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org.codehaus.sonar-plugins.java
sonar-pmd-plugin
2.3
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PositionLiteralsFirstInCaseInsensitiveComparisons.html

org.sonar.l10n.pmd.rules.pmd.PositionLiteralsFirstInCaseInsensitiveComparisons.html Maven / Gradle / Ivy

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PMD is a tool that looks for potential problems like possible bugs, dead code, suboptimal code, overcomplicated expressions or duplicate code.

There is a newer version: 2.4

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Position literals first in comparisons, if the second argument is null then NullPointerExceptions 
can be avoided, they will just return false. Example: 
class Foo {
  boolean bar(String x) {
    return x.equalsIgnoreCase("2"); // should be "2".equalsIgnoreCase(x)
  }
}