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

Go to download

Show more of this group Show more artifacts with this name
Show all versions of sanity4j Show documentation

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.

There is a newer version: 1.8.2

Show newest version



InsufficientStringBufferDeclaration

InsufficientStringBufferDeclaration

Failing to pre-size a StringBuffer or StringBuilder properly could cause it to re-size many times during runtime. This rule attempts to determine the total number the characters that are actually passed into StringBuffer.append(), but represents a best guess “worst case” scenario. An empty StringBuffer/StringBuilder constructor initializes the object to 16 characters. This default is assumed if the length of the constructor can not be determined.
This rule is defined by the following Java class: net.sourceforge.pmd.lang.java.rule.strings.InsufficientStringBufferDeclarationRule
Example(s):



StringBuffer bad = new StringBuffer();
bad.append("This is a long string that will exceed the default 16 characters");
        
StringBuffer good = new StringBuffer(41);
good.append("This is a long string, which is pre-sized");