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This commit is contained in:
Norman Maurer 2021-01-27 14:30:42 +01:00
parent 772eade800
commit d4dea6779a
1 changed files with 19 additions and 14 deletions
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33
codec/src/main/java/io/netty/handler/codec/compression/Java11ZlibUtils.java
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@ -17,6 +17,8 @@ package io.netty.handler.codec.compression;
import io.netty.util.internal.PlatformDependent;
import io.netty.util.internal.SuppressJava6Requirement;
import io.netty.util.internal.logging.InternalLogger;
import io.netty.util.internal.logging.InternalLoggerFactory;
import java.lang.invoke.MethodHandle;
import java.lang.invoke.MethodHandles;
@ -27,27 +29,30 @@ import java.util.zip.Inflater;
@SuppressJava6Requirement(reason = "Guarded by version check")
final class Java11ZlibUtils {
private static final InternalLogger LOGGER = InternalLoggerFactory.getInstance(Java11ZlibUtils.class);
private static final MethodHandle INFLATER_SET_INPUT;
private static final MethodHandle INFLATER_INFLATE;
static {
MethodHandle inflaterSetInput = null;
MethodHandle inflaterInflate = null;
try {
inflaterSetInput = MethodHandles.lookup().findVirtual(Inflater.class, "setInput",
MethodType.methodType(void.class, ByteBuffer.class));
inflaterInflate = MethodHandles.lookup().findVirtual(Inflater.class, "inflate",
MethodType.methodType(int.class, ByteBuffer.class));
} catch (NoSuchMethodException e) {
e.printStackTrace();
inflaterSetInput = null;
inflaterInflate = null;
} catch (IllegalAccessException e) {
e.printStackTrace();
inflaterSetInput = null;
inflaterInflate = null;
}
if (PlatformDependent.javaVersion() >= 11) {
try {
inflaterSetInput = MethodHandles.lookup().findVirtual(Inflater.class, "setInput",
MethodType.methodType(void.class, ByteBuffer.class));
inflaterInflate = MethodHandles.lookup().findVirtual(Inflater.class, "inflate",
MethodType.methodType(int.class, ByteBuffer.class));
} catch (NoSuchMethodException e) {
LOGGER.debug("Couldn't find required methods on Inflater, falling-back to < Java11 methods", e);
inflaterSetInput = null;
inflaterInflate = null;
} catch (IllegalAccessException e) {
LOGGER.debug("Couldn't access required methods on Inflater, falling-back to < Java11 methods", e);
inflaterSetInput = null;
inflaterInflate = null;
}
}
INFLATER_SET_INPUT = inflaterSetInput;
INFLATER_INFLATE = inflaterInflate;
}