[ https://issues.apache.org/jira/browse/SPARK-3944?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Shiti Saxena updated SPARK-3944: -------------------------------- Description: The method tries to match a String (`uri.getScheme`) to obtain the result. The value from `uri.getScheme` can be null. Pattern matching using Regex when String value is null throws NPE in Scala 2.11.2. whereas it works in 2.10.4 Running the same code snippet gives different results {noformat} Welcome to Scala version 2.10.4 (Java HotSpot(TM) 64-Bit Server VM, Java 1.7.0_60). Type in expressions to have them evaluated. Type :help for more information. scala> val pattern = "(.*)".r pattern: scala.util.matching.Regex = (.*) scala> val x:String = null x: String = null scala> x match { case pattern(x) => println("Success") | case null => println("Fail") | } Fail scala> {noformat} {noformat} Welcome to Scala version 2.11.2 (Java HotSpot(TM) 64-Bit Server VM, Java 1.7.0_60). Type in expressions to have them evaluated. Type :help for more information. scala> val pattern = "(.*)".r pattern: scala.util.matching.Regex = (.*) scala> val x:String = null x: String = null scala> x match { case pattern(x) => println("Success") | case null => println("Fail") | } java.lang.NullPointerException at java.util.regex.Matcher.getTextLength(Matcher.java:1234) at java.util.regex.Matcher.reset(Matcher.java:308) at java.util.regex.Matcher.<init>(Matcher.java:228) at java.util.regex.Pattern.matcher(Pattern.java:1088) at scala.util.matching.Regex.unapplySeq(Regex.scala:206) ... 47 elided {noformat} > Utils.resolveURI is not consistent on upgrading scalaVersion to 2.11.2 > ---------------------------------------------------------------------- > > Key: SPARK-3944 > URL: https://issues.apache.org/jira/browse/SPARK-3944 > Project: Spark > Issue Type: Bug > Reporter: Shiti Saxena > > The method tries to match a String (`uri.getScheme`) to obtain the result. > The value from `uri.getScheme` can be null. > Pattern matching using Regex when String value is null throws NPE in Scala > 2.11.2. whereas it works in 2.10.4 > Running the same code snippet gives different results > {noformat} > Welcome to Scala version 2.10.4 (Java HotSpot(TM) 64-Bit Server VM, Java > 1.7.0_60). > Type in expressions to have them evaluated. > Type :help for more information. > scala> val pattern = "(.*)".r > pattern: scala.util.matching.Regex = (.*) > scala> val x:String = null > x: String = null > scala> x match { case pattern(x) => println("Success") > | case null => println("Fail") > | } > Fail > scala> > {noformat} > {noformat} > Welcome to Scala version 2.11.2 (Java HotSpot(TM) 64-Bit Server VM, Java > 1.7.0_60). > Type in expressions to have them evaluated. > Type :help for more information. > scala> val pattern = "(.*)".r > pattern: scala.util.matching.Regex = (.*) > scala> val x:String = null > x: String = null > scala> x match { case pattern(x) => println("Success") > | case null => println("Fail") > | } > java.lang.NullPointerException > at java.util.regex.Matcher.getTextLength(Matcher.java:1234) > at java.util.regex.Matcher.reset(Matcher.java:308) > at java.util.regex.Matcher.<init>(Matcher.java:228) > at java.util.regex.Pattern.matcher(Pattern.java:1088) > at scala.util.matching.Regex.unapplySeq(Regex.scala:206) > ... 47 elided > {noformat} -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org