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https://issues.apache.org/jira/browse/GROOVY-11668?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17952679#comment-17952679
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ASF GitHub Bot commented on GROOVY-11668:
-----------------------------------------
jdaugherty commented on code in PR #2228:
URL: https://github.com/apache/groovy/pull/2228#discussion_r2096098929
##########
subprojects/groovy-groovydoc/src/test/groovy/org/codehaus/groovy/tools/groovydoc/GroovyDocToolTest.java:
##########
@@ -1026,6 +1039,63 @@ public void testClassDeclarationHeader() throws
Exception {
assertTrue("The Groovy derived class declaration header should match
in:\n" + groovyDerivedClass, derivedClass.matcher(groovyDerivedClass).find());
}
+ public void testLanguageLevelNotSupported() throws Exception {
+ htmlTool = makeHtmltool(new ArrayList<LinkArgument>(),
ParserConfiguration.LanguageLevel.JAVA_1_4.name(), new Properties());
+
+ final String base =
"org/codehaus/groovy/tools/groovydoc/testfiles/generics";
+
+ PrintStream originalSystemErr = System.err;
+ ByteArrayOutputStream systemErr = new ByteArrayOutputStream();
+ try {
+ System.setErr(new PrintStream(systemErr));
+ htmlTool.add(Arrays.asList(
+ base + "/Java.java"
+ ));
+ }
+ finally {
+ System.setErr(originalSystemErr);
+ }
+ final String errorMessage = systemErr.toString();
+ System.err.println(errorMessage);
Review Comment:
The groovy doc tool uses System.err when outputting, so this is how to
capture that output.
> Groovydoc crashes with higher Java language levels
> --------------------------------------------------
>
> Key: GROOVY-11668
> URL: https://issues.apache.org/jira/browse/GROOVY-11668
> Project: Groovy
> Issue Type: Improvement
> Components: GroovyDoc
> Reporter: James Daugherty
> Priority: Critical
>
> Groovydoc supports both groovy & java files. It supports parsing via the
> JavaParser library & the library supports specifying a language level.
> However, groovydoc does not have a way of setting it for the library at this
> time. By default the library defaults to the "popular" language level of
> that release - for the current JavaParser version that is Java 11.
> As projects update to newer language features, it is desirable to continue
> using groovydoc for later Java versions. This change is to add an option to
> groovydoc to specify the language level based on the possible values in the
> enum ParserConfiguration.LanguageLevel from the JavaParser library.
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