Searched on Google with the first line of a JAVA stack trace?

We can recommend more relevant solutions and speed up debugging when you paste your entire stack trace with the exception message. Try a sample exception.

Recommended solutions based on your search

java.lang.ArrayIndexOutOfBoundsException: 0	at org.apache.mahout.utils.vectors.VectorHelper$2.apply(VectorHelper.java:132)	at org.apache.mahout.utils.vectors.VectorHelper$2.apply(VectorHelper.java:129)	at com.google.common.collect.Iterators$8.next(Iterators.java:812)	at java.util.AbstractCollection.toArray(AbstractCollection.java:124)	at java.util.ArrayList.(ArrayList.java:131)	at com.google.common.collect.Lists.newArrayList(Lists.java:119)	at org.apache.mahout.utils.vectors.VectorHelper.toWeightedTerms(VectorHelper.java:128)	at org.apache.mahout.utils.vectors.VectorHelper.vectorToJson(VectorHelper.java:147)	at org.apache.mahout.utils.vectors.VectorDumper.run(VectorDumper.java:240)	at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65)	at org.apache.mahout.utils.vectors.VectorDumper.main(VectorDumper.java:260)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)	at java.lang.reflect.Method.invoke(Method.java:597)	at org.apache.hadoop.util.ProgramDriver$ProgramDescription.invoke(ProgramDriver.java:68)	at org.apache.hadoop.util.ProgramDriver.driver(ProgramDriver.java:139)	at org.apache.mahout.driver.MahoutDriver.main(MahoutDriver.java:194)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)	at java.lang.reflect.Method.invoke(Method.java:597)	at org.apache.hadoop.util.RunJar.main(RunJar.java:160)