java.lang.NullPointerException: This exception has no message.

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java.lang.NullPointerException:
at align2.Block.(Block.java:33)
at align2.Block.read(Block.java:156)
at align2.IndexMaker4$BlockMaker.makeArrays(IndexMaker4.java:139)
at align2.IndexMaker4$BlockMaker.run(IndexMaker4.java:127)

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