Arun Katkere created HTTPCORE-737:
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Summary: HttpClient 5.1.2 not working with Java 8 runtime
Key: HTTPCORE-737
URL: https://issues.apache.org/jira/browse/HTTPCORE-737
Project: HttpComponents HttpCore
Issue Type: Bug
Components: HttpCore
Affects Versions: 5.2.1
Reporter: Arun Katkere
When we try to run HttpClient 5.2.1 with Java 8 runtime, it fails with:
java.lang.NoSuchMethodError: java.nio.ByteBuffer.flip()Ljava/nio/ByteBuffer;
at org.apache.hc.core5.net.PercentCodec.decode(PercentCodec.java:155)
at org.apache.hc.core5.net.PercentCodec.decode(PercentCodec.java:160)
at org.apache.hc.core5.net.URIBuilder.parsePath(URIBuilder.java:277)
at org.apache.hc.core5.net.URIBuilder.digestURI(URIBuilder.java:407)
at org.apache.hc.core5.net.URIBuilder.<init>(URIBuilder.java:134)
at org.apache.hc.core5.net.URIBuilder.<init>(URIBuilder.java:106)
at
org.apache.hc.client5.http.impl.RequestSupport.extractPathPrefix(RequestSupport.java:49)
at
org.apache.hc.client5.http.impl.classic.ProtocolExec.execute(ProtocolExec.java:152)
at
org.apache.hc.client5.http.impl.classic.ExecChainElement.execute(ExecChainElement.java:51)
at
org.apache.hc.client5.http.impl.classic.HttpRequestRetryExec.execute(HttpRequestRetryExec.java:96)
at
org.apache.hc.client5.http.impl.classic.ExecChainElement.execute(ExecChainElement.java:51)
at
org.apache.hc.client5.http.impl.classic.ContentCompressionExec.execute(ContentCompressionExec.java:152)
at
org.apache.hc.client5.http.impl.classic.ExecChainElement.execute(ExecChainElement.java:51)
at
org.apache.hc.client5.http.impl.classic.RedirectExec.execute(RedirectExec.java:115)
at
org.apache.hc.client5.http.impl.classic.ExecChainElement.execute(ExecChainElement.java:51)
at
org.apache.hc.client5.http.impl.classic.InternalHttpClient.doExecute(InternalHttpClient.java:170)
at
org.apache.hc.client5.http.impl.classic.CloseableHttpClient.execute(CloseableHttpClient.java:123)
It runs fine in a Java 11 runtime.
Java 8 java.nio.ByteBuffer does not define “java.nio.ByteBuffer flip()” method.
Instead it just inherits “java.nio.Buffer flip()” from its super class.
However, Java 9 and newer versions have the additional flip method. I believe
if pom.xml contains <maven.compiler.release>8</maven.compiler.release> it
should fix this issue. Alternatively, this component can be built with Java 8.
According to the documentation
[https://hc.apache.org/httpcomponents-client-5.2.x/quickstart.html] "HttpClient
5.2 requires Java 1.8 or newer." so the expectation here is that it works with
Java 1.8/8 runtime.
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