diff --git a/core/src/main/java/hudson/PluginManager.java b/core/src/main/java/hudson/PluginManager.java
index be83e07456..fdee127447 100644
--- a/core/src/main/java/hudson/PluginManager.java
+++ b/core/src/main/java/hudson/PluginManager.java
@@ -1719,6 +1719,7 @@ public abstract class PluginManager extends AbstractModelObject implements OnMas
                 if (toInstall.isForNewerHudson()) {
                     LOGGER.log(WARNING, "{0}@{1} was built for a newer Jenkins", new Object[] {toInstall.name, toInstall.version});
                 }
+                // TODO check Java dependency
                 jobs.add(toInstall.deploy(true));
             } else if (pw.isOlderThan(requestedPlugin.getValue())) { // upgrade
                 UpdateSite.Plugin toInstall = uc.getPlugin(requestedPlugin.getKey());
@@ -1736,6 +1737,7 @@ public abstract class PluginManager extends AbstractModelObject implements OnMas
                 if (toInstall.isForNewerHudson()) {
                     LOGGER.log(WARNING, "{0}@{1} was built for a newer Jenkins", new Object[] {toInstall.name, toInstall.version});
                 }
+                // TODO check Java dependency
                 if (!toInstall.isCompatibleWithInstalledVersion()) {
                     LOGGER.log(WARNING, "{0}@{1} is incompatible with the installed @{2}", new Object[] {toInstall.name, toInstall.version, pw.getVersion()});
                 }
diff --git a/core/src/main/java/hudson/model/UpdateSite.java b/core/src/main/java/hudson/model/UpdateSite.java
index 34a8c04b2d..0812aa7c44 100644
--- a/core/src/main/java/hudson/model/UpdateSite.java
+++ b/core/src/main/java/hudson/model/UpdateSite.java
@@ -1108,8 +1108,11 @@ public class UpdateSite {
         }
 
         /**
+         * Returns true iff the plugin declares a minimum Java version and it's newer than what the Jenkins master is running on.
+         *
+         * @return true iff the plugin declares a minimum Java version and it's newer than what the Jenkins master is running on.
+         *
          * @since TODO
-         * @return
          */
         public boolean isForNewerJava() {
             try {
@@ -1135,8 +1138,11 @@ public class UpdateSite {
         }
 
         /**
+         * Returns the minimum Java version needed to use the plugin and all its dependencies.
+         *
+         * @return the minimum Java version needed to use the plugin and all its dependencies.
+         *
          * @since TODO
-         * @return
          */
         public VersionNumber getNeededDependenciesRequiredJava() {
             VersionNumber versionNumber = null;
@@ -1173,6 +1179,13 @@ public class UpdateSite {
             });
         }
 
+        /**
+         * Returns true iff this plugin or any of its dependencies require a newer Java than Jenkins is running on.
+         *
+         * @return true iff this plugin or any of its dependencies require a newer Java than Jenkins is running on.
+         *
+         * @since TODO
+         */
         public boolean isNeededDependenciesForNewerJava() {
             for (Plugin p: getNeededDependencies()) {
                 if (p.isForNewerJava() || p.isNeededDependenciesForNewerJava()) {
diff --git a/core/src/main/resources/hudson/PluginManager/_table.css b/core/src/main/resources/hudson/PluginManager/_table.css
index 90b80cfd19..9107c2be8b 100644
--- a/core/src/main/resources/hudson/PluginManager/_table.css
+++ b/core/src/main/resources/hudson/PluginManager/_table.css
@@ -10,4 +10,4 @@
 }
 .compatWarning, .securityWarning {
     font-weight: bold;
-}
\ No newline at end of file
+}