Skip to content

Datastore emulator error on query #1368

Closed
Closed
Datastore emulator error on query#1368
Assignees
pcostell
Labels
api: datastoreIssues related to the Datastore API.

Description

@mik115
mik115
opened on Jun 8, 2016

Hi,
I started using the datastore emulator, installed with this command

gcloud components install cloud-datastore-emulator

version 1.1.0

setted

apiEndpoint: 'http://127.0.0.1:8082'

When i run a simple test code that try to save an entity on datastore i obtain this error:

[datastore] java.lang.RuntimeException: java.lang.NoClassDefFoundError: net/sourceforge/yamlbeans/YamlException
[datastore]     at io.grpc.internal.ServerImpl$JumpToApplicationThreadServerStreamListener$2.runInContext(ServerImpl.java:477)
[datastore]     at io.grpc.internal.ContextRunnable.run(ContextRunnable.java:52)
[datastore]     at io.grpc.internal.SerializingExecutor$TaskRunner.run(SerializingExecutor.java:154)
[datastore]     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
[datastore]     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
[datastore]     at java.lang.Thread.run(Thread.java:745)
[datastore] Caused by: java.lang.NoClassDefFoundError: net/sourceforge/yamlbeans/YamlException
[datastore]     at com.google.appengine.api.datastore.dev.LocalCompositeIndexManager$YamlIndexFileManager.read(LocalCompositeIndexManager.java:598)
[datastore]     at com.google.appengine.api.datastore.dev.LocalCompositeIndexManager.getIndexes(LocalCompositeIndexManager.java:884)
[datastore]     at com.google.appengine.api.datastore.dev.LocalCompositeIndexManager.getIndexesForKind(LocalCompositeIndexManager.java:901)
[datastore]     at com.google.appengine.api.datastore.dev.LocalDatastoreCostAnalysis.changedIndexRows(LocalDatastoreCostAnalysis.java:138)
[datastore]     at com.google.appengine.api.datastore.dev.LocalDatastoreCostAnalysis.getWriteOps(LocalDatastoreCostAnalysis.java:84)
[datastore]     at com.google.appengine.api.datastore.dev.LocalDatastoreService$WriteJob.calculateJobCost(LocalDatastoreService.java:2363)
[datastore]     at com.google.appengine.api.datastore.dev.LocalDatastoreService.commitImpl(LocalDatastoreService.java:1615)
[datastore]     at com.google.appengine.api.datastore.dev.LocalDatastoreService.commit(LocalDatastoreService.java:1562)
[datastore]     at com.google.appengine.api.datastore.dev.DatastoreV3Impl.commit(DatastoreV3Impl.java:57)
[datastore]     at com.google.appengine.api.datastore.dev.CloudDatastoreV1$CanonicalCodeDatastoreV3.commit(CloudDatastoreV1.java:892)
[datastore]     at com.google.appengine.api.datastore.dev.CloudDatastoreV1.commitMutations(CloudDatastoreV1.java:757)
[datastore]     at com.google.appengine.api.datastore.dev.CloudDatastoreV1.applyMutationList(CloudDatastoreV1.java:655)
[datastore]     at com.google.appengine.api.datastore.dev.CloudDatastoreV1.commit(CloudDatastoreV1.java:331)
[datastore]     at com.google.appengine.api.datastore.dev.CloudDatastoreV1.commitNonTransactional(CloudDatastoreV1.java:377)
[datastore]     at com.google.appengine.api.datastore.dev.CloudDatastoreV1.commit(CloudDatastoreV1.java:315)
[datastore]     at com.google.cloud.datastore.emulator.v1.DatastoreEmulator.commit(DatastoreEmulator.java:147)
[datastore]     at com.google.cloud.datastore.emulator.v1.DatastoreEmulatorGrpcAdapter.commit(DatastoreEmulatorGrpcAdapter.java:131)
[datastore]     at com.google.datastore.v1.DatastoreGrpc$MethodHandlers.invoke(DatastoreGrpc.java:570)
[datastore]     at io.grpc.stub.ServerCalls$1$1.onHalfClose(ServerCalls.java:151)
[datastore]     at io.grpc.internal.ServerCallImpl$ServerStreamListenerImpl.halfClosed(ServerCallImpl.java:259)
[datastore]     at io.grpc.internal.ServerImpl$JumpToApplicationThreadServerStreamListener$2.runInContext(ServerImpl.java:471)
[datastore]     ... 5 more
[datastore] Caused by: java.lang.ClassNotFoundException: net.sourceforge.yamlbeans.YamlException
[datastore]     at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
[datastore]     at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
[datastore]     at java.security.AccessController.doPrivileged(Native Method)
[datastore]     at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
[datastore]     at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
[datastore]     at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
[datastore]     at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
[datastore]     ... 26 more
[datastore] 
[datastore] Jun 08, 2016 8:40:10 AM io.grpc.internal.SerializingExecutor$TaskRunner run
[datastore] SEVERE: Exception while executing runnable io.grpc.internal.ServerImpl$JumpToApplicationThreadServerStreamListener$2@20724c76
[datastore] java.lang.RuntimeException: java.lang.NoClassDefFoundError: net/sourceforge/yamlbeans/YamlException
[datastore]     at io.grpc.internal.ServerImpl$JumpToApplicationThreadServerStreamListener$2.runInContext(ServerImpl.java:477)
[datastore]     at io.grpc.internal.ContextRunnable.run(ContextRunnable.java:52)
[datastore]     at io.grpc.internal.SerializingExecutor$TaskRunner.run(SerializingExecutor.java:154)
[datastore]     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
[datastore]     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
[datastore]     at java.lang.Thread.run(Thread.java:745)
[datastore] Caused by: java.lang.NoClassDefFoundError: net/sourceforge/yamlbeans/YamlException
[datastore]     at com.google.appengine.api.datastore.dev.LocalCompositeIndexManager$YamlIndexFileManager.read(LocalCompositeIndexManager.java:598)
[datastore]     at com.google.appengine.api.datastore.dev.LocalCompositeIndexManager.getIndexes(LocalCompositeIndexManager.java:884)
[datastore]     at com.google.appengine.api.datastore.dev.LocalCompositeIndexManager.getIndexesForKind(LocalCompositeIndexManager.java:901)
[datastore]     at com.google.appengine.api.datastore.dev.LocalDatastoreCostAnalysis.changedIndexRows(LocalDatastoreCostAnalysis.java:138)
[datastore]     at com.google.appengine.api.datastore.dev.LocalDatastoreCostAnalysis.getWriteOps(LocalDatastoreCostAnalysis.java:84)
[datastore]     at com.google.appengine.api.datastore.dev.LocalDatastoreService$WriteJob.calculateJobCost(LocalDatastoreService.java:2363)
[datastore]     at com.google.appengine.api.datastore.dev.LocalDatastoreService.commitImpl(LocalDatastoreService.java:1615)
[datastore]     at com.google.appengine.api.datastore.dev.LocalDatastoreService.commit(LocalDatastoreService.java:1562)
[datastore]     at com.google.appengine.api.datastore.dev.DatastoreV3Impl.commit(DatastoreV3Impl.java:57)
[datastore]     at com.google.appengine.api.datastore.dev.CloudDatastoreV1$CanonicalCodeDatastoreV3.commit(CloudDatastoreV1.java:892)
[datastore]     at com.google.appengine.api.datastore.dev.CloudDatastoreV1.commitMutations(CloudDatastoreV1.java:757)
[datastore]     at com.google.appengine.api.datastore.dev.CloudDatastoreV1.applyMutationList(CloudDatastoreV1.java:655)
[datastore]     at com.google.appengine.api.datastore.dev.CloudDatastoreV1.commit(CloudDatastoreV1.java:331)
[datastore]     at com.google.appengine.api.datastore.dev.CloudDatastoreV1.commitNonTransactional(CloudDatastoreV1.java:377)
[datastore]     at com.google.appengine.api.datastore.dev.CloudDatastoreV1.commit(CloudDatastoreV1.java:315)
[datastore]     at com.google.cloud.datastore.emulator.v1.DatastoreEmulator.commit(DatastoreEmulator.java:147)
[datastore]     at com.google.cloud.datastore.emulator.v1.DatastoreEmulatorGrpcAdapter.commit(DatastoreEmulatorGrpcAdapter.java:131)
[datastore]     at com.google.datastore.v1.DatastoreGrpc$MethodHandlers.invoke(DatastoreGrpc.java:570)
[datastore]     at io.grpc.stub.ServerCalls$1$1.onHalfClose(ServerCalls.java:151)
[datastore]     at io.grpc.internal.ServerCallImpl$ServerStreamListenerImpl.halfClosed(ServerCallImpl.java:259)
[datastore]     at io.grpc.internal.ServerImpl$JumpToApplicationThreadServerStreamListener$2.runInContext(ServerImpl.java:471)
[datastore]     ... 5 more
[datastore] Caused by: java.lang.ClassNotFoundException: net.sourceforge.yamlbeans.YamlException
[datastore]     at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
[datastore]     at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
[datastore]     at java.security.AccessController.doPrivileged(Native Method)
[datastore]     at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
[datastore]     at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
[datastore]     at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
[datastore]     at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
[datastore]     ... 26 more
[datastore] 
[datastore] Jun 08, 2016 8:40:14 AM io.grpc.internal.SerializingExecutor$TaskRunner run
[datastore] SEVERE: Exception while executing runnable io.grpc.internal.ServerImpl$JumpToApplicationThreadServerStreamListener$2@7168fb5a
[datastore] java.lang.RuntimeException: java.lang.NoClassDefFoundError: net/sourceforge/yamlbeans/YamlException
[datastore]     at io.grpc.internal.ServerImpl$JumpToApplicationThreadServerStreamListener$2.runInContext(ServerImpl.java:477)
[datastore]     at io.grpc.internal.ContextRunnable.run(ContextRunnable.java:52)
[datastore]     at io.grpc.internal.SerializingExecutor$TaskRunner.run(SerializingExecutor.java:154)
[datastore]     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
[datastore]     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
[datastore]     at java.lang.Thread.run(Thread.java:745)
[datastore] Caused by: java.lang.NoClassDefFoundError: net/sourceforge/yamlbeans/YamlException
[datastore]     at com.google.appengine.api.datastore.dev.LocalCompositeIndexManager$YamlIndexFileManager.read(LocalCompositeIndexManager.java:598)
[datastore]     at com.google.appengine.api.datastore.dev.LocalCompositeIndexManager.getIndexes(LocalCompositeIndexManager.java:884)
[datastore]     at com.google.appengine.api.datastore.dev.LocalCompositeIndexManager.getIndexesForKind(LocalCompositeIndexManager.java:901)
[datastore]     at com.google.appengine.api.datastore.dev.LocalDatastoreCostAnalysis.changedIndexRows(LocalDatastoreCostAnalysis.java:138)
[datastore]     at com.google.appengine.api.datastore.dev.LocalDatastoreCostAnalysis.getWriteOps(LocalDatastoreCostAnalysis.java:84)
[datastore]     at com.google.appengine.api.datastore.dev.LocalDatastoreService$WriteJob.calculateJobCost(LocalDatastoreService.java:2363)
[datastore]     at com.google.appengine.api.datastore.dev.LocalDatastoreService.commitImpl(LocalDatastoreService.java:1615)
[datastore]     at com.google.appengine.api.datastore.dev.LocalDatastoreService.commit(LocalDatastoreService.java:1562)
[datastore]     at com.google.appengine.api.datastore.dev.DatastoreV3Impl.commit(DatastoreV3Impl.java:57)
[datastore]     at com.google.appengine.api.datastore.dev.CloudDatastoreV1$CanonicalCodeDatastoreV3.commit(CloudDatastoreV1.java:892)
[datastore]     at com.google.appengine.api.datastore.dev.CloudDatastoreV1.commitMutations(CloudDatastoreV1.java:757)
[datastore]     at com.google.appengine.api.datastore.dev.CloudDatastoreV1.applyMutationList(CloudDatastoreV1.java:655)
[datastore]     at com.google.appengine.api.datastore.dev.CloudDatastoreV1.commit(CloudDatastoreV1.java:331)
[datastore]     at com.google.appengine.api.datastore.dev.CloudDatastoreV1.commitNonTransactional(CloudDatastoreV1.java:377)
[datastore]     at com.google.appengine.api.datastore.dev.CloudDatastoreV1.commit(CloudDatastoreV1.java:315)
[datastore]     at com.google.cloud.datastore.emulator.v1.DatastoreEmulator.commit(DatastoreEmulator.java:147)
[datastore]     at com.google.cloud.datastore.emulator.v1.DatastoreEmulatorGrpcAdapter.commit(DatastoreEmulatorGrpcAdapter.java:131)
[datastore]     at com.google.datastore.v1.DatastoreGrpc$MethodHandlers.invoke(DatastoreGrpc.java:570)
[datastore]     at io.grpc.stub.ServerCalls$1$1.onHalfClose(ServerCalls.java:151)
[datastore]     at io.grpc.internal.ServerCallImpl$ServerStreamListenerImpl.halfClosed(ServerCallImpl.java:259)
[datastore]     at io.grpc.internal.ServerImpl$JumpToApplicationThreadServerStreamListener$2.runInContext(ServerImpl.java:471)
[datastore]     ... 5 more
[datastore] Caused by: java.lang.ClassNotFoundException: net.sourceforge.yamlbeans.YamlException
[datastore]     at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
[datastore]     at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
[datastore]     at java.security.AccessController.doPrivileged(Native Method)
[datastore]     at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
[datastore]     at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
[datastore]     at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
[datastore]     at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
[datastore]     ... 26 more
[datastore]

Any ideas on how i can make it work?

Thanks in advance

Activity

  1. stephenplusplus
    added
    api: datastoreIssues related to the Datastore API.
    on Jun 8, 2016

  2. stephenplusplus commented on Jun 8, 2016

    @stephenplusplus
    stephenplusplus
    on Jun 8, 2016
    Contributor

    cc @pcostell

  3. pcostell
    self-assigned this
    on Jun 8, 2016

  4. pcostell commented on Jun 8, 2016

    @pcostell
    pcostell
    on Jun 8, 2016
    Contributor

    This looks like a bug in our jar minimizer -- I'll take a look. In the mean time, you may be able to make progress by running the emulator directly $GCLOUD_PATH/platform/cloud-datastore-emulator/cloud_datastore_emulator and passing it the --testing flag, which won't try to read the index.yaml file.

  5. pcostell commented on Jun 10, 2016

    @pcostell
    pcostell
    on Jun 10, 2016
    Contributor

    This should be fixed in the next version of the Cloud Datastore emulator. It will go out with a future version of the Cloud SDK, but if you'd like to get it early you can download it here.

  6. pcostell
    closed this as completedon Jun 10, 2016

  7. mik115 commented on Jun 10, 2016

    @mik115
    mik115
    on Jun 10, 2016
    Author

    @pcostell thanks for the answer,
    unfortunately your link sends on a 404 github page.

  8. stephenplusplus commented on Jun 10, 2016

    @stephenplusplus
    stephenplusplus
    on Jun 10, 2016
    Contributor

    Fixed the link :)

  9. pcostell commented on Jun 10, 2016

    @pcostell
    pcostell
    on Jun 10, 2016
    Contributor

    Thanks @stephenplusplus

  10. JustinBeckwith
    unassigned
    pcostell
    on Sep 19, 2018
  11. JustinBeckwith
    assigned
    pcostell
    on Feb 1, 2021
  12. miguelvelezsa
    added a commit that references this issue on Jan 28, 2026

    test: Initialize gax stream (#1368)

    a89d1e9
  13. sofisl
    added a commit that references this issue on Feb 5, 2026

    test: Initialize gax stream (#1368)

    2105911
  14. sofisl
    added a commit that references this issue on Feb 17, 2026

    test: Initialize gax stream (#1368)

    3091ddb
  15. sofisl
    added 2 commits that reference this issue on Feb 24, 2026

    fix(browser): check for fetch on window (#1368)

    c778c1b

    feat: add support for JSON data type (#1368)

    14b72c1
  16. GautamSharda
    added a commit that references this issue on Mar 5, 2026

    chore(main): release 10.2.3 (#1368)

    2afc8e6
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment

Metadata

Metadata

Assignees

Labels

api: datastoreIssues related to the Datastore API.

Type

No type

Projects

No projects

    Milestone

    No milestone

    Relationships

    None yet

    Development

    No branches or pull requests

    Issue actions