Close this session and any Projections produced by <xref uid="com.google.cloud.storage.BlobReadSession.<Projection>readAs(com.google.cloud.storage.ReadProjectionConfig<Projection>)" data-throw-if-not-resolved="false">#readAs(ReadProjectionConfig).
If a projection is not fully consumed/resolved it will be transitioned to a failed state.
This method MUST be called to ensure cleanup of any inflight buffers, and to avoid a memory
leak.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Hard to understand","hardToUnderstand","thumb-down"],["Incorrect information or sample code","incorrectInformationOrSampleCode","thumb-down"],["Missing the information/samples I need","missingTheInformationSamplesINeed","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-16 UTC."],[],[],null,["# Interface BlobReadSession (2.55.0)\n\nVersion latestkeyboard_arrow_down\n\n- [2.55.0 (latest)](/java/docs/reference/google-cloud-storage/latest/com.google.cloud.storage.BlobReadSession)\n- [2.54.0](/java/docs/reference/google-cloud-storage/2.54.0/com.google.cloud.storage.BlobReadSession)\n- [2.53.3](/java/docs/reference/google-cloud-storage/2.53.3/com.google.cloud.storage.BlobReadSession)\n- [2.52.3](/java/docs/reference/google-cloud-storage/2.52.3/com.google.cloud.storage.BlobReadSession)\n- [2.50.0](/java/docs/reference/google-cloud-storage/2.50.0/com.google.cloud.storage.BlobReadSession)\n- [2.49.0](/java/docs/reference/google-cloud-storage/2.49.0/com.google.cloud.storage.BlobReadSession)\n- [2.48.2](/java/docs/reference/google-cloud-storage/2.48.2/com.google.cloud.storage.BlobReadSession)\n- [2.47.0](/java/docs/reference/google-cloud-storage/2.47.0/com.google.cloud.storage.BlobReadSession)\n- [2.46.0](/java/docs/reference/google-cloud-storage/2.46.0/com.google.cloud.storage.BlobReadSession)\n- [2.45.0](/java/docs/reference/google-cloud-storage/2.45.0/com.google.cloud.storage.BlobReadSession)\n- [2.44.1](/java/docs/reference/google-cloud-storage/2.44.1/com.google.cloud.storage.BlobReadSession)\n- [2.43.2](/java/docs/reference/google-cloud-storage/2.43.2/com.google.cloud.storage.BlobReadSession)\n- [2.42.0](/java/docs/reference/google-cloud-storage/2.42.0/com.google.cloud.storage.BlobReadSession)\n- [2.41.0](/java/docs/reference/google-cloud-storage/2.41.0/com.google.cloud.storage.BlobReadSession)\n- [2.40.1](/java/docs/reference/google-cloud-storage/2.40.1/com.google.cloud.storage.BlobReadSession)\n- [2.39.0](/java/docs/reference/google-cloud-storage/2.39.0/com.google.cloud.storage.BlobReadSession)\n- [2.38.0](/java/docs/reference/google-cloud-storage/2.38.0/com.google.cloud.storage.BlobReadSession)\n- [2.37.0](/java/docs/reference/google-cloud-storage/2.37.0/com.google.cloud.storage.BlobReadSession)\n- [2.36.1](/java/docs/reference/google-cloud-storage/2.36.1/com.google.cloud.storage.BlobReadSession)\n- [2.34.0](/java/docs/reference/google-cloud-storage/2.34.0/com.google.cloud.storage.BlobReadSession)\n- [2.33.0](/java/docs/reference/google-cloud-storage/2.33.0/com.google.cloud.storage.BlobReadSession)\n- [2.32.1](/java/docs/reference/google-cloud-storage/2.32.1/com.google.cloud.storage.BlobReadSession)\n- [2.30.1](/java/docs/reference/google-cloud-storage/2.30.1/com.google.cloud.storage.BlobReadSession)\n- [2.29.1](/java/docs/reference/google-cloud-storage/2.29.1/com.google.cloud.storage.BlobReadSession)\n- [2.28.0](/java/docs/reference/google-cloud-storage/2.28.0/com.google.cloud.storage.BlobReadSession)\n- [2.27.1](/java/docs/reference/google-cloud-storage/2.27.1/com.google.cloud.storage.BlobReadSession)\n- [2.24.0](/java/docs/reference/google-cloud-storage/2.24.0/com.google.cloud.storage.BlobReadSession)\n- [2.23.0](/java/docs/reference/google-cloud-storage/2.23.0/com.google.cloud.storage.BlobReadSession)\n- [2.22.6](/java/docs/reference/google-cloud-storage/2.22.6/com.google.cloud.storage.BlobReadSession)\n- [2.21.0](/java/docs/reference/google-cloud-storage/2.21.0/com.google.cloud.storage.BlobReadSession)\n- [2.20.2](/java/docs/reference/google-cloud-storage/2.20.2/com.google.cloud.storage.BlobReadSession)\n- [2.19.0](/java/docs/reference/google-cloud-storage/2.19.0/com.google.cloud.storage.BlobReadSession)\n- [2.18.0](/java/docs/reference/google-cloud-storage/2.18.0/com.google.cloud.storage.BlobReadSession)\n- [2.17.2](/java/docs/reference/google-cloud-storage/2.17.2/com.google.cloud.storage.BlobReadSession)\n- [2.16.0](/java/docs/reference/google-cloud-storage/2.16.0/com.google.cloud.storage.BlobReadSession)\n- [2.15.1](/java/docs/reference/google-cloud-storage/2.15.1/com.google.cloud.storage.BlobReadSession)\n- [2.14.0](/java/docs/reference/google-cloud-storage/2.14.0/com.google.cloud.storage.BlobReadSession)\n- [2.13.1](/java/docs/reference/google-cloud-storage/2.13.1/com.google.cloud.storage.BlobReadSession)\n- [2.12.0](/java/docs/reference/google-cloud-storage/2.12.0/com.google.cloud.storage.BlobReadSession)\n- [2.11.3](/java/docs/reference/google-cloud-storage/2.11.3/com.google.cloud.storage.BlobReadSession)\n- [2.10.0](/java/docs/reference/google-cloud-storage/2.10.0/com.google.cloud.storage.BlobReadSession)\n- [2.9.3](/java/docs/reference/google-cloud-storage/2.9.3/com.google.cloud.storage.BlobReadSession)\n- [2.8.1](/java/docs/reference/google-cloud-storage/2.8.1/com.google.cloud.storage.BlobReadSession)\n- [2.7.1](/java/docs/reference/google-cloud-storage/2.7.1/com.google.cloud.storage.BlobReadSession)\n- [2.6.1](/java/docs/reference/google-cloud-storage/2.6.1/com.google.cloud.storage.BlobReadSession)\n- [2.5.1](/java/docs/reference/google-cloud-storage/2.5.1/com.google.cloud.storage.BlobReadSession)\n- [2.4.5](/java/docs/reference/google-cloud-storage/2.4.5/com.google.cloud.storage.BlobReadSession)\n- [2.3.0](/java/docs/reference/google-cloud-storage/2.3.0/com.google.cloud.storage.BlobReadSession)\n- [2.2.3](/java/docs/reference/google-cloud-storage/2.2.3/com.google.cloud.storage.BlobReadSession)\n- [2.1.10](/java/docs/reference/google-cloud-storage/2.1.10/com.google.cloud.storage.BlobReadSession) \n| **Beta**\n|\n|\n| This library is covered by the [Pre-GA Offerings Terms](/terms/service-terms#1)\n| of the Terms of Service. Pre-GA libraries might have limited support,\n| and changes to pre-GA libraries might not be compatible with other pre-GA versions.\n| For more information, see the\n[launch stage descriptions](/products#product-launch-stages). \n\n public interface BlobReadSession extends AutoCloseable, Closeable\n\nA session for reading bytes from a Blob\nSee Also: [Storage#blobReadSession(BlobId, BlobSourceOption...)](/java/docs/reference/google-cloud-storage/latest/com.google.cloud.storage.Storage#com_google_cloud_storage_Storage_blobReadSession_), [ReadProjectionConfigs](/java/docs/reference/google-cloud-storage/latest/com.google.cloud.storage.ReadProjectionConfigs) \n\nImplements\n----------\n\n[AutoCloseable](https://docs.oracle.com/javase/8/docs/api/java/lang/AutoCloseable.html), [Closeable](https://docs.oracle.com/javase/8/docs/api/java/io/Closeable.html)\n\nMethods\n-------\n\n### \\\u003cProjection\\\u003ereadAs(ReadProjectionConfig\\\u003cProjection\\\u003e config)\n\n public abstract Projection \u003cProjection\u003ereadAs(ReadProjectionConfig\u003cProjection\u003e config)\n\n| **Beta**\n|\n| This feature is covered by the [Pre-GA Offerings Terms](/terms/service-terms#1) of the Terms of Service. Pre-GA libraries might have limited support, and changes to pre-GA libraries might not be compatible with other pre-GA versions. For more information, see the launch stage descriptions.\n\nRead from this session as a specific `Projection` as dictated by the provided `\nconfig`\nSee Also: [ReadProjectionConfigs](/java/docs/reference/google-cloud-storage/latest/com.google.cloud.storage.ReadProjectionConfigs), [ReadProjectionConfig](/java/docs/reference/google-cloud-storage/latest/com.google.cloud.storage.ReadProjectionConfig)\n\n### close()\n\n public abstract void close()\n\n| **Beta**\n|\n| This feature is covered by the [Pre-GA Offerings Terms](/terms/service-terms#1) of the Terms of Service. Pre-GA libraries might have limited support, and changes to pre-GA libraries might not be compatible with other pre-GA versions. For more information, see the launch stage descriptions.\n\nClose this session and any `Projection`s produced by \\\u003cxref uid=\"com.google.cloud.storage.BlobReadSession.\\\u003cProjection\\\u003ereadAs(com.google.cloud.storage.ReadProjectionConfig\\\u003cProjection\\\u003e)\" data-throw-if-not-resolved=\"false\"\\\u003e#readAs(ReadProjectionConfig).\n\nIf a projection is not fully consumed/resolved it will be transitioned to a failed state.\n\nThis method MUST be called to ensure cleanup of any inflight buffers, and to avoid a memory\nleak.\n\n### getBlobInfo()\n\n public abstract BlobInfo getBlobInfo()\n\n| **Beta**\n|\n| This feature is covered by the [Pre-GA Offerings Terms](/terms/service-terms#1) of the Terms of Service. Pre-GA libraries might have limited support, and changes to pre-GA libraries might not be compatible with other pre-GA versions. For more information, see the launch stage descriptions.\n\nThe resolved metadata for the object being read"]]
