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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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