Antlr 无法创建前瞻
Antlr failed to create lookahead
考虑到符号，我的语法并不是非常干净，因此我必须为其打开回溯
（我知道这不是最好的解决方案，但由于我的语法是由我编写的程序生成的，修复这些部分将花费我很多时间进行调试，但这不是这里的主题）。
然而，当我尝试通过 Mwe2 工作流程生成我的语法时，它给我这个错误消息：
error(10): internal error: org.antlr.tool.Grammar.createLookaheadDFA(Grammar.java:1279): could not even do k=1 for decision 92; reason: timed out (>100000ms)
正如我所读here这可能是因为 Antlr 只是需要更多时间来编译...
我的问题是，仅仅增加 Antlr 生成所需的时间是否就足够了（如果是的话，如何做到这一点）或者这是否可能有其他原因，例如创建过程中的无限循环或类似的东西......
注意：我的语法差不多有 3000 行长
提前致谢
乌鸦
编辑:
当将转换时间增加到 500 万毫秒时，上述错误消失了，但我最终还是遇到了一堆异常：
[ERROR]: GeneratorException: (Element: -UNKNOWN-; Reported by: Generator)
org.eclipse.emf.common.util.WrappedException: java.lang.reflect.InvocationTargetException
at org.eclipse.xtext.generator.parser.antlr.AntlrToolFacade.runWithEncodingAndParams(AntlrToolFacade.java:183)
at org.eclipse.xtext.generator.parser.antlr.XtextAntlrGeneratorFragment.generate(XtextAntlrGeneratorFragment.java:48)
at org.eclipse.xtext.generator.DefaultGeneratorFragment.generate(DefaultGeneratorFragment.java:167)
at org.eclipse.xtext.generator.CompositeGeneratorFragment.generate(CompositeGeneratorFragment.java:163)
at org.eclipse.xtext.generator.Generator.generate(Generator.java:555)
at org.eclipse.xtext.generator.Generator.invokeInternal(Generator.java:172)
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:78)
at org.eclipse.emf.mwe2.launch.runtime.Mwe2Launcher.main(Mwe2Launcher.java:36)
Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.eclipse.xtext.generator.parser.antlr.AntlrToolFacade.runWithEncodingAndParams(AntlrToolFacade.java:173)
... 15 more
Caused by: java.lang.OutOfMemoryError: GC overhead limit exceeded
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:613)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:756)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:683)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:756)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:683)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
[ERROR]: GeneratorException: (Element: -UNKNOWN-; Reported by: Generator)
org.eclipse.emf.common.util.WrappedException: java.lang.reflect.InvocationTargetException
at org.eclipse.xtext.generator.parser.antlr.AntlrToolFacade.runWithEncodingAndParams(AntlrToolFacade.java:183)
at org.eclipse.xtext.generator.parser.antlr.XtextAntlrUiGeneratorFragment.generate(XtextAntlrUiGeneratorFragment.java:110)
at org.eclipse.xtext.generator.DefaultGeneratorFragment.generate(DefaultGeneratorFragment.java:167)
at org.eclipse.xtext.generator.CompositeGeneratorFragment.generate(CompositeGeneratorFragment.java:163)
at org.eclipse.xtext.generator.Generator.generate(Generator.java:555)
at org.eclipse.xtext.generator.Generator.invokeInternal(Generator.java:172)
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:78)
at org.eclipse.emf.mwe2.launch.runtime.Mwe2Launcher.main(Mwe2Launcher.java:36)
Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.eclipse.xtext.generator.parser.antlr.AntlrToolFacade.runWithEncodingAndParams(AntlrToolFacade.java:173)
... 15 more
Caused by: java.lang.OutOfMemoryError: GC overhead limit exceeded
at java.util.HashMap.newNode(Unknown Source)
at java.util.HashMap.putVal(Unknown Source)
at java.util.HashMap.put(Unknown Source)
at java.util.HashSet.add(Unknown Source)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:630)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:683)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:683)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:683)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:683)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:683)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:683)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:756)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
java.lang.RuntimeException: Problems running workflow raven.GenerateSQF:
[ERROR]: GeneratorException: (Element: -UNKNOWN-; Reported by: Generator)
org.eclipse.emf.common.util.WrappedException: java.lang.reflect.InvocationTargetException
at org.eclipse.xtext.generator.parser.antlr.AntlrToolFacade.runWithEncodingAndParams(AntlrToolFacade.java:183)
at org.eclipse.xtext.generator.parser.antlr.XtextAntlrGeneratorFragment.generate(XtextAntlrGeneratorFragment.java:48)
at org.eclipse.xtext.generator.DefaultGeneratorFragment.generate(DefaultGeneratorFragment.java:167)
at org.eclipse.xtext.generator.CompositeGeneratorFragment.generate(CompositeGeneratorFragment.java:163)
at org.eclipse.xtext.generator.Generator.generate(Generator.java:555)
at org.eclipse.xtext.generator.Generator.invokeInternal(Generator.java:172)
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:78)
at org.eclipse.emf.mwe2.launch.runtime.Mwe2Launcher.main(Mwe2Launcher.java:36)
Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.eclipse.xtext.generator.parser.antlr.AntlrToolFacade.runWithEncodingAndParams(AntlrToolFacade.java:173)
... 15 more
Caused by: java.lang.OutOfMemoryError: GC overhead limit exceeded
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:613)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:756)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:683)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:756)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:683)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
[ERROR]: GeneratorException: (Element: -UNKNOWN-; Reported by: Generator)
org.eclipse.emf.common.util.WrappedException: java.lang.reflect.InvocationTargetException
at org.eclipse.xtext.generator.parser.antlr.AntlrToolFacade.runWithEncodingAndParams(AntlrToolFacade.java:183)
at org.eclipse.xtext.generator.parser.antlr.XtextAntlrUiGeneratorFragment.generate(XtextAntlrUiGeneratorFragment.java:110)
at org.eclipse.xtext.generator.DefaultGeneratorFragment.generate(DefaultGeneratorFragment.java:167)
at org.eclipse.xtext.generator.CompositeGeneratorFragment.generate(CompositeGeneratorFragment.java:163)
at org.eclipse.xtext.generator.Generator.generate(Generator.java:555)
at org.eclipse.xtext.generator.Generator.invokeInternal(Generator.java:172)
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:78)
at org.eclipse.emf.mwe2.launch.runtime.Mwe2Launcher.main(Mwe2Launcher.java:36)
Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.eclipse.xtext.generator.parser.antlr.AntlrToolFacade.runWithEncodingAndParams(AntlrToolFacade.java:173)
... 15 more
Caused by: java.lang.OutOfMemoryError: GC overhead limit exceeded
at java.util.HashMap.newNode(Unknown Source)
at java.util.HashMap.putVal(Unknown Source)
at java.util.HashMap.put(Unknown Source)
at java.util.HashSet.add(Unknown Source)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:630)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:683)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:683)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:683)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:683)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:683)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:683)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:756)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
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:78)
at org.eclipse.emf.mwe2.launch.runtime.Mwe2Launcher.main(Mwe2Launcher.java:36)
Caused by: java.lang.RuntimeException:
[ERROR]: GeneratorException: (Element: -UNKNOWN-; Reported by: Generator)
org.eclipse.emf.common.util.WrappedException: java.lang.reflect.InvocationTargetException
at org.eclipse.xtext.generator.parser.antlr.AntlrToolFacade.runWithEncodingAndParams(AntlrToolFacade.java:183)
at org.eclipse.xtext.generator.parser.antlr.XtextAntlrGeneratorFragment.generate(XtextAntlrGeneratorFragment.java:48)
at org.eclipse.xtext.generator.DefaultGeneratorFragment.generate(DefaultGeneratorFragment.java:167)
at org.eclipse.xtext.generator.CompositeGeneratorFragment.generate(CompositeGeneratorFragment.java:163)
at org.eclipse.xtext.generator.Generator.generate(Generator.java:555)
at org.eclipse.xtext.generator.Generator.invokeInternal(Generator.java:172)
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:78)
at org.eclipse.emf.mwe2.launch.runtime.Mwe2Launcher.main(Mwe2Launcher.java:36)
Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.eclipse.xtext.generator.parser.antlr.AntlrToolFacade.runWithEncodingAndParams(AntlrToolFacade.java:173)
... 15 more
Caused by: java.lang.OutOfMemoryError: GC overhead limit exceeded
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:613)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:756)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:683)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:756)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:683)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
[ERROR]: GeneratorException: (Element: -UNKNOWN-; Reported by: Generator)
org.eclipse.emf.common.util.WrappedException: java.lang.reflect.InvocationTargetException
at org.eclipse.xtext.generator.parser.antlr.AntlrToolFacade.runWithEncodingAndParams(AntlrToolFacade.java:183)
at org.eclipse.xtext.generator.parser.antlr.XtextAntlrUiGeneratorFragment.generate(XtextAntlrUiGeneratorFragment.java:110)
at org.eclipse.xtext.generator.DefaultGeneratorFragment.generate(DefaultGeneratorFragment.java:167)
at org.eclipse.xtext.generator.CompositeGeneratorFragment.generate(CompositeGeneratorFragment.java:163)
at org.eclipse.xtext.generator.Generator.generate(Generator.java:555)
at org.eclipse.xtext.generator.Generator.invokeInternal(Generator.java:172)
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:78)
at org.eclipse.emf.mwe2.launch.runtime.Mwe2Launcher.main(Mwe2Launcher.java:36)
如果您想增加转换超时，您需要使用此选项：
fragment = parser.antlr.XtextAntlrUiGeneratorFragment auto-inject {
antlrParam = "-Xconversiontimeout" antlrParam = "30000"
}
fragment = parser.antlr.XtextAntlrGeneratorFragment auto-inject {
antlrParam = "-Xconversiontimeout" antlrParam = "30000"
}
考虑到符号，我的语法并不是非常干净，因此我必须为其打开回溯
（我知道这不是最好的解决方案，但由于我的语法是由我编写的程序生成的，修复这些部分将花费我很多时间进行调试，但这不是这里的主题）。
然而，当我尝试通过 Mwe2 工作流程生成我的语法时，它给我这个错误消息：
error(10): internal error: org.antlr.tool.Grammar.createLookaheadDFA(Grammar.java:1279): could not even do k=1 for decision 92; reason: timed out (>100000ms)
正如我所读here这可能是因为 Antlr 只是需要更多时间来编译...
我的问题是，仅仅增加 Antlr 生成所需的时间是否就足够了（如果是的话，如何做到这一点）或者这是否可能有其他原因，例如创建过程中的无限循环或类似的东西......
注意：我的语法差不多有 3000 行长
提前致谢
乌鸦
编辑:
当将转换时间增加到 500 万毫秒时，上述错误消失了，但我最终还是遇到了一堆异常：
[ERROR]: GeneratorException: (Element: -UNKNOWN-; Reported by: Generator)
org.eclipse.emf.common.util.WrappedException: java.lang.reflect.InvocationTargetException
at org.eclipse.xtext.generator.parser.antlr.AntlrToolFacade.runWithEncodingAndParams(AntlrToolFacade.java:183)
at org.eclipse.xtext.generator.parser.antlr.XtextAntlrGeneratorFragment.generate(XtextAntlrGeneratorFragment.java:48)
at org.eclipse.xtext.generator.DefaultGeneratorFragment.generate(DefaultGeneratorFragment.java:167)
at org.eclipse.xtext.generator.CompositeGeneratorFragment.generate(CompositeGeneratorFragment.java:163)
at org.eclipse.xtext.generator.Generator.generate(Generator.java:555)
at org.eclipse.xtext.generator.Generator.invokeInternal(Generator.java:172)
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:78)
at org.eclipse.emf.mwe2.launch.runtime.Mwe2Launcher.main(Mwe2Launcher.java:36)
Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.eclipse.xtext.generator.parser.antlr.AntlrToolFacade.runWithEncodingAndParams(AntlrToolFacade.java:173)
... 15 more
Caused by: java.lang.OutOfMemoryError: GC overhead limit exceeded
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:613)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:756)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:683)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:756)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:683)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
[ERROR]: GeneratorException: (Element: -UNKNOWN-; Reported by: Generator)
org.eclipse.emf.common.util.WrappedException: java.lang.reflect.InvocationTargetException
at org.eclipse.xtext.generator.parser.antlr.AntlrToolFacade.runWithEncodingAndParams(AntlrToolFacade.java:183)
at org.eclipse.xtext.generator.parser.antlr.XtextAntlrUiGeneratorFragment.generate(XtextAntlrUiGeneratorFragment.java:110)
at org.eclipse.xtext.generator.DefaultGeneratorFragment.generate(DefaultGeneratorFragment.java:167)
at org.eclipse.xtext.generator.CompositeGeneratorFragment.generate(CompositeGeneratorFragment.java:163)
at org.eclipse.xtext.generator.Generator.generate(Generator.java:555)
at org.eclipse.xtext.generator.Generator.invokeInternal(Generator.java:172)
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:78)
at org.eclipse.emf.mwe2.launch.runtime.Mwe2Launcher.main(Mwe2Launcher.java:36)
Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.eclipse.xtext.generator.parser.antlr.AntlrToolFacade.runWithEncodingAndParams(AntlrToolFacade.java:173)
... 15 more
Caused by: java.lang.OutOfMemoryError: GC overhead limit exceeded
at java.util.HashMap.newNode(Unknown Source)
at java.util.HashMap.putVal(Unknown Source)
at java.util.HashMap.put(Unknown Source)
at java.util.HashSet.add(Unknown Source)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:630)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:683)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:683)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:683)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:683)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:683)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:683)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:756)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
java.lang.RuntimeException: Problems running workflow raven.GenerateSQF:
[ERROR]: GeneratorException: (Element: -UNKNOWN-; Reported by: Generator)
org.eclipse.emf.common.util.WrappedException: java.lang.reflect.InvocationTargetException
at org.eclipse.xtext.generator.parser.antlr.AntlrToolFacade.runWithEncodingAndParams(AntlrToolFacade.java:183)
at org.eclipse.xtext.generator.parser.antlr.XtextAntlrGeneratorFragment.generate(XtextAntlrGeneratorFragment.java:48)
at org.eclipse.xtext.generator.DefaultGeneratorFragment.generate(DefaultGeneratorFragment.java:167)
at org.eclipse.xtext.generator.CompositeGeneratorFragment.generate(CompositeGeneratorFragment.java:163)
at org.eclipse.xtext.generator.Generator.generate(Generator.java:555)
at org.eclipse.xtext.generator.Generator.invokeInternal(Generator.java:172)
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:78)
at org.eclipse.emf.mwe2.launch.runtime.Mwe2Launcher.main(Mwe2Launcher.java:36)
Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.eclipse.xtext.generator.parser.antlr.AntlrToolFacade.runWithEncodingAndParams(AntlrToolFacade.java:173)
... 15 more
Caused by: java.lang.OutOfMemoryError: GC overhead limit exceeded
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:613)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:756)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:683)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:756)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:683)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
[ERROR]: GeneratorException: (Element: -UNKNOWN-; Reported by: Generator)
org.eclipse.emf.common.util.WrappedException: java.lang.reflect.InvocationTargetException
at org.eclipse.xtext.generator.parser.antlr.AntlrToolFacade.runWithEncodingAndParams(AntlrToolFacade.java:183)
at org.eclipse.xtext.generator.parser.antlr.XtextAntlrUiGeneratorFragment.generate(XtextAntlrUiGeneratorFragment.java:110)
at org.eclipse.xtext.generator.DefaultGeneratorFragment.generate(DefaultGeneratorFragment.java:167)
at org.eclipse.xtext.generator.CompositeGeneratorFragment.generate(CompositeGeneratorFragment.java:163)
at org.eclipse.xtext.generator.Generator.generate(Generator.java:555)
at org.eclipse.xtext.generator.Generator.invokeInternal(Generator.java:172)
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:78)
at org.eclipse.emf.mwe2.launch.runtime.Mwe2Launcher.main(Mwe2Launcher.java:36)
Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.eclipse.xtext.generator.parser.antlr.AntlrToolFacade.runWithEncodingAndParams(AntlrToolFacade.java:173)
... 15 more
Caused by: java.lang.OutOfMemoryError: GC overhead limit exceeded
at java.util.HashMap.newNode(Unknown Source)
at java.util.HashMap.putVal(Unknown Source)
at java.util.HashMap.put(Unknown Source)
at java.util.HashSet.add(Unknown Source)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:630)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:683)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:683)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:683)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:683)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:683)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:683)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:756)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
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:78)
at org.eclipse.emf.mwe2.launch.runtime.Mwe2Launcher.main(Mwe2Launcher.java:36)
Caused by: java.lang.RuntimeException:
[ERROR]: GeneratorException: (Element: -UNKNOWN-; Reported by: Generator)
org.eclipse.emf.common.util.WrappedException: java.lang.reflect.InvocationTargetException
at org.eclipse.xtext.generator.parser.antlr.AntlrToolFacade.runWithEncodingAndParams(AntlrToolFacade.java:183)
at org.eclipse.xtext.generator.parser.antlr.XtextAntlrGeneratorFragment.generate(XtextAntlrGeneratorFragment.java:48)
at org.eclipse.xtext.generator.DefaultGeneratorFragment.generate(DefaultGeneratorFragment.java:167)
at org.eclipse.xtext.generator.CompositeGeneratorFragment.generate(CompositeGeneratorFragment.java:163)
at org.eclipse.xtext.generator.Generator.generate(Generator.java:555)
at org.eclipse.xtext.generator.Generator.invokeInternal(Generator.java:172)
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:78)
at org.eclipse.emf.mwe2.launch.runtime.Mwe2Launcher.main(Mwe2Launcher.java:36)
Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.eclipse.xtext.generator.parser.antlr.AntlrToolFacade.runWithEncodingAndParams(AntlrToolFacade.java:173)
... 15 more
Caused by: java.lang.OutOfMemoryError: GC overhead limit exceeded
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:613)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:756)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:683)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:756)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:683)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:765)
[ERROR]: GeneratorException: (Element: -UNKNOWN-; Reported by: Generator)
org.eclipse.emf.common.util.WrappedException: java.lang.reflect.InvocationTargetException
at org.eclipse.xtext.generator.parser.antlr.AntlrToolFacade.runWithEncodingAndParams(AntlrToolFacade.java:183)
at org.eclipse.xtext.generator.parser.antlr.XtextAntlrUiGeneratorFragment.generate(XtextAntlrUiGeneratorFragment.java:110)
at org.eclipse.xtext.generator.DefaultGeneratorFragment.generate(DefaultGeneratorFragment.java:167)
at org.eclipse.xtext.generator.CompositeGeneratorFragment.generate(CompositeGeneratorFragment.java:163)
at org.eclipse.xtext.generator.Generator.generate(Generator.java:555)
at org.eclipse.xtext.generator.Generator.invokeInternal(Generator.java:172)
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:78)
at org.eclipse.emf.mwe2.launch.runtime.Mwe2Launcher.main(Mwe2Launcher.java:36)
如果您想增加转换超时，您需要使用此选项：
fragment = parser.antlr.XtextAntlrUiGeneratorFragment auto-inject {
antlrParam = "-Xconversiontimeout" antlrParam = "30000"
}
fragment = parser.antlr.XtextAntlrGeneratorFragment auto-inject {
antlrParam = "-Xconversiontimeout" antlrParam = "30000"
}