{"record":{"id":"a904b487df8b999b","repo":"apache/iceberg","slug":"this-getclass-getname-does-not-support-wri","errorCode":null,"errorMessage":"this.getClass().getName() + \" does not support writeManifestsWith\"","messagePattern":"this\\.getClass\\(\\)\\.getName\\(\\) \\+ \" does not support writeManifestsWith\"","errorType":"exception","errorClass":"UnsupportedOperationException","httpStatus":null,"severity":"error","filePath":"api/src/main/java/org/apache/iceberg/SnapshotUpdate.java","lineNumber":75,"sourceCode":"   *\n   * @param executorService the provided executor\n   * @return this for method chaining\n   */\n  ThisT scanManifestsWith(ExecutorService executorService);\n\n  /**\n   * Use a particular executor to write manifests during commit with the specified parallelism. The\n   * default worker pool will be used by default.\n   *\n   * <p>The parallelism parameter controls how many manifest writers are used, which informs the\n   * number of manifest files produced. The executor provides the threads for parallel execution.\n   *\n   * @param executorService the provided executor\n   * @param parallelism the number of parallel manifest writers to use\n   * @return this for method chaining\n   */\n  default ThisT writeManifestsWith(ExecutorService executorService, int parallelism) {\n    throw new UnsupportedOperationException(\n        this.getClass().getName() + \" does not support writeManifestsWith\");\n  }\n\n  /**\n   * Perform operations on a particular branch\n   *\n   * @param branch which is name of SnapshotRef of type branch.\n   * @return this for method chaining\n   */\n  default ThisT toBranch(String branch) {\n    throw new UnsupportedOperationException(\n        String.format(\n            \"Cannot commit to branch %s: %s does not support branch commits\",\n            branch, this.getClass().getName()));\n  }\n\n  default ThisT validateWith(SnapshotAncestryValidator validator) {\n    throw new UnsupportedOperationException(","sourceCodeStart":57,"sourceCodeEnd":93,"githubUrl":"https://github.com/apache/iceberg/blob/86d9c8fc543e7c56c9f624eb725f76c9baff9570/api/src/main/java/org/apache/iceberg/SnapshotUpdate.java#L57-L93","documentation":"Default-method guard on SnapshotUpdate: thrown when writeManifestsWith(executorService, parallelism) is invoked on a snapshot-update implementation that did not override it. The message names the runtime class. It means parallel manifest writing with explicit parallelism is not wired up for that operation — the executor arguments are irrelevant.","triggerScenarios":"Thrown at api/src/main/java/org/apache/iceberg/SnapshotUpdate.java:75 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":["Use scanManifestsWith for read-side parallelism, or accept the default worker pool for manifest writes","Catch UnsupportedOperationException and commit without custom manifest-write parallelism","Override writeManifestsWith in the operation implementation"],"exampleFix":null,"handlingStrategy":"type-guard","validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"86d9c8fc543e7c56c9f624eb725f76c9baff9570","analyzedAt":"2026-09-12T00:46:39.097Z","contentChangedAt":"2026-09-12T00:46:39.097Z","schemaVersion":2},"datasetVersion":"2026-09-23T08:17:48.524Z"}