[mojo-dev] [jira] (MANIMALSNIFFER-62) NullPointerException if a method return type is not in the signature

[Thomas Segismont (JIRA)]

Title: Message Title

Thomas Segismont created an issue   Mojo's Animal Sniffer / MANIMALSNIFFER-62 NullPointerException if a method return type is not in the signature Issue Type: Bug Affects Versions: 1.14 Assignee: Stephen Connolly Attachments: fix.patch, stacktrace.txt, test.zip Created: 03/Mar/15 7:32 AM Priority: Major Reporter: Thomas Segismont This is most likely a regression due to MANIMALSNIFFER-49 If the code you're checking has a method with a return type which is not present in the signature, a NullPointerException is thrown. Given the following code: package test; import static java.util.stream.Collectors.joining; import java.util.ArrayList; import java.util.List; import java.util.stream.Stream; /** * Hello world! * */ public class App { private static Stream<String> getStringStream() { List<String> list = new ArrayList<String>(); list.add("John"); list.add("Paul"); list.add("Robert"); return list.stream(); } public static void main( String[] args ) { Stream<String> stream = getStringStream(); System.out.printf("Hello %s!", stream.collect(joining(", "))); } } When you're building with JDK 8 and checking the code against the Java 6 or 7 signature, you should see messages like: [ERROR] /home/tsegismont/Projets/test/src/main/java/test/App.java:21: Undefined reference: java.util.stream.Stream java.util.List.stream() [ERROR] /home/tsegismont/Projets/test/src/main/java/test/App.java:27: Undefined reference: java.util.stream.Collector java.util.stream.Collectors.joining(CharSequence) [ERROR] /home/tsegismont/Projets/test/src/main/java/test/App.java:27: Undefined reference: Object java.util.stream.Stream.collect(java.util.stream.Collector) Instead, the build fails with a NPE: [ERROR] Failed to execute goal org.codehaus.mojo:animal-sniffer-maven-plugin:1.14:check (java-api-check) on project test: Execution java-api-check of goal org.codehaus.mojo:animal-sniffer-maven-plugin:1.14:check failed. NullPointerException -> [Help 1] Full stack trace, test project and patch attached. Add Comment   This message was sent by Atlassian JIRA (v6.1.6#6162-sha1:7af547c) --------------------------------------------------------------------- To unsubscribe from this list, please visit: http://xircles.codehaus.org/manage_email