am c0ce6c42: Merge "Reduce risk of memory corruption due to finalization."

* commit 'c0ce6c422cfe089e7a8e209ac924e37bed3ca770':
  Reduce risk of memory corruption due to finalization.

graphics/java/android/graphics/Interpolator.java

@@ -147,11 +147,12 @@ public class Interpolator {
     @Override
     protected void finalize() throws Throwable {
         nativeDestructor(native_instance);
+        native_instance = 0;  // Other finalizers can still call us.
     }
     
     private int mValueCount;
     private int mFrameCount;
-    private final long native_instance;
+    private long native_instance;
 
     private static native long nativeConstructor(int valueCount, int frameCount);
     private static native void nativeDestructor(long native_instance);

graphics/java/android/graphics/MaskFilter.java

@@ -25,6 +25,7 @@ public class MaskFilter {
 
     protected void finalize() throws Throwable {
         nativeDestructor(native_instance);
+        native_instance = 0;  // Other finalizers can still call us.
     }
 
     private static native void nativeDestructor(long native_filter);

graphics/java/android/graphics/Matrix.java

@@ -827,6 +827,7 @@ public class Matrix {
     protected void finalize() throws Throwable {
         try {
             finalizer(native_instance);
+            native_instance = 0;  // Other finalizers can still call us.
         } finally {
             super.finalize();
         }

graphics/java/android/graphics/NinePatch.java

@@ -71,7 +71,7 @@ public class NinePatch {
      *
      * @hide
      */
-    public final long mNativeChunk;
+    public long mNativeChunk;
 
     private Paint mPaint;
     private String mSrcName;
@@ -121,6 +121,7 @@ public class NinePatch {
             if (mNativeChunk != 0) {
                 // only attempt to destroy correctly initilized chunks
                 nativeFinalize(mNativeChunk);
+                mNativeChunk = 0;
             }
         } finally {
             super.finalize();

graphics/java/android/graphics/Paint.java

@@ -2435,6 +2435,7 @@ public class Paint {
     protected void finalize() throws Throwable {
         try {
             finalizer(mNativePaint);
+            mNativePaint = 0;
         } finally {
             super.finalize();
         }

graphics/java/android/graphics/Path.java

@@ -27,7 +27,7 @@ public class Path {
     /**
      * @hide
      */
-    public final long mNativePath;
+    public long mNativePath;
 
     /**
      * @hide
@@ -746,6 +746,7 @@ public class Path {
     protected void finalize() throws Throwable {
         try {
             finalizer(mNativePath);
+            mNativePath = 0;  //  Other finalizers can still call us.
         } finally {
             super.finalize();
         }

graphics/java/android/graphics/PathEffect.java

@@ -25,6 +25,7 @@ public class PathEffect {
 
     protected void finalize() throws Throwable {
         nativeDestructor(native_instance);
+        native_instance = 0;  // Other finalizers can still call us.
     }
 
     private static native void nativeDestructor(long native_patheffect);

graphics/java/android/graphics/PathMeasure.java

@@ -142,6 +142,7 @@ public class PathMeasure {
 
     protected void finalize() throws Throwable {
         native_destroy(native_instance);
+        native_instance = 0;  // Other finalizers can still call us.
     }
 
     private static native long native_create(long native_path, boolean forceClosed);
@@ -154,6 +155,6 @@ public class PathMeasure {
     private static native boolean native_nextContour(long native_instance);
     private static native void native_destroy(long native_instance);
 
-    /* package */private final long native_instance;
+    /* package */private long native_instance;
 }
 

graphics/java/android/graphics/Picture.java

@@ -29,7 +29,7 @@ import java.io.OutputStream;
  */
 public class Picture {
     private Canvas mRecordingCanvas;
-    private final long mNativePicture;
+    private long mNativePicture;
 
     private static final int WORKING_STREAM_STORAGE = 16 * 1024;
 
@@ -60,6 +60,7 @@ public class Picture {
     protected void finalize() throws Throwable {
         try {
             nativeDestructor(mNativePicture);
+            mNativePicture = 0;
         } finally {
             super.finalize();
         }

graphics/java/android/graphics/Region.java

@@ -30,7 +30,7 @@ public class Region implements Parcelable {
     /**
      * @hide
      */
-    public final long mNativeRegion;
+    public long mNativeRegion;
 
     // the native values for these must match up with the enum in SkRegion.h
     public enum Op {
@@ -380,6 +380,7 @@ public class Region implements Parcelable {
     protected void finalize() throws Throwable {
         try {
             nativeDestructor(mNativeRegion);
+            mNativeRegion = 0;
         } finally {
             super.finalize();
         }

graphics/java/android/graphics/RegionIterator.java

@@ -43,12 +43,13 @@ public class RegionIterator {
     
     protected void finalize() throws Throwable {
         nativeDestructor(mNativeIter);
+        mNativeIter = 0;  // Other finalizers can still call us.
     }
     
     private static native long nativeConstructor(long native_region);
     private static native void nativeDestructor(long native_iter);
     private static native boolean nativeNext(long native_iter, Rect r);
 
-    private final long mNativeIter;
+    private long mNativeIter;
 }
 

graphics/java/android/graphics/Shader.java

@@ -91,6 +91,7 @@ public class Shader {
             super.finalize();
         } finally {
             nativeDestructor(native_instance);
+            native_instance = 0;  // Other finalizers can still call us.
         }
     }
 

graphics/java/android/graphics/Typeface.java

@@ -358,6 +358,7 @@ public class Typeface {
     protected void finalize() throws Throwable {
         try {
             nativeUnref(native_instance);
+            native_instance = 0;  // Other finalizers can still call us.
         } finally {
             super.finalize();
         }