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java.lang.NoClassDefFoundError: io/druid/indexing/common/task/ AbstractTask at java.lang.ClassLoader.defineClass1(Native Method)[na:1.8.0_45] at java.lang.ClassLoader.defineClass([na:1.8.0_45] at[na:1.8.0_45] at[na:1.8.0_45] at$100([na:1.8.0_45] at$[na:1.8.0_45] at$[na:1.8.0_45] at Method)[na:1.8.0_45] at[na:1.8.0_45] at java.lang.ClassLoader.loadClass([na:1.8.0_45] at java.lang.ClassLoader.loadClass([na:1.8.0_45]