Hey Zhun, Thanks for the detailed problem description. Please see my comments inlined below.
On Thu, Aug 7, 2014 at 6:18 PM, Zhun Shen <shenzhunal...@gmail.com> wrote: Caused by: java.lang.IllegalAccessError: tried to access method > com.google.common.collect.MapMaker.makeComputingMap(Lcom/google/common/base/Function;)Ljava/util/concurrent/ConcurrentMap; > from class com.jolbox.bonecp.BoneCPDataSource > This line indicates that accessing MapMaker.makeComputingMap via Java reflection fails. The version of Guava we used in Spark SQL (as a transitive dependency) is 14.0.1. In this version, MapMaker.makeComputingMap is still public <https://code.google.com/p/guava-libraries/source/browse/guava/src/com/google/common/collect/MapMaker.java?name=v14.0.1#581>. But in newer versions (say 15.0), it’s no longer public <https://code.google.com/p/guava-libraries/source/browse/guava/src/com/google/common/collect/MapMaker.java?name=v15.0> . So my guess is that, a newer version of the Guava library in your classpath shadows the version Spark SQL uses somehow. A quick and dirty fix to see whether this is true is try putting Guava 14.0.1 jar file at the beginning of your classpath and see whether things work. at > com.jolbox.bonecp.BoneCPDataSource.<init>(BoneCPDataSource.java:64) > at > org.datanucleus.store.rdbms.datasource.BoneCPDataSourceFactory.makePooledDataSource(BoneCPDataSourceFactory.java:73) > at > org.datanucleus.store.rdbms.ConnectionFactoryImpl.generateDataSources(ConnectionFactoryImpl.java:217) > at > org.datanucleus.store.rdbms.ConnectionFactoryImpl.initialiseDataSources(ConnectionFactoryImpl.java:110) > at > org.datanucleus.store.rdbms.ConnectionFactoryImpl.<init>(ConnectionFactoryImpl.java:82) > ... 119 more > >
