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| <title>Eclipse Project 4.3 M1 News</title> |
| </head> |
| <body> |
| <h1>Eclipse Project 4.3 M1 - New and Noteworthy</h1> |
| <p>Here are some of the more noteworthy things available in milestone build M1 |
| (August 10, 2012) which is now available for <a href="http://download.eclipse.org/eclipse/downloads/" target="_top">download</a>. |
| </p> |
| <ul> |
| <li><a href="#Platform">Platform</a></li> |
| <li><a href="#JDT">JDT</a></li> |
| </ul> |
| |
| <table class="news" border="0" cellpadding="10" cellspacing="0" width="80%"> |
| <tr> |
| <td colspan="2" class="section" id="Platform">Platform</td> |
| </tr> |
| <tr id="ua-lucene"> |
| <td class="title">Migrated to Lucene 3.5</td> |
| <td class="content"> |
| The Eclipse platform help system has migrated from Lucene 2.9.1 to Lucene 3.5. |
| This change brings improved performance and many bug fixes in help search. |
| Some old help system API related to Lucene has been changed or removed as part |
| of this fix. Refer to the platform 4.3 migration guide for more details. |
| </td> |
| </tr> |
| |
| |
| <tr> |
| <td colspan="2" class="section" id="JDT">JDT</td> |
| </tr> |
| <tr id="convert-if-else-to-switch"> |
| <td class="title">New 'Convert if-else to switch' quick assist</td> |
| <td class="content"> |
| The new <b>Convert 'if-else' to 'switch'</b> quick assist (<b>Ctrl+1</b>) allows you to convert an if-else statement to |
| an equivalent switch statement. |
| <p><img src="images/convert-if-else-to-switch.png" alt=""/></p> |
| |
| This quick assist is the reverse of the existing <b>Convert 'switch' to 'if-else'</b> quick assist. |
| </td> |
| </tr> |
| <tr id="tolerateIllegalAmbiguousVarargsInvocation"> |
| <td class="title">Force Eclipse to compile (illegal) ambiguous varargs code</td> |
| <td class="content"> JDK 6 and below had a bug and considered the code below legal. |
| However, this bug was fixed in JDK 7 and the code now reports an ambiguous invocation error at the call site for test(..). |
| Eclipse Juno followed and fixed this across all compliance levels. |
| <p><a href="images/illegal-ambiguous-varargs-error.txt"><img src="images/illegal-ambiguous-varargs-error.png" alt="follow link for source"/></a></p> |
| <p>If you still want the above code to compile in compliance < 1.7, to mimic JDK 6 or below, you can use the |
| system property <b>tolerateIllegalAmbiguousVarargsInvocation</b> to force Eclipse to tolerate such ambiguous varargs cases. |
| This property can e.g. be set in the eclipse.ini file after the -vmargs setting:</p> |
| <pre><code>... |
| -vmargs |
| -DtolerateIllegalAmbiguousVarargsInvocation=true |
| ...</code></pre> |
| <p><i>Note</i>: With this setting, Eclipse also mimics JDK 6 and below in raising an error in other cases that are legal in both JDK 7 and Eclipse:</p> |
| <p><a href="images/illegal-ambiguous-varargs-error2.txt"><img src="images/illegal-ambiguous-varargs-error2.png" alt="follow link for source"/></a></p> |
| |
| </td> |
| </tr> |
| <tr id="new-batch-compiler-options"> |
| <td class="title">New batch compiler options</td> |
| <td class="content"> If you use the ECJ batch compiler using the command line or Ant tasks, you can now configure the following options which previously could only be set through |
| the <b>Preferences > Java > Compiler > Errors/Warnings</b> page: |
| <ul> |
| <li>invalidJavadoc: set all warnings for malformed Javadoc tags</li> |
| <li>invalidJavadocTag: validate Javadoc tag arguments</li> |
| <li>invalidJavadocTagDep: validate deprecated references in Javadoc tag args</li> |
| <li>invalidJavadocTagNotVisible: validate non-visible references in Javadoc tag args</li> |
| <li>invalidJavadocVisibility(<visibility>): specify visibility modifier for malformed Javadoc tag warnings</li> |
| <li>missingJavadocTags: enable detection of missing Javadoc tags</li> |
| <li>missingJavadocTagsOverriding: detect missing Javadoc tags in overriding methods</li> |
| <li>missingJavadocTagsMethod: detect missing Javadoc tags for method type parameter</li> |
| <li>missingJavadocTagsVisibility(<visibility>): specify visibility modifier for missing Javadoc tags warnings</li> |
| <li>missingJavadocComments: detect missing Javadoc comments</li> |
| <li>missingJavadocCommentsOverriding: detect missing Javadoc tags in overriding methods</li> |
| <li>missingJavadocCommentsVisibility(<visibility>): specify visibility modifier for missing Javadoc comments warnings</li> |
| <li>nullAnnotConflict: detect conflict between null annotation specified and nullness inferred. Is effective only with nullAnnot option enabled</li> |
| <li>nullAnnotRedundant: detect redundant specification of null annotation. Is effective only with nullAnnot option enabled</li> |
| <li>nullUncheckedConversion: detect unchecked conversion from non-annotated type to @NonNull type. Is effective only with nullAnnot option enabled</li> |
| <li>unusedParam: detect unused parameter</li> |
| <li>unusedParamOverriding: detect unused parameter for overriding method</li> |
| <li>unusedParamImplementing: detect unused parameter for implementing method</li> |
| <li>unusedParamIncludeDoc: detect unused parameter documented in comment tag</li> |
| <li>unusedThrownWhenOverriding: detect unused declared thrown exception in overriding method</li> |
| <li>unusedThrownIncludeDocComment: detect unused declared thrown exception, documented in a comment tag</li> |
| <li>unusedThrownExemptExceptionThrowable: detect unused declared thrown exception, exempt Exception and Throwable</li> |
| </ul> |
| <p> For more information on using batch compiler options, please refer to <b>Help > Java Development User Guide > Tasks > Compiling Java Code > Using the batch compiler</b>.</p> |
| </td> |
| </tr> |
| <tr id="content-assist-TL_CONSTRUCTOR_START"> |
| <td class="title">New API to indicate content assist requested on the start of a constructor</td> |
| <td class="content"> |
| org.eclipse.jdt.core.CompletionContext.TL_CONSTRUCTOR_START: |
| <pre> |
| /** |
| * The completed token is the first token of a constructor |
| * invocation expression. |
| * e.g. |
| * |
| * public class X { |
| * public void bar() { |
| * new Foo| // completion occurs at | |
| * } |
| * } |
| */ |
| </pre> |
| </td> |
| </tr> |
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| <td colspan="2"> </td> |
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