xtext mwe2工作流在生成器上崩溃

pxiryf3j  于 2021-06-29  发布在  Java
关注(0)|答案(1)|浏览(408)

我目前正在为一个遗留项目创建一个maven构建，并尝试在maven构建中编译xtext语言，如下所述。我可以运行构建，但一旦maven启动xtext mwe2工作流，工作流中就会出现以下问题：

[ERROR]: GeneratorException: (Element: -UNKNOWN-; Reported by: Generator)
         org.eclipse.internal.xtend.xtend.parser.ParseException: extraneous input '-' expecting TEXT on line 289
        at org.eclipse.internal.xpand2.parser.XpandParseFacade$3.handleError(XpandParseFacade.java:74)
        at org.eclipse.internal.xpand2.parser.XpandParseFacade$2.reportError(XpandParseFacade.java:63)
        at org.antlr.runtime.BaseRecognizer.recoverFromMismatchedToken(BaseRecognizer.java:596)
        at org.antlr.runtime.BaseRecognizer.match(BaseRecognizer.java:115)
        at org.eclipse.internal.xpand2.parser.XpandParser.template(XpandParser.java:489)
        at org.eclipse.internal.xpand2.parser.XpandParseFacade.file(XpandParseFacade.java:40)
        at org.eclipse.internal.xpand2.parser.XpandParseFacade.file(XpandParseFacade.java:27)
        at org.eclipse.xpand2.XpandExecutionContextImpl$1.parse(XpandExecutionContextImpl.java:174)
        at org.eclipse.xtend.expression.ResourceManagerDefaultImpl.loadResource(ResourceManagerDefaultImpl.java:70)
        at org.eclipse.xpand2.XpandExecutionContextImpl.findTemplate(XpandExecutionContextImpl.java:286)
        at org.eclipse.xpand2.XpandExecutionContextImpl.findTemplate(XpandExecutionContextImpl.java:281)
        at org.eclipse.xpand2.XpandExecutionContextImpl.findDefinition(XpandExecutionContextImpl.java:233)
        at org.eclipse.internal.xpand2.ast.ExpandStatement.invokeDefinition(ExpandStatement.java:236)
        at org.eclipse.internal.xpand2.ast.ExpandStatement.evaluateInternal(ExpandStatement.java:228)
        at org.eclipse.internal.xpand2.ast.Statement.evaluate(Statement.java:41)
        at org.eclipse.internal.xpand2.ast.AbstractDefinition.evaluate(AbstractDefinition.java:176)
        at org.eclipse.xpand2.XpandFacade.evaluate2(XpandFacade.java:62)
        at org.eclipse.xtext.generator.AbstractGeneratorFragment.generate(AbstractGeneratorFragment.java:42)
        at org.eclipse.xtext.generator.parser.antlr.AbstractAntlrGeneratorFragment.generate(AbstractAntlrGeneratorFragment.java:98)
        at org.eclipse.xtext.generator.parser.antlr.XtextAntlrGeneratorFragment.generate(XtextAntlrGeneratorFragment.java:41)
        at org.eclipse.xtext.generator.DefaultGeneratorFragment.generate(DefaultGeneratorFragment.java:122)
        at org.eclipse.xtext.generator.CompositeGeneratorFragment.generate(CompositeGeneratorFragment.java:154)
        at org.eclipse.xtext.generator.Generator.generate(Generator.java:396)
        at org.eclipse.xtext.generator.Generator.invokeInternal(Generator.java:138)
        at org.eclipse.emf.mwe.core.lib.AbstractWorkflowComponent.invoke(AbstractWorkflowComponent.java:126)
        at org.eclipse.emf.mwe.core.lib.Mwe2Bridge.invoke(Mwe2Bridge.java:34)
        at org.eclipse.emf.mwe.core.lib.AbstractWorkflowComponent.invoke(AbstractWorkflowComponent.java:201)
        at org.eclipse.emf.mwe2.runtime.workflow.AbstractCompositeWorkflowComponent.invoke(AbstractCompositeWorkflowComponent.java:35)
        at org.eclipse.emf.mwe2.runtime.workflow.Workflow.run(Workflow.java:19)
        at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:102)
        at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:62)
        at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:52)
        at org.eclipse.emf.mwe2.launch.runtime.Mwe2Launcher.run(Mwe2Launcher.java:74)
        at org.eclipse.emf.mwe2.launch.runtime.Mwe2Launcher.main(Mwe2Launcher.java:35)
        at org.codehaus.mojo.exec.ExecJavaMojo$1.run(ExecJavaMojo.java:254)
        at java.lang.Thread.run(Thread.java:748)

java.lang.RuntimeException: Problems running workflow at.jku.mevss.cdsl.GenerateConstraintDSL:
[ERROR]: GeneratorException: (Element: -UNKNOWN-; Reported by: Generator)
         org.eclipse.internal.xtend.xtend.parser.ParseException: extraneous input '-' expecting TEXT on line 289
        at org.eclipse.internal.xpand2.parser.XpandParseFacade$3.handleError(XpandParseFacade.java:74)
        at org.eclipse.internal.xpand2.parser.XpandParseFacade$2.reportError(XpandParseFacade.java:63)
        at org.antlr.runtime.BaseRecognizer.recoverFromMismatchedToken(BaseRecognizer.java:596)
        at org.antlr.runtime.BaseRecognizer.match(BaseRecognizer.java:115)
        at org.eclipse.internal.xpand2.parser.XpandParser.template(XpandParser.java:489)
        at org.eclipse.internal.xpand2.parser.XpandParseFacade.file(XpandParseFacade.java:40)
        at org.eclipse.internal.xpand2.parser.XpandParseFacade.file(XpandParseFacade.java:27)
        at org.eclipse.xpand2.XpandExecutionContextImpl$1.parse(XpandExecutionContextImpl.java:174)
        at org.eclipse.xtend.expression.ResourceManagerDefaultImpl.loadResource(ResourceManagerDefaultImpl.java:70)
        at org.eclipse.xpand2.XpandExecutionContextImpl.findTemplate(XpandExecutionContextImpl.java:286)
        at org.eclipse.xpand2.XpandExecutionContextImpl.findTemplate(XpandExecutionContextImpl.java:281)
        at org.eclipse.xpand2.XpandExecutionContextImpl.findDefinition(XpandExecutionContextImpl.java:233)
        at org.eclipse.internal.xpand2.ast.ExpandStatement.invokeDefinition(ExpandStatement.java:236)
        at org.eclipse.internal.xpand2.ast.ExpandStatement.evaluateInternal(ExpandStatement.java:228)
        at org.eclipse.internal.xpand2.ast.Statement.evaluate(Statement.java:41)
        at org.eclipse.internal.xpand2.ast.AbstractDefinition.evaluate(AbstractDefinition.java:176)
        at org.eclipse.xpand2.XpandFacade.evaluate2(XpandFacade.java:62)
        at org.eclipse.xtext.generator.AbstractGeneratorFragment.generate(AbstractGeneratorFragment.java:42)
        at org.eclipse.xtext.generator.parser.antlr.AbstractAntlrGeneratorFragment.generate(AbstractAntlrGeneratorFragment.java:98)
        at org.eclipse.xtext.generator.parser.antlr.XtextAntlrGeneratorFragment.generate(XtextAntlrGeneratorFragment.java:41)
        at org.eclipse.xtext.generator.DefaultGeneratorFragment.generate(DefaultGeneratorFragment.java:122)
        at org.eclipse.xtext.generator.CompositeGeneratorFragment.generate(CompositeGeneratorFragment.java:154)
        at org.eclipse.xtext.generator.Generator.generate(Generator.java:396)
        at org.eclipse.xtext.generator.Generator.invokeInternal(Generator.java:138)
        at org.eclipse.emf.mwe.core.lib.AbstractWorkflowComponent.invoke(AbstractWorkflowComponent.java:126)
        at org.eclipse.emf.mwe.core.lib.Mwe2Bridge.invoke(Mwe2Bridge.java:34)
        at org.eclipse.emf.mwe.core.lib.AbstractWorkflowComponent.invoke(AbstractWorkflowComponent.java:201)
        at org.eclipse.emf.mwe2.runtime.workflow.AbstractCompositeWorkflowComponent.invoke(AbstractCompositeWorkflowComponent.java:35)
        at org.eclipse.emf.mwe2.runtime.workflow.Workflow.run(Workflow.java:19)
        at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:102)
        at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:62)
        at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:52)
        at org.eclipse.emf.mwe2.launch.runtime.Mwe2Launcher.run(Mwe2Launcher.java:74)
        at org.eclipse.emf.mwe2.launch.runtime.Mwe2Launcher.main(Mwe2Launcher.java:35)
        at org.codehaus.mojo.exec.ExecJavaMojo$1.run(ExecJavaMojo.java:254)
        at java.lang.Thread.run(Thread.java:748)

        at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:104)
        at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:62)
        at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:52)
        at org.eclipse.emf.mwe2.launch.runtime.Mwe2Launcher.run(Mwe2Launcher.java:74)
        at org.eclipse.emf.mwe2.launch.runtime.Mwe2Launcher.main(Mwe2Launcher.java:35)
        at org.codehaus.mojo.exec.ExecJavaMojo$1.run(ExecJavaMojo.java:254)
        at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.RuntimeException:
[ERROR]: GeneratorException: (Element: -UNKNOWN-; Reported by: Generator)
         org.eclipse.internal.xtend.xtend.parser.ParseException: extraneous input '-' expecting TEXT on line 289
        at org.eclipse.internal.xpand2.parser.XpandParseFacade$3.handleError(XpandParseFacade.java:74)
        at org.eclipse.internal.xpand2.parser.XpandParseFacade$2.reportError(XpandParseFacade.java:63)
        at org.antlr.runtime.BaseRecognizer.recoverFromMismatchedToken(BaseRecognizer.java:596)
        at org.antlr.runtime.BaseRecognizer.match(BaseRecognizer.java:115)
        at org.eclipse.internal.xpand2.parser.XpandParser.template(XpandParser.java:489)
        at org.eclipse.internal.xpand2.parser.XpandParseFacade.file(XpandParseFacade.java:40)
        at org.eclipse.internal.xpand2.parser.XpandParseFacade.file(XpandParseFacade.java:27)
        at org.eclipse.xpand2.XpandExecutionContextImpl$1.parse(XpandExecutionContextImpl.java:174)
        at org.eclipse.xtend.expression.ResourceManagerDefaultImpl.loadResource(ResourceManagerDefaultImpl.java:70)
        at org.eclipse.xpand2.XpandExecutionContextImpl.findTemplate(XpandExecutionContextImpl.java:286)
        at org.eclipse.xpand2.XpandExecutionContextImpl.findTemplate(XpandExecutionContextImpl.java:281)
        at org.eclipse.xpand2.XpandExecutionContextImpl.findDefinition(XpandExecutionContextImpl.java:233)
        at org.eclipse.internal.xpand2.ast.ExpandStatement.invokeDefinition(ExpandStatement.java:236)
        at org.eclipse.internal.xpand2.ast.ExpandStatement.evaluateInternal(ExpandStatement.java:228)
        at org.eclipse.internal.xpand2.ast.Statement.evaluate(Statement.java:41)
        at org.eclipse.internal.xpand2.ast.AbstractDefinition.evaluate(AbstractDefinition.java:176)
        at org.eclipse.xpand2.XpandFacade.evaluate2(XpandFacade.java:62)
        at org.eclipse.xtext.generator.AbstractGeneratorFragment.generate(AbstractGeneratorFragment.java:42)
        at org.eclipse.xtext.generator.parser.antlr.AbstractAntlrGeneratorFragment.generate(AbstractAntlrGeneratorFragment.java:98)
        at org.eclipse.xtext.generator.parser.antlr.XtextAntlrGeneratorFragment.generate(XtextAntlrGeneratorFragment.java:41)
        at org.eclipse.xtext.generator.DefaultGeneratorFragment.generate(DefaultGeneratorFragment.java:122)
        at org.eclipse.xtext.generator.CompositeGeneratorFragment.generate(CompositeGeneratorFragment.java:154)
        at org.eclipse.xtext.generator.Generator.generate(Generator.java:396)
        at org.eclipse.xtext.generator.Generator.invokeInternal(Generator.java:138)
        at org.eclipse.emf.mwe.core.lib.AbstractWorkflowComponent.invoke(AbstractWorkflowComponent.java:126)
        at org.eclipse.emf.mwe.core.lib.Mwe2Bridge.invoke(Mwe2Bridge.java:34)
        at org.eclipse.emf.mwe.core.lib.AbstractWorkflowComponent.invoke(AbstractWorkflowComponent.java:201)
        at org.eclipse.emf.mwe2.runtime.workflow.AbstractCompositeWorkflowComponent.invoke(AbstractCompositeWorkflowComponent.java:35)
        at org.eclipse.emf.mwe2.runtime.workflow.Workflow.run(Workflow.java:19)
        at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:102)
        at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:62)
        at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:52)
        at org.eclipse.emf.mwe2.launch.runtime.Mwe2Launcher.run(Mwe2Launcher.java:74)
        at org.eclipse.emf.mwe2.launch.runtime.Mwe2Launcher.main(Mwe2Launcher.java:35)
        at org.codehaus.mojo.exec.ExecJavaMojo$1.run(ExecJavaMojo.java:254)
        at java.lang.Thread.run(Thread.java:748)

        at org.eclipse.emf.mwe.core.lib.Mwe2Bridge.handleIssues(Mwe2Bridge.java:56)
        at org.eclipse.emf.mwe.core.lib.Mwe2Bridge.invoke(Mwe2Bridge.java:48)
        at org.eclipse.emf.mwe.core.lib.AbstractWorkflowComponent.invoke(AbstractWorkflowComponent.java:201)
        at org.eclipse.emf.mwe2.runtime.workflow.AbstractCompositeWorkflowComponent.invoke(AbstractCompositeWorkflowComponent.java:35)
        at org.eclipse.emf.mwe2.runtime.workflow.Workflow.run(Workflow.java:19)
        at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:102)
        ... 6 more

我已经搜索了一点，试图找到一种方法，使发电机更详细，但找不到任何东西。不幸的是，我无法从错误消息中真正找到错误的来源，因为它说导致问题的元素是未知的。
我还用该语言手动检查了.xtext文件中是否有任何松散的“-”符号，但找不到。关于如何调试这个问题有什么线索吗？我甚至不知道从哪里开始挖掘。

JavaMavenxtextmwe

1条答案

按热度按时间
jum4pzuy

jum4pzuy1#

根据您的意见，无法提供有关该项目的更多信息。相反，你正在寻找一种可能性，进一步调查根本原因是什么。
我建议使用 mvnDebug . 此命令随maven一起提供，允许您调试maven插件的执行。要正确设置它，您需要一个带有插件源代码的eclipse（或任何ide）。我猜，你用的是 xtext-maven-plugin 如链接所示。为了获得源代码，我找到的最简单的方法是使用插件作为依赖项来设置一个新的maven项目。确保版本相同，否则调试会产生有趣的结果。

<dependency>
    <groupId>org.eclipse.xtext</groupId>
    <artifactId>xtext-maven-plugin</artifactId>
    <version>${xtext-version}</version>
</dependency>

在要调查的类中设置断点（例如。g。 org.eclipse.internal.xpand2.parser.XpandParser.template(XpandParser.java:489) )然后你用

mvnDebug verify

（或任何你使用的目标）而不是

mvn verify

然后，maven将等待远程调试器附加到其进程。在eclipse中，您将创建一个类型为的新调试配置 Remote Java Application 并通过调试按钮启动。

在那里，您可以使用标准调试技术来查看错误发生的位置。

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