[jira] [Created] (CASSANDRA-7358) Cassandra is still using guava 15

["Alexander Radzin (JIRA)" <ji...@apache.org>]

Alexander Radzin created CASSANDRA-7358:
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             Summary: Cassandra is still using guava 15
                 Key: CASSANDRA-7358
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-7358
             Project: Cassandra
          Issue Type: Improvement
            Reporter: Alexander Radzin


The problem is that Cassandra still depends on guava 15 while CQL Driver depends on guava 16. Attempts to run both in the same process (that is typical for embedding cassandra e.g. for unit tests) causes incompatibility problems:

{noformat}
java.lang.NoSuchMethodError: com.google.common.util.concurrent.RateLimiter.acquire(I)V
	at org.apache.cassandra.io.compress.CompressedThrottledReader.reBuffer(CompressedThrottledReader.java:40)
	at org.apache.cassandra.io.util.RandomAccessReader.seek(RandomAccessReader.java:280)
	at org.apache.cassandra.io.sstable.SSTableScanner$KeyScanningIterator.computeNext(SSTableScanner.java:262)
	at org.apache.cassandra.io.sstable.SSTableScanner$KeyScanningIterator.computeNext(SSTableScanner.java:203)
	at com.google.common.collect.AbstractIterator.tryToComputeNext(AbstractIterator.java:143)
	at com.google.common.collect.AbstractIterator.hasNext(AbstractIterator.java:138)
	at org.apache.cassandra.io.sstable.SSTableScanner.hasNext(SSTableScanner.java:183)
	at org.apache.cassandra.utils.MergeIterator$Candidate.advance(MergeIterator.java:144)
	at org.apache.cassandra.utils.MergeIterator$ManyToOne.<init>(MergeIterator.java:87)
	at org.apache.cassandra.utils.MergeIterator.get(MergeIterator.java:46)
	at org.apache.cassandra.db.compaction.CompactionIterable.iterator(CompactionIterable.java:47)
	at org.apache.cassandra.db.compaction.CompactionTask.runWith(CompactionTask.java:129)
	at org.apache.cassandra.io.util.DiskAwareRunnable.runMayThrow(DiskAwareRunnable.java:48)
	at org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:28)
	at org.apache.cassandra.db.compaction.CompactionTask.executeInternal(CompactionTask.java:60)
	at org.apache.cassandra.db.compaction.AbstractCompactionTask.execute(AbstractCompactionTask.java:59)
	at org.apache.cassandra.db.compaction.CompactionManager$BackgroundCompactionTask.run(CompactionManager.java:198)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
	at java.util.concurrent.FutureTask.run(FutureTask.java:262)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
	at java.lang.Thread.run(Thread.java:744)
{noformat}


Method {{acquire()}} from class {{com.google.common.util.concurrent.RateLimiter}} accepts one {{int}} parameter but its return value changed. It was {{void}} but now it is {{double}}. As far as I understand this is the reason for attached exception.


This problem does not allow us to upgrade CQL driver to version newer than {{2.0.0-rc2}}.



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