@Override
public Object visit(ASTVariableDeclarator node, Object data) {
// Search Catch stmt nodes for variable used to store improperly created
// throwable or exception
try {
if (node.hasDescendantMatchingXPath(FIND_THROWABLE_INSTANCE)) {
String variableName = node.jjtGetChild(0).getImage(); // VariableDeclatorId
ASTCatchStatement catchStmt = node.getFirstParentOfType(ASTCatchStatement.class);
while (catchStmt != null) {
List<Node> violations =
catchStmt.findChildNodesWithXPath(
"//Expression/PrimaryExpression/PrimaryPrefix/Name[@Image = '"
+ variableName
+ "']");
if (!violations.isEmpty()) {
// If, after this allocation, the 'initCause' method is
// called, and the ex passed
// this is not a violation
if (!useInitCause(violations.get(0), catchStmt)) {
addViolation(data, node);
}
}
// check ASTCatchStatement higher up
catchStmt = catchStmt.getFirstParentOfType(ASTCatchStatement.class);
}
}
return super.visit(node, data);
} catch (JaxenException e) {
// XPath is valid, this should never happens...
throw new IllegalStateException(e);
}
}
