You can download the latest version of the SDK here Version 1.6.2 - January 31, 2012- The Admin Console Datastore Admin has added experimental backup and restore functionality. The job occurs within your application and counts against your application quota, including Instance Hours, Datastore Ops and Datastore Storage.
- Developers can now specify how long a channel token will last until it expires, with the default remaining two hours. Channel API quota is now measured both in calls to create a channel and the number of hours of channel time requested. The maximum hours of quota is the maximum number of channel creation calls * 2, so free apps get 200 hours of requested channel token time.
- Task Queue API requests now include a X-Appengine-TaskETA header, that can be used to measure task delivery latency.
- We have removed the deprecated labs version of the TaskQueue API.
- The default API deadlines for Blobstore API calls have been raised to 15s for online and 30s for offline requests, up from 5s.
- The Images API now allows you to stretch an image without maintaining the aspect ratio.
- Mail Quota for App Engine apps that have signed up for billing will only be increased after the first payment for the app is processed.
- Fixed an issue where the dev_appserver did not resize images down to 512 pixels by default, as it does in production.
- Fixed an issue with the Images API where valid images were returning a NotImageError.
Version 1.6.1 - December 13, 2011- You can now configure Frontend Instance Classes from your Admin Console's application settings page. Three classes are available, with increasing memory, CPU limits, and associated cost. By default, all applications use the basic frontend instance setting of 128MB memory and 600MHz CPU.
- We've added new functionality to the Log API that will allow you to read your application's logs programmatically.
- We are releasing an experimental Conversion API that will allow you to convert between document types including .doc, .html, .pdf, images using OCR, and more.
- The High Replication Datastore migration utility is now available as a GA feature, and is no longer experimental.
- The dev appserver now emits a warning when loading any classes that fall under com.google.appengine.repackaged.*.
- Version 2.0.0 of the DataNucleus App Engine plugin is available as an experimental download from http://goo.gl/kyQiO. This release adds support for JPA2 and JDO3. Installation instructions are available at http://goo.gl/ELBL4.
- The Blobstore API now supports the multiple="true" attribute to the HTML input tag.
- TaskOptions.Param now implements Serializable.
- Fixed an issue in the SDK where logging null caused a 500 error.
- Fixed an issue with backends where SessionManager might try to save a session forever under certain circumstances.
- Fixed an issue where cached static files served to IPs on the DoS blacklist consumed bandwidth quota.
Version 1.6.0 - November 7, 2011- On November 7th, App Engine will be out of Preview. The new Terms of Service and previously announced pricing changes will be in effect. Additionally, all paid apps are now covered by our SLA.
- Paid apps can now specify the maximum pending latency for instances and the minimum number of idle instances for your application in the Admin Console.
- Task Queue storage has been separated in to its own line item. Previously, this was included in Datastore storage.
- We have released an experimental utility, available in the Admin Console, to assist in migrating your application to the High Replication datastore. This utility allows you to copy the bulk of your data in the background, while the source application is still serving. You then need a brief read-only period to migrate your application data while you copy the data that has changed from the time the original copy started.
- Blobstore, which was previously limited to apps with billing enabled, is now available for all apps.
- We have published a new article on Datastore Index Selection and Advanced Search which explains our recent improvements to the query planner that make exploding indexes unnecessary.
- Applications can now receive XMPP error stanzas at /_ah/xmpp/error.
- In the Admin Console data viewer, you can now filter by namespace from a drop down menu, if applicable.
- In the Admin Console's Datastore Statistics, we now offer namespace suggest for filtering stats.
- Added API functionality for making calls to the Memcache API asynchronously.
- In the Memcache API, getIdentifiable() and putIfUntouched() now support batch operations.
- We've added a page, /_ah/admin/capabilitiesstatus, to the dev console that allows you to configure the capability state of the local API implementations when running locally.
- We've added LocalCapabilitiesServiceTestConfig to the testing API, which allows you to configure the capability state of the local API implementations in your tests.
- The Datastore API now supports callbacks that can execute before or after put() and delete() calls.
- The queue-name argument is now optional for async-session-persistence in appengine-web.xml.
- Fixed a ClassNotFound error when using async-session-persistence.
- Fixed an issue with memcache serialization when using a entity key with a name that points to the same reference as the key's parent.
- Fixed an issue where DoS stats in the Admin Console didn't work for High Replication apps.
- WARNING: Starting with 1.6.1 (our next release, NOT this release), URLFetch requests will honor the Accept-Encoding header. If your code sets this header, then it must be prepared to receive content of the specified type. For more information please see
Version 1.5.5 - Oct 11, 2011- We have increased the number of files you can upload with your application to from 3,000 to 10,000.
- We have increased the size limit for a single file uploaded to App Engine from 10MB to 32MB.
- We have increased the Frontend request deadline from 30 seconds to 60 seconds.
- We have increased the online URLFetch maximum deadline from 10 seconds to 60 seconds. The default deadline remains at 10 seconds. The offline maximum deadline for URLFetch remains at 10 minutes.
- We have increased the URLFetch Post payload from 1MB to 5MB.
- App Engine now supports Cross Group (XG) transactions with the High Replication Datastore, which allow you to perform transactions across multiple entity groups. http://code.google.com/appengine/docs/java/datastore/transactions.html
- We have added a graph to the admin console that displays the number of instances for which you will be billed.
- In the XMPP API, getPresence() is deprecated in favor of using the inbound presence handlers documented in http://code.google.com/appengine/docs/java/xmpp/overview.html#Handling_User_Presence.
- Fixed an issue in the Admin Console where the "Run Now" button did not work for tasks with a '-' in the name.
- Fixed an issue to provide a better error message when a user tries to parse an HttpRequest's input stream more than once in a request.
- Fixed an issue to provide a better error message when using the Mail API to send email to an invalid user address.
- Fixed an issue in the SDK where HttpServletRequest.getInputStream().read() always returned -1. http://code.google.com/p/googleappengine/issues/detail?id=5396
- Fixed an issue where you could not schedule a cron job to run every 100 minutes. http://code.google.com/p/googleappengine/issues/detail?id=5861
Version 1.5.4 - Sep 12, 2011- You can now specify the maximum size for a blob in BlobstoreService.createUploadUrl().
- Zigzag merge join queries will now continue scanning up to the 30 second Datastore query deadline. For zigzag queries that used to generate DatastoreNeedIndexException, many will now succeed. A small percentage will now instead timeout.
- The SDK datastore viewer in the dev console now displays the number of "Write Ops" for each entity. "Write Ops" are the total number of entity and index writes that were required to create the entity.
- The Prospective Search API is available in Java for all applications. This API is still experimental, so applications will be limited to a maximum of 1000 subscriptions.
- We made a classloading improvement that we expect to help loading request latencies for projects with large numbers of jars.
- Added support for the set_default_version flag to Appcfg.
- The Java Remote API now recognizes the HTTP_X_APPENGINE_INBOUND_APPID. This means that the Datastore Admin copy functionality will work when using Java's Remote API with the destination app.
- Fixed an issue that incorrectly allowed creation of tasks with whitespace in the url.
- Fixed the error message for "transaction not found" to be more descriptive.
- Fixed an issue with the dev appserver's local Blobstore implementation trying to modify an immutable collection.
- Fixed an SDK issue affecting GWT applications where CONFIG, FINE, FINER, FINEST logging messages were not displayed.
Version 1.5.3 - Aug 17, 2011- We've removed the limit on the size of blob uploads using the Blobstore API.
- You can now send emails with any attachment extension that is not included on the email attachment extension blacklist.
- Added a getIndexes() method to the DatastoreService to retrieve an application's indexes and their corresponding states.
- The development server has been updated to understand the reduced index requirements, thanks to the 1.5.2 datastore query planner changes.
- The Datastore Admin functionality can now be enabled directly in the Admin Console.
- You can now use Remote API to access the services of one App Engine application from a different App Engine application.
- The Java Testing APIs now default to UTC if no timezone is specified.
- AppCfg / appcfg.sh now supports download_app, which will download all files that were uploaded from your war directory.
- AppCfg / appcfg.sh now supports the -V (version) and -A (application) flags.
- Added app_identity api with methods to work with service accounts for asserting identity on outbound HTTP calls.
- Added an improved HRD migration tool that requires a read-only period relative to your datastore write rate (as opposed to your datastore size, which is how the current version behaves). The tool is not yet generally available. If you are interested in being an early adopter please fill out this form:
- Fixed an issue in the Channel API where jsapi was not served with the correct MIME type.
- Fixed an issue where blobs could not be uploaded using HTTPS.
- Fixed an issue where GQL didn't allow querying for valid kind names containing '.', '-', and ':' by supporting quoted identifiers.
Version 1.5.2 - July 21, 2011- You can now specify the minimum pending latency for instances and the maximum number of idle instances for your application in the Admin Console.
- The datastore now never requires an exploding index.
- The SDK will now never suggest indexes with the same property repeated, as such indexes are likely to be exploding indexes.
- Datastore stats are now available on a per-namespace basis.
- The queue details page in the Admin Console now contains request header details, previous run information, and a task payload viewer.
- You can modify the lease on a task leased from a pull queue using the modifyTaskLease() method.
- Pull Task maximum size has been increased to 1MB.
- You can now update the number of available backend instances without needing to first stop the backend using the backend configure appcfg directive.
- You can now set the References and In-Reply-To headers with the Mail API.
- The whitelist has been updated to include support for JSR 105.
- When the SDK throws a DatastoreNeedIndexException for a missing index definition, the exception can now be caught.
Version 1.5.1 - June 20, 2011- The development server's datastore and testing service implementations now contains logic that closely replicates the consistency guarantees of the High Replication datastore. To use, run the dev_appserver with the flag -Ddatastore.default_high_rep_job_policy_unapplied_job_pct=20.
- All user request have an X-AppEngine-Country header which contains the ISO-3166-1 alpha-2 country code for the user, based on the IP address of the client request.
- Applications are now associated with an app_identity, which can be used to authenticate requests originating from the app to other services.
- The Channel API can now provide user presence, this can be configured by adding channel_presence to the list of inbound services for your application.
- The Images API now supports the WebP format.
- You can switch the timezone for App Engine logs in the Admin Console.
- Added javax.xml.ws.Service$Mode to the whitelist.
- You can configure your application to asynchronously write HTTP session data by adding <async-session-persistence enabled="true"/> to your appengine-web.xml.
- The local task queue unit testing API now supports Deferred Tasks.
- Fixed an issue where using reserved URLs did not cause an error in the SDK.
- Fixed an issue where having a backends.xml configuration file caused logging to stdout to fail in the SDK.
- Fixed an issue where the Channel API didn't work with non-default versions of applications using the High Replication datastore.
- Fixed an issue where the Remote API rtok comparison was broken for some users, causing appfcg download data to fail.
- Fixed an issue with the SDK where you could not apply a transform to PNG images. http://code.google.com/p/googleappengine/issues/detail?id=3458
- When displaying corrupt data in the Admin Console dataviewer, a useful error will be displayed, instead of a 500.
- Fixed an issue with the SDK where non-string index names caused an error upon upload. http://code.google.com/p/googleappengine/issues/detail?id=5004
- Datanucleus now supports polymorphic relationships.
- Datanucleus now supports PreparedQuery#countEntities(FetchOptions).
- Fixed an issue with datanucleus where recursive relation did not work.
Version 1.5.0.1 - May 16, 2011- Fixed a bug that caused appengine-jsr107cache-1.5.0.jar to be empty.
Version 1.5.0 - May 10, 2011- Support for Backends which allow developers to create infrastructure components that complement the existing dynamic apps that App Engine already provides. Instances of a backend can maintain state, be addressed individually, and are not subject to per-request time limits. They can also be configured to consume more memory and CPU than ordinary dynamic instances.
- Task Queues support pull mode, allowing for more control over task queue work rates. To use pull queues, include the 'mode' element in your queue.xml.
- Pull queues are supported by a REST API, allowing access from outside App Engine. To use the REST API, you must also include a valid ACL section specifying which users can lease tasks from the pull queue.
- Task Queue payload limits have been increased. Queues support 100KB per task. Within App Engine, the new limit is 32 MB per batch of tasks. With the REST API the limit is 1 MB per batch.
- HTTP request and response sizes have been increased to 32 MB.
- We have removed the rate quotas for requests, datastore operations, memcache operations, and image API operations. Resource quotas still apply.
- When creating new applications, developers will now see the High Replication Datastore as the default configuration option. Developers that still wish to use the Master/Slave configuration must explicitly choose this option at application creation time.
- The Task Queue maximum configurable processing rate has been increased to 500/s.
- Modified Dashboard latency graphs to indicate they only include dynamic requests.
- We have added two restrictions to the Mail API to improve the reliability of the service for all applications.
- Emails must be sent from email accounts managed by Google (either Gmail or a domain signed up for Google Apps).
- Reduced the number of free recipients per day from 2000 to 100 for new applications.
- Fixed an issue where the Javadoc for the File API was not generated.
- Fixed an issue where the API Deadlines were not being enforced in the SDK.
- Fixed an issue with Federated Users causing the Admin Console dataviewer to fail.
- Fixed an issue causing SDK URL Fetch not to work behind proxy.
- Fixed an issue deploying an app with version set to 0.
- Improved support for reserving an app id that is a canonicalized version of a user's Gmail address.
- Added a more useful error message for unavailable App Ids.
- Added clearer error messaging for invalid transactions in the SDK.
- Added better error messages for cron.xml parsing.
- Entity constructors are now consistent with KeyFactory constructors.
- Task Queue names can now include the "" character.
- he sender of an email is no longer BCC'd when they are already included in the email.
- Added a more helpful error message when trying to send email to a malformed address.
- The SDK now returns an error if the Content-length header is not included in a post request, matching production.
- Fixed an issue where the wrong type of error was being thrown on HTTP request timeout.
- Fixed an issue where the Admin Console didn't keep the app version viewed consistent across actions.
- Added Javadocs for TaskOptions.taskName().
- Fixed a typo in the Admin Console on the New App page.
- Fixed an issue where sending mail from an app registered on the HR datastore required the app id be prefaced with s~.
- Fixed an issue where HTTP POST was broken in the SDK if the Content-Length header was specified.
Version 1.4.3 - March 30, 2011- Added FileService API that allows writing to and reading from files in blobstore.
- You can now specify cron execution for a time interval between a start and end time.
- You can now configure the specific application version to which a task queue or cron job will send requests.
- The Admin Console Task Queues page now displays a more accurate estimate of queue size for queues containing more than 2000 tasks.
- Java applications can enable concurrent request support by setting <threadsafe> to True in their appengine-web.xml. This flag indicates that request handlers for your app are thread safe and multiple request handlers may safely run at the same time in the same memory space for your application.
- Deferred library support now available in Java.
- Remote API library now available in Java. This can be used in conjunction with apps using either the Java or the Python runtime.
- The Java SDK now supports kindless and ancestor only queries.
- Fixed an issue where JAX-WS clients in the SDK could not handle receiving a SOAP fault.
- Fixed an issue where the SDK did not support fetching HTTPS URLs.
- Fixed an issue where no link was displayed in the Admin Console blobstore viewer for an unnamed blob.
- Fixed an issue where the Admin Console data viewer couldn't edit entities with ByteString properties.
- Fixed an issue where the Admin Console crashed when using a non-ascii key_name.
- The Disable Application admin function has been button-ized.
- Fixed a regex validation issue in the queue.xml file that caused some uploads to break.
- Fixed an issue where the Java SDK Task Queue did not support 10 minute timeouts.
- Fixed an issue where the Channel API in the SDK didn't properly send messages with unicode characters.
Version 1.4.2 - February 11, 2011- You can now vacuum datastore indexes with the Java SDK.
- The XMPP API was updated to include presence and allow subscriptions.
- The Task Queue now supports programmatic deleting of tasks.
- The maximum rate per queue at which tasks are processed has been increased to 100 tasks per second.
- The maximum number of concurrent requests for a single queue can be specified in the application's queue.xml. This provides an additional easy-to-use form of rate limiting. The current number of running tasks is also displayed in the Admin Console.
- Metadata queries in the Datastore now support cursors.
- Admin Console logs viewer now displays time as YYYY-MM-DD HH:MM:SS.mmm.
- Added a warning when an admin tries to upload a queue.yaml where the number of new queues and the number of disabled queues exceeds 100.
- Added a putIfUntouched() method to the Memcache API.
- Added JAX-WS support for writing SOAP clients and SAAJ support for writing SOAP servers. JAX-WS for SOAP servers is not yet supported.
- The Mail API added KML and KMZ files as allowed attachments.
- Fixed an issue where mail from @appid.appspotmail.com did not work when sending mail to app admins.
- Fixed an issue where the SDK did not enforce the 100 task limit for the Task Queue.
- Fixed an issue where the Java SDK URLFetch did not support 32MB response sizes.
- Fixed an issues where <jsp-file> mappings in web.xml were broken.
Version 1.4.0 - December 02, 2010- The Always On feature allows applications to pay and keep 3 instances of their application always running, which can significantly reduce application latency.
- Developers can now enable Warmup Requests. By specifying a handler in an app's appengine-web.xml, App Engine will attempt to send a Warmup Request to initialize new instances before a user interacts with it. This can reduce the latency an end-user sees for initializing your application.
- The Channel API is now available for all users.
- Task Queue has been officially released, and is no longer an experimental feature. The API import paths that use 'labs' have been deprecated. Task queue storage will count towards an application's overall storage quota, and will thus be charged for.
- The deadline for Task Queue and Cron requests has been raised to 10 minutes. Datastore and API deadlines within those requests remain unchanged.
- For the Task Queue, developers can specify task retry-parameters in their queue.xml.
- Apps that have enabled billing are allowed up to 100 queues with the Task Queue API.
- Metadata Queries on the datastore for datastore kinds, namespaces, and entity properties are available.
- URL Fetch allowed response size has been increased, up to 32 MB. Request size is still limited to 1 MB.
- The request and response sizes for the Images API have been increased to 32 MB.
- The total size of Memcache batch operations is increased to 32 MB. The 1 MB limit on individual Memcache objects still applies.
- The attachment size for outgoing emails has been increased from 1 MB to 10 MB. The size limit for incoming emails is still 10 MB.
- Size and quantity limits on datastore batch get/put/delete operations have been removed. Individual entities are still limited to 1 MB, but your app may batch as many entities together for get/put/delete calls as the overall datastore deadline will allow for.
- When iterating over query results, the datastore will now asynchronously prefetch results, reducing latency in many cases by 10-15%.
- The Admin Console Blacklist page lists the top blacklist rejected visitors.
- The automatic image thumbnailing service supports arbitrary crop sizes up to 1600px.
- Overall average instance latency in the Admin Console is now a weighted average over QPS per instance.
- Added a low-level AysncDatastoreService for making calls to the datastore asynchronously.
- Added a getBodyAsBytes() method to QueueStateInfo.TaskStateInfo, this returns the body of the task state as a pure byte-string.
- The whitelist has been updated to include all classes from javax.xml.soap.
- Fixed an issue sending email to multiple recipients.
- Revert the default logging level during GWT hosted mode back to INFO.
- Fixed an issue with OpenId over SSL.
Version 1.3.8 - October 14, 2010- You can run task queue tasks immediately from the admin console.
- Added an OutputSettings class to the Images API to specify the JPEG encoding quality when running in production.
- Support for login of multiple Google accounts within an app, and longer login sessions. For more information see:
- In queue.xml, the maximum allowed bucket size is now 100.
- Removed limits on zigzag merge-join queries. Therefore the error "The built-in indices are not efficient enough for this query and your data. Please add a composite index for this query." will no longer be thrown in most cases, enabling more types of queries without indexes.
- The whitelist has been updated to include java.net.InetAddress and some interfaces and abstract classes in javax.xml.soap, including javax.xml.soap.SOAPMessage.
- Fixed an issue reserving App Ids by owners of emails containing periods, multiple cases, and googlemail.com address.
- Fixed an issue where TaskOptions had no public getters, making testing impossible.
- Fixed an issue on the development server where PNGs were being returned as JPEGs.
Version 1.3.7 - August 30, 2010- Fixed an SDK issue where calling getServingUrl raised an exception.
Version 1.3.6 - August 17, 2010- Multitenancy is now supported in the datastore, allowing better compartmentalization of user data.
- Automatic image thumbnailing is now available in the Images API using getServingUrl.
- Users can now serve custom static error pages for over_quota, dos_api_denial and default cases.
- Results of datastore count() queries and offsets for all datastore queries are no longer capped at 1000.
- Added a pause queue button to the task queue details page in the Admin Console.
- Historical graphs have been added to all of the dashboard graphs in the Admin Console.
- Content-range headers are supported on Blobstore downloads.
- New method to allocate datastore ids in a given range: allocateIdRange()
- The app.yaml format is supported with Java applications.
- Increased several rate limited quotas for free applications.
- Fixed an issue that did not allow forms of over 200,000 bytes to be submitted.
Version 1.3.5 - June 30, 2010- Ability to configure the Task Queue storage limit with the total-storage-limit field in the queue.xml file.
- Task Queues now support up to 50 qps per queue, up from 50 qps per app.
- Developers can programmatically access Blobs with BlobstoreInputStream, which provides an InputStream view of a blob in Blobstore.
- Bulkloader transform helpers for lists and hierarchical keys were added.
- remote_api_shell commands can be sent over HTTPS or HTTP.
- Admin Console logs now include information on request time latency.
- The datastore now supports end cursors.
- Fixed an issue where requesting /appstats would not properly direct to /appstats/.
- Fixed an issue with inconsistent URL mappings between the SDK and production.
Version 1.3.4 - May 19, 2010- Client side bulkloader available with the Python SDK that has a new configuration syntax and wizard for easier import/export with the datastore. Can be used by enabling remote_api in your Java application
- Applications can now be configured to authenticate with OpenID by selecting the OpenID option when creating your application in the admin console
- New API to allow App Engine apps to act as OAuth service providers
- The version update check in the Java SDK now uses https
- Allow full access to javax.el.*
- Increased the timeout during deployment to 15 minutes
- Fixed an issue with JPA where an illegal cast exception was thrown during the fetch of integer fields
- MemcacheService.setNamespace() is deprecated in favor of MemcacheServiceFactory.getMemcacheManager(namespace)
- Support in the SDK for Java 1.5 is being deprecated. These warnings now appear when starting the SDK
Version 1.3.3 - April 21, 2010- Added two new system properties com.google.appengine.application.id and com.google.appengine.application.version
- DeadlineExceededException is now always thrown before HardDeadlineExceededError
- Decreased likelihood of "Too many URLMap" deployment errors for complex web apps
- Fixed an error where QuotaService.getCpuTimeInMegaCycles() was returning cycles instead of megacycles
- Fixed an issue between differing behavior of jsp in the production and development environments
- Fixed an issue uploading webapps with .tag files
Version 1.3.2 - March 25, 2010- New API to read the contents of uploaded Blobs (fetch_data)
- URLFetch now supports accessing ports 80-90, 440-450, and 1024-65535
- Mail API now allows common document formats as attachments
- The Task Queue API now supports adding multiple tasks in a single call to Queue.add()
- Fixed charset handling for inbound emails
- Fixed issue with compositing background colors in dev_appserver
- New feature in the datastore to specify whether to use strong or eventually consistent reads (the default is strong)
- New datastore feature allows setting deadlines for operations
- Increased the maximum Task Queue refill rate from 20/s to 50/s
- Support for IP blacklisting to prevent denial of service (DoS) attacks
- App Stats is now available for the Java SDK in addition to Python
- Fix issue with expiration times not being reset on Put on the Memchache API
- Fix issue preventing static files from being served when a servlet is mapped to root
JDO/JPA Changes- Support default rpc deadlines and query-specific deadlines
- Support default read consistency config and query-specific read consistency config
Version 1.3.1 - February 10, 2010- Datastore Query Cursors
- Transactional Tasks
- Support for Custom Admin Console pages
- Java Precompilation is now on by default
- Developers can opt-out of precompilation by setting the flag in appengine-web.xml: <precompilation-enabled>false</precompilation-enabled>
- New built-in support for unit testing (see appengine-testing.jar)
- net.sf.jsr107 package included as an alternative to the low-level Memcache API
- javax.annotation.Resource/Resources added to the package whitelist
- New "month" and "synchronized" syntax for Cron configuration
- URLFetch supports asynchronous requests
- appcfg.sh uses HTTPS for application deployment
- appcfg.sh adds request_logs --append
- Changes to the order queries without a specified sort order are returned
- Only queries that use IN will see different results.
- Added support for multiple != filters on the same property
- Improved support for keys-only queries when using IN and != filters
- Support for ETags, If-matches, If-not-matches HTTP Headers, as well as 304 status codes now available on static files (not yet available on the dev_appserver or Blobstore blobs)
- Fixed issue where the maximum transform count was enforced for composite operations
- Fixed issue with whitespace on the end of strings in web.xml
- Fixed web.xml <error-page> entries for 404 error codes
- Added validation prevent welcome-files with absolute paths
- Fixed issue where cancelling a deployment in progress could unintentionally corrupt the SDK
- Fixed issue with QuotaService.getCpuTimeInMegaCycles() returning 0
- Fixed issue where JSP exceptions will be incorrectly cast causing a ClassCastException
JDO/JPA Changes- Child object with custom pk column can't be saved
- Queries with multiple contains() where one filter is on pk don't work
- Throw exception when filtering or sorting by pk-id or pk-name fields
- Throw exception when filtering or sorting by pk-id or pk-name fields
- Store child keys in a multi-value property on the parent
- Incorrect exception for multiple fields of same type
- Non-persistent base classes do not work
- Relationships in abstract base classes don't work
- Explicitly disallow multiple relationships of the same type
- Occasional ArrayOutOfBoundsIndexException
- Support inheritance
- Support != queries
- Support IN queries
- Support datastore cursors
- Inheritance is working for simple fields and embedded fields. Relationships in base classes are completely untested and probably do not work.
- Cannot add child to existing one-to-many if parent has Long or unencoded String pk
- Can't query by embedded fields at depth > 1
- Positional parameters don't work (JPQL)
- Throw JDOCanRetryException when ConcurrentMod hit during txn commit
- Respect JDOQL/JPQL case sensitivity for keywords, in particular "count"
- Put all native datastore types in the default fetch group
- Empty Set gets loaded from datastore as null
- Cannot remove element of one to many when parent has pk of type Long or unencoded String
- Severe problem when deleting a child object from an owned relationship (JDO)
- NPE resulting from corrupt JDOQL query
- Embedded, multi-value fields don't work
Version 1.3.0 - December 14, 2009- Adds support for the new Blobstore API
- New com.google.appengine.runtime.{version,environment} system properties (and a SystemProperty accessor class)
- New sample applications for GWT 2.0
- Optimizations for many reflection operations
- Incorrect exception for multiple fields of same type
- Non-persistent base classes do not work
Service Changes- Added new Blobstore Viewer to Admin Console
Version 1.2.8 - December 3, 2009- Support for JAXB. JAXB is included in JDK 1.6 (and App Engine's production servers). If you're using JDK 1.5 with your local dev_appserver, you will need to include the JAXB libraries with your application to use it.
- New support for application pre-compilation to reduce the length of loading requests. To enable pre-compilation on your application, add this flag to your appengine-web.xml:
- <precompilation-enabled>true</precompilation-enabled>
- If you have trouble deploying your application, you should remove this flag or set it to false.
- Added Quota API (com.google.appengine.api.quota) to match Python
- Low-level Memcache API now supports incrementAll()
- HTTPResponse object now has getFinalUrl() method for 302 redirects.
- Java Dev Appserver now automatically executes tasks. If you prefer the old behavior where tasks do not automatically execute you can use the --jvm_flag=-Dtask_queue.disable_auto_task_execution flag when starting the server.
- Additional file extensions permitted when sending mail.
- Fixed issue with Java mail handler not processing multipart messages correctly
- Fixed agent code included in appengine-local-runtime.jar results in RuntimeException
- Fixed issue with sort orders defined on properties that allow multiple values
- Fixed problem with dropped query strings after requiring log-in
- Removed limitation preventing multiple parameters with the same name
- Fixed issue with local datastore incorrectly sorting results of ancestor queries
Version 1.2.6 - October 13, 2009- Add support for handling incoming email
- New AllocateIDs method for pre-allocating IDs as part of a large batch write
- Default queue URL changed to match Python
- New Appcfg.sh actions: cron_info, update_queues
- Development Appserver Admin Console changes: Task Queue tweaks and new XMPP Admin page
- Class whitelisting support added to the development appserver which support should bring the local environment closer to hosted environment
- ssl-enabled set to true by default
- New Datastore stats api. Stats are also visible in the admin console.
Version 1.2.5 - September 3, 2009- Ability to send and receive instant messages via the XMPP protocol.
- API for the experimental Task Queue service, matching the existing API in Python.
- Support for new datastore types such as GeoPt, Link, and Email.
- Adds new datastore method AllocateIds() for allocating a block of numeric IDs to use for creating new entities
- Adds ability to start key names with a digit.
- Support for setting the Referrer header in URL Fetch requests.
- Support for extending the deadline on URL Fetch requests up to 10 seconds using the java.net.URLConnection interface.
- Support for adjusting the MIME types used with static files.
- Support for controlling the browser cache expiration duration of static files.
- XPath is now usable without requiring additional workarounds.
- Support for the Stax API, javax.xml.stream. You can now use both the JDK's Stax parser as well as third-party Stax libraries like Woodstox.
- Fixed issues with deserialization of certain classes often encountered while using HttpSessions
JDO/JPA Changes- Support delete by query (JPA)
- Support delete by query (JDO)
- pm.makePersistentAll() should use batch puts
- Query by key name when pk is encoded String or Key
- Exception: {Primary keys are immutable} thrown when cascadingly deleting of children with "gae.pk-name" field
- Make it clear that @Unique and @Uniques are not supported
- Warn when child fields marked for Eager/Lazy fetching
- Better error message for JPQL update statements
- Queries don't respect fetch groups
- Exception deleting object with gae.parent-pk field
- Allow embedded field restrictions in queries (JDO/JPA)
- Cannot modify two fields in the embedded class in one transaction
- Add operator LIKE support for JPA
- fail to serialize field that is PC -- message "Specified class class com.google.appengine.api.datastore.Blob is not persistable"
- Collection<Byte> anomaly
- Upgrade to DataNucleus 1.1.5
- More sensible error when ancestor query param is null.
- JPQL: MEMBER OF only supported when args are in the wrong order
- Make it clear that ManyToMany is not supported
- Issuing an ancestor query when a jdo/jpa txn has been started does not actually start a txn
- pm.deletePersistentAll() should use batch deletes
- Support sequences
- JPA support for JPQL functions CURRENT_TIMESTAMP, CURRENT_DATE
- Support 'is not null' in queries
Version 1.2.2 - July 13, 2009- Fix memcache stub to not allow decrementing below 0.
- Allow cron tasks to be sent to admin-only servlets.
- The images API no longer goes into an infinite loop parsing certain images.
- Replicate static file handling in the DevAppServer more correctly.
- Prefix all built-in servlets with _ah to ensure they don't interact with user-supplied servlets.
- Add OverQuotaException and RequestTooLargeException for API calls.
- Fix generation of indexes that query by the same property multiple times.
- Fix generation of indexes kind queries that sort in descending order.
- Provide a servlet for session cleanup.
- Try to prompt for a password using Swing in AppCfg if running Java 1.5.
- Better emulate datastore transaction support in the DevAppServer.
- New -p option to AppCfg for connecting to App Engine via a HTTP proxy.
- Increase file limit from 1000 files to 3000 files, and check the limit up-front.
- Allow ancestor queries to be made inside of transactions.
- AppCfg should re-prompt users for authentication after an unauthorized error.
- Allow Entity objects to be cloned and their properties reset.
- Implement a local data viewer for the DevAppServer.
- Slight performance enhancement to datastore queries.
- Improve performance of applications that do a large number of File stat operations.
- Added com.google.apphosting.api.ApiProxy.CapabilityDisabledException which developers can catch in the event of a datastore outage or when the datastore goes into read-only mode.
JDO/JPA Changes- Fetched objects with multi-value props incorrectly marked dirty
- UnsupportedOperationException when updating one-to-many
- StartsWith doesn't work
- Ancestor queries execute in txn if txn is available
- Added support for gae.exclude-query-from-txn query extension
- Work around DataNucleus bug preventing app from loading persistence.xml in a path containing spaces.
- Upgrade to DataNucleus 1.1.4
- Short entity name cannot be used in JPQL Query
- NullPointerException when adding setFirstResult or setMaxResults to query
- Adding a child to a unidirectional one-to-many when the parent is detached doesn't work
- Support long and int as substitute for child object when querying
- Support fields of type Collection
- JPQL queries with single character literals enclosed in single quotes not properly handled
- Embedded classes not working in JPA
- NPE when saving bidirectional child that hasn't been added to parent.
- ClassCastException when explicitly setting parent of child
- Support "MEMBER OF" in jpql
- Detached objects have SCO fields
- Cannot filter by parent if parent has a parent
- Race condition initializing datanucleus meta-data
- Take advantage of keys-only queries
- Support unindexed properties
- results.size() must be called before closing JPA Entity Manager to avoid 'NucleusUserException: Object Manager has been closed'
Version 1.2.1 - May 13, 2009- Added validation of appengine-web.xml, cron.xml, and datastore-indexes.xml.
- New <user-permissions> element added to appengine-web.xml to grant custom third-party permissions (e.g. OgnlInvokePermission).
- Support for unindexed datastore properties of arbitrary types.
- Added HTTP Proxy support to appcfg.sh.
- Response limit raised from 1MB to 10MB
- Some methods from Servlet 2.5 were missing
- Individual bytes read from ServletInputStream were incorrectly signed
- Expect header is now ignored, rather than causing 500 errors
- Bundled commons-logging-1.2.1.jar can conflict with user-provided jars
- Groovy permissions are granted in the local runtime:
- Reflection on some JRE classes did not work properly
- <url-pattern> elements are now allowed in <jsp-property-group>
- JSPs with embedded UTF-8 content are not compiled properly
- Static welcome files now take precedence over dynamic welcome files in SDK
- Thread.setContextClassLoader() is now supported
- Content-Type not set in local implementation of URLFetch API
- AppCfg request_logs command is limited to 100 lines
- Timestamp added to datastore indexes file uses current locale
JDO/JPA Changes- Fix handling of user-defined @Order
- Support field restrictions in queries
- Fix NPE when querying for null parent
- Support contains operator in JDOQL
- Support doubles as query literals
- Support BigDecimal fields
- Support persisting classes with superclasses
- Support Collection fields with serialized="true"
- Support @Lob JPA annotation
- Support @Serialized on byte member
- Bidirectional one-to-many when parent has long or unencoded String pk fails
- Cannot fetch many side of one-to-many when pk is Key, Long, or unencoded String
- JDOQL: Support implicit params
- Cannot add child to existing one-to-many if parent has Long or unencoded String pk
- Expose batch gets
- Can't reattach detached objects with Date props
- Fetching 1 to 1 needs to differentiate between direct and indirect children
- Support embedded classes with Key primary key
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