{"record":{"id":"84a739cbc052f4e6","repo":"MuntashirAkon/AppManager","slug":"cannot-write-more-data-the-end-of-the-compressed-data-stream","errorCode":null,"errorMessage":"Cannot write more data, the end of the compressed data stream has been reached","messagePattern":"Cannot write more data, the end of the compressed data stream has been reached","errorType":"exception","errorClass":"IOException","httpStatus":null,"severity":"error","filePath":"app/src/main/java/org/apache/commons/compress/compressors/gzip/GzipCompressorOutputStream.java","lineNumber":141,"sourceCode":"    /**\n     * {@inheritDoc}\n     *\n     * @since 1.1\n     */\n    @Override\n    public void write(final byte[] buffer) throws IOException {\n        write(buffer, 0, buffer.length);\n    }\n\n    /**\n     * {@inheritDoc}\n     *\n     * @since 1.1\n     */\n    @Override\n    public void write(final byte[] buffer, final int offset, final int length) throws IOException {\n        if (deflater.finished()) {\n            throw new IOException(\"Cannot write more data, the end of the compressed data stream has been reached\");\n        }\n        if (length > 0) {\n            deflater.setInput(buffer, offset, length);\n\n            while (!deflater.needsInput()) {\n                deflate();\n            }\n\n            crc.update(buffer, offset, length);\n        }\n    }\n\n    private void deflate() throws IOException {\n        final int length = deflater.deflate(deflateBuffer, 0, deflateBuffer.length);\n        if (length > 0) {\n            out.write(deflateBuffer, 0, length);\n        }\n    }","sourceCodeStart":123,"sourceCodeEnd":159,"githubUrl":"https://github.com/MuntashirAkon/AppManager/blob/0152f468fc9463ee02dc2ca83f6fe4989a2c4ca5/app/src/main/java/org/apache/commons/compress/compressors/gzip/GzipCompressorOutputStream.java#L123-L159","documentation":"GzipCompressorOutputStream.write throws this IOException when the underlying Deflater has already finished the compressed stream (finish()/close() was called). After the GZIP trailer is written, no further input can be compressed, so any subsequent write is rejected.","triggerScenarios":"Calling write(byte[],int,int), write(int), or write(byte[]) on a GzipCompressorOutputStream after finish() or close() has been invoked, or after deflater.finished() became true.","commonSituations":"Reusing an output stream variable after try-with-resources closed it; calling finish() then continuing to write in a chunked-upload loop; accidentally closing the gzip stream while wrapping code still holds a reference.","solutions":["Move all write() calls before finish()/close()","Do not call finish() until all data is written; buffer remaining data first","Use a new GzipCompressorOutputStream for additional data","Restructure code so try-with-resources scope covers all writes"],"exampleFix":"// before\ngzipOut.finish();\ngzipOut.write(moreData); // throws\n// after\ngzipOut.write(moreData);\ngzipOut.finish();","handlingStrategy":"try-catch","validationCode":"if (gzipOut == null || ((GzipCompressorOutputStream) gzipOut).isClosed()) throw new IllegalStateException(\"gzip stream already finished/closed\");","typeGuard":"boolean canWrite(GzipCompressorOutputStream s) { return s != null && !s.isClosed(); }","tryCatchPattern":"try { gzipOut.write(data); } catch (IOException e) { if (e.getMessage().contains(\"end of the compressed data stream\")) { /* reopen stream or drop data */ } else throw e; }","preventionTips":["Write all data before calling finish()/close()","Scope try-with-resources to cover every write","Never reuse a GzipCompressorOutputStream after finish()"],"tags":["gzip","io","stream-state"],"backgroundTag":"invalid-state-transition","analyzedSha":"0152f468fc9463ee02dc2ca83f6fe4989a2c4ca5","analyzedAt":"2026-09-12T14:03:37.243Z","contentChangedAt":"2026-09-12T14:03:37.243Z","schemaVersion":2},"datasetVersion":"2026-09-23T08:17:48.524Z"}