Can't download or attach sources

Hello Douglas,

Please report issue on YouTrack attaching idea.log ("Help | Show Log in...") after restarting IDE and executing "download sources": http://youtrack.jetbrains.com/issues/IDEA.

There are no messages regarding this issue in the idea.log or the build.log files.  What else can I try?

When I build my dependency, I am using `mvn clean source:jars install`.  I can see the generation of the binary and source jars in the output.  I can also see both jars in my local ~/.m2/repository directory.  So the source jar is definitely there.  

Douglas,

There might be some configuration issues. That's why I ask you for logs.

I have similar issue. When I click download sources it starts downloading the related jar and when it finishes it says "Cannot download sources:...". Into the log i see "Caused by: java.lang.ClassNotFoundException: org.codehaus.plexus.util.StringUtils" :

https://intellij-support.jetbrains.com/hc/en-us/community/posts/360003476140/comments/360000524700

Could you please attach screenshot from "Settings | Build, Execution, Deployment | Build Tools | Maven"?

Is it neccessary to use Maven 2?

yes, but I tried switching to maven 3 just to try the downloads and I get (names are obfuscated) :

2019-06-03 16:34:15,526 [1232946917]   INFO -      #org.jetbrains.idea.maven - org.eclipse.aether.resolution.ArtifactResolutionException: Failure to find org.hibernate:hibernate-core:jar:sources:5.3.7.Final in file:///home/user/workspace/project/build/mvn_repo/} was cached in the local repository, resolution will not be reattempted until the update interval of myRepo has elapsed or updates are forced 
java.lang.RuntimeException: org.eclipse.aether.resolution.ArtifactResolutionException: Failure to find org.hibernate:hibernate-core:jar:sources:5.3.7.Final in file:///home/user/workspace/project/build/mvn_repo/} was cached in the local repository, resolution will not be reattempted until the update interval of myRepo has elapsed or updates are forced
	at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:444)
	at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifacts(DefaultArtifactResolver.java:246)
	at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifact(DefaultArtifactResolver.java:223)
	at org.eclipse.aether.internal.impl.DefaultRepositorySystem.resolveArtifact(DefaultRepositorySystem.java:294)
	at org.jetbrains.idea.maven.server.Maven3ServerEmbedderImpl.resolve(Maven3ServerEmbedderImpl.java:1255)
	at org.jetbrains.idea.maven.server.Maven3ServerEmbedderImpl.doResolve(Maven3ServerEmbedderImpl.java:1193)
	at org.jetbrains.idea.maven.server.Maven3ServerEmbedderImpl.doResolve(Maven3ServerEmbedderImpl.java:1187)
	at org.jetbrains.idea.maven.server.Maven3ServerEmbedderImpl.resolve(Maven3ServerEmbedderImpl.java:1056)
	at sun.reflect.GeneratedMethodAccessor38.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:357)
	at sun.rmi.transport.Transport$1.run(Transport.java:200)
	at sun.rmi.transport.Transport$1.run(Transport.java:197)
	at java.security.AccessController.doPrivileged(Native Method)
	at sun.rmi.transport.Transport.serviceCall(Transport.java:196)
	at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:573)
	at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:834)
	at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$0(TCPTransport.java:688)
	at java.security.AccessController.doPrivileged(Native Method)
	at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:687)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.RuntimeException: org.eclipse.aether.transfer.ArtifactNotFoundException: Failure to find org.hibernate:hibernate-core:jar:sources:5.3.7.Final in file:///home/user/workspace/project/build/mvn_repo/} was cached in the local repository, resolution will not be reattempted until the update interval of myRepo has elapsed or updates are forced
	at org.eclipse.aether.internal.impl.DefaultUpdateCheckManager.newException(DefaultUpdateCheckManager.java:231)
	at org.eclipse.aether.internal.impl.DefaultUpdateCheckManager.checkArtifact(DefaultUpdateCheckManager.java:206)
	at org.eclipse.aether.internal.impl.DefaultArtifactResolver.gatherDownloads(DefaultArtifactResolver.java:585)
	at org.eclipse.aether.internal.impl.DefaultArtifactResolver.performDownloads(DefaultArtifactResolver.java:503)
	at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:421)
	... 23 more
2019-06-03 16:34:15,591 [1232946982]   INFO - pl.ProjectRootManagerComponent - project roots have changed 
2019-06-03 16:34:16,775 [1232948166]   INFO - .diagnostic.PerformanceWatcher - Pushing properties took 1106ms; general responsiveness: ok; EDT responsiveness: ok 
2019-06-03 16:34:17,016 [1232948407]   INFO - .diagnostic.PerformanceWatcher - Indexable file iteration took 241ms; general responsiveness: ok; EDT responsiveness: ok 

You could try workaroud from this comment: https://youtrack.jetbrains.com/issue/IDEA-204711#focus=streamItem-27-3252008.0-0

I have reimported my project, its using maven3 now and in intellij I'm using the bundled maven3 and still cannot get sources:

What IDE version do you use? Could you please check the issue with IDEA 2019.2?

I was using 2019.1.1 and just downloaded 2019.2 and reproduce it:

2019-07-18 17:11:56,321 [ 624700]   INFO -      #org.jetbrains.idea.maven - org.eclipse.aether.resolution.ArtifactResolutionException: Failure to find org.hibernate.javax.persistence:hibernate-jpa-2.1-api:jar:sources:1.0.0.Final in file://///home/user/workspace/project/build/mvn_repo/} was cached in the local repository, resolution will not be reattempted until the update interval of Internal-myProject has elapsed or updates are forced 

java.lang.RuntimeException: org.eclipse.aether.resolution.ArtifactResolutionException: Failure to find org.hibernate.javax.persistence:hibernate-jpa-2.1-api:jar:sources:1.0.0.Final in file://///home/user/workspace/project/build/mvn_repo/} was cached in the local repository, resolution will not be reattempted until the update interval of Internal-myProject has elapsed or updates are forced

at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:423)

at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifacts(DefaultArtifactResolver.java:225)

at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifact(DefaultArtifactResolver.java:202)

at org.eclipse.aether.internal.impl.DefaultRepositorySystem.resolveArtifact(DefaultRepositorySystem.java:257)

at org.jetbrains.idea.maven.server.Maven3XServerEmbedder.resolve(Maven3XServerEmbedder.java:1245)

at org.jetbrains.idea.maven.server.Maven3XServerEmbedder.doResolve(Maven3XServerEmbedder.java:1195)

at org.jetbrains.idea.maven.server.Maven3XServerEmbedder.doResolve(Maven3XServerEmbedder.java:1189)

at org.jetbrains.idea.maven.server.Maven3XServerEmbedder.resolve(Maven3XServerEmbedder.java:1052)

at jdk.internal.reflect.GeneratedMethodAccessor36.invoke(Unknown Source)

at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

at java.base/java.lang.reflect.Method.invoke(Method.java:566)

at java.rmi/sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:359)

at java.rmi/sun.rmi.transport.Transport$1.run(Transport.java:200)

at java.rmi/sun.rmi.transport.Transport$1.run(Transport.java:197)

at java.base/java.security.AccessController.doPrivileged(Native Method)

at java.rmi/sun.rmi.transport.Transport.serviceCall(Transport.java:196)

at java.rmi/sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:562)

at java.rmi/sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:796)

at java.rmi/sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$0(TCPTransport.java:677)

at java.base/java.security.AccessController.doPrivileged(Native Method)

at java.rmi/sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:676)

at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)

at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)

at java.base/java.lang.Thread.run(Thread.java:834)

Caused by: java.lang.RuntimeException: org.eclipse.aether.transfer.ArtifactNotFoundException: Failure to find org.hibernate.javax.persistence:hibernate-jpa-2.1-api:jar:sources:1.0.0.Final in file://///home/user/workspace/project/build/mvn_repo/} was cached in the local repository, resolution will not be reattempted until the update interval of Internal-myProject has elapsed or updates are forced

at org.eclipse.aether.internal.impl.DefaultUpdateCheckManager.newException(DefaultUpdateCheckManager.java:219)

at org.eclipse.aether.internal.impl.DefaultUpdateCheckManager.checkArtifact(DefaultUpdateCheckManager.java:192)

at org.eclipse.aether.internal.impl.DefaultArtifactResolver.gatherDownloads(DefaultArtifactResolver.java:564)

at org.eclipse.aether.internal.impl.DefaultArtifactResolver.performDownloads(DefaultArtifactResolver.java:482)

at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:400)

... 23 more

2019-07-18 17:11:56,355 [ 624734]   INFO - pl.ProjectRootManagerComponent - project roots have changed 

2019-07-18 17:11:56,836 [ 625215]   INFO - .diagnostic.PerformanceWatcher - Pushing properties took 399ms; general responsiveness: ok; EDT responsiveness: ok 

2019-07-18 17:11:56,914 [ 625293]   INFO - .diagnostic.PerformanceWatcher - Indexable file iteration took 78ms; general responsiveness: ok; EDT responsiveness: ok 

Is it possible to share a sample project to reproduce the issue?

https://youtrack.jetbrains.com/issue/IDEA-91662 could be the case.

There are errors in some *.lastUpdated files in maven repo like this one:

cat /home/user/workspace/project/build/mvn_repo/org/springframework/spring-context/5.1.8.RELEASE/spring-context-5.1.8.RELEASE-sources.jar.lastUpdated

#NOTE: This is a Maven Resolver internal implementation file, its format can be changed without prior notice.
#Tue Aug 20 16:33:44 EEST 2019
file\://${maven.repo.local}/.error=Could not transfer artifact org.springframework\:spring-context\:jar\:sources\:5.1.8.RELEASE from/to Internal-myProject (file\://${maven.repo.local})\: Repository path ${maven.repo.local} does not exist, and cannot be created.
@default-Internal-myProject-file\://${maven.repo.local}/.lastUpdated=1566308024676

Found a workaround: manually execute maven source download with:

mvn -P myProfile eclipse:eclipse -DdownloadSources=true

.lastUpdated files are created by Maven when the download of this artifact was unsuccessful. The information from these files is then used for subsequent download tries.

To have IDE always use -DdownloadSources=true switch you can by enabling Settings (Preferences on macOS) | Build, Execution, Deployment | Build Tools | Maven | Importing | Sources option.

Hello and Happy New Year 2023!

Unfortunately this is *still* an issue (how can be this so hard to resolve?!). Details follow:

Platform: IDEA Ultimate - Build #IU-223.8214.52, built on December 20, 2022

Host OS: Linux, PopOS 22.04 LTS, 64 bit, Gnome version 42.5

JDK: Open JDK 11.0.17

Project: maven based with a simple dependency on the kotlin stdlib

<dependency>
    <groupId>org.jetbrains.kotlin</groupId>
    <artifactId>kotlin-stdlib-jdk8</artifactId>
    <version>1.7.21</version>
</dependency>

In File | Settings | Build, Execution, Deployment | Build Tools | Maven, Maven home path is set to Bundled (Maven 3).

In File | Settings | Build, Execution, Deployment | Build Tools | Maven | Importing I have set Automatically download: Sources, Documentation and Annotations. 

Attempting to navigate from usage of `mapKeys` to definition. IDE shows "Decompiled .class file etc" view with options to Decompile to Java; Download Sources; Choose Sources ....

When I click Choose Sources, I can see the binary, sources and documentation jars for the Kotlin stdlib. I select the sources jar press Ok. But nothing happens.

I don't understand what I'm doing wrong. Honestly, I expect more from IDEA Ultimate (which I pay for!). I would be grateful if you can help me to fix this. Please don't ask me to open a ticket - this issue has been raised many times before and consistently fails to work. Thanks for your help.

This sounds like a different issue - with Kotlin libraries: KTIJ-23886 Cannot navigate to Kotlin standard library source code

Please vote for and flow the KTIJ-23874 issue.