Add more missing type arguments for generic class Class<T>

Change-Id: I3ff55e9443074133fa19cbe4818c82d8be27e467
diff --git a/gerrit-httpd/src/main/java/com/google/gerrit/httpd/plugins/PluginServletContext.java b/gerrit-httpd/src/main/java/com/google/gerrit/httpd/plugins/PluginServletContext.java
index a5ba2e8..53b49a4 100644
--- a/gerrit-httpd/src/main/java/com/google/gerrit/httpd/plugins/PluginServletContext.java
+++ b/gerrit-httpd/src/main/java/com/google/gerrit/httpd/plugins/PluginServletContext.java
@@ -39,7 +39,7 @@
     return (ServletContext)
         Proxy.newProxyInstance(
             PluginServletContext.class.getClassLoader(),
-            new Class[] {ServletContext.class, API.class},
+            new Class<?>[] {ServletContext.class, API.class},
             new Handler(plugin, contextPath));
   }
 
diff --git a/gerrit-launcher/src/main/java/com/google/gerrit/launcher/GerritLauncher.java b/gerrit-launcher/src/main/java/com/google/gerrit/launcher/GerritLauncher.java
index eecaf36..24e3b30 100644
--- a/gerrit-launcher/src/main/java/com/google/gerrit/launcher/GerritLauncher.java
+++ b/gerrit-launcher/src/main/java/com/google/gerrit/launcher/GerritLauncher.java
@@ -200,7 +200,8 @@
       if ((main.getModifiers() & Modifier.STATIC) == Modifier.STATIC) {
         res = main.invoke(null, new Object[] {argv});
       } else {
-        res = main.invoke(clazz.getConstructor(new Class[] {}).newInstance(), new Object[] {argv});
+        res =
+            main.invoke(clazz.getConstructor(new Class<?>[] {}).newInstance(), new Object[] {argv});
       }
     } catch (InvocationTargetException ite) {
       if (ite.getCause() instanceof Exception) {
diff --git a/gerrit-server/src/main/java/com/google/gerrit/metrics/proc/OperatingSystemMXBeanProvider.java b/gerrit-server/src/main/java/com/google/gerrit/metrics/proc/OperatingSystemMXBeanProvider.java
index cbd2378..7256e8c 100644
--- a/gerrit-server/src/main/java/com/google/gerrit/metrics/proc/OperatingSystemMXBeanProvider.java
+++ b/gerrit-server/src/main/java/com/google/gerrit/metrics/proc/OperatingSystemMXBeanProvider.java
@@ -52,10 +52,10 @@
   private OperatingSystemMXBeanProvider(OperatingSystemMXBean sys)
       throws ReflectiveOperationException {
     this.sys = sys;
-    getProcessCpuTime = sys.getClass().getMethod("getProcessCpuTime", new Class[] {});
+    getProcessCpuTime = sys.getClass().getMethod("getProcessCpuTime", new Class<?>[] {});
     getProcessCpuTime.setAccessible(true);
     getOpenFileDescriptorCount =
-        sys.getClass().getMethod("getOpenFileDescriptorCount", new Class[] {});
+        sys.getClass().getMethod("getOpenFileDescriptorCount", new Class<?>[] {});
     getOpenFileDescriptorCount.setAccessible(true);
   }