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https://issues.apache.org/jira/browse/HTTPCLIENT-1619?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Oleg Kalnichevski resolved HTTPCLIENT-1619.
-------------------------------------------
Resolution: Invalid
BasicScheme is clearly marked as @NotThreadSafe. It is not meant to be
thread-safe.
BasicAuthCache in 4.3 is NOT thread-safe either. It is thread safe 4.4. Please
consider upgrading.
Oleg
> BasicScheme.authenticate(...) is not thread save
> ------------------------------------------------
>
> Key: HTTPCLIENT-1619
> URL: https://issues.apache.org/jira/browse/HTTPCLIENT-1619
> Project: HttpComponents HttpClient
> Issue Type: Bug
> Components: HttpAuth
> Affects Versions: 4.3.5, 4.3.6
> Reporter: Grigori
>
> // 1. create one HttpClient with multi thread connection manager:
> {quote}
> HttpClientConnectionManager connManager = new
> PoolingHttpClientConnectionManager(...)
> HttpClient client = HttpClientBuilder.create()
> .setConnectionManager(connManager)
> ...
> .build();
> AuthSchemeBase auth = new BasicScheme();
> AuthCache authCache = new BasicAuthCache();
> authCache.put(host, auth);
> CredentialsProvider provider = ...;
> HttpClientContext context = HttpClientContext.create();
> context.setCredentialsProvider(provider);
> context.setAuthCache(authCache);
> {quote}
> // 2. do parallel requests:
> {quote}
> // multi thread:
> HttpGet get = new HttpGet(requestUrl);
> HttpResponse resp = client.execute(host, get, context);
> {quote}
> In 4.3.5 sometimes gets random wrong header: "Authorization: Basic
> YXZ2dml0aXR...="
> In 4.3.6 sometimes happens NullPointerException
> Because {{org.apache.http.impl.auth.BasicScheme.authenticate(...)}} use *not
> thread save* {{base64codec}}:
> {quote}
> org.apache.http.impl.auth.BasicScheme:165
> final byte[] base64password = base64codec.encode(
> EncodingUtils.getBytes(tmp.toString(),
> getCredentialsCharset(request)));
> {quote}
>
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