mvnw can't run on Windows

[GuoRuiLv]

Hi,when i build the project using mvnw ,get the error following:

Couldn't` find "G:\JDYUN\eclipse-jdt-ls\.mvn\wrapper\maven-wrapper.jar", downloading it ...
Downloading from: "https://repo.maven.apache.org/maven2/io/takari/maven-wrapper/0.4.0/maven-wrapper-0.4.0.jar"
Exception calling "DownloadFile" with "2" argument(s): "The request was aborted: Could not create SSL/TLS secure channel."
At line:1 char:1
+ (New-Object Net.WebClient).DownloadFile('https://repo.maven.apache.or ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : NotSpecified: (:) [], MethodInvocationException
    + FullyQualifiedErrorId : WebException

Finished downloading "G:\JDYUN\eclipse-jdt-ls\.mvn\wrapper\maven-wrapper.jar"
Error: Could not find or load main class org.apache.maven.wrapper.MavenWrapperMain

[fbricon]

I found a similar report in http://mail-archives.apache.org/mod_mbox/calcite-dev/201808.mbox/%3CCAKQOUBjuayYX83q9fDTiSEf2tydRpSprMm1UnFjoF+gHzffgcA@mail.gmail.com%3E

Try replacing https://github.com/eclipse/eclipse.jdt.ls/blob/5f2f5521f7eb707d9019fdc39279c930dbc7a8df/mvnw.cmd#L135

with

powershell -Command "[Net.ServicePointManager]::SecurityProtocol =
[Net.SecurityProtocolType]::Tls12; (New-Object
Net.WebClient).DownloadFile('%DOWNLOAD_URL%', '%WRAPPER_JAR%')"

If that works for you, I suggest you open a PR to fix https://github.com/takari/maven-wrapper/blob/master/mvnw.cmd#L135 upstream

[fbricon]

@snjeza have you experienced that issue on windows? The wrapper jar needs to be missing

[snjeza]

@snjeza have you experienced that issue on windows? The wrapper jar needs to be missing

I have faced the following:

$ cd eclips.jdt.ls
$ rm -rf .mvn/wrapper/maven-wrapper.jar
$ cd ../vscode-java
$ npm run build-server

> [email protected] build-server C:\jbtgit\vscode-java
> gulp build_server

[00:57:10] Using gulpfile C:\jbtgit\vscode-java\gulpfile.js
[00:57:10] Starting 'build_server'...
Couldn't find "C:\jbtgit\eclipse.jdt.ls\.mvn\wrapper\maven-wrapper.jar", downloading it ...
Downloading from: "https://repo.maven.apache.org/maven2/io/takari/maven-wrapper/0.4.0/maven-wrapper-0.4.0.jar"
Exception calling "DownloadFile" with "2" argument(s): "The underlying connecti
on was closed: An unexpected error occurred on a send."
At line:1 char:40
+ (New-Object Net.WebClient).DownloadFile <<<< ('https://repo.maven.apache.org/
maven2/io/takari/maven-wrapper/0.4.0/maven-wrapper-0.4.0.jar', 'C:\jbtgit\eclip
se.jdt.ls\.mvn\wrapper\maven-wrapper.jar')
    + CategoryInfo          : NotSpecified: (:) [], MethodInvocationException
    + FullyQualifiedErrorId : DotNetMethodException

A workaround:

$ cd ../eclipse.jdt.ls
$ ./mvnw -o clean package
$ cd ../vscode-java
$ npm run build-server

#789 (comment) doesn't help.

@lugreen Can you try to use the Git Bash cmd line.

[GuoRuiLv]

@snjeza I have tried ,but i encountered other problems :

9dsoft@laosan-bjb MINGW64 /g/JDYUN/eclipse-jdt-ls (master)
$ ./mvnw -o clean package
[INFO] Scanning for projects...
[INFO] Computing target platform for MavenProject: org.eclipse.jdt.ls:org.eclipse.jdt.ls.core:0.25.0-SNAPSHOT @ G:\JDYUN\eclipse-jdt-ls\org.eclipse.jdt.ls.core\pom.xml
[INFO] Adding repository http://download.eclipse.org/scout/releases/4.0/testing
[INFO] Adding repository http://download.eclipse.org/tools/orbit/R-builds/R20170516192513/repository
[INFO] Adding repository http://download.eclipse.org/buildship/updates/e47/releases/2.x
[INFO] Adding repository http://download.eclipse.org/technology/m2e/milestones/1.9/1.9.1.20180906-0204
[INFO] Adding repository http://download.eclipse.org/eclipse/updates/4.9-I-builds
[INFO] Adding repository http://download.eclipse.org/lsp4j/updates/releases
[INFO] Adding repository http://download.eclipse.org/releases/photon
[INFO] Adding repository http://download.jboss.org/jbosstools/updates/m2e-extensions/m2e-apt/1.5.0-2018-05-16_00-46-30-H11
[INFO] Resolving dependencies of MavenProject: org.eclipse.jdt.ls:org.eclipse.jdt.ls.core:0.25.0-SNAPSHOT @ G:\JDYUN\eclipse-jdt-ls\org.eclipse.jdt.ls.core\pom.xml
[ERROR] An error occurred while transferring artifact packed: osgi.bundle,org.eclipse.lsp4j,0.4.0.v20180425-1136 from repository http://download.eclipse.org/lsp4j/updates/releases/0.4.0:
[ERROR]    offline
[ERROR] Internal error: org.eclipse.tycho.repository.local.MirroringArtifactProvider$MirroringFailedException: Could not mirror artifact osgi.bundle,org.eclipse.lsp4j,0.4.0.v20180425-1136 into the local Maven repository.See log output for details. -> [Help 1]
org.apache.maven.InternalErrorException: Internal error: org.eclipse.tycho.repository.local.MirroringArtifactProvider$MirroringFailedException: Could not mirror artifact osgi.bundle,org.eclipse.lsp4j,0.4.0.v20180425-1136 into the local Maven repository.See log output for details.
    at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:120)
    at org.apache.maven.cli.MavenCli.execute (MavenCli.java:954)
    at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:288)

[snjeza]

Try to add the following:

-Dtycho.disableP2Mirrors=true

See https://wiki.eclipse.org/Tycho/FAQ#How_do_I_disable_P2_mirrors.3F

[gns26]

Any update on this? I followed the fix by fbricon (adding TLS12) and that seems to work

[snjeza]

Related issue: redhat-developer/vscode-xml#86 (comment)

[fbricon]

I updated the wrapper scripts from the unreleased https://github.com/takari/maven-wrapper

[jarst]

Commit fixing this issue:
takari/maven-wrapper@2528f41

[humbertocg]

Hi, i'm still getting this error on windows 10. everything is updated.

[jarek-przygodzki]

Hi, i'm still getting this error on windows 10. everything is updated.

.mvn\wrapper directory must exist and maven-wrapper.properties file must be present in it. mvnw.cmd can only download maven-wrapper.jar. As far as I understand, it's a workaround for projects that prohibit checking in binary data. Error reporting could be better.

[LeszekChojnacki]

If you are using a VSCode, and you see this err in your consol you can try to set your terminal default to cmd

[dbnex14]

I am having the very same problem in 2021, VSC 1.56.2 on Windows 10. Could this have to do something with being behind a proxy?

C:\Windows>"\\path-to-my-project\mvnw.cmd" clean -f "\\path-to-my-project\pom.xml"
Exception calling "DownloadFile" with "2" argument(s): "An exception occurred during a WebClient request."
At line:1 char:282
+ ... pe]::Tls12; $webclient.DownloadFile('https://repo.maven.apache.org/ma ...
+                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : NotSpecified: (:) [], MethodInvocationException
    + FullyQualifiedErrorId : WebException
 
Error: Could not find or load main class org.apache.maven.wrapper.MavenWrapperMain