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Sanity4J was created to simplify running multiple static code analysis tools on the Java projects. It provides a single entry point to run all the selected tools and produce a consolidated report, which presents all findings in an easily accessible manner.

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InefficientStringBuffering

InefficientStringBuffering

Avoid concatenating non-literals in a StringBuffer constructor or append() since intermediate buffers will need to be be created and destroyed by the JVM.
This rule is defined by the following Java class: net.sourceforge.pmd.lang.java.rule.strings.InefficientStringBufferingRule
Example(s):



    // Avoid this, two buffers are actually being created here
StringBuffer sb = new StringBuffer("tmp = "+System.getProperty("java.io.tmpdir"));
    
    // do this instead
StringBuffer sb = new StringBuffer("tmp = ");
sb.append(System.getProperty("java.io.tmpdir"));