Not all codec supported

[albfan]

Exception in thread "main" java.lang.IllegalArgumentException: An SPI class of type org.apache.lucene.codecs.PostingsFormat with name 'Memory' does not exist.  You need to add the corresponding JAR file supporting this SPI to your classpath.  The current classpath supports the following names: [Lucene50]
	at org.apache.lucene.util.NamedSPILoader.lookup(NamedSPILoader.java:116)
	at org.apache.lucene.codecs.PostingsFormat.forName(PostingsFormat.java:112)
	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsReader.<init>(PerFieldPostingsFormat.java:289)
	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat.fieldsProducer(PerFieldPostingsFormat.java:372)
	at org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:109)
	at org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:74)
	at org.apache.lucene.index.StandardDirectoryReader$1.doBody(StandardDirectoryReader.java:62)
	at org.apache.lucene.index.StandardDirectoryReader$1.doBody(StandardDirectoryReader.java:54)
	at org.apache.lucene.index.SegmentInfos$FindSegmentsFile.run(SegmentInfos.java:690)
	at org.apache.lucene.index.StandardDirectoryReader.open(StandardDirectoryReader.java:77)
	at org.apache.lucene.index.DirectoryReader.open(DirectoryReader.java:63)
	at com.github.flaxsearch.util.FSReaderManager.<init>(FSReaderManager.java:35)
	at com.github.flaxsearch.MarpleApplication.run(MarpleApplication.java:52)
	at com.github.flaxsearch.MarpleApplication.run(MarpleApplication.java:34)
	at io.dropwizard.cli.EnvironmentCommand.run(EnvironmentCommand.java:43)
	at io.dropwizard.cli.ConfiguredCommand.run(ConfiguredCommand.java:85)
	at io.dropwizard.cli.Cli.run(Cli.java:75)
	at io.dropwizard.Application.run(Application.java:79)
	at com.github.flaxsearch.MarpleApplication.main(MarpleApplication.java:68)

Looks only Lucene50 is supported