我正在进入 Java7 开发,并且我已将 JDK7 添加到Java 平台并在项目属性中选择它。
但是当我编译时,我收到如下消息:
warning: java/lang/Boolean.class(java/lang:Boolean.class): major version 51 is newer than 50, the highest major version supported by this compiler.
It is recommended that the compiler be upgraded.
and
javac: invalid target release: 1.7
/Applications/NetBeans/NetBeans 7.1.app/Contents/Resources/NetBeans/harness/suite.xml:184: The following error occurred while executing this line:
/Applications/NetBeans/NetBeans 7.1.app/Contents/Resources/NetBeans/harness/common.xml:206: Compile failed; see the compiler error output for details.
据我了解 Netbeans 使用的是 javac 1.6。我怎样才能换成1.7呢?
EDIT:
我正在编写一个 NetBeans 平台应用程序,并在主应用程序属性中设置:Java平台 = JDK 1.7。在我设置的模块属性之一中源级别 = 1.7.
EDIT2
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Mac OS 10.7.3
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NetBeans 集成开发环境7.1(内部版本 201112071828)
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openjdk版本“1.7.0-内部”
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OpenJDK运行时环境(内部版本1.7.0-internal-uko_2012_02_15_11_51-b00)
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OpenJDK64 位服务器 VM(内部版本 23.0-b15,混合模式)
suite.xml(184是这里的第二行)
<target name="build" depends="-init,branding,release,-hide-excluded-modules" description="Build all modules in the suite.">
<subant target="netbeans" buildpath="${modules.sorted}" inheritrefs="false" inheritall="false">
<property name="cluster.path.evaluated" value="${cluster.path.evaluated}"/> <!-- Just for speed of pre-7.0 projects -->
</subant>
</target>
common.xml(206 是这里的第二行)
<nb-javac srcdir="${src.dir}" destdir="${build.classes.dir}" debug="${build.compiler.debug}" debuglevel="${build.compiler.debuglevel}" encoding="UTF-8"
deprecation="${build.compiler.deprecation}" optimize="${build.compiler.optimize}" source="${javac.source}" target="${javac.target}" includeantruntime="false">
<classpath refid="cp"/>
<compilerarg line="${javac.compilerargs}"/>
<processorpath refid="processor.cp"/>
</nb-javac>