Define and throw a dedicated exception instead of using a generic one. Open
throw new RuntimeException("Failed to load validator " + validator, e);
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Using such generic exceptions as Error
, RuntimeException
, Throwable
, and Exception
prevents
calling methods from handling true, system-generated exceptions differently than application-generated errors.
Noncompliant Code Example
public void foo(String bar) throws Throwable { // Noncompliant throw new RuntimeException("My Message"); // Noncompliant }
Compliant Solution
public void foo(String bar) { throw new MyOwnRuntimeException("My Message"); }
Exceptions
Generic exceptions in the signatures of overriding methods are ignored, because overriding method has to follow signature of the throw declaration in the superclass. The issue will be raised on superclass declaration of the method (or won't be raised at all if superclass is not part of the analysis).
@Override public void myMethod() throws Exception {...}
Generic exceptions are also ignored in the signatures of methods that make calls to methods that throw generic exceptions.
public void myOtherMethod throws Exception { doTheThing(); // this method throws Exception }
See
- MITRE, CWE-397 - Declaration of Throws for Generic Exception
- CERT, ERR07-J. - Do not throw RuntimeException, Exception, or Throwable
Line is longer than 100 characters (found 120). Open
public static List<Validator> getValidators(final String @Nullable [] packages, final String @Nullable [] classes) {
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Checks for long lines.
Rationale: Long lines are hard to read in printouts or if developershave limited screen space for the source code, e.g. if the IDEdisplays additional information like project tree, class hierarchy,etc.
This documentation is written and maintained by the Checkstyle community and is covered under the same license as the Checkstyle project.
Line is longer than 100 characters (found 111). Open
final ClassInfoList allValidatorClasses = scanResult.getClassesImplementing(Validator.class.getName());
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Checks for long lines.
Rationale: Long lines are hard to read in printouts or if developershave limited screen space for the source code, e.g. if the IDEdisplays additional information like project tree, class hierarchy,etc.
This documentation is written and maintained by the Checkstyle community and is covered under the same license as the Checkstyle project.
'}' at column 32 should be alone on a line. Open
private ValidatorLoader() {}
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Checks the placement of right curly braces ('}'
) for code blocks.This check supports if-else, try-catch-finally blocks, while-loops, for-loops,method definitions, class definitions, constructor definitions,instance, static initialization blocks, annotation definitions and enum definitions.For right curly brace of expression blocks of arrays, lambdas and class instancesplease follow issue#5945.For right curly brace of enum constant please follow issue#7519.
This documentation is written and maintained by the Checkstyle community and is covered under the same license as the Checkstyle project.
Line is longer than 100 characters (found 111). Open
packages == null ? new String[] {VALIDATOR_PACKAGE, VALIDATOR_CORE_PACKAGE} : packages)
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- Exclude checks
Checks for long lines.
Rationale: Long lines are hard to read in printouts or if developershave limited screen space for the source code, e.g. if the IDEdisplays additional information like project tree, class hierarchy,etc.
This documentation is written and maintained by the Checkstyle community and is covered under the same license as the Checkstyle project.