UT fail, due to String encoding CharsetEncoder mismatch

InvertedIndexLocalTest build dictionary using the platform's default charset for String encoding which is unsure, however, in getIdFromValueImpl of TrieDictionary using UTF, which cause the mismatch, as follow
2016-04-18 18:03:39,903 ERROR [main] dict.TrieDictionary:173 : Not a valid value: 英国

java.lang.IllegalArgumentException: Value not exists!
at org.apache.kylin.dimension.Dictionary.getIdFromValueBytes(Dictionary.java:160)
at org.apache.kylin.dict.TrieDictionary.getIdFromValueImpl(TrieDictionary.java:158)
at org.apache.kylin.dimension.Dictionary.getIdFromValue(Dictionary.java:96)
at org.apache.kylin.dimension.Dictionary.getIdFromValue(Dictionary.java:76)
at org.apache.kylin.invertedindex.index.TableRecord.setValueString(TableRecord.java:116)
at org.apache.kylin.invertedindex.InvertedIndexLocalTest.loadRecordsSorted(InvertedIndexLocalTest.java:187)
at org.apache.kylin.invertedindex.InvertedIndexLocalTest.testCodec(InvertedIndexLocalTest.java:133)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:271)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:70)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229)
at org.junit.runners.ParentRunner.run(ParentRunner.java:309)
at org.junit.runner.JUnitCore.run(JUnitCore.java:160)
at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:78)
at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:212)
at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:68)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:140)

Java HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize=512M; support was removed in 8.0