"exception handler" meaning in English

{
  "forms": [
    {
      "form": "exception handlers",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "exception handler (plural exception handlers)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Entries with translation boxes",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with German translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Japanese translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "langcode": "en",
          "name": "Computing",
          "orig": "en:Computing",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "A method or subroutine that handles an exception."
      ],
      "id": "en-exception_handler-en-noun-8alfAedD",
      "links": [
        [
          "computing",
          "computing#Noun"
        ],
        [
          "method",
          "method"
        ],
        [
          "subroutine",
          "subroutine"
        ]
      ],
      "raw_glosses": [
        "(computing) A method or subroutine that handles an exception."
      ],
      "topics": [
        "computing",
        "engineering",
        "mathematics",
        "natural-sciences",
        "physical-sciences",
        "sciences"
      ],
      "translations": [
        {
          "code": "de",
          "lang": "German",
          "lang_code": "de",
          "sense": "Translations",
          "tags": [
            "masculine"
          ],
          "word": "Ausnahmebehandler"
        },
        {
          "alt": "れいがいハンドラ",
          "code": "ja",
          "lang": "Japanese",
          "lang_code": "ja",
          "roman": "reigai handora",
          "sense": "Translations",
          "word": "例外ハンドラ"
        }
      ]
    }
  ],
  "word": "exception handler"
}

{
  "forms": [
    {
      "form": "exception handlers",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "exception handler (plural exception handlers)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "Entries with translation boxes",
        "Pages with 1 entry",
        "Pages with entries",
        "Terms with German translations",
        "Terms with Japanese translations",
        "Translation table header lacks gloss",
        "en:Computing"
      ],
      "glosses": [
        "A method or subroutine that handles an exception."
      ],
      "links": [
        [
          "computing",
          "computing#Noun"
        ],
        [
          "method",
          "method"
        ],
        [
          "subroutine",
          "subroutine"
        ]
      ],
      "raw_glosses": [
        "(computing) A method or subroutine that handles an exception."
      ],
      "topics": [
        "computing",
        "engineering",
        "mathematics",
        "natural-sciences",
        "physical-sciences",
        "sciences"
      ]
    }
  ],
  "translations": [
    {
      "code": "de",
      "lang": "German",
      "lang_code": "de",
      "sense": "Translations",
      "tags": [
        "masculine"
      ],
      "word": "Ausnahmebehandler"
    },
    {
      "alt": "れいがいハンドラ",
      "code": "ja",
      "lang": "Japanese",
      "lang_code": "ja",
      "roman": "reigai handora",
      "sense": "Translations",
      "word": "例外ハンドラ"
    }
  ],
  "word": "exception handler"
}