On 3/2/2018 7:42 AM, ramyogi wrote:
solr-repo/lucene-solr/build.xml:21: The following error occurred while
executing this line:/solr-repo/lucene-solr/lucene/common-build.xml:623:
java.lang.NullPointerException  at java.util.Arrays.stream(Arrays.java:5004)
at java.util.stream.Stream.of(Stream.java:1000) at
java.util.stream.ReferencePipeline$7$1.accept(ReferencePipeline.java:267)       
at
java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193)I
am trying to build and debug SOLR . seems build throwing error. anything to
set before run build ?


Downgrade your ant version from 1.10.2 to 1.10.1 or 1.9.x. There's a bug in 1.10.2 that produces NullPointerException anytime ant is run in the Lucene/Solr source code.

Thanks,
Shawn

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