@Override
	public boolean hasFlowReferencesFrom(Address addr) {
		lock.acquire();
		try {
			RefList fromRefs = getFromRefs(addr);
			if (fromRefs == null) {
				return false;
			}
			ReferenceIterator it = fromRefs.getRefs();
			while (it.hasNext()) {
				Reference ref = it.next();
				if (ref.getReferenceType().isFlow()) {
					return true;
				}
			}
		}
		catch (IOException e) {
			program.dbError(e);
		}
		finally {
			lock.release();
		}
		return false;
	}
Get all memory references with the given from address at opIndex.
@param fromAddr the from address
@param opIndex the operand index
@return the references
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/database/references/ReferenceDBManager.java