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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"NCBIQBlastService.sendAlignmentRequest | Always throws ArrayIndexOutOfBoundsException","articleBody":"I am using BioJava through Maven, using biojava 6.0.5 and biojava-ws 6.0.4 (because trying to use 6.0.5 produces errors):\r\n\r\n```\r\n\u003c!-- https://mvnrepository.com/artifact/org.biojava/biojava --\u003e\r\n\u003cdependency\u003e\r\n   \u003cgroupId\u003eorg.biojava\u003c/groupId\u003e\r\n   \u003cartifactId\u003ebiojava\u003c/artifactId\u003e\r\n   \u003cversion\u003e6.0.5\u003c/version\u003e\r\n   \u003ctype\u003epom\u003c/type\u003e\r\n\u003c/dependency\u003e\r\n\u003c!-- https://mvnrepository.com/artifact/org.biojava/biojava-ws --\u003e\r\n\u003cdependency\u003e\r\n   \u003cgroupId\u003eorg.biojava\u003c/groupId\u003e\r\n   \u003cartifactId\u003ebiojava-ws\u003c/artifactId\u003e\r\n   \u003cversion\u003e6.0.4\u003c/version\u003e\r\n\u003c/dependency\u003e\r\n```\r\n\r\nI'm trying to submit blast requests to NCBI. To do this, I have largely followed this guide:\r\nhttps://biojava.org/wiki/BioJava:CookBook3:NCBIQBlastService\r\n\r\nMy relevant code is as follows:\r\n\r\n```\r\nprivate NCBIQBlastAlignmentProperties inputProperties = new NCBIQBlastAlignmentProperties();\r\nprivate NCBIQBlastService service = new NCBIQBlastService();\r\n\r\n...\r\n\r\ninputProperties.setBlastDatabase(\"swissprot\");\r\ninputProperties.setBlastExpect(Double.parseDouble(\"1e-10\"));\r\ninputProperties.setBlastProgram(BlastProgramEnum.blastp);\r\ninputProperties.setAlignmentOption(BlastAlignmentParameterEnum.ENTREZ_QUERY, \"\u003credacted\u003e\");   //Note this redaction is not in my original code.\r\n\r\n...\r\n\r\nSystem.out.println(\"Submitting \" + inputSequences.getSize() + \" requests\");\r\nfor(int i=0; i\u003cinputSequences.getSize(); i++)\r\n{\r\n   try\r\n   {\r\n      rids.add(this.service.sendAlignmentRequest(inputSequences.getSequence(i), inputProperties));\r\n   }\r\n   catch (Exception e)\r\n   {\r\n      e.printStackTrace();\r\n   }\r\n}\r\n```\r\n\r\nNote that \"rids\" is an ArrayList\u003cString\u003e for storing rid strings and inputSequences is an instance of a class which stores sequence data as String.\r\n\r\nWhen executed, the following error is thrown on each iteration of the for loop:\r\n\r\n```\r\njava.lang.ArrayIndexOutOfBoundsException: Index 1 out of bounds for length 1\r\nat org.biojava.nbio.ws.alignment.qblast.NCBIQBlastService.sendAlignmentRequest(NCBIQBlastService.java:223)\r\n```\r\n\r\nNote that this error is not being thrown by my code, but by the NCBIQBlastService module. Going to this point in the code leads to the following block in NCBIQBlastService:\r\n\r\n```\r\nBlastJob job = new BlastJob();\r\nString line;\r\nwhile ((line = reader.readLine()) != null) {\r\n   if (!line.contains(\"class=\\\"error\\\"\") \u0026\u0026 !line.contains(\"Message ID#\")) {\r\n      // if there is no error, capture RID and RTOE\r\n      if (line.contains(\"RID = \")) {\r\n         String[] arr = line.split(\"=\");\r\n         job.setId(arr[1].trim());\r\n      } else if (line.contains(\"RTOE = \")) {\r\n         String[] arr = line.split(\"=\");\r\n         job.setStartTimestamp(System.currentTimeMillis());\r\n         job.setExpectedExecutionTime(Long.parseLong(arr[1].trim()) * 1000);\r\n      }\r\n      jobs.put(job.getId(), job);\r\n   } else {\r\n      // handle QBlast error message\r\n\r\n      // Capture everything to the left of this HTML statement...\r\n      String[] tmp = line.split(\"\u003c/p\u003e\u003c/li\u003e\u003c/ul\u003e\");\r\n\r\n      // Only the error message is on the right side of this...\r\n      String[] moreTmp = tmp[0].split(\"\u003cp class=\\\"error\\\"\u003e\");\r\n      throw new Exception(\"NCBI QBlast refused this request because: \" + moreTmp[1].trim());\r\n   }\r\n\r\n}\r\n```\r\n\r\nSpecifically, the line \"**throw new Exception(\"NCBI QBlast refused this request because: \" + moreTmp[1].trim());**\" is throwing the ArrayIndexOutOfBoundsException. Evidently there is something wrong with my request, hence why I'm getting the error handler, but I can't determine what that reason is is because moreTmp[1] is out of moreTmp's bounds (according to the error message it only has one element). Consequently, the exception the code is trying to throw doesn't get thrown and the reason for the refusal of the request is lost.\r\n","author":{"url":"https://github.com/FC123321","@type":"Person","name":"FC123321"},"datePublished":"2022-06-30T23:45:53.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":1},"url":"https://github.com/1033/biojava/issues/1033"}