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Posted to dev@ignite.apache.org by "Valentin Kulichenko (JIRA)" <ji...@apache.org> on 2016/03/16 21:41:34 UTC

[jira] [Created] (IGNITE-2852) TreeMap can't be converted to portable

Valentin Kulichenko created IGNITE-2852:
-------------------------------------------

             Summary: TreeMap can't be converted to portable
                 Key: IGNITE-2852
                 URL: https://issues.apache.org/jira/browse/IGNITE-2852
             Project: Ignite
          Issue Type: Bug
          Components: binary
    Affects Versions: 1.5.0.final
            Reporter: Valentin Kulichenko
             Fix For: 1.6


When trying to convert {{TreeMap}} into binary object using {{toBinary}} method, the following exception fails:

{noformat}
Exception in thread "main" java.lang.ClassCastException: org.apache.ignite.internal.binary.BinaryObjectImpl cannot be cast to java.lang.Comparable
	at java.util.TreeMap.compare(TreeMap.java:1188)
	at java.util.TreeMap.put(TreeMap.java:531)
	at org.apache.ignite.internal.processors.cache.binary.CacheObjectBinaryProcessorImpl.marshalToBinary(CacheObjectBinaryProcessorImpl.java:495)
	at org.apache.ignite.internal.processors.cache.binary.IgniteBinaryImpl.toBinary(IgniteBinaryImpl.java:67)
	at TreeMapTest.main(TreeMapTest.java:15)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:606)
	at com.intellij.rt.execution.application.AppMain.main(AppMain.java:144)
{noformat}

This happens because maps are not wrapped into binary objects, therefore we create another {{TreeMap}} and put {{BinaryObject}} instances, which are not {{Comparable}}.



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