FULL PRODUCT VERSION :
java version "1.8.0_77"
Java(TM) SE Runtime Environment (build 1.8.0_77-b03)
Java HotSpot(TM) 64-Bit Server VM (build 25.77-b03, mixed mode)


ADDITIONAL OS VERSION INFORMATION :
Linux mirkwood 4.4.0-12-generic #28-Ubuntu SMP Wed Mar 9 00:33:55 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux


A DESCRIPTION OF THE PROBLEM :
BigInteger num = new BigInteger("cb459", 16);

throws

java.lang.NumberFormatException: For input string: "cb459""
at java.lang.NumberFormatException.forInputString(NumberFormatException.java:65)
at java.lang.Integer.parseInt(Integer.java:580)
at java.math.BigInteger.<init>(BigInteger.java:461)
at com.snapcard.core.blockchain.interfaces.model.EthBlock.fromStrings(EthBlock.java:63)
at com.snapcard.core.blockchain.interfaces.model.EthBlock.<init>(EthBlock.java:97)
at com.snapcard.core.blockchain.interfaces.eth.EthJsonRpcClient.lambda$getBlockByNumber$10(EthJsonRpcClient.java:114)
at rx.internal.operators.OperatorMap$1.onNext(OperatorMap.java:54)
at rx.internal.operators.OperatorMap$1.onNext(OperatorMap.java:54)
at com.snapcard.core.util.httpclient.FuckVertxHttpClient$RequestLifecycle$1.lambda$completed$0(FuckVertxHttpClient.java:384)
at com.snapcard.core.util.MockVertx.lambda$runOnContext$3(MockVertx.java:154)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)


STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Put in a hex number like "cb459" to BigInteger

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
new BigInteger("cb459", 16).toString(10) should yield 832601
ACTUAL -
java.lang.NumberFormatException: For input string: "cb459""
at java.lang.NumberFormatException.forInputString(NumberFormatException.java:65)
at java.lang.Integer.parseInt(Integer.java:580)
at java.math.BigInteger.<init>(BigInteger.java:461)
at com.snapcard.core.blockchain.interfaces.model.EthBlock.fromStrings(EthBlock.java:63)
at com.snapcard.core.blockchain.interfaces.model.EthBlock.<init>(EthBlock.java:97)
at com.snapcard.core.blockchain.interfaces.eth.EthJsonRpcClient.lambda$getBlockByNumber$10(EthJsonRpcClient.java:114)
at rx.internal.operators.OperatorMap$1.onNext(OperatorMap.java:54)
at rx.internal.operators.OperatorMap$1.onNext(OperatorMap.java:54)
at com.snapcard.core.util.httpclient.FuckVertxHttpClient$RequestLifecycle$1.lambda$completed$0(FuckVertxHttpClient.java:384)
at com.snapcard.core.util.MockVertx.lambda$runOnContext$3(MockVertx.java:154)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)


ERROR MESSAGES/STACK TRACES THAT OCCUR :
java.lang.NumberFormatException: For input string: "cb459""
at java.lang.NumberFormatException.forInputString(NumberFormatException.java:65)
at java.lang.Integer.parseInt(Integer.java:580)
at java.math.BigInteger.<init>(BigInteger.java:461)
at com.snapcard.core.blockchain.interfaces.model.EthBlock.fromStrings(EthBlock.java:63)
at com.snapcard.core.blockchain.interfaces.model.EthBlock.<init>(EthBlock.java:97)
at com.snapcard.core.blockchain.interfaces.eth.EthJsonRpcClient.lambda$getBlockByNumber$10(EthJsonRpcClient.java:114)
at rx.internal.operators.OperatorMap$1.onNext(OperatorMap.java:54)
at rx.internal.operators.OperatorMap$1.onNext(OperatorMap.java:54)
at com.snapcard.core.util.httpclient.FuckVertxHttpClient$RequestLifecycle$1.lambda$completed$0(FuckVertxHttpClient.java:384)
at com.snapcard.core.util.MockVertx.lambda$runOnContext$3(MockVertx.java:154)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)


REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
BigInteger num = new BigInteger("cb459", 16);

---------- END SOURCE ----------