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Adding Password Protected Maven Repository URL in Gradle

In my current project at work, I had to setup a private maven repository hosted at Artifactory. I was assigned login credentials to access the libraries (or artifacts) from the repository. But, when I was fetching it from Android Studio project through build.gradle file, I was getting this exception on syncing the project.

org.gradle.internal.resource.transport.http.HttpRequestException: Could not GET 'MY_MAVEN_ARTIFACT_URL_GOES_HERE'.
Caused by: java.net.SocketTimeoutException: Read timed out
at java.net.SocketInputStream.socketRead0(Native Method)
at java.net.SocketInputStream.socketRead(SocketInputStream.java:116)
at java.net.SocketInputStream.read(SocketInputStream.java:171)
at java.net.SocketInputStream.read(SocketInputStream.java:141)
at org.apache.http.impl.io.SessionInputBufferImpl.streamRead(SessionInputBufferImpl.java:139)
at org.apache.http.impl.io.SessionInputBufferImpl.fillBuffer(SessionInputBufferImpl.java:155)
at org.apache.http.impl.io.SessionInputBufferImpl.readLine(SessionInputBufferImpl.java:284)
at org.apache.http.impl.conn.DefaultHttpResponseParser.parseHead(DefaultHttpResponseParser.java:140)
at org.apache.http.impl.conn.DefaultHttpResponseParser.parseHead(DefaultHttpResponseParser.java:57)
at org.apache.http.impl.io.AbstractMessageParser.parse(AbstractMessageParser.java:261)
at org.apache.http.impl.DefaultBHttpClientConnection.receiveResponseHeader(DefaultBHttpClientConnection.java:165)
at org.apache.http.impl.conn.CPoolProxy.receiveResponseHeader(CPoolProxy.java:167)
at org.apache.http.protocol.HttpRequestExecutor.doReceiveResponse(HttpRequestExecutor.java:272)
at org.apache.http.protocol.HttpRequestExecutor.execute(HttpRequestExecutor.java:124)
at org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:271)
at org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:184)
at org.apache.http.impl.execchain.RetryExec.execute(RetryExec.java:88)
at org.apache.http.impl.execchain.RedirectExec.execute(RedirectExec.java:110)
at org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:184)
at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:82)

As the exception says, I was confused and I thought that my private maven URL is not valid etc. And I tried following methods to solve this issue:

  • Invalidating cache and restart Android studio (several times) but didn't worked for me.
  • Changing proxy settings from SOCKS to HTTPS to HTTP but didn't worked for me.
  • White listing Android Studio in Firewall for Windows 10. Again, didn't worked for me.
  • Deleting .gradle folder etc.
  • Tried to get username and password for maven repo from system variables, but didn't work.
  • Tried to get username and password for maven repo from gradle.properties file but didn't work.
  • Tried to put username and password for maven repo directly in the build.gradle file (which is highly not recommended) but still didn't work.

After 2-3 hours of troubleshooting and debugging, I found out that problem is not with the maven URL. The URL works great in browsers, the problem was Android Studio was not properly authenticating maven repo in right way as I missed a thing to put.

Solution

So, here's the solution which worked for me.

First, you need to add your login credentials in gradle.properties file. Please note that this is not recommended to share your credentials this way. I am looking for more optimal and secure solution. If you have any way, do let me know.

mavenUser = MY_USER_NAME
mavenPassword = MY_PASSWORD

THen, you need to add your private maven URL in root build.gradle file like this:

allprojects {
    repositories {
        // ...
        maven {
            credentials  {
                username = "${mavenUser}"
                password = "${mavenPassword}"
            }
            url "http://my.private.artifactory/url/goes/here"
            authentication {                            // I was missing this authentication section and that's why read timeout
                basic(BasicAuthentication)
            }
        }
    }
}

My mistake was I was missing authentication block and that's why Android studio couldn't get logged in private URL and after multiple failed retries, it was getting read timeout response. Adding this authentication block worked for me.

authentication {                            
    basic(BasicAuthentication)
}