When using buildpack without docker running gets a meaningless exception

[lordofthejars]

Description

When using buildpack without docker running gets a meaningless exception:

[ERROR] Failed to execute goal io.quarkus.platform:quarkus-maven-plugin:2.7.1.Final:build (default) on project hello: Failed to build quarkus application: io.quarkus.builder.BuildException: Build failure: Build failed due to errors
[ERROR] 	[error]: Build step io.quarkus.container.image.buildpack.deployment.BuildpackProcessor#buildFromJar threw an exception: java.lang.RuntimeException: java.io.IOException: com.sun.jna.LastErrorException: [2] No such file or directory
[ERROR] 	at com.github.dockerjava.httpclient5.ApacheDockerHttpClientImpl.execute(ApacheDockerHttpClientImpl.java:187)
[ERROR] 	at com.github.dockerjava.httpclient5.ApacheDockerHttpClient.execute(ApacheDockerHttpClient.java:9)
[ERROR] 	at com.github.dockerjava.core.DefaultInvocationBuilder.execute(DefaultInvocationBuilder.java:228)
[ERROR] 	at com.github.dockerjava.core.DefaultInvocationBuilder.get(DefaultInvocationBuilder.java:202)
[ERROR] 	at com.github.dockerjava.core.DefaultInvocationBuilder.get(DefaultInvocationBuilder.java:74)
[ERROR] 	at com.github.dockerjava.core.exec.ListImagesCmdExec.execute(ListImagesCmdExec.java:41)
[ERROR] 	at com.github.dockerjava.core.exec.ListImagesCmdExec.execute(ListImagesCmdExec.java:16)
[ERROR] 	at com.github.dockerjava.core.exec.AbstrSyncDockerCmdExec.exec(AbstrSyncDockerCmdExec.java:21)
[ERROR] 	at com.github.dockerjava.core.command.AbstrDockerCmd.exec(AbstrDockerCmd.java:35)
[ERROR] 	at dev.snowdrop.buildpack.docker.ImageUtils.pullImages(ImageUtils.java:39)
[ERROR] 	at dev.snowdrop.buildpack.Buildpack.prep(Buildpack.java:218)
[ERROR] 	at dev.snowdrop.buildpack.Buildpack.build(Buildpack.java:102)
[ERROR] 	at dev.snowdrop.buildpack.Buildpack.<init>(Buildpack.java:96)
[ERROR] 	at dev.snowdrop.buildpack.EditableBuildpack.<init>(EditableBuildpack.java:16)
[ERROR] 	at dev.snowdrop.buildpack.BuildpackBuilder.build(BuildpackBuilder.java:72)
[ERROR] 	at io.quarkus.container.image.buildpack.deployment.BuildpackProcessor.runBuildpackBuild(BuildpackProcessor.java:188)
[ERROR] 	at io.quarkus.container.image.buildpack.deployment.BuildpackProcessor.buildFromJar(BuildpackProcessor.java:82)
[ERROR] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
[ERROR] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
[ERROR] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
[ERROR] 	at java.base/java.lang.reflect.Method.invoke(Method.java:564)
[ERROR] 	at io.quarkus.deployment.ExtensionLoader$2.execute(ExtensionLoader.java:882)
[ERROR] 	at io.quarkus.builder.BuildContext.run(BuildContext.java:277)
[ERROR] 	at org.jboss.threads.ContextHandler$1.runWith(ContextHandler.java:18)
[ERROR] 	at org.jboss.threads.EnhancedQueueExecutor$Task.run(EnhancedQueueExecutor.java:2449)
[ERROR] 	at org.jboss.threads.EnhancedQueueExecutor$ThreadBody.run(EnhancedQueueExecutor.java:1478)
[ERROR] 	at java.base/java.lang.Thread.run(Thread.java:832)
[ERROR] 	at org.jboss.threads.JBossThread.run(JBossThread.java:501)
[ERROR] Caused by: java.io.IOException: com.sun.jna.LastErrorException: [2] No such file or directory
[ERROR] 	at com.github.dockerjava.transport.DomainSocket.<init>(DomainSocket.java:63)
[ERROR] 	at com.github.dockerjava.transport.BsdDomainSocket.<init>(BsdDomainSocket.java:43)

You can get what's happening but for a newbie maybe a better message could be provided like No Docker Host.

Implementation ideas

No response

[quarkus-bot]

/cc @geoand

[geoand]

cc @iocanel @BarDweller