Java 8 has reached end of support
and will be deprecated
on January 31, 2026. After deprecation, you won't be able to deploy Java 8
applications, even if your organization previously used an organization policy to
re-enable deployments of legacy runtimes. Your existing Java
8 applications will continue to run and receive traffic after their
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Constant Field Values (Google App Engine API for Java)
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com.google.*
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com.google.appengine.api.backends.BackendService Modifier and Type Constant Field Value public static final java.lang.StringBACKEND_ID_ENV_ATTRIBUTE"com.google.appengine.backend.id"public static final java.lang.StringDEVAPPSERVER_PORTMAPPING_KEY"com.google.appengine.devappserver.portmapping"public static final java.lang.StringINSTANCE_ID_ENV_ATTRIBUTE"com.google.appengine.instance.id"public static final java.lang.StringREQUEST_HEADER_BACKEND_REDIRECT"X-AppEngine-BackendName"public static final java.lang.StringREQUEST_HEADER_INSTANCE_REDIRECT"X-AppEngine-BackendInstance"
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com.google.appengine.api.blobstore.BlobInfoFactory Modifier and Type Constant Field Value public static final java.lang.StringCONTENT_TYPE"content_type"public static final java.lang.StringCREATION"creation"public static final java.lang.StringFILENAME"filename"public static final java.lang.StringGS_OBJECT_NAME"gs_object_name"public static final java.lang.StringKIND"__BlobInfo__"public static final java.lang.StringMD5_HASH"md5_hash"public static final java.lang.StringSIZE"size" -
com.google.appengine.api.blobstore.BlobstoreService Modifier and Type Constant Field Value public static final intMAX_BLOB_FETCH_SIZE1015808
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com.google.appengine.api.datastore.Category Modifier and Type Constant Field Value public static final longserialVersionUID8556134984576082397L -
com.google.appengine.api.datastore.DatastoreServiceConfig Modifier and Type Constant Field Value public static final java.lang.StringDATASTORE_EMPTY_LIST_SUPPORT"DATASTORE_EMPTY_LIST_SUPPORT" -
com.google.appengine.api.datastore.DataTypeUtils Modifier and Type Constant Field Value public static final intMAX_LINK_PROPERTY_LENGTH2083public static final intMAX_SHORT_BLOB_PROPERTY_LENGTH1500public static final intMAX_STRING_PROPERTY_LENGTH1500 -
com.google.appengine.api.datastore.Entities Modifier and Type Constant Field Value public static final longENTITY_GROUP_METADATA_ID1Lpublic static final java.lang.StringENTITY_GROUP_METADATA_KIND"__entity_group__"public static final java.lang.StringKIND_METADATA_KIND"__kind__"public static final longNAMESPACE_METADATA_EMPTY_ID1Lpublic static final java.lang.StringNAMESPACE_METADATA_KIND"__namespace__"public static final java.lang.StringPROPERTY_METADATA_KIND"__property__" -
com.google.appengine.api.datastore.Entity Modifier and Type Constant Field Value public static final java.lang.StringKEY_RESERVED_PROPERTY"__key__"public static final java.lang.StringSCATTER_RESERVED_PROPERTY"__scatter__"public static final java.lang.StringVERSION_RESERVED_PROPERTY"__version__" -
com.google.appengine.api.datastore.FetchOptions Modifier and Type Constant Field Value public static final intDEFAULT_CHUNK_SIZE20 -
com.google.appengine.api.datastore.GeoPt Modifier and Type Constant Field Value public static final doubleEARTH_RADIUS_METERS6371010.0public static final longserialVersionUID349808987517153697L -
com.google.appengine.api.datastore.IMHandle Modifier and Type Constant Field Value public static final longserialVersionUID6963426833434504530L -
com.google.appengine.api.datastore.Link Modifier and Type Constant Field Value public static final longserialVersionUID731239796613544443L -
com.google.appengine.api.datastore.PhoneNumber Modifier and Type Constant Field Value public static final longserialVersionUID-8968032543663409348L -
com.google.appengine.api.datastore.PostalAddress Modifier and Type Constant Field Value public static final longserialVersionUID-1090628591187239495L -
com.google.appengine.api.datastore.Query Modifier and Type Constant Field Value public static final java.lang.StringKIND_METADATA_KIND"__kind__"public static final java.lang.StringNAMESPACE_METADATA_KIND"__namespace__"public static final java.lang.StringPROPERTY_METADATA_KIND"__property__" -
com.google.appengine.api.datastore.Rating Modifier and Type Constant Field Value public static final intMAX_VALUE100public static final intMIN_VALUE0public static final longserialVersionUID362898405551261187L -
com.google.appengine.api.datastore.ShortBlob Modifier and Type Constant Field Value public static final longserialVersionUID-3427166602866836472L -
com.google.appengine.api.datastore.Text Modifier and Type Constant Field Value public static final longserialVersionUID-8389037235415462280L
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com.google.appengine.api.files.GSFileOptions Modifier and Type Constant Field Value public static final java.lang.StringGS_USER_METADATA_PREFIX"x-goog-meta-"
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com.google.appengine.api.images.ImagesService Modifier and Type Constant Field Value public static final intMAX_COMPOSITES_PER_REQUEST16public static final intMAX_RESIZE_DIMENSIONS4000public static final intMAX_TRANSFORMS_PER_REQUEST10public static final intSERVING_SIZES_LIMIT1600
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com.google.appengine.api.log.LogService Modifier and Type Constant Field Value public static final intDEFAULT_ITEMS_PER_FETCH20
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com.google.appengine.api.memcache.MemcacheSerialization Modifier and Type Constant Field Value public static final java.lang.StringUSE_THREAD_CONTEXT_CLASSLOADER_PROPERTY"appengine.api.memcache.useThreadContextClassLoader"
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com.google.appengine.api.search.DateUtil Modifier and Type Constant Field Value public static final intMILLISECONDS_IN_DAY86400000 -
com.google.appengine.api.search.SortExpression Modifier and Type Constant Field Value public static final java.lang.StringDOCUMENT_ID_FIELD_NAME"_doc_id"public static final java.lang.StringLANGUAGE_FIELD_NAME"_lang"public static final java.lang.StringRANK_FIELD_NAME"_rank"public static final java.lang.StringSCORE_FIELD_NAME"_score"public static final java.lang.StringTIMESTAMP_FIELD_NAME"_timestamp"
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com.google.appengine.api.search.checkers.SearchApiLimits Modifier and Type Constant Field Value public static final intFACET_DEFAULT_DISCOVERY_LIMIT10public static final intFACET_MAXIMUM_CONSTRAINTS50public static final intFACET_MAXIMUM_DEPTH10000public static final intFACET_MAXIMUM_DISCOVERY_LIMIT100public static final intFACET_MAXIMUM_RANGES50public static final intFACET_MAXIMUM_VALUE_LIMIT100public static final java.lang.StringFIELD_NAME_PATTERN"^[A-Za-z][A-Za-z0-9_]*$"public static final intGET_INDEXES_DEFAULT_LIMIT20public static final intGET_INDEXES_MAXIMUM_LIMIT1000public static final intGET_INDEXES_MAXIMUM_OFFSET1000public static final intGET_RANGE_DEFAULT_LIMIT100public static final intGET_RANGE_MAXIMUM_LIMIT1000public static final intMAXIMUM_ATOM_LENGTH500public static final intMAXIMUM_CURSOR_LENGTH10000public static final intMAXIMUM_DOCUMENT_ID_LENGTH500public static final intMAXIMUM_DOCUMENT_LENGTH1048576public static final intMAXIMUM_INDEX_NAME_LENGTH100public static final intMAXIMUM_NAME_LENGTH500public static final doubleMAXIMUM_NEGATIVE_LATITUDE-90.0public static final doubleMAXIMUM_NEGATIVE_LONGITUDE-180.0public static final doubleMAXIMUM_NUMBER_VALUE2.147483647E9public static final doubleMAXIMUM_POSITIVE_LATITUDE90.0public static final doubleMAXIMUM_POSITIVE_LONGITUDE180.0public static final intMAXIMUM_PREFIX_LENGTH500public static final intMAXIMUM_QUERY_LENGTH2000public static final intMAXIMUM_TEXT_LENGTH1048576public static final doubleMINIMUM_NUMBER_VALUE-2.147483647E9public static final intPUT_MAXIMUM_DOCS_PER_REQUEST200public static final intSEARCH_DEFAULT_LIMIT20public static final intSEARCH_DEFAULT_NUMBER_FOUND_ACCURACY-1public static final intSEARCH_DEFAULT_SORTED_LIMIT1000public static final intSEARCH_MAXIMUM_LIMIT1000public static final intSEARCH_MAXIMUM_NUMBER_FOUND_ACCURACY25000public static final intSEARCH_MAXIMUM_NUMBER_OF_FIELDS_TO_RETURN1000public static final intSEARCH_MAXIMUM_OFFSET1000public static final intSEARCH_MAXIMUM_SORTED_LIMIT10000public static final intVECTOR_FIELD_MAX_SIZE10000
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com.google.appengine.api.taskqueue.DeferredTaskContext Modifier and Type Constant Field Value public static final java.lang.StringDEFAULT_DEFERRED_URL"/_ah/queue/__deferred__"public static final java.lang.StringRUNNABLE_TASK_CONTENT_TYPE"application/x-binary-app-engine-java-runnable-task" -
com.google.appengine.api.taskqueue.Queue Modifier and Type Constant Field Value public static final java.lang.StringDEFAULT_QUEUE"default"public static final java.lang.StringDEFAULT_QUEUE_PATH"/_ah/queue"
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com.google.appengine.api.urlfetch.FetchOptions Modifier and Type Constant Field Value public static final booleanDEFAULT_ALLOW_TRUNCATEfalsepublic static final booleanDEFAULT_FOLLOW_REDIRECTStrue -
com.google.appengine.api.urlfetch.URLFetchService Modifier and Type Constant Field Value public static final java.lang.StringDEFAULT_DEADLINE_PROPERTY"appengine.api.urlfetch.defaultDeadline"