Configure script failing to create repository when ran on server without internet connection

Symptoms

The configure script fails to create a repository throwing the following error:

Exception in thread "main" java.net.ConnectException: Connection timed out (Connection timed out)
 at java.net.PlainSocketImpl.socketConnect(Native Method)
 at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
 at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
 at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
 at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
 at java.net.Socket.connect(Socket.java:589)
 at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:673)
 at sun.security.ssl.BaseSSLSocketImpl.connect(BaseSSLSocketImpl.java:173)
 at sun.net.NetworkClient.doConnect(NetworkClient.java:180)
 at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
 at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
 at sun.net.www.protocol.https.HttpsClient.<init>(HttpsClient.java:264)
 at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367)
 at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:191)
 at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1156)
 at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1050)
 at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:177)
 at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1564)
 at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1492)
 at sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(HttpsURLConnectionImpl.java:263)
 at org.gradle.wrapper.Download.downloadInternal(Download.java:66)
 at org.gradle.wrapper.Download.download(Download.java:51)
 at org.gradle.wrapper.Install$1.call(Install.java:62)
 at org.gradle.wrapper.Install$1.call(Install.java:48)
 at org.gradle.wrapper.ExclusiveFileAccessManager.access(ExclusiveFileAccessManager.java:69)
 at org.gradle.wrapper.Install.createDist(Install.java:48)
 at org.gradle.wrapper.WrapperExecutor.execute(WrapperExecutor.java:107)
 at org.gradle.wrapper.GradleWrapperMain.main(GradleWrapperMain.java:61)
Failed to update to the new repository

Cause

The configure script is searching for the gradle distribution in an erroneous location. This issue has been reported to the Appian Product Team. The reference number for this issue is AN-107866.

Action

1. Navigate to the gradle-wrapper.properties file located in

   <APPIAN_HOME>_admin_scripts\configure\gradle\wrapper

2. In the gradle-wrapper.properties file, change the distributionUrl property value from 

   distributionUrl=https\://services.gradle.org/distributions/gradle-4.6-bin.zip

   to

   distributionUrl=dists/gradle-4.6-bin/4jp4stjndanmxuerzfseyb6wo/gradle-4.6-bin.zip

3. Save the changes made to the gradle-wrapper.properties file
4. Run the configure script and create a repository

Affected Versions

Appian 18.2.20.0