From ae542e8a315b91ae4b52025a8822b1a4cb320abb Mon Sep 17 00:00:00 2001
From: Debian Java Maintainers <pkg-java-maintainers@lists.alioth.debian.org>
Date: Thu, 28 Feb 2019 14:20:34 +0100
Subject: java9

Gbp-Pq: Name java9.patch
---
 pom.xml                                            | 12 +++-
 .../openhft/chronicle/bytes/NativeBytesStore.java  | 79 +++++++++++++++++++---
 2 files changed, 77 insertions(+), 14 deletions(-)

diff --git a/pom.xml b/pom.xml
index e149729..c21d589 100755
--- a/pom.xml
+++ b/pom.xml
@@ -111,10 +111,16 @@
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-compiler-plugin</artifactId>
                 <configuration>
-                    <compilerArgument>-Xlint:deprecation</compilerArgument>
-                    <source>1.8</source>
-                    <target>1.8</target>
+                    <source>1.9</source>
+                    <target>1.9</target>
+                    <fork>true</fork>
                     <encoding>UTF-8</encoding>
+                    <compilerArgs>
+                        <arg>-Xlint:deprecation</arg>
+                        <arg>--add-exports=java.base/jdk.internal.ref=ALL-UNNAMED</arg>
+                        <arg>--add-exports=java.base/sun.nio.ch=ALL-UNNAMED</arg>
+                        <arg>--add-exports=jdk.unsupported/sun.misc=ALL-UNNAMED</arg>
+                    </compilerArgs>
                 </configuration>
             </plugin>
             <!--
diff --git a/src/main/java/net/openhft/chronicle/bytes/NativeBytesStore.java b/src/main/java/net/openhft/chronicle/bytes/NativeBytesStore.java
index dc970df..b88ebca 100755
--- a/src/main/java/net/openhft/chronicle/bytes/NativeBytesStore.java
+++ b/src/main/java/net/openhft/chronicle/bytes/NativeBytesStore.java
@@ -19,17 +19,22 @@ package net.openhft.chronicle.bytes;
 import net.openhft.chronicle.core.*;
 import net.openhft.chronicle.core.annotation.ForceInline;
 import net.openhft.chronicle.core.io.IORuntimeException;
+import net.openhft.chronicle.core.Jvm;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
-import sun.misc.Cleaner;
+import java.lang.ref.Cleaner;
 import sun.nio.ch.DirectBuffer;
+import sun.misc.Unsafe;
 
 import java.lang.reflect.Field;
+import java.lang.reflect.Method;
 import java.nio.BufferOverflowException;
 import java.nio.BufferUnderflowException;
 import java.nio.ByteBuffer;
+import java.security.AccessController;
+import java.security.PrivilegedAction;
 
 @SuppressWarnings("sunapi")
 public class NativeBytesStore<Underlying>
@@ -37,11 +42,22 @@ public class NativeBytesStore<Underlying>
     private static final long MEMORY_MAPPED_SIZE = 128 << 10;
     private static final Logger LOGGER = LoggerFactory.getLogger(NativeBytesStore.class);
     private static final Field BB_ADDRESS, BB_CAPACITY;
+    private static final Unsafe UNSAFE;
+    private static final Method invokeCleaner;
 
     static {
         Class directBB = ByteBuffer.allocateDirect(0).getClass();
         BB_ADDRESS = Jvm.getField(directBB, "address");
         BB_CAPACITY = Jvm.getField(directBB, "capacity");
+        UNSAFE = getUnsafe();
+        Method tmpCleaner;
+        try {
+            tmpCleaner = UNSAFE.getClass().getDeclaredMethod("invokeCleaner", ByteBuffer.class);
+            tmpCleaner.setAccessible(true);
+        } catch (Throwable t) {
+            tmpCleaner = null;
+        }
+        invokeCleaner = tmpCleaner;
     }
 
     @Nullable
@@ -52,12 +68,13 @@ public class NativeBytesStore<Underlying>
     protected long address;
     long maximumLimit;
     @Nullable
-    private Cleaner cleaner;
+    private final static Cleaner cleaner = Cleaner.create();
+    private Cleaner.Cleanable cleanable;
     private final ReferenceCounter refCount = ReferenceCounter.onReleased(this::performRelease);
     private boolean elastic;
     @Nullable
     private Underlying underlyingObject;
-    private Error releasedHere;
+    Error releasedHere;
 
     private NativeBytesStore() {
     }
@@ -75,7 +92,11 @@ public class NativeBytesStore<Underlying>
             long address, long maximumLimit, @Nullable Runnable deallocator, boolean elastic) {
         setAddress(address);
         this.maximumLimit = maximumLimit;
-        cleaner = deallocator == null ? null : Cleaner.create(this, deallocator);
+        if (deallocator != null) {
+            cleanable = cleaner.register(this, deallocator);
+        } else {
+            cleanable = null;
+        }
         underlyingObject = null;
         this.elastic = elastic;
     }
@@ -141,14 +162,27 @@ public class NativeBytesStore<Underlying>
         underlyingObject = (Underlying) bb;
         setAddress(((DirectBuffer) bb).address());
         this.maximumLimit = bb.capacity();
-        cleaner = ((DirectBuffer) bb).cleaner();
+        if (invokeCleaner != null) {
+            cleanable = cleaner.register(this, new Runnable() {
+                @Override
+                public void run() {
+                    try {
+                        invokeCleaner.invoke(UNSAFE, bb);
+                    } catch (Throwable e) {
+                        
+                    }
+                }
+            });
+        } else {
+            cleanable = null;
+        }
     }
 
     public void uninit() {
         underlyingObject = null;
         address = 0;
         maximumLimit = 0;
-        cleaner = null;
+        cleanable = null;
     }
 
     @NotNull
@@ -423,7 +457,7 @@ public class NativeBytesStore<Underlying>
     public void write(
             long offsetInRDO, @NotNull ByteBuffer bytes, int offset, int length) {
         if (bytes.isDirect()) {
-            memory.copyMemory(((DirectBuffer) bytes).address(),
+            memory.copyMemory(((DirectBuffer) bytes).address() + offset,
                     address + translate(offsetInRDO), length);
 
         } else {
@@ -450,19 +484,21 @@ public class NativeBytesStore<Underlying>
 
     @Override
     public long address(long offset) throws UnsupportedOperationException {
-        if (offset < start() || offset >= capacity())
+        if (offset < start() || offset > capacity())
             throw new IllegalArgumentException();
         return address + translate(offset);
     }
 
     private void performRelease() {
+        memory = null;
         if (refCount.get() > 0) {
             LOGGER.info("NativeBytesStore discarded without releasing ", createdHere);
         }
 
-        memory = null;
-        if (cleaner != null)
-            cleaner.clean();
+        if (releasedHere == null)
+            releasedHere = new Error();
+        if (cleanable != null)
+            cleanable.clean();
     }
 
     @NotNull
@@ -626,4 +662,25 @@ public class NativeBytesStore<Underlying>
         }
 
     }
+
+    private static Unsafe getUnsafe() {
+        if (System.getSecurityManager() != null) {
+            return AccessController.doPrivileged(new PrivilegedAction<Unsafe>() {
+                public Unsafe run() {
+                    return getUnsafe0();
+                }
+            });
+        }
+        return getUnsafe0();
+    }
+
+    private static Unsafe getUnsafe0() {
+        try {
+            Field theUnsafe = Unsafe.class.getDeclaredField("theUnsafe");
+            theUnsafe.setAccessible(true);
+            return (Unsafe) theUnsafe.get(null);
+        } catch (Throwable t) {
+            throw new RuntimeException("JDK did not allow accessing unsafe", t);
+        }
+    }
 }
-- 
cgit v1.2.3