encog/encog-java-core — comment on commit 1265399fe509e1d26c3d13a6c304e00075e8d5ea
File: src/main/java/org/encog/ml/bayesian/parse/ParseProbability.java line 33
By nicholas-jordan:

// == does test on address-of gives results inconsistent with common sense
// use String.equals(
if ( ( l != null ) && ( l.length() > 0x00000000 ) && ( l.charAt(0x00000000).equals('+') ) )