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Rick Hillegas commented on DERBY-6998: -------------------------------------- Attaching derby-6998-01-ab-tightenReturnType.diff. This patch tightens a generic type declaration so that the warning no longer appears. This patch also turns off the echoproperties call in the master build script. No-one has taken advantage of the extra output and it is overwhelming. I will run tests on both Java 9 and Java 10. Touches the following file: {noformat} ----------------------- M build.xml Turn off the echoproperties diagnostic. ----------------------- M java/build/org/apache/derbyBuild/lastgoodjarcontents/insane.derbyTesting.jar.lastcontents M java/build/org/apache/derbyBuild/lastgoodjarcontents/sane.derbyTesting.jar.lastcontents M java/build/org/apache/derbyBuild/lastgoodjarcontents/sane.derbytools.jar.lastcontents M java/testing/org/apache/derbyTesting/functionTests/harness/JavaVersionHolder.java A java/testing/org/apache/derbyTesting/functionTests/harness/jdk100.java Make the tests recognize JDK 10. ----------------------- M java/engine/org/apache/derby/iapi/types/SqlXmlUtil.java Fix the new warning raised when we compile this class using JDK 10. {noformat} > Make it possible to build Derby cleanly using JDK 10 > ---------------------------------------------------- > > Key: DERBY-6998 > URL: https://issues.apache.org/jira/browse/DERBY-6998 > Project: Derby > Issue Type: Bug > Components: Build tools > Affects Versions: 10.15.0.0 > Reporter: Rick Hillegas > Priority: Major > Attachments: derby-6998-01-ab-tightenReturnType.diff > > > When I build Derby using JDK 10, I get the following warning: > {noformat} > [javac] > /Users/rhillegas/derby/mainline/trunk/java/engine/org/apache/derby/iapi/types/SqlXmlUtil.java:728: > warning: [unchecked] getPrefixes(String) in NullNamespaceContext implements > getPrefixes(String) in NamespaceContext > [javac] public Iterator getPrefixes(String namespaceURI) { > [javac] ^ > [javac] return type requires unchecked conversion from Iterator to > Iterator<String> > [javac] 1 warning > {noformat} > I will clean this up. -- This message was sent by Atlassian JIRA (v7.6.3#76005)