fop-core/src/main/java/org/apache/fop/complexscripts/fonts/GlyphPositioningTable.java [1575:1612]:
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        private void populate(List entries) {
            if (entries == null) {
                throw new AdvancedTypographicTableFormatException("illegal entries, must be non-null");
            } else if (entries.size() != 1) {
                throw new AdvancedTypographicTableFormatException("illegal entries, " + entries.size() + " entries present, but requires 1 entry");
            } else {
                Object o;
                if (((o = entries.get(0)) == null) || !(o instanceof RuleSet[])) {
                    throw new AdvancedTypographicTableFormatException("illegal entries, first entry must be an RuleSet[], but is: " + ((o != null) ? o.getClass() : null));
                } else {
                    rsa = (RuleSet[]) o;
                }
            }
        }
    }

    private static class ChainedContextualSubtableFormat2 extends ChainedContextualSubtable {
        private GlyphClassTable icdt;                   // input class def table
        private GlyphClassTable bcdt;                   // backtrack class def table
        private GlyphClassTable lcdt;                   // lookahead class def table
        private int ngc;                                // class set count
        private RuleSet[] rsa;                          // rule set array, ordered by class number [0...ngc - 1]
        ChainedContextualSubtableFormat2(String id, int sequence, int flags, int format, GlyphCoverageTable coverage, List entries) {
            super(id, sequence, flags, format, coverage, entries);
            populate(entries);
        }
        /** {@inheritDoc} */
        public List getEntries() {
            if (rsa != null) {
                List entries = new ArrayList(5);
                entries.add(icdt);
                entries.add(bcdt);
                entries.add(lcdt);
                entries.add(ngc);
                entries.add(rsa);
                return entries;
            } else {
                return null;
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fop-core/src/main/java/org/apache/fop/complexscripts/fonts/GlyphSubstitutionTable.java [1103:1140]:
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        private void populate(List entries) {
            if (entries == null) {
                throw new AdvancedTypographicTableFormatException("illegal entries, must be non-null");
            } else if (entries.size() != 1) {
                throw new AdvancedTypographicTableFormatException("illegal entries, " + entries.size() + " entries present, but requires 1 entry");
            } else {
                Object o;
                if (((o = entries.get(0)) == null) || !(o instanceof RuleSet[])) {
                    throw new AdvancedTypographicTableFormatException("illegal entries, first entry must be an RuleSet[], but is: " + ((o != null) ? o.getClass() : null));
                } else {
                    rsa = (RuleSet[]) o;
                }
            }
        }
    }

    private static class ChainedContextualSubtableFormat2 extends ChainedContextualSubtable {
        private GlyphClassTable icdt;                   // input class def table
        private GlyphClassTable bcdt;                   // backtrack class def table
        private GlyphClassTable lcdt;                   // lookahead class def table
        private int ngc;                                // class set count
        private RuleSet[] rsa;                          // rule set array, ordered by class number [0...ngc - 1]
        ChainedContextualSubtableFormat2(String id, int sequence, int flags, int format, GlyphCoverageTable coverage, List entries) {
            super(id, sequence, flags, format, coverage, entries);
            populate(entries);
        }
        /** {@inheritDoc} */
        public List getEntries() {
            if (rsa != null) {
                List entries = new ArrayList(5);
                entries.add(icdt);
                entries.add(bcdt);
                entries.add(lcdt);
                entries.add(ngc);
                entries.add(rsa);
                return entries;
            } else {
                return null;
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