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src/java.base/share/classes/java/nio/Bits.java

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rev 51055 : 8207235: ManagementFactory.getPlatformMXBeans(BufferPoolMXBean.class) throws NPE
Reviewed-by: alanb

@@ -205,19 +205,11 @@
         long reservedMem = RESERVED_MEMORY.addAndGet(-size);
         long totalCap = TOTAL_CAPACITY.addAndGet(-cap);
         assert cnt >= 0 && reservedMem >= 0 && totalCap >= 0;
     }
 
-    // -- Monitoring of direct buffer usage --
-
-    static {
-        // setup access to this package in SharedSecrets
-        SharedSecrets.setJavaNioAccess(
-            new JavaNioAccess() {
-                @Override
-                public JavaNioAccess.BufferPool getDirectBufferPool() {
-                    return new JavaNioAccess.BufferPool() {
+    static final JavaNioAccess.BufferPool BUFFER_POOL = new JavaNioAccess.BufferPool() {
                         @Override
                         public String getName() {
                             return "direct";
                         }
                         @Override

@@ -231,21 +223,10 @@
                         @Override
                         public long getMemoryUsed() {
                             return Bits.RESERVED_MEMORY.get();
                         }
                     };
-                }
-                @Override
-                public ByteBuffer newDirectByteBuffer(long addr, int cap, Object ob) {
-                    return new DirectByteBuffer(addr, cap, ob);
-                }
-                @Override
-                public void truncate(Buffer buf) {
-                    buf.truncate();
-                }
-        });
-    }
 
     // These numbers represent the point at which we have empirically
     // determined that the average cost of a JNI call exceeds the expense
     // of an element by element copy.  These numbers may change over time.
     static final int JNI_COPY_TO_ARRAY_THRESHOLD   = 6;
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