Limit Number of CATCH Clauses per TRY Block

WarningMetrics & Complexity Limits#EC MAX_CATCH_CLAUSESRemote Enabled

Overview

Limit CATCH clauses per TRY block.

ATC Finding Message: TRY block has too many CATCH clauses; handling too many errors indicates coupling

Rationale

A single TRY block handling an excessive number of distinct exception types indicates high coupling and overly broad responsibilities. Decompose the procedure or catch common superclasses if appropriate.

Non-Compliant

TRY.
    execute_workflow( ).
  CATCH cx_a. ...
  CATCH cx_b. ...
  CATCH cx_c. ...
  CATCH cx_d. ...
ENDTRY.

Compliant

TRY.
    execute_workflow( ).
  CATCH cx_workflow_error. ...
ENDTRY.

Configuration & Thresholds

This check can be fine-tuned directly in the ATC Check Variant Editor (CHKV) in Eclipse ADT:

Parameter Name	Data Type	Default Value	Description & Guidance
MAX_CATCH_CLAUSES	Integer	3	Maximum number of CATCH clauses allowed per TRY block (default: 3)

Suppression

To suppress findings for this rule, append the pseudo-comment to the statement:

" Standard pseudo-comment:
... "#EC MAX_CATCH_CLAUSES

" SAP CI_ prefix format:
... "#EC CI_MAX_CATCH_CLAUSES

Related Rules

• Avoid Catching Generic CX_ROOT (Catch Specific Exceptions) — #EC NO_CATCH_ROOT
• Prefer Class-Based Exceptions over Classic EXCEPTIONS — #EC PREF_CLASS_EXC

Technical Details

• Native ATC Class: ZCL_SKYLINT_MAX_CATCH_CLAUSES
• Implementation File: zcl_skylint_max_catch_clauses.clas.abap