Merge "PreloadCheck: Add some comments"

tools/preload-check/device/src/com/android/preload/check/Initialized.java

@@ -16,6 +16,9 @@
 
 package com.android.preload.check;
 
+/**
+ * Test that the given boot classpath class is initialized.
+ */
 public class Initialized {
     public static void main(String[] args) throws Exception {
         Util.assertInitialized(args[0], null);

tools/preload-check/device/src/com/android/preload/check/IntegrityCheck.java

@@ -16,13 +16,16 @@
 
 package com.android.preload.check;
 
+/**
+ * Test that a helper class is first seen as uninitialized, then initialized after forced.
+ */
 public class IntegrityCheck {
     public static void main(String[] args) throws Exception {
         ClassLoader loader = IntegrityCheck.class.getClassLoader();
 
         Util.assertNotInitialized("com.android.preload.check.IntegrityCheck$StatusHelper", loader);
 
-        Class<?> klass = Class.forName("com.android.preload.check.IntegrityCheck$StatusHelper",
+        Class.forName("com.android.preload.check.IntegrityCheck$StatusHelper",
                 /* initialize */ true, loader);
 
         Util.assertInitialized("com.android.preload.check.IntegrityCheck$StatusHelper", loader);
@@ -30,6 +33,7 @@ public class IntegrityCheck {
         System.out.println("OK");
     }
 
+    @SuppressWarnings("unused")
     private static class StatusHelper {
         private final static Object defer = new Object();
     }

tools/preload-check/device/src/com/android/preload/check/NotInitialized.java

@@ -16,6 +16,9 @@
 
 package com.android.preload.check;
 
+/**
+ * Test that the given boot classpath class is not initialized.
+ */
 public class NotInitialized {
     public static void main(String[] args) throws Exception {
         Util.assertNotInitialized(args[0], null);

tools/preload-check/device/src/com/android/preload/check/NotInitializedRegex.java

@@ -23,7 +23,15 @@ import java.util.Enumeration;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
+/**
+ * Test boot classpath classes that satisfy a given regular expression to be not initialized.
+ * Optionally check that at least one class was matched.
+ */
 public class NotInitializedRegex {
+    /**
+     * First arg (mandatory): regular exception. Second arg (optional): boolean to denote a
+     * required match.
+     */
     public static void main(String[] args) throws Exception {
         Matcher m = Pattern.compile(args[0]).matcher("");
         boolean requiresMatch = args.length > 1 ? Boolean.parseBoolean(args[1]) : false;