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resources.report.rules.pmd.InefficientStringBuffering.html Maven / Gradle / Ivy

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"));