[vc_row][vc_column][vc_btn title=”SOFTWARE AGILITY” style=”flat” color=”black” i_icon_fontawesome=”fa fa-shield” add_icon=”true” link=”url:http%3A%2F%2Fdoc.casthighlight.com%2Fsoftware-agility%2F|||”][vc_btn title=”CODE READABILITY” style=”outline” color=”black” i_icon_fontawesome=”fa fa-code” add_icon=”true” link=”url:http%3A%2F%2Fdoc.casthighlight.com%2Fcategory%2Fproduct%2Findicators-methodology%2Fcode-insights%2Fsoftware-agility%2Fcode-readability%2F|||”][vc_empty_space height=”12px”][vc_row_inner][vc_column_inner][vc_column_text]

Why you should care

[/vc_column_text][vc_column_text]Although this is sometimes unavailable, nesting try/catch blocks severely impacts the readability of the source code as it makes it difficult to understand which block will catch which exception.[/vc_column_text][vc_empty_space][/vc_column_inner][/vc_row_inner][vc_empty_space height=”12px”][vc_empty_space][vc_separator][vc_column_text]

How we detect

[/vc_column_text][vc_column_text]CAST Highlight counts one occurrence each time a try block contains one or more nested other try.

Bad Code 

try {
  // some stuff
  // ....
  if (toto) {
    try {         // ===> VIOLATION
      // another stuff
      // ...
    }
    catch (Exception e) {
      throw e;
    }
  }
}
catch (Exception e) {
  throw e;
}

Good Code 

try {
  // some stuff
  // ....
}
catch (Exception e) {
 throw e;
}
if (toto) {
  try {
    // another stuff
    // ...
  }
  catch (Exception e) {
     throw e;
  }
}

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References

[/vc_column_text][vc_column_text]https://softwareengineering.stackexchange.com/questions/118788/is-using-nested-try-catch-blocks-an-anti-pattern
https://rules.sonarsource.com/java/RSPEC-1141[/vc_column_text][vc_empty_space][vc_row_inner][vc_column_inner][vc_single_image image=”5362″ img_size=”full”][vc_column_text]

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