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codeql/java/ql/src/Frameworks/JavaEE/EJB/EjbThreads.ql
2018-10-11 11:31:37 +02:00

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/**
* @name EJB uses threads
* @description An EJB should not attempt to manage threads,
* as it could interfere with the EJB container's operation.
* @kind problem
* @problem.severity error
* @precision low
* @id java/ejb/threads
* @tags reliability
* external/cwe/cwe-383
* external/cwe/cwe-573
*/
import java
import semmle.code.java.frameworks.javaee.ejb.EJB
import semmle.code.java.frameworks.javaee.ejb.EJBRestrictions
/*
* JSR 220: Enterprise JavaBeansTM,Version 3.0
* EJB Core Contracts and Requirements
* Section 21.1.2 Programming Restrictions
*
* - The enterprise bean must not attempt to manage threads. The enterprise bean must not attempt
* to start, stop, suspend, or resume a thread, or to change a thread's priority or name. The enter-
* prise bean must not attempt to manage thread groups.
*
* These functions are reserved for the EJB container. Allowing the enterprise bean to manage threads
* would decrease the container's ability to properly manage the runtime environment.
*/
from Callable origin, ForbiddenThreadingCallable target, Call call
where ejbCalls(origin, target, call)
select origin, "EJB should not attempt to manage threads by calling $@.", call,
target.getDeclaringType().getName() + "." + target.getName()