org.sonar.l10n.java.rules.squid.RedundantThrowsDeclarationCheck.html Maven / Gradle / Ivy

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There is a newer version: 8.6.0.37351


An exception in a throws declaration in Java is superfluous if it is:



  listed multiple times
  a subclass of another listed exception
  a RuntimeException, or one of its descendants
  completely unnecessary because the declared exception type cannot actually be thrown


Noncompliant Code Example

void foo() throws MyException, MyException {}  // Noncompliant; should be listed once
void bar() throws Throwable, Exception {}  // Noncompliant; Exception is a subclass of Throwable
void baz() throws RuntimeException {}  // Noncompliant; RuntimeException can always be thrown


Compliant Solution

void foo() throws MyException {}
void bar() throws Throwable {}
void baz() {}