Grails 2.1.1 要求在每个 'grails run-app' 之前 'grails clean' -- 仅限命令行

Question

我刚刚继承了一个现有的应用程序，我注意到的第一件事是，我必须在每个"grails run app"之前进行"grails clean"，否则就会出现错误。创建该项目的人员表示，他们还有其他几个具有类似设置的项目没有出现此错误，并且无法跟踪该特定项目的此问题。

详细信息：

从命令行，我第一次运行它时，得到的输出是：

grails运行应用

编译192个源文件

并且它继续运行良好。如果我控制C并运行完全相同的命令(没有更改，什么都没有)，我会得到：

|编译4个源文件。|错误编译错误：启动失败：类生成过程中的一般错误：对象不是的实例声明类

java.lang.IollegalArgumentException：对象不是的实例在声明类位于的sun.reflect.NativeMethodAccessorImpl.invoke0(本机方法)sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)在sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)在java.lang.reflect.Method.ioke(Method.java:606)com.springsource.loaded.ri.ReflectiveInterceptor.jlrMethodInvoke(ReflectiveInterceptor.java:1231)在org.codehaus.groovy.vmplugin.v5.Java5.configureAnnotation(Java5.java:242)在org.codehaus.groovy.vmplugin.v5.Java5.setAnnotationMetaData(Java5.java:179)在org.codehaus.groovy.vmplugin.v5.Java5.configureClassNode(Java5.java:325)在org.codehaus.groovy.ast.ClassNode.lazClassInit(ClassNode.java:262)在org.codehaus.groovy.ast.ClassNode.getInterfaces(ClassNode.java:356)在org.codehaus.groovy.ast.ClassNode.declaresInterface(ClassNode.java:946)在org.codehaus.groovy.ast.ClassNode.eimplementsInterface(ClassNode.java:926)在org.codehaus.groovy.ast.ClassNode.isDerivedFromGroovyObject(ClassNode.java:916)在org.codehaus.groovy.classgen.AsmClassGenerator.isGroovyObject(AsmClassGenerator.java:1090)在org.codehaus.groovy.classgen.AsmClassGenerator.visitPropertyExpression(AsmClassGenerator.java:1047)在org.codehaus.groovy.ast.expr.PropertyExpression.visit(PropertyExpression.java:55)在org.codehaus.groovy.classgen.AsmClassGenerator.visitGStringExpression(AsmClassGenerator.java：1855)在org.codehaus.groovy.ast.expr.GStringExpression.visit(GStringExpression.java:50)在org.codehaus.groovy.classgen.AsmClassGenerator.visitMapExpression(AsmClassGenerator.java:1444)在org.codehaus.groovy.ast.expr.MapExpression.visit(MapExpression.java:53)在org.codehaus.groovy.classgen.AsmClassGenerator.visitMapExpression(AsmClassGenerator.java:1444)在org.codehaus.groovy.ast.expr.MapExpression.visit(MapExpression.java:53)在org.codehaus.groovy.classgen.asm.CallSiteWriter.makeCallSite(CallSiteWriter.java:301)在org.codehaus.groovy.classgen.asm.InvocationWriter.makeCall(InvocationWriter.java:187)在org.codehaus.groovy.classgen.asm.InvocationWriter.makeCall(InvocationWriter.java:89)在org.codehaus.groovy.classgen.asm.InvocationWriter.makeInvokeMethodCall(InvocationWriter.java:73)在org.codehaus.groovy.classgen.asm.InvocationWriter.writeInvokeMethod(InvocationWriter.java:292)在org.codehaus.groovy.classgen.AsmClassGenerator.visitMethodCallExpression(AsmClassGenerator.java:655)在org.codehaus.groovy.ast.expr.MethodCallExpression.visit(MethodCallExpression.java:75)在org.codehaus.groovy.classgen.asm.BinaryExpressionHelper.evaluatteEqual(BinaryExpressionHelper.java:296)在org.codehaus.groovy.classgen.asm.BinaryExpressionHelper.eval(BinaryExpressionHelper.java:79)在org.codehaus.groovy.classgen.AsmClassGenerator.visitBinaryExpression(AsmClassGenerator.java:519)在org.codehaus.groovy.ast.expr.BinaryExpression.visit(BinaryExpression.java:49)在org.codehaus.groovy.classgen.asm.StatementWriter.writeExpressionStatement(StatementWriter.java:599)在org.codehaus.groovy.classgen.asm.OptizingStatementWriter.writeExpressionStatement(OptimizingStatementWriter.java:346)在org.codehaus.groovy.classgen.AsmClassGenerator.visitExpressionStatement(AsmClassGenerator.java:501)在org.codehaus.groovy.ast.stmt.ExpressionStatement.visite(ExpressionStatements.java:40)在org.codehaus.groovy.classgen.asm.StatementWriter.writeBlockStatement(StatementWriter.java:80)在org.codehaus.groovy.classgen.asm.OptizingStatementWriter.writeBlockStatement(OptimizingStatementWriter.java:155)在org.codehaus.groovy.classgen.AsmClassGenerator.visitBlockStatement(AsmClassGenerator.java:447)在org.codehaus.groovy.ast.stmt.BlockStatement.visite(BlockStatement.java:69)在org.codehaus.groovy.ast.ClassCodeVisitorSupport.visitClassCodeContainer(ClassCodeVisitorSupport.java:101)在org.codehaus.groovy.ast.ClassCodeVisitorSupport.visitConstructorOrMethod(ClassCodeVisitorSupport.java:112)在org.codehaus.groovy.classgen.AsmClassGenerator.visitStdMethod(AsmClassGenerator.java:311)在org.codehaus.groovy.classgen.AsmClassGenerator.visitConstructorOrMethod(AsmClassGenerator.java:268)在org.codehaus.groovy.ast.ClassCodeVisitorSupport.visitMethod(ClassCodeVisitorSupport.java:123)在org.codehaus.groovy.classgen.AsmClassGenerator.visitMethod(AsmClassGenerator.java:388)在org.codehaus.groovy.ast.ClassNode.visitContents(ClassNode.java:1056)在org.codehaus.groovy.ast.ClassCodeVisitorSupport.visitClass(ClassCodeVisitorSupport.java:50)在org.codehaus.groovy.classgen.AsmClassGenerator.visitClass(AsmClassGenerator.java:172)在org.codehaus.groovy.control.CompilationUnit$14.call(CompilationUnit.java:770)在org.codehaus.groovy.control.CompilationUnit$14.call(CompilationUnit.java:787)在org.codehaus.groovy.control.CompilationUnit.applyToPrimaryClassNodes(CompilationUnit.java:970)在org.codehaus.groovy.control.CompilationUnit.doPhaseOperation(CompilationUnit.java:548)在org.codehaus.groovy.control.CompilationUnit.processPhaseOperations(CompilationUnit.java:526)在org.codehaus.groovy.control.CompilationUnit.compile(CompilationUnit.java:503)在org.codehaus.groovy.control.CompilationUnit.compile(CompilationUnit.java:482)在org.codehaus.g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奇怪的是，在IntelliJ中，如果我在(命令行)grails清理后从菜单上运行应用程序，我会收到相同的"正在编译192个源文件"消息，并且它有效，第二次收到"正在编译4个源文件"，它仍然有效。

我在谷歌上搜索了一下，但没有用。我甚至不知道如何开始解决这个问题。有人能为我指出解决这一问题的途径吗？我看什么？显然，当发生相同的编译时，它如何在IDE中而不是在命令行中工作？这个错误是什么意思？

Answer 1

我会尝试在不重新加载的情况下运行(我认为是grails -noreloading run-app)-这能解决问题吗？

如果是这样，我们可以更深入地挖掘：可能只是slcache填充错误，如果使用最新的JDK并加载了旧的spring，就会发生这种情况。在重新启动之间(仅使用常规grails run-app)删除.slcache-rm -rf ~/grails/2.1.3/.slcache，而不是grails clean。这有什么不同吗？

然后，我会从中央的这里获取一个更新的弹簧加载(例如1.2.0.RELEASE.jar：http://search.maven.org/remotecontent?filepath=org/springframework/springloaded/1.2.0.RELEASE/springloaded-1.2.0.RELEASE.jar

在grails 2.1.3安装中找到弹簧加载的罐子。重命名它(以备份它)。然后将1.2.0 jar复制到该文件夹中，并重命名它以匹配原始的弹簧加载jar。我在这里找到了我的：

grails-2.1.3/lib/org.springsource.springloaded/springloaded-core/jars/springloaded-core-1.1.1.jar

所以我会将springloaded-1.2.0.RELEASE.jar复制到那个文件夹中，并将其重命名为springloaded-core-1.1.1.jar

再来一个grails clean，然后再次尝试运行应用程序。有更好的吗？

Answer 2

这绝对是个棘手的问题。在开发过程中，偶尔可能需要进行一次清洁是很自然的。

然而，你所描述的听起来是不断重复的，你一定要找到原因。以下是我将如何解决这个问题的策略。我想你的一切都在版本控制之下。

1. 创建一个具有相同名称、相同grails版本的全新项目
2. 从项目中删除所有文件，并将文件从(1)复制到项目中。现在你有了一个干净的项目和巨大的差异
3. 首先恢复(完整或逐行)你的BuildConfig.groovy。原因肯定在这里
4. 接下来，我将恢复Config.groovy/Datasource.groovy/Bootstrap
5. 现在，如果您仍然无法隔离原因，那一定是您的代码。继续回复，直到你最终找到原因。一旦有了可用的类，就恢复resources.groovy