将 Java6 迁移到 Java8 时出现错误的类格式异常

如何解决将 Java6 迁移到 Java8 时出现错误的类格式异常

我使用的是 Java8、drools5.6.1、Tomcat 8.5、ecj 4.6.1---

  <<< ERROR!
java.lang.RuntimeException: wrong class format
    at org.eclipse.jdt.internal.compiler.classfmt.ClassFileReader.<init>(ClassFileReader.java:329)
    at org.drools.commons.jci.compilers.EclipseJavaCompiler$2.createNameEnvironmentAnswer(EclipseJavaCompiler.java:275)
    at org.drools.commons.jci.compilers.EclipseJavaCompiler$2.findType(EclipseJavaCompiler.java:246)
    at org.drools.commons.jci.compilers.EclipseJavaCompiler$2.findType(EclipseJavaCompiler.java:202)
    at org.eclipse.jdt.internal.compiler.lookup.LookupEnvironment.askForType(LookupEnvironment.java:97)
    at org.eclipse.jdt.internal.compiler.lookup.UnresolvedReferenceBinding.resolve(UnresolvedReferenceBinding.java:43)
    at org.eclipse.jdt.internal.compiler.lookup.BinaryTypeBinding.resolveType(BinaryTypeBinding.java:97)
    at org.eclipse.jdt.internal.compiler.lookup.ParameterizedTypeBinding.resolve(ParameterizedTypeBinding.java:816)
    at org.eclipse.jdt.internal.compiler.lookup.BinaryTypeBinding.resolveType(BinaryTypeBinding.java:111)
    at org.eclipse.jdt.internal.compiler.lookup.BinaryTypeBinding.resolveTypesFor(BinaryTypeBinding.java:907)
    at org.eclipse.jdt.internal.compiler.lookup.BinaryTypeBinding.getExactMethod(BinaryTypeBinding.java:708)
    at org.eclipse.jdt.internal.compiler.lookup.Scope.findExactMethod(Scope.java:761)
    at org.eclipse.jdt.internal.compiler.lookup.Scope.getmethod(Scope.java:2002)
    at org.eclipse.jdt.internal.compiler.ast.MessageSend.resolveType(MessageSend.java:384)
    at org.eclipse.jdt.internal.compiler.ast.AllocationExpression.resolveType(AllocationExpression.java:277)
    at org.eclipse.jdt.internal.compiler.ast.Assignment.resolveType(Assignment.java:179)
    at org.eclipse.jdt.internal.compiler.ast.Expression.resolve(Expression.java:882)
    at org.eclipse.jdt.internal.compiler.ast.AbstractMethodDeclaration.resolveStatements(AbstractMethodDeclaration.java:432)
    at org.eclipse.jdt.internal.compiler.ast.MethodDeclaration.resolveStatements(MethodDeclaration.java:190)
    at org.eclipse.jdt.internal.compiler.ast.AbstractMethodDeclaration.resolve(AbstractMethodDeclaration.java:403)
    at org.eclipse.jdt.internal.compiler.ast.TypeDeclaration.resolve(TypeDeclaration.java:1047)
    at org.eclipse.jdt.internal.compiler.ast.TypeDeclaration.resolve(TypeDeclaration.java:1088)
    at org.eclipse.jdt.internal.compiler.ast.TypeDeclaration.resolve(TypeDeclaration.java:976)
    at org.eclipse.jdt.internal.compiler.ast.TypeDeclaration.resolve(TypeDeclaration.java:1094)
    at org.eclipse.jdt.internal.compiler.ast.compilationunitDeclaration.resolve(compilationunitDeclaration.java:353)
    at org.eclipse.jdt.internal.compiler.Compiler.process(Compiler.java:596)
    at org.eclipse.jdt.internal.compiler.Compiler.compile(Compiler.java:411)
    at org.drools.commons.jci.compilers.EclipseJavaCompiler.compile(EclipseJavaCompiler.java:358)
    at org.drools.commons.jci.compilers.AbstractJavaCompiler.compile(AbstractJavaCompiler.java:49)
    at org.drools.rule.builder.dialect.java.JavaDialect.compileAll(JavaDialect.java:368)
    at org.drools.compiler.DialectCompiletimeRegistry.compileAll(DialectCompiletimeRegistry.java:53)
    at org.drools.compiler.PackageRegistry.compileAll(PackageRegistry.java:70)
    at org.drools.compiler.PackageBuilder.compileAll(PackageBuilder.java:844)
    at org.drools.compiler.PackageBuilder.addPackage(PackageBuilder.java:801)
    at org.drools.compiler.PackageBuilder.addPackageFromDrl(PackageBuilder.java:361)
    at com.rs.sw.promopack.PromopackRuleBaseManager.writerToPackage(PromopackRuleBaseManager.java:488)
    at com.rs.sw.promopack.PromopackRuleBaseManager.createPackage(PromopackRuleBaseManager.java:245)
    at com.rs.sw.promopack.PromopackRuleBaseManager.performModifications(PromopackRuleBaseManager.java:430)
    at com.rs.sw.promopack.PromopackRuleBaseManager.performModifications(PromopackRuleBaseManager.java:396)
    at com.rs.sw.promopack.PromopackRuleBaseManager.getRules(PromopackRuleBaseManager.java:328)
    at com.rs.sw.promopack.RulesBaseManagerTest.assertResults(RulesBaseManagerTest.java:45)
    at com.rs.sw.promopack.RulesBaseManagerTest.testDuplicateAction(RulesBaseManagerTest.java:97)

解决方法

问题得到解决。我已经删除了“eclipse.jdt.core”jar 并替换为“ecj”jar 并使用 maven 更新更新了项目。我开始工作。 谢谢罗迪。