cloudSdkVersion 569.0.0 broke testing Java app-engine on Windows

Google Cloud Serverless Applications
1

I was working on a simple Java app-engine site and got the following error trying to execute mvn package appengine:run on Windows. Specifically, DevAppServerRunner failed to start with an exception (most of stack trace excluded):

[INFO] GCLOUD: java.nio.file.InvalidPathException: Illegal char <:> at index 3: /C:/<remainder of path excluded>
[INFO] GCLOUD:  at java.base/sun.nio.fs.WindowsPathParser.normalize(WindowsPathParser.java:191)

I retested with cloudSdkVersion 568.0.0, DevAppServerRunner started just fine and I was able to complete my test. I pinned the cloudSdkVersion by using the following line in the appengine-maven-plugin configuration section:

  <build>
    ...
      <plugin>
        <groupId>com.google.cloud.tools</groupId>
        <artifactId>appengine-maven-plugin</artifactId>
        <version>2.8.7</version>
        <configuration>
          <projectId>test-site</projectId>
          <version>GCLOUD_CONFIG</version>
          <cloudSdkVersion>568.0.0</cloudSdkVersion>
        </configuration>
      </plugin>
    </plugins>
  </build>

Immediately after testing successfully, I unpinned cloudSdkVersion and it failed again the same way as before.

Don’t know how deep in the stack the root cause may live, but whatever’s adding the leading / to files probably needs to not do that when running on Windows.

2

Looking at the full stack trace, and the release notes for Google Cloud CLI 569.0.0 I’m wondering if this has to do with the upgrade to Jetty 12.1.9.

[INFO] GCLOUD: java.nio.file.InvalidPathException: Illegal char <:> at index 3: /C:/<remainder of path excluded>
[INFO] GCLOUD:  at java.base/sun.nio.fs.WindowsPathParser.normalize(WindowsPathParser.java:191)
[INFO] GCLOUD:  at java.base/sun.nio.fs.WindowsPathParser.parse(WindowsPathParser.java:142)
[INFO] GCLOUD:  at java.base/sun.nio.fs.WindowsPathParser.parse(WindowsPathParser.java:46)
[INFO] GCLOUD:  at java.base/sun.nio.fs.WindowsPath.parse(WindowsPath.java:92)
[INFO] GCLOUD:  at java.base/sun.nio.fs.WindowsFileSystem.getPath(WindowsFileSystem.java:203)
[INFO] GCLOUD:  at java.base/java.nio.file.Path.resolve(Path.java:513)
[INFO] GCLOUD:  at org.eclipse.jetty.util.resource.PathResource.resolveSchemeSpecificPath(PathResource.java:315)
[INFO] GCLOUD:  at org.eclipse.jetty.util.resource.PathResource.resolve(PathResource.java:296)
[INFO] GCLOUD:  at org.eclipse.jetty.ee11.webapp.WebAppContext.getWebInf(WebAppContext.java:760)
[INFO] GCLOUD:  at com.google.appengine.tools.development.jetty.ee11.JettyContainerService.determineAppRoot(JettyContainerService.java:586)
[INFO] GCLOUD:  at com.google.appengine.tools.development.jetty.ee11.JettyContainerService.initContext(JettyContainerService.java:216)
[INFO] GCLOUD:  at com.google.appengine.tools.development.AbstractContainerService.startup(AbstractContainerService.java:280)
[INFO] GCLOUD:  at com.google.appengine.tools.development.AutomaticInstanceHolder.startUp(AutomaticInstanceHolder.java:42)
[INFO] GCLOUD:  at com.google.appengine.tools.development.AbstractModule.startup(AbstractModule.java:101)
[INFO] GCLOUD:  at com.google.appengine.tools.development.Modules.startup(Modules.java:133)
[INFO] GCLOUD:  at com.google.appengine.tools.development.DevAppServerImpl.doStart(DevAppServerImpl.java:275)
[INFO] GCLOUD:  at com.google.appengine.tools.development.DevAppServerImpl.start(DevAppServerImpl.java:228)
[INFO] GCLOUD:  at com.google.appengine.tools.development.DevAppServerMain$StartAction.apply(DevAppServerMain.java:383)
[INFO] GCLOUD:  at com.google.appengine.tools.util.Parser$ParseResult.applyArgs(Parser.java:58)
[INFO] GCLOUD:  at com.google.appengine.tools.development.DevAppServerMain.run(DevAppServerMain.java:239)
[INFO] GCLOUD:  at com.google.appengine.tools.development.DevAppServerMain.main(DevAppServerMain.java:230)
3

I’ve moved this to Issues · GoogleCloudPlatform/appengine-java-standard · GitHub which I understand is the best place to post issues like this.