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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.
DL: Synchronization on Boolean could lead to deadlock (DL_SYNCHRONIZATION_ON_BOOLEAN)
DL: Synchronization on Boolean could lead to deadlock (DL_SYNCHRONIZATION_ON_BOOLEAN)
The code synchronizes on a boxed primitive constant, such as an Boolean.
private static Boolean inited = Boolean.FALSE;
...
synchronized(inited) {
if (!inited) {
init();
inited = Boolean.TRUE;
}
}
...
Since there normally exist only two Boolean objects, this code could be synchronizing on the same object as other, unrelated code, leading to unresponsiveness
and possible deadlock