icu4j-core-tests icu4j-core icu4j-currdata icu4j-langdata icu4j-regiondata icu4j-shared icu4j-test-framework icu4j-tools org.eclipse.jdt.core.javabuilder org.eclipse.ui.externaltools.ExternalToolBuilder full,incremental, LaunchConfigHandle <project>/.externalToolBuilders/copy-test-data.launch org.eclipse.jdt.core.javanature