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org.sonar.l10n.java.rules.squid.S1943.html Maven / Gradle / Ivy

Using classes and methods that rely on the default system encoding can result in code that works fine in its "home" environment. But that code may break for customers who use different encodings in ways that are extremely difficult to diagnose and nearly, if not completely, impossible to reproduce when it's time to fix them.
This rule detects uses of the following classes and methods:

 FileReader
 FileWriter
 String constructors with a byte[] argument but no Charset argument

 String(byte[] bytes)
 String(byte[] bytes, int offset, int length) 

 String.getBytes()
 String.getBytes(int srcBegin, int srcEnd, byte[] dst, int dstBegin)
 InputStreamReader(InputStream in)
 OutputStreamWriter(OutputStream out)
 ByteArrayOutputStream.toString()
 Some Formatter constructors

 Formatter(String fileName)
 Formatter(File file)
 Formatter(OutputStream os)

 Some Scanner constructors

 Scanner(File source)
 Scanner(Path source)
 Scanner(InputStream source)

 Some PrintStream constructors

 PrintStream(File file)
 PrintStream(OutputStream out)
 PrintStream(OutputStream out, boolean autoFlush)
 PrintStream(String fileName)

 Some PrintWriter constructors

 PrintWriter(File file)
 PrintWriter(OutputStream out)
 PrintWriter(OutputStream out, boolean autoFlush)
 PrintWriter(String fileName)

 IOUtils methods which accept an encoding argument when that argument is null, and overloads of those methods that omit the encoding argument