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Java

729The try Block: Marking Code That May Throw Exceptions
730The catch Block: Handling Specific Exception Types
731Matching Exceptions to catch Clauses
732Accessing Exception Information in catch Blocks
733The finally Block: Guaranteed Execution
734Common finally Use Cases: Resource Cleanup
735Control Flow with try-catch-finally
736Return Statements in finally Blocks
737Exceptions Thrown from finally Blocks
738Nested try-catch-finally Structures
739The throw Keyword: Throwing Exceptions Manually
740Creating and Throwing Exception Instances
741Exception Propagation: How Exceptions Move Up the Call Stack
742Propagation with No Matching catch Block
743Method Signatures and throws Declaration
744Propagating vs Handling: When to Catch vs Declare
745Re-throwing Exceptions After Partial Handling
746Exception Propagation Through Constructor Calls
747Stack Traces and Debugging Propagated Exceptions
748What Is the Call Stack?
749Normal Stack Unwinding
750Exception-Driven Stack Unwinding
751The Search for a Handler
752Unwinding Without a Handler
753Stack Trace Information
754finally Blocks During Unwinding
755Performance Impact of Unwinding
756The Need for Multiple catch Blocks
757Syntax: Writing Multiple catch Blocks
758Catch Block Order: Most Specific First
759Compiler Error: Unreachable catch Block
760Catching Sibling Exception Types
761Multi-Catch Syntax (Java 7+)
762Restrictions on Multi-Catch
763The Implicit final in Multi-Catch
764Granular vs General Exception Handling
765Catch Order Best Practices
766Why Rethrow: When to Propagate Exceptions
767Basic Rethrow: throw in catch Block
768Rethrowing the Same Exception Instance
769Wrapping Exceptions: throw new Exception(cause)
770Exception Chaining with initCause and Constructors
771Rethrowing in finally: Suppressing Original Exceptions
772Precise Rethrow (Java 7+): Improved Type Safety
773Logging and Rethrowing: Best Practices

Java

729The try Block: Marking Code That May Throw Exceptions
730The catch Block: Handling Specific Exception Types
731Matching Exceptions to catch Clauses
732Accessing Exception Information in catch Blocks
733The finally Block: Guaranteed Execution
734Common finally Use Cases: Resource Cleanup
735Control Flow with try-catch-finally
736Return Statements in finally Blocks
737Exceptions Thrown from finally Blocks
738Nested try-catch-finally Structures
739The throw Keyword: Throwing Exceptions Manually
740Creating and Throwing Exception Instances
741Exception Propagation: How Exceptions Move Up the Call Stack
742Propagation with No Matching catch Block
743Method Signatures and throws Declaration
744Propagating vs Handling: When to Catch vs Declare
745Re-throwing Exceptions After Partial Handling
746Exception Propagation Through Constructor Calls
747Stack Traces and Debugging Propagated Exceptions
748What Is the Call Stack?
749Normal Stack Unwinding
750Exception-Driven Stack Unwinding
751The Search for a Handler
752Unwinding Without a Handler
753Stack Trace Information
754finally Blocks During Unwinding
755Performance Impact of Unwinding
756The Need for Multiple catch Blocks
757Syntax: Writing Multiple catch Blocks
758Catch Block Order: Most Specific First
759Compiler Error: Unreachable catch Block
760Catching Sibling Exception Types
761Multi-Catch Syntax (Java 7+)
762Restrictions on Multi-Catch
763The Implicit final in Multi-Catch
764Granular vs General Exception Handling
765Catch Order Best Practices
766Why Rethrow: When to Propagate Exceptions
767Basic Rethrow: throw in catch Block
768Rethrowing the Same Exception Instance
769Wrapping Exceptions: throw new Exception(cause)
770Exception Chaining with initCause and Constructors
771Rethrowing in finally: Suppressing Original Exceptions
772Precise Rethrow (Java 7+): Improved Type Safety
773Logging and Rethrowing: Best Practices

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Lesson 766 of 2,870·18. Exception Handling FundamentalsPro lesson

Why Rethrow: When to Propagate Exceptions

Understand scenarios where catching and rethrowing exceptions is necessary, such as logging before propagation.

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