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8193507: [REDO] Startup regression due to JDK-8185582

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Co-authored-by: Xueming Shen <xueming.shen@oracle.com>
Reviewed-by: alanb, rriggs
This commit is contained in:
Claes Redestad 2017-12-14 16:05:08 +01:00
parent 8374bf4e3c
commit a9a271179d
4 changed files with 170 additions and 121 deletions
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81
src/java.base/share/classes/java/util/zip/Deflater.java
View File

@ -25,6 +25,9 @@
package java.util.zip;
import java.lang.ref.Cleaner.Cleanable;
import jdk.internal.ref.CleanerFactory;
/**
* This class provides support for general purpose compression using the
* popular ZLIB compression library. The ZLIB compression library was
@ -88,7 +91,7 @@ package java.util.zip;
public class Deflater {
private final ZStreamRef zsRef;
private final DeflaterZStreamRef zsRef;
private byte[] buf = new byte[0];
private int off, len;
private int level, strategy;
@ -183,9 +186,8 @@ public class Deflater {
public Deflater(int level, boolean nowrap) {
this.level = level;
this.strategy = DEFAULT_STRATEGY;
this.zsRef = ZStreamRef.get(this,
() -> init(level, DEFAULT_STRATEGY, nowrap),
Deflater::end);
this.zsRef = DeflaterZStreamRef.get(this,
init(level, DEFAULT_STRATEGY, nowrap));
}
/**
@ -591,4 +593,75 @@ public class Deflater {
private static native int getAdler(long addr);
private static native void reset(long addr);
private static native void end(long addr);
/**
* A reference to the native zlib's z_stream structure. It also
* serves as the "cleaner" to clean up the native resource when
* the Deflater is ended, closed or cleaned.
*/
static class DeflaterZStreamRef implements Runnable {
private long address;
private final Cleanable cleanable;
private DeflaterZStreamRef(Deflater owner, long addr) {
this.cleanable = (owner != null) ? CleanerFactory.cleaner().register(owner, this) : null;
this.address = addr;
}
long address() {
return address;
}
void clean() {
cleanable.clean();
}
public synchronized void run() {
long addr = address;
address = 0;
if (addr != 0) {
end(addr);
}
}
/*
* If {@code Deflater} has been subclassed and the {@code end} method is
* overridden, uses {@code finalizer} mechanism for resource cleanup. So
* {@code end} method can be called when the {@code Deflater} is unreachable.
* This mechanism will be removed when the {@code finalize} method is
* removed from {@code Deflater}.
*/
static DeflaterZStreamRef get(Deflater owner, long addr) {
Class<?> clz = owner.getClass();
while (clz != Deflater.class) {
try {
clz.getDeclaredMethod("end");
return new FinalizableZStreamRef(owner, addr);
} catch (NoSuchMethodException nsme) {}
clz = clz.getSuperclass();
}
return new DeflaterZStreamRef(owner, addr);
}
private static class FinalizableZStreamRef extends DeflaterZStreamRef {
final Deflater owner;
FinalizableZStreamRef (Deflater owner, long addr) {
super(null, addr);
this.owner = owner;
}
@Override
void clean() {
run();
}
@Override
@SuppressWarnings("deprecation")
protected void finalize() {
owner.end();
}
}
}
}

78
src/java.base/share/classes/java/util/zip/Inflater.java
View File

@ -25,6 +25,9 @@
package java.util.zip;
import java.lang.ref.Cleaner.Cleanable;
import jdk.internal.ref.CleanerFactory;
/**
* This class provides support for general purpose decompression using the
* popular ZLIB compression library. The ZLIB compression library was
@ -88,7 +91,7 @@ package java.util.zip;
public class Inflater {
private final ZStreamRef zsRef;
private final InflaterZStreamRef zsRef;
private byte[] buf = defaultBuf;
private int off, len;
private boolean finished;
@ -115,7 +118,7 @@ public class Inflater {
* @param nowrap if true then support GZIP compatible compression
*/
public Inflater(boolean nowrap) {
this.zsRef = ZStreamRef.get(this, () -> init(nowrap), Inflater::end);
this.zsRef = InflaterZStreamRef.get(this, init(nowrap));
}
/**
@ -428,4 +431,75 @@ public class Inflater {
private static native int getAdler(long addr);
private static native void reset(long addr);
private static native void end(long addr);
/**
* A reference to the native zlib's z_stream structure. It also
* serves as the "cleaner" to clean up the native resource when
* the Inflater is ended, closed or cleaned.
*/
static class InflaterZStreamRef implements Runnable {
private long address;
private final Cleanable cleanable;
private InflaterZStreamRef(Inflater owner, long addr) {
this.cleanable = (owner != null) ? CleanerFactory.cleaner().register(owner, this) : null;
this.address = addr;
}
long address() {
return address;
}
void clean() {
cleanable.clean();
}
public synchronized void run() {
long addr = address;
address = 0;
if (addr != 0) {
end(addr);
}
}
/*
* If {@code Inflater} has been subclassed and the {@code end} method is
* overridden, uses {@code finalizer} mechanism for resource cleanup. So
* {@code end} method can be called when the {@code Inflater} is unreachable.
* This mechanism will be removed when the {@code finalize} method is
* removed from {@code Inflater}.
*/
static InflaterZStreamRef get(Inflater owner, long addr) {
Class<?> clz = owner.getClass();
while (clz != Inflater.class) {
try {
clz.getDeclaredMethod("end");
return new FinalizableZStreamRef(owner, addr);
} catch (NoSuchMethodException nsme) {}
clz = clz.getSuperclass();
}
return new InflaterZStreamRef(owner, addr);
}
private static class FinalizableZStreamRef extends InflaterZStreamRef {
final Inflater owner;
FinalizableZStreamRef(Inflater owner, long addr) {
super(null, addr);
this.owner = owner;
}
@Override
void clean() {
run();
}
@Override
@SuppressWarnings("deprecation")
protected void finalize() {
owner.end();
}
}
}
}

113
src/java.base/share/classes/java/util/zip/ZStreamRef.java
View File

@ -1,113 +0,0 @@
/*
* Copyright (c) 2009, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package java.util.zip;
import java.util.function.LongConsumer;
import java.util.function.LongSupplier;
import java.lang.ref.Cleaner.Cleanable;
import jdk.internal.ref.CleanerFactory;
/**
* A reference to the native zlib's z_stream structure. It also
* serves as the "cleaner" to clean up the native resource when
* the deflater or infalter is ended, closed or cleaned.
*/
class ZStreamRef implements Runnable {
private LongConsumer end;
private long address;
private final Cleanable cleanable;
private ZStreamRef (Object owner, LongSupplier addr, LongConsumer end) {
this.cleanable = CleanerFactory.cleaner().register(owner, this);
this.end = end;
this.address = addr.getAsLong();
}
long address() {
return address;
}
void clean() {
cleanable.clean();
}
public synchronized void run() {
long addr = address;
address = 0;
if (addr != 0) {
end.accept(addr);
}
}
private ZStreamRef (LongSupplier addr, LongConsumer end) {
this.cleanable = null;
this.end = end;
this.address = addr.getAsLong();
}
/*
* If {@code Inflater/Deflater} has been subclassed and the {@code end} method
* is overridden, uses {@code finalizer} mechanism for resource cleanup. So
* {@code end} method can be called when the {@code Inflater/Deflater} is
* unreachable. This mechanism will be removed when the {@code finalize} method
* is removed from {@code Inflater/Deflater}.
*/
static ZStreamRef get(Object owner, LongSupplier addr, LongConsumer end) {
Class<?> clz = owner.getClass();
while (clz != Deflater.class && clz != Inflater.class) {
try {
clz.getDeclaredMethod("end");
return new FinalizableZStreamRef(owner, addr, end);
} catch (NoSuchMethodException nsme) {}
clz = clz.getSuperclass();
}
return new ZStreamRef(owner, addr, end);
}
private static class FinalizableZStreamRef extends ZStreamRef {
final Object owner;
FinalizableZStreamRef (Object owner, LongSupplier addr, LongConsumer end) {
super(addr, end);
this.owner = owner;
}
@Override
void clean() {
run();
}
@Override
@SuppressWarnings("deprecation")
protected void finalize() {
if (owner instanceof Inflater)
((Inflater)owner).end();
else
((Deflater)owner).end();
}
}
}

19
src/java.base/share/classes/java/util/zip/ZipFile.java
View File

@ -412,6 +412,21 @@ class ZipFile implements ZipConstants, Closeable {
}
}
private static class InflaterCleanupAction implements Runnable {
private final Inflater inf;
private final CleanableResource res;
InflaterCleanupAction(Inflater inf, CleanableResource res) {
this.inf = inf;
this.res = res;
}
@Override
public void run() {
res.releaseInflater(inf);
}
}
private class ZipFileInflaterInputStream extends InflaterInputStream {
private volatile boolean closeRequested;
private boolean eof = false;
@ -427,8 +442,8 @@ class ZipFile implements ZipConstants, Closeable {
Inflater inf, int size) {
super(zfin, inf, size);
this.cleanable = CleanerFactory.cleaner().register(this,
() -> res.releaseInflater(inf));
}
new InflaterCleanupAction(inf, res));
}
public void close() throws IOException {
if (closeRequested)