/super-csv/src/main/java/org/supercsv/prefs/CsvPreference.java
if ( encoder == null) {   throw new NullPointerException( "encoder should not be null") ; }
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public Builder ignoreEmptyLines(final boolean ignoreEmptyLines) { this.ignoreEmptyLines = ignoreEmptyLines; return this; } public Builder skipComments(final CommentMatcher commentMatcher) { if( commentMatcher == null ) { <extra_id_0> } this.commentMatcher = commentMatcher; return this; } public Builder useEncoder(final CsvEncoder encoder) { if( encoder == null ) {