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HADOOP-17858. Avoid possible class loading deadlock with VerifierNone initialization (#3321)

This commit is contained in:
Viraj Jasani 2021-08-24 19:11:59 +05:30 committed by GitHub
parent e06a5cb197
commit fc566ad9b0
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3 changed files with 3 additions and 4 deletions
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3
hadoop-common-project/hadoop-nfs/src/main/java/org/apache/hadoop/oncrpc/RpcProgram.java
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@ -28,7 +28,6 @@ import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.ChannelInboundHandlerAdapter;
import org.apache.hadoop.thirdparty.com.google.common.annotations.VisibleForTesting;
import org.apache.hadoop.oncrpc.RpcAcceptedReply.AcceptState;
import org.apache.hadoop.oncrpc.security.Verifier;
import org.apache.hadoop.oncrpc.security.VerifierNone;
import org.apache.hadoop.portmap.PortmapMapping;
import org.apache.hadoop.portmap.PortmapRequest;
@ -213,7 +212,7 @@ public abstract class RpcProgram extends ChannelInboundHandlerAdapter {
private void sendAcceptedReply(RpcCall call, SocketAddress remoteAddress,
AcceptState acceptState, ChannelHandlerContext ctx) {
RpcAcceptedReply reply = RpcAcceptedReply.getInstance(call.getXid(),
acceptState, Verifier.VERIFIER_NONE);
acceptState, VerifierNone.INSTANCE);
XDR out = new XDR();
reply.write(out);

2
hadoop-common-project/hadoop-nfs/src/main/java/org/apache/hadoop/oncrpc/security/Verifier.java
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@ -27,8 +27,6 @@ import org.apache.hadoop.oncrpc.XDR;
*/
public abstract class Verifier extends RpcAuthInfo {
public static final Verifier VERIFIER_NONE = new VerifierNone();
protected Verifier(AuthFlavor flavor) {
super(flavor);
}

2
hadoop-common-project/hadoop-nfs/src/main/java/org/apache/hadoop/oncrpc/security/VerifierNone.java
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@ -24,6 +24,8 @@ import org.apache.hadoop.thirdparty.com.google.common.base.Preconditions;
/** Verifier used by AUTH_NONE. */
public class VerifierNone extends Verifier {
public static final Verifier INSTANCE = new VerifierNone();
public VerifierNone() {
super(AuthFlavor.AUTH_NONE);
}