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| CodeSonar® 9.2p0 | CONFIDENTIAL | CodeSecure Inc |
Accessibility of a program member is bypassed through reflection.
It is considered to be a bad practice to bypass and not consider the accessibility of a method or a field. So one should never change or ignore accessibility of classes, methods or fields since it could lead to security issues. This checker warns if this is achieved through reflection.
| Class Name | Reflection Bypasses Member Accessibility (Java) | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Significance | reliability | ||||||||||||
| Mnemonic | JAVA.CLASS.ACCESS.BYPASS | ||||||||||||
| Categories |
|
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| Availability | Available for Java and Kotlin. |
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| Enabling | Checks for this warning class are enabled by
default. To disable them, add the following WARNING_FILTER rule to the
project configuration file.
WARNING_FILTER += discard class="Reflection Bypasses Member Accessibility (Java)" |
public class ReflectionCode
{
public void reflectionExample(int newValue) throws NoSuchMethodException{
PrivateMembers pm = new PrivateMembers();
Class<PrivateMembers> class1 = PrivateMembers.class;
class1.getMethod("privateMethod").setAccessible(true); /* Reflection Modifies Member Accessibility (Java) warning issued here:
* setAccessible(true) will disable accessibility checks from the JVM on the
* target program member, allowing it to be accessed even when its visibility
* would prevent it.
*/
class1.getDeclaredField("myInt").setInt(pm, newValue); /* Reflection Bypasses Member Accessibility (Java) warning issued here:
* invoking getDeclaredXXX methods of java.lang.Class will also
* retrieve non-visible members
*/
}
}
public class PrivateMembers {
private int myInt;
private void privateMethod() {
System.out.println(myInt);
}
}
Don't change or bypass the accessibility level of program members. Only use reflective method calls that take into account the visibility of the target member.
The following configuration file parameters affect checks for this warning class.
To report problems with this documentation, please visit https://support.codesecure.com/.