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From "Ray Chiang (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HADOOP-14900) Errors in trunk with early versions of Java 8
Date Fri, 22 Sep 2017 18:31:00 GMT
Ray Chiang created HADOOP-14900:
-----------------------------------

             Summary: Errors in trunk with early versions of Java 8
                 Key: HADOOP-14900
                 URL: https://issues.apache.org/jira/browse/HADOOP-14900
             Project: Hadoop Common
          Issue Type: Bug
          Components: tools
    Affects Versions: 3.0.0-beta1
            Reporter: Ray Chiang
            Assignee: Ray Chiang


Just to document the issue in case other developers run into this.  Compiling trunk with jdk
1.8u05 gives the following errors when compiling:

{noformat}
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.1:testCompile
(default-testCompile) on project hadoop-aws: Compilation failure: Compilation failure:
[ERROR] /root/hadoop/hadoop-tools/hadoop-aws/src/test/java/org/apache/hadoop/fs/s3a/ITestS3AEncryptionAlgorithmValidation.java:[45,5]
reference to intercept is ambiguous
[ERROR]   both method <E>intercept(java.lang.Class<E>,java.lang.String,org.apache.hadoop.test.LambdaTestUtils.VoidCallable)
in org.apache.hadoop.test.LambdaTestUtils and method <T,E>intercept(java.lang.Class<E>,java.lang.String,java.util.concurrent.Callable<T>)
in org.apache.hadoop.test.LambdaTestUtils match
[ERROR] /root/hadoop/hadoop-tools/hadoop-aws/src/test/java/org/apache/hadoop/fs/s3a/ITestS3AEncryptionAlgorithmValidation.java:[69,5]
reference to intercept is ambiguous
[ERROR]   both method <E>intercept(java.lang.Class<E>,java.lang.String,org.apache.hadoop.test.LambdaTestUtils.VoidCallable)
in org.apache.hadoop.test.LambdaTestUtils and method <T,E>intercept(java.lang.Class<E>,java.lang.String,java.util.concurrent.Callable<T>)
in org.apache.hadoop.test.LambdaTestUtils match
[ERROR] /root/hadoop/hadoop-tools/hadoop-aws/src/test/java/org/apache/hadoop/fs/s3a/ITestS3AEncryptionAlgorithmValidation.java:[94,5]
reference to intercept is ambiguous
[ERROR]   both method <E>intercept(java.lang.Class<E>,java.lang.String,org.apache.hadoop.test.LambdaTestUtils.VoidCallable)
in org.apache.hadoop.test.LambdaTestUtils and method <T,E>intercept(java.lang.Class<E>,java.lang.String,java.util.concurrent.Callable<T>)
in org.apache.hadoop.test.LambdaTestUtils match
[ERROR] /root/hadoop/hadoop-tools/hadoop-aws/src/test/java/org/apache/hadoop/fs/s3a/ITestS3AEncryptionAlgorithmValidation.java:[120,5]
reference to intercept is ambiguous
[ERROR]   both method <E>intercept(java.lang.Class<E>,java.lang.String,org.apache.hadoop.test.LambdaTestUtils.VoidCallable)
in org.apache.hadoop.test.LambdaTestUtils and method <T,E>intercept(java.lang.Class<E>,java.lang.String,java.util.concurrent.Callable<T>)
in org.apache.hadoop.test.LambdaTestUtils match
{noformat}

Based on my testing jdk 1.8u92 doesn't produce this error.

I don't think this issue needs to be fixed in the code, but documenting it in JIRA.



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