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Utilize i.n.u.internal.ObjectUtil to assert Preconditions (misc) (#11170) (#11186)

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Motivation:

NullChecks resulting in a NullPointerException or IllegalArgumentException, numeric ranges (>0, >=0) checks, not empty strings/arrays checks must never be anonymous but with the parameter or variable name which is checked. They must be specific and should not be done with an "OR-Logic" (if a == null || b == null) throw new NullPointerEx.

Modifications:

* import static relevant checks
* Replace manual checks with ObjectUtil methods

Result:

All checks needed are done with ObjectUtil, some exception texts are improved in microbench and resolver-dns

Fixes #11170
This commit is contained in:
Boris Unckel 2021-04-22 17:44:58 +02:00 committed by Norman Maurer
parent c1a04297e7
commit 0e8f5c5f7c
2 changed files with 4 additions and 12 deletions
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9
microbench/src/main/java/io/netty/handler/codec/http2/Http2FrameWriterDataBenchmark.java
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@ -48,6 +48,7 @@ import static io.netty.handler.codec.http2.Http2CodecUtil.MAX_UNSIGNED_BYTE;
import static io.netty.handler.codec.http2.Http2CodecUtil.verifyPadding;
import static io.netty.handler.codec.http2.Http2CodecUtil.writeFrameHeaderInternal;
import static io.netty.handler.codec.http2.Http2FrameTypes.DATA;
import static io.netty.util.internal.ObjectUtil.checkPositive;
import static java.lang.Math.max;
import static java.lang.Math.min;
@ -124,7 +125,7 @@ public class Http2FrameWriterDataBenchmark extends AbstractMicrobenchmark {
boolean needToReleaseHeaders = true;
boolean needToReleaseData = true;
try {
verifyStreamId(streamId, "Stream ID");
checkPositive(streamId, "streamId");
verifyPadding(padding);
boolean lastFrame;
@ -175,12 +176,6 @@ public class Http2FrameWriterDataBenchmark extends AbstractMicrobenchmark {
return promiseAggregator.doneAllocatingPromises();
}
private static void verifyStreamId(int streamId, String argumentName) {
if (streamId <= 0) {
throw new IllegalArgumentException(argumentName + " must be > 0");
}
}
private static int paddingBytes(int padding) {
// The padding parameter contains the 1 byte pad length field as well as the trailing padding bytes.
// Subtract 1, so to only get the number of padding bytes that need to be appended to the end of a frame.

7
resolver-dns/src/main/java/io/netty/resolver/dns/DnsServerAddresses.java
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@ -17,6 +17,7 @@
package io.netty.resolver.dns;
import static java.util.Objects.requireNonNull;
import static io.netty.util.internal.ObjectUtil.checkNonEmpty;
import java.net.InetSocketAddress;
import java.util.ArrayList;
@ -176,11 +177,7 @@ public abstract class DnsServerAddresses {
list.add(a);
}
if (list.isEmpty()) {
throw new IllegalArgumentException("empty addresses");
}
return list;
return checkNonEmpty(list, "list");
}
private static List<InetSocketAddress> sanitize(InetSocketAddress[] addresses) {