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https://issues.apache.org/jira/browse/IVY-1482?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15743552#comment-15743552
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Maarten Coene commented on IVY-1482:
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I think the example and usecase are invalid.
The ResolutionCacheManager should have a basedir set.
I've updated the implementation of DefaultResolutionCacheManager to throw an
appropriate exception if this isn't the case.
Maarten
> NPE in XmlReportOutputter
> -------------------------
>
> Key: IVY-1482
> URL: https://issues.apache.org/jira/browse/IVY-1482
> Project: Ivy
> Issue Type: Bug
> Components: Core
> Affects Versions: 2.4.0-RC1
> Reporter: M Kim
>
> {code}
> public void output(ConfigurationResolveReport report, String resolveId,
> String[] confs, ResolutionCacheManager cacheMgr) throws IOException {
> File reportFile =
> cacheMgr.getConfigurationResolveReportInCache(resolveId,
> report.getConfiguration());
> File reportParentDir = reportFile.getParentFile();
> reportParentDir.mkdirs(); // NPE
> OutputStream stream = new FileOutputStream(reportFile);
> writer.output(report, confs, stream);
> stream.close();
> //...
> }
> {code}
> In XmlReportOutputter.output method, NPE occurs when
> reportFile.getParentFile() returns null. I think a proper error handling is
> needed for reportFile and reportParentDir before OutputStream is created.
> <Test case>
> {code}
> public void test1() {
> Ivy14 ivy = new org.apache.ivy.Ivy14();
> ManifestHeaderElement header = new ManifestHeaderElement();
> ModuleRevisionId resolveId = ModuleRevisionId.newInstance("", "ISO-8859-1",
> "default", "default", header.getAttributes(), true);
> Pack200Packing pack = new Pack200Packing();
> String[] strings = pack.getNames();
> ResolveReport report = ivy.resolve(resolveId, strings);
> ResolveOptions options = new ResolveOptions();
> report.output(new ReportOutputter[]{new XmlReportOutputter()},
> (ResolutionCacheManager)new DefaultResolutionCacheManager(),
> options.setResolveId("latest-revision").setOutputReport(true));
> }
> {code}
> <Stack trace>
> {code}
> 1) test1(Test0)java.lang.NullPointerException
> at
> org.apache.ivy.plugins.report.XmlReportOutputter.output(XmlReportOutputter.java:56)
> at
> org.apache.ivy.plugins.report.XmlReportOutputter.output(XmlReportOutputter.java:47)
> at org.apache.ivy.core.report.ResolveReport.output(ResolveReport.java:106)
> at Test0.test1(Test0.java:48)
> {code}
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