"first-chance exception" meaning in English

{
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      "form": "first-chance exceptions",
      "tags": [
        "plural"
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      "expansion": "first-chance exception (plural first-chance exceptions)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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          "langcode": "en",
          "name": "Programming",
          "orig": "en:Programming",
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      "examples": [
        {
          "ref": "2006, Jay Hilyard, Stephen Teilhet, C# Cookbook",
          "text": "At this stage, the exception is considered a first-chance exception. Checking the checkbox in the Thrown column forces the debugger to intervene...",
          "type": "quotation"
        },
        {
          "ref": "2008, Dmitry Vostokov, Memory Dump Analysis Anthology, Volume 1",
          "text": "Here getting Early Crash Dump when a first-chance exception happens can help in component identification before corruption starts spreading across data.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "An exception (error condition) when handled by a debugger, such that the programmer has the first chance to study it; such an exception would otherwise proceed to a handler or (in its absence) crash the program."
      ],
      "id": "en-first-chance_exception-en-noun-eKG8ON0K",
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          "programming",
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        [
          "exception",
          "exception"
        ],
        [
          "handle",
          "handle"
        ],
        [
          "debugger",
          "debugger"
        ],
        [
          "programmer",
          "programmer"
        ],
        [
          "handler",
          "handler"
        ],
        [
          "crash",
          "crash"
        ]
      ],
      "raw_glosses": [
        "(programming) An exception (error condition) when handled by a debugger, such that the programmer has the first chance to study it; such an exception would otherwise proceed to a handler or (in its absence) crash the program."
      ],
      "topics": [
        "computing",
        "engineering",
        "mathematics",
        "natural-sciences",
        "physical-sciences",
        "programming",
        "sciences"
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  ],
  "word": "first-chance exception"
}

{
  "forms": [
    {
      "form": "first-chance exceptions",
      "tags": [
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      ]
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  ],
  "head_templates": [
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      "expansion": "first-chance exception (plural first-chance exceptions)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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        "en:Programming"
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          "ref": "2006, Jay Hilyard, Stephen Teilhet, C# Cookbook",
          "text": "At this stage, the exception is considered a first-chance exception. Checking the checkbox in the Thrown column forces the debugger to intervene...",
          "type": "quotation"
        },
        {
          "ref": "2008, Dmitry Vostokov, Memory Dump Analysis Anthology, Volume 1",
          "text": "Here getting Early Crash Dump when a first-chance exception happens can help in component identification before corruption starts spreading across data.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "An exception (error condition) when handled by a debugger, such that the programmer has the first chance to study it; such an exception would otherwise proceed to a handler or (in its absence) crash the program."
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          "programming",
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        "(programming) An exception (error condition) when handled by a debugger, such that the programmer has the first chance to study it; such an exception would otherwise proceed to a handler or (in its absence) crash the program."
      ],
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        "computing",
        "engineering",
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  ],
  "word": "first-chance exception"
}