Sorry, Windows 10 is not happy in building Elephas - something goes
wrong with the hadoop file system (sounds like a Hadoop bug rather
than Jena)
mvn clean install fails at:
[INFO] Apache Jena - Elephas - I/O ........................ FAILURE [09:44 min]
[INFO] Apache Jena - Elephas - Map/Reduce ................. SKIPPED
[INFO] Apache Jena - Elephas - Statistics Demo App ........ SKIPPED
[INFO] Apache Jena - Distribution ......................... SKIPPED
[INFO] Apache Jena - OSGi ................................. SKIPPED
[INFO] Apache Jena - OSGi bundle .......................... SKIPPED
[INFO] Apache Jena - OSGi Karaf features .................. SKIPPED
[INFO] Apache Jena - Extras ............................... SKIPPED
[INFO] Apache Jena - Extras - Query Builder ............... SKIPPED
[INFO] Apache Jena ........................................ SKIPPED
(In other words, all the other worked fine :)
output_04[3](org.apache.jena.hadoop.rdf.io.output.turtle.StreamedTurtleOutputTest)
Time elapsed: 0.017 sec <<< ERROR!
java.lang.NullPointerException: null
at java.lang.ProcessBuilder.start(ProcessBuilder.java:1012)
at org.apache.hadoop.util.Shell.runCommand(Shell.java:482)
at org.apache.hadoop.util.Shell.run(Shell.java:455)
at
org.apache.hadoop.util.Shell$ShellCommandExecutor.execute(Shell.java:715)
at org.apache.hadoop.util.Shell.execCommand(Shell.java:808)
at org.apache.hadoop.util.Shell.execCommand(Shell.java:791)
at
org.apache.hadoop.fs.RawLocalFileSystem.setPermission(RawLocalFileSystem.java:656)
at
org.apache.hadoop.fs.FilterFileSystem.setPermission(FilterFileSystem.java:490)
at
org.apache.hadoop.fs.ChecksumFileSystem.create(ChecksumFileSystem.java:462)
at
org.apache.hadoop.fs.ChecksumFileSystem.create(ChecksumFileSystem.java:428)
at org.apache.hadoop.fs.FileSystem.create(FileSystem.java:908)
at org.apache.hadoop.fs.FileSystem.create(FileSystem.java:889)
at org.apache.hadoop.fs.FileSystem.create(FileSystem.java:786)
at
org.apache.jena.hadoop.rdf.io.output.AbstractNodeTupleOutputFormat.getRecordWriter(AbstractNodeTupleOutputFormat.java:77)
at
org.apache.jena.hadoop.rdf.io.output.AbstractNodeTupleOutputFormatTests.testOutput(AbstractNodeTupleOutputFormatTests.java:199)
at
org.apache.jena.hadoop.rdf.io.output.AbstractNodeTupleOutputFormatTests.output_04(AbstractNodeTupleOutputFormatTests.java:253)
at sun.reflect.GeneratedMethodAccessor25.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at
org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
at
org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at
org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
at
org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at org.junit.rules.ExternalResource$1.evaluate(ExternalResource.java:48)
at org.junit.rules.RunRules.evaluate(RunRules.java:20)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
at
org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
at
org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at org.junit.runners.Suite.runChild(Suite.java:128)
at org.junit.runners.Suite.runChild(Suite.java:27)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at
org.apache.maven.surefire.junit4.JUnit4Provider.execute(JUnit4Provider.java:264)
at
org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:153)
at
org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:124)
at
org.apache.maven.surefire.booter.ForkedBooter.invokeProviderInSameClassLoader(ForkedBooter.java:200)
at
org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:153)
at
org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:103)
This is repeated across all the Elephas IO tests.
Tests run: 984, Failures: 0, Errors: 173, Skipped: 183
Apache Maven 3.3.9 (bb52d8502b132ec0a5a3f4c09453c07478323dc5;
2015-11-10T16:41:47+00:00)
Maven home: C:\Program Files\apache-maven-3.3.9\bin\..
Java version: 1.8.0_92, vendor: Oracle Corporation
Java home: C:\Program Files\Java\jdk1.8.0_92\jre
Default locale: en_GB, platform encoding: Cp1252
OS name: "windows 10", version: "10.0", arch: "amd64", family: "dos"
BTW, this is not the standard Windows 10, but Windows 10 Pro Insider
Preview Build 14332 - preview of what will become the "Anniersary
Edition" later this summer.
This is not a regression as I get the same error when trying to build
jena-elephas 3.0.1.
Perhaps someone with a normal Windows 10 and JDK 8 could have a go at
compiling jena-elephas? To avoid building all of 3.1.0 RC you can
always try on the 3.0.1 source release from
http://jena.apache.org/download/index.cgi as it seems the problem is
also there.