/guava/guava/src/com/google/common/cache/CacheBuilderSpec.java
if ( keyStrength != null) {
if ( refreshTimeUnit != null ) {
if (writeExpirationTimeUnit != null) { builder.expireAfterWrite(writeExpirationDuration, writeExpirationTimeUnit); } if (accessExpirationTimeUnit != null) { builder.expireAfterAccess(accessExpirationDuration, accessExpirationTimeUnit); } <extra_id_0> builder.refreshAfterWrite(refreshDuration, refreshTimeUnit); } return builder; } public String toParsableString() { return specification;