@ -939,7 +939,7 @@ public class AntClassLoader extends ClassLoader implements SubBuildListener {
      * given name by searching the class loader's classpath.
      *
      * @param name The resource name to search for.
-     *             Must not be <code>null</code>.
+     *             Must not be {@code null}.
      * @return an enumeration of URLs for the resources
      * @exception IOException if I/O errors occurs (can't happen)
      */
@@ -952,7 +952,7 @@ public class AntClassLoader extends ClassLoader implements SubBuildListener {
      * given name by searching the class loader's classpath.
      *
      * @param name The resource name to search for.
-     *             Must not be <code>null</code>.
+     *             Must not be {@code null}.
      * @param parentHasBeenSearched whether ClassLoader.this.parent
      * has been searched - will be true if the method is (indirectly)
      * called from ClassLoader.getResources
@@ -992,11 +992,11 @@ public class AntClassLoader extends ClassLoader implements SubBuildListener {
      * either be a directory or a zip file.
      *
      * @param file The file (directory or jar) in which to search for
-     *             the resource. Must not be <code>null</code>.
+     *             the resource. Must not be {@code null}.
      * @param resourceName The name of the resource for which a stream
-     *                     is required. Must not be <code>null</code>.
+     *                     is required. Must not be {@code null}.
      *
-     * @return a stream to the required resource or <code>null</code> if the
+     * @return a stream to the required resource or {@code null} if the
      *         resource cannot be found in the given file object.
      */
     protected URL getResourceURL(File file, String resourceName) {
@@ -1051,8 +1051,8 @@ public class AntClassLoader extends ClassLoader implements SubBuildListener {
      * ClassNotFoundException.
      *
      * @param classname The name of the class to be loaded.
-     *                  Must not be <code>null</code>.
-     * @param resolve <code>true</code> if all classes upon which this class
+     *                  Must not be {@code null}.
+     * @param resolve {@code true} if all classes upon which this class
      *                depends are to be loaded.
      *
      * @return the required Class object
@@ -1113,7 +1113,7 @@ public class AntClassLoader extends ClassLoader implements SubBuildListener {
      * searching purposes.
      *
      * @param classname The class name in dot format (eg java.lang.Integer).
-     *                  Must not be <code>null</code>.
+     *                  Must not be {@code null}.
      *
      * @return the classname in filesystem format (eg java/lang/Integer.class)
      */
@@ -1295,9 +1295,9 @@ public class AntClassLoader extends ClassLoader implements SubBuildListener {
      * Reads a class definition from a stream.
      *
      * @param stream The stream from which the class is to be read.
-     *               Must not be <code>null</code>.
+     *               Must not be {@code null}.
      * @param classname The name of the class in the stream.
-     *                  Must not be <code>null</code>.
+     *                  Must not be {@code null}.
      * @param container the file or directory containing the class.
      *
      * @return the Class object read from the stream.
@@ -1324,7 +1324,7 @@ public class AntClassLoader extends ClassLoader implements SubBuildListener {
      * Searches for and load a class on the classpath of this class loader.
      *
      * @param name The name of the class to be loaded. Must not be
-     *             <code>null</code>.
+     *             {@code null}.
      *
      * @return the required Class object
      *
@@ -1351,7 +1351,7 @@ public class AntClassLoader extends ClassLoader implements SubBuildListener {
      * Finds a class on the given classpath.
      *
      * @param name The name of the class to be loaded. Must not be
-     *             <code>null</code>.
+     *             {@code null}.
      *
      * @return the required Class object
      *
@@ -1391,7 +1391,7 @@ public class AntClassLoader extends ClassLoader implements SubBuildListener {
      * no parent classloader has been specified.
      *
      * @param name The name of the class to be loaded.
-     *             Must not be <code>null</code>.
+     *             Must not be {@code null}.
      *
      * @return the required Class object
      *
@@ -1536,7 +1536,7 @@ public class AntClassLoader extends ClassLoader implements SubBuildListener {
     }
 
     /**
-     * Returns a <code>String</code> representing this loader.
+     * Returns a {@code String} representing this loader.
      * @return the path that this classloader has.
      */
     public String toString() {

core/src/main/java/jenkins/util/SystemProperties.java

@@ -335,8 +335,8 @@ public class SystemProperties {
      * Determines the integer value of the system property with the
      * specified name, or a default value.
      *
-     * This behaves just like <code>Integer.getInteger(String,Integer)</code>, except that it
-     * also consults the <code>ServletContext</code>'s "init" parameters. If neither exist,
+     * This behaves just like {@code Integer.getInteger(String,Integer)}, except that it
+     * also consults the {@code ServletContext}'s "init" parameters. If neither exist,
      * return the default value.
      *
      * @param   name property name.
@@ -353,8 +353,8 @@ public class SystemProperties {
       * Determines the integer value of the system property with the
       * specified name, or a default value.
       * 
-      * This behaves just like <code>Integer.getInteger(String,Integer)</code>, except that it
-      * also consults the <code>ServletContext</code>'s "init" parameters. If neither exist,
+      * This behaves just like {@code Integer.getInteger(String,Integer)}, except that it
+      * also consults the {@code ServletContext}'s "init" parameters. If neither exist,
       * return the default value. 
       * 
       * @param   name property name.
@@ -399,8 +399,8 @@ public class SystemProperties {
      * Determines the integer value of the system property with the
      * specified name, or a default value.
      *
-     * This behaves just like <code>Long.getLong(String,Long)</code>, except that it
-     * also consults the <code>ServletContext</code>'s "init" parameters. If neither exist,
+     * This behaves just like {@code Long.getLong(String,Long)}, except that it
+     * also consults the {@code ServletContext}'s "init" parameters. If neither exist,
      * return the default value.
      *
      * @param   name property name.
@@ -417,8 +417,8 @@ public class SystemProperties {
       * Determines the integer value of the system property with the
       * specified name, or a default value.
       * 
-      * This behaves just like <code>Long.getLong(String,Long)</code>, except that it
-      * also consults the <code>ServletContext</code>'s "init" parameters. If neither exist,
+      * This behaves just like {@code Long.getLong(String,Long)}, except that it
+      * also consults the {@code ServletContext}'s "init" parameters. If neither exist,
       * return the default value. 
       * 
       * @param   name property name.

core/src/main/java/jenkins/util/io/LinesStream.java

@@ -41,7 +41,7 @@ import javax.annotation.Nullable;
 /**
  * Represents a stream over the lines of a text file.
  * <p>
- * Although <code>LinesStream</code> implements {@link java.lang.Iterable}, it
+ * Although {@code LinesStream} implements {@link java.lang.Iterable}, it
  * is intended to be first used to initialize a resource in a try-with-resources
  * statement and then iterated, as in:
  * <pre>
@@ -53,10 +53,10 @@ import javax.annotation.Nullable;
  * </pre>
  * This pattern ensures that the underlying file handle is closed properly.
  * <p>
- * Like {@link java.nio.file.DirectoryStream}, <code>LinesStream</code> supports
- * creating at most one <code>Iterator</code>. Invoking {@link #iterator()} to
- * obtain a second or subsequent <code>Iterator</code> throws
- * <code>IllegalStateException</code>.
+ * Like {@link java.nio.file.DirectoryStream}, {@code LinesStream} supports
+ * creating at most one {@code Iterator}. Invoking {@link #iterator()} to
+ * obtain a second or subsequent {@code Iterator} throws
+ * {@code IllegalStateException}.
  *
  * @since 2.111
  */
@@ -67,10 +67,10 @@ public class LinesStream implements Closeable, Iterable<String> {
     private transient @Nullable Iterator<String> iterator;
 
     /**
-     * Opens the text file at <code>path</code> for reading using charset
+     * Opens the text file at {@code path} for reading using charset
      * {@link java.nio.charset.StandardCharsets#UTF_8}.
      * @param path Path to the file to open for reading.
-     * @throws IOException if the file at <code>path</code> cannot be opened for
+     * @throws IOException if the file at {@code path} cannot be opened for
      * reading.
      */
     public LinesStream(@Nonnull Path path) throws IOException {

core/src/main/java/jenkins/util/java/JavaUtils.java

@@ -68,7 +68,7 @@ public class JavaUtils {
      * Returns the JVM's current version as a {@link String}.
      * See https://openjdk.java.net/jeps/223 for the expected format.
      * <ul>
-     *     <li>Until Java 8 included, the expected format should be starting with <code>1.x</code></li>
+     *     <li>Until Java 8 included, the expected format should be starting with {@code 1.x}</li>
      *     <li>Starting with Java 9, cf. JEP-223 linked above, the version got simplified in 9.x, 10.x, etc.</li>
      * </ul>
      *

core/src/main/java/jenkins/util/xml/XMLUtils.java

@@ -49,10 +49,10 @@ public final class XMLUtils {
     /**
      * Transform the source to the output in a manner that is protected against XXE attacks.
      * If the transform can not be completed safely then an IOException is thrown.
-     * Note - to turn off safety set the system property <code>disableXXEPrevention</code> to <code>true</code>.
-     * @param source The XML input to transform. - This should be a <code>StreamSource</code> or a
-     *               <code>SAXSource</code> in order to be able to prevent XXE attacks.
-     * @param out The Result of transforming the <code>source</code>.
+     * Note - to turn off safety set the system property {@code disableXXEPrevention} to {@code true}.
+     * @param source The XML input to transform. - This should be a {@code StreamSource} or a
+     *               {@code SAXSource} in order to be able to prevent XXE attacks.
+     * @param out The Result of transforming the {@code source}.
      */
     public static void safeTransform(@Nonnull Source source, @Nonnull Result out) throws TransformerException,
             SAXException {
@@ -196,7 +196,7 @@ public final class XMLUtils {
     /**
      * potentially unsafe XML transformation.
      * @param source The XML input to transform.
-     * @param out The Result of transforming the <code>source</code>.
+     * @param out The Result of transforming the {@code source}.
      */
     private static void _transform(Source source, Result out) throws TransformerException {
         TransformerFactory factory = TransformerFactory.newInstance();

core/src/test/java/jenkins/plugins/DetachedPluginsUtilTest.java

@@ -44,7 +44,7 @@ public class DetachedPluginsUtilTest {
     }
 
     /**
-     * Checks the format of the <code>/jenkins/split-plugins.txt</code> file has maximum 4 columns.
+     * Checks the format of the {@code /jenkins/split-plugins.txt} file has maximum 4 columns.
      */
     @Test
     public void checkSplitPluginsFileFormat() throws IOException {

test/src/test/java/hudson/model/ApiTest.java

@@ -77,7 +77,7 @@ public class ApiTest {
     }
 
     /**
-     * Test that calling the XML API with the XPath <code>document</code> function fails.
+     * Test that calling the XML API with the XPath {@code document} function fails.
      *
      * @throws Exception if so
      */