upgrade to springboot 2.7 fails for gradle project

[Sanskarbajaj]

What went wrong:
Execution failed for task ':rewriteRun'.

java.lang.RuntimeException: Error while visiting \build.gradle: java.lang.RuntimeException: java.io.UncheckedIOException: java.net.UnknownHostException: repo.maven.apache.org
org.openrewrite.maven.internal.MavenPomDownloader.requestAsAuthenticatedOrAnonymous(MavenPomDownloader.java:802)
org.openrewrite.maven.internal.MavenPomDownloader.downloadMetadata(MavenPomDownloader.java:254)
org.openrewrite.maven.internal.MavenPomDownloader.downloadMetadata(MavenPomDownloader.java:210)
org.openrewrite.gradle.plugins.AddPluginVisitor.downloadMetadata(AddPluginVisitor.java:95)
org.openrewrite.gradle.plugins.AddPluginVisitor.findNewerVersion(AddPluginVisitor.java:85)
org.openrewrite.gradle.plugins.AddPluginVisitor.resolvePluginVersion(AddPluginVisitor.java:77)
org.openrewrite.gradle.plugins.UpgradePluginVersion$3.visitMethodInvocation(UpgradePluginVersion.java:257)
org.openrewrite.gradle.plugins.UpgradePluginVersion$3.visitMethodInvocation(UpgradePluginVersion.java:206)
org.openrewrite.java.tree.J$MethodInvocation.acceptJava(J.java:3932)
org.openrewrite.java.tree.J.accept(J.java:59)
org.openrewrite.TreeVisitor.visit(TreeVisitor.java:278)
org.openrewrite.TreeVisitor.visitAndCast(TreeVisitor.java:361)
org.openrewrite.java.JavaVisitor.visitRightPadded(JavaVisitor.java:1375)
org.openrewrite.java.JavaVisitor.lambda$visitBlock$4(JavaVisitor.java:401)
org.openrewrite.internal.ListUtils.map(ListUtils.java:176)
org.openrewrite.java.JavaVisitor.visitBlock(JavaVisitor.java:400)

[timtebeek]

The recipes connect to Maven Central to download updated dependencies and plugins. Here it seems Maven Central is not accessible from your machine, unrelated to OpenRewrite. Might you have some company network policies that get in the way? Also welcome to ask questions via Slack, or Stack overflow, as those are more geared towards questions.

[Sanskarbajaj]

other recipies also i'm trying those working well like junit4 to 5 and all

[timtebeek]

Are you saying that other recipes work just fine, and it's just the upgrade to Spring Boot 2.7 recipe that fails for you?
Does it repeatedly fail? Since I can access https://repo.maven.apache.org just fine here. How's that for you?

[Sanskarbajaj]

yes other recipies work fine this didn't work not even one time for me maybe something i'm doing wrong and get the error i pasted earlier and yes i can access the link you sent

[shanman190]

So there are two parts here, I think.

• UnknownHostException means that the address was not able to be resolved with DNS from your location. @Sanskarbajaj, are you running from some location where Maven Central is or was inaccessible from your device/location? Maybe on an enterprise network that explicitly disallows network access to Maven Central (repo.maven.apache.org)?

• There was a bug in UpgradePluginVersion if you have multiple of the same Gradle project files within the workspace. openrewrite/rewrite@adb74ac (note that this does not explain the DNS failure to resolve the address from Part 1, that part is a device+location issue outside of scope for us).

[Sanskarbajaj]

i think its the second issue that you mentioned how to fix this any idea?
@shanman190 @timtebeek

[shanman190]

@Sanskarbajaj, from just your stack trace alone the issue that you're presently facing is the first one for sure. Specifically the java.net.UnknownHostException is only thrown when the specified DNS address cannot be resolved.

The second one only appears -- and furthermore it appears as an instance of org.openrewrite.maven.MavenDownloadingException -- if you have multiple build.gradle files with different repositories across them. It would specifically present as being unable to resolve a specific dependency because it is unavailable in any of the set of used repositories. The bug in particular originates from finding and then reusing the first GradleProject marker that was found across the entire project rather than the one specific to the current build.gradle file that was being visited. The fix for this will be available in the next rewrite and rewrite-gradle-plugin releases.

[Sanskarbajaj]

Execution failed for task ':rewriteRun'.

java.lang.RuntimeException: Error while visiting clients\build.gradle: java.lang.RuntimeException: java.io.UncheckedIOException: java.net.UnknownHostException: repo.maven.apache.org
org.openrewrite.maven.internal.MavenPomDownloader.requestAsAuthenticatedOrAnonymous(MavenPomDownloader.java:808)
org.openrewrite.maven.internal.MavenPomDownloader.downloadMetadata(MavenPomDownloader.java:255)
org.openrewrite.maven.internal.MavenPomDownloader.downloadMetadata(MavenPomDownloader.java:211)
org.openrewrite.gradle.plugins.AddPluginVisitor.downloadMetadata(AddPluginVisitor.java:95)
org.openrewrite.gradle.plugins.AddPluginVisitor.findNewerVersion(AddPluginVisitor.java:85)
org.openrewrite.gradle.plugins.AddPluginVisitor.resolvePluginVersion(AddPluginVisitor.java:77)
org.openrewrite.gradle.plugins.UpgradePluginVersion$3.visitMethodInvocation(UpgradePluginVersion.java:257)
org.openrewrite.gradle.plugins.UpgradePluginVersion$3.visitMethodInvocation(UpgradePluginVersion.java:206)
org.openrewrite.java.tree.J$MethodInvocation.acceptJava(J.java:3932)
org.openrewrite.java.tree.J.accept(J.java:59)
org.openrewrite.TreeVisitor.visit(TreeVisitor.java:278)
org.openrewrite.TreeVisitor.visitAndCast(TreeVisitor.java:361)
org.openrewrite.java.JavaVisitor.visitRightPadded(JavaVisitor.java:1375)
org.openrewrite.java.JavaVisitor.lambda$visitBlock$4(JavaVisitor.java:401)
org.openrewrite.internal.ListUtils.map(ListUtils.java:176)
org.openrewrite.java.JavaVisitor.visitBlock(JavaVisitor.java:400)

the error im getting also related to upgradepluginversion only right? i've made it bold could you please check @shanman190 @timtebeek

[Sanskarbajaj]

and other recipies like move from java 8 to 17 junit 4 to 5 and all are working so its not related to proxy or its not able to access any particular DNS address

[shanman190]

Just letting you know that 8.16.0 was released a few days ago, so the fix for the secondary issues of the Gradle recipes also trying Maven Central and incorrectly using the first project's repositories was contained within that release.

[Sanskarbajaj]

What's the latest version of gradle plugin? @shanman190
For the moment I'm using 6.8.2 I couldn't find any latest version in docs could you please help