/* TEMPLATE GENERATED TESTCASE FILE
Filename: CWE789_Uncontrolled_Mem_Alloc__Property_HashMap_12.java
Label Definition File: CWE789_Uncontrolled_Mem_Alloc.int.label.xml
Template File: sources-sink-12.tmpl.java
*/
/*
* @description
* CWE: 789 Uncontrolled Memory Allocation
* BadSource: Property Read data from a system property
* GoodSource: A hardcoded non-zero, non-min, non-max, even number
* BadSink: HashMap Create a HashMap using data as the initial size
* Flow Variant: 12 Control flow: if(IO.staticReturnsTrueOrFalse())
*
* */






import java.util.logging.Level;

import java.util.HashMap;

public class CWE789_Uncontrolled_Mem_Alloc__Property_HashMap_12 extends AbstractTestCase
{
    /* uses badsource and badsink - see how tools report flaws that don't always occur */
    public void bad() throws Throwable
    {
        int data;
        if (IO.staticReturnsTrueOrFalse())
        {
            data = Integer.MIN_VALUE; /* Initialize data */
            /* get system property user.home */
            /* POTENTIAL FLAW: Read data from a system property */
            {
                String stringNumber = System.getProperty("user.home");
                try
                {
                    data = Integer.parseInt(stringNumber.trim());
                }
                catch(NumberFormatException exceptNumberFormat)
                {
                    IO.logger.log(Level.WARNING, "Number format exception parsing data from string", exceptNumberFormat);
                }
            }
        }
        else
        {

            /* FIX: Use a hardcoded number that won't cause underflow, overflow, divide by zero, or loss-of-precision issues */
            data = 2;

        }

        /* POTENTIAL FLAW: Create a HashMap using data as the initial size.  data may be very large, creating memory issues */
        HashMap intHashMap = new HashMap(data);

    }

    /* goodG2B() - use goodsource and badsink by changing the "if" so that
     * both branches use the GoodSource */
    private void goodG2B() throws Throwable
    {
        int data;
        if (IO.staticReturnsTrueOrFalse())
        {
            /* FIX: Use a hardcoded number that won't cause underflow, overflow, divide by zero, or loss-of-precision issues */
            data = 2;
        }
        else
        {

            /* FIX: Use a hardcoded number that won't cause underflow, overflow, divide by zero, or loss-of-precision issues */
            data = 2;

        }

        /* POTENTIAL FLAW: Create a HashMap using data as the initial size.  data may be very large, creating memory issues */
        HashMap intHashMap = new HashMap(data);

    }

    public void good() throws Throwable
    {
        goodG2B();
    }

    /* Below is the main(). It is only used when building this testcase on
     * its own for testing or for building a binary to use in testing binary
     * analysis tools. It is not used when compiling all the testcases as one
     * application, which is how source code analysis tools are tested.
     */
    public static void main(String[] args) throws ClassNotFoundException,
           InstantiationException, IllegalAccessException
    {
        mainFromParent(args);
    }
}
