Cannot run Gradlew: get Exception in thread "main" java.net.SocketException: Connection reset

Question

I'm trying to run gradlew to build some code that had been supplied to me. The source is the ZIP download from here and all I've done is open a command prompt, cd to that folder and run gradlew.bat.

I've had this work on my crash'n'burn machine but I can't get it working on my main dev machine. The dev machine sits behind a proxy which requires authentication, the other machine doesn't - they're at different locations.

Originally, I got:

Exception in thread "main" java.net.UnknownHostException: services.gradle.org

From this, to gradle.properties, I added:

systemProp.http.proxyHost=192.168.x.y 
systemProp.http.proxyPort=80
systemProp.http.proxyUser=myuserid
systemProp.http.proxyPassword=mypassword

and ran it again and got:

C:\Users\tso259sa\workspace\spring-security-saml-master>gradlew.bat
Downloading http://services.gradle.org/distributions/gradle-1.4-bin.zip

Exception in thread "main" java.net.SocketException: Connection reset
    at java.net.SocketInputStream.read(SocketInputStream.java:189)
    at java.net.SocketInputStream.read(SocketInputStream.java:121)
    at java.io.BufferedInputStream.fill(BufferedInputStream.java:235)
    at java.io.BufferedInputStream.read1(BufferedInputStream.java:275)
    at java.io.BufferedInputStream.read(BufferedInputStream.java:334)
    at sun.net.www.MeteredStream.read(MeteredStream.java:134)
    at java.io.FilterInputStream.read(FilterInputStream.java:133)
    at sun.net.www.protocol.http.HttpURLConnection$HttpInputStream.read(HttpURLConnection.java:3052)
    at sun.net.www.protocol.http.HttpURLConnection$HttpInputStream.read(HttpURLConnection.java:3046)
    at org.gradle.wrapper.Download.downloadInternal(Download.java:67)
    at org.gradle.wrapper.Download.download(Download.java:49)
    at org.gradle.wrapper.Install.createDist(Install.java:51)
    at org.gradle.wrapper.WrapperExecutor.execute(WrapperExecutor.java:129)
    at org.gradle.wrapper.GradleWrapperMain.main(GradleWrapperMain.java:48)

For info, if I try an incorrect password or ID, I get:

Exception in thread "main" java.net.ProtocolException: Server redirected too many  times (20)

so I think that rules out incorrect ID. Anyone have any ideas what I can try?

I found this answer useful, I also had the same problem. [Answer to -> UnknownHostException error, building java grpc example](https://stackoverflow.com/a/57324396/11618893) — Deepak Kumrawat, Aug 02 '19 at 10:16

score 2 · Answer 1 · answered Mar 20 '13 at 17:08

I don't know exactly what caused the connection reset but I tried again several times, in case it was transient and, after some time, the response changed to:

Exception in thread "main" java.io.IOException: Server returned 
HTTP response code: 403

Suspecting our security systems, I tried to download the file using a browser and received a message from one of the security boxes saying it had been blocked because it contained a .bat file: a regular occurrence.

Subhrajyoti Sen · Answer 2 · 2017-01-09T11:08:06.553

2

Look in your build.gradle and gradle.properties and edit 'https://' to 'http://' in all links

edited Jan 09 '17 at 11:08

answered Jul 28 '16 at 15:33

Subhrajyoti Sen

1,525
14
18

score 1 · Answer 3 · edited Feb 13 '20 at 07:28

I still got this issue today. Different company has different proxy settings. after investigate, it worked for me:

org.gradle.daemon=true
systemProp.https.proxyHost=[server name]
systemProp.https.proxyPort=[port]
systemProp.https.proxyUser=[user name]
systemProp.https.proxyPassword=XXXXX
systemProp.https.nonProxyHosts= localhost
systemProp.http.proxyHost=[server name]
systemProp.http.proxyPort=[port]
systemProp.http.proxyUser=[user name]
systemProp.http.proxyPassword=XXXXX
systemProp.http.nonProxyHosts= localhost

Cannot run Gradlew: get Exception in thread "main" java.net.SocketException: Connection reset

3 Answers3