我想查看从我自己的源代码生成的代码，但似乎IDEA没有使用 IntelliJ API Decompiler 使用新的fernflower插件对它们进行反编译。
至少我有标题评论
// IntelliJ API Decompiler stub source generated from a class file
// Implementation of methods is not available
和类似的方法：public void update() { /* compiled code */ }
同时，在外部库（例如JDK）中，我看到了正常的标题和反编译代码。
// Source code recreated from a .class file by IntelliJ IDEA
// (powered by Fernflower decompiler)
我可以使反编译工作，如果我将代码编译到jar并将其添加到某个模块，但它看起来不像普通的解决方案。
我可以使用fernflower使IDEA对任何类文件进行反编译吗？
编辑：在打开文件时，我在IDEA日志文件中遇到异常。请参阅代码段。
<pre>
2015-02-13 19:16:29,991 [119281666] WARN - l.compiled.ClassFileDecompiler - decompiler: class org.jetbrains.java.decompiler.IdeaDecompiler
com.intellij.psi.compiled.ClassFileDecompilers$Light$CannotDecompileException: org.jetbrains.java.decompiler.IdeaLogger$InternalException: Method <init> (Ljava/util/HashMap;)V couldn't be decompiled.
at org.jetbrains.java.decompiler.IdeaDecompiler.getText(IdeaDecompiler.java:162)
at com.intellij.psi.impl.compiled.ClassFileDecompiler.decompile(ClassFileDecompiler.java:57)
at com.intellij.openapi.fileEditor.impl.LoadTextUtil.loadText(LoadTextUtil.java:364)
at com.intellij.openapi.fileEditor.impl.FileDocumentManagerImpl.getDocument(FileDocumentManagerImpl.java:167)
at com.intellij.openapi.fileEditor.impl.text.PsiAwareTextEditorProvider.createEditorAsync(PsiAwareTextEditorProvider.java:58)
at com.intellij.openapi.fileEditor.impl.FileEditorManagerImpl.openFileImpl4(FileEditorManagerImpl.java:778)
at com.intellij.openapi.fileEditor.impl.FileEditorManagerImpl.openFileImpl3(FileEditorManagerImpl.java:736)
at com.intellij.openapi.fileEditor.impl.FileEditorManagerImpl$8.run(FileEditorManagerImpl.java:716)
at com.intellij.openapi.command.impl.CoreCommandProcessor.executeCommand(CoreCommandProcessor.java:117)
at com.intellij.openapi.command.impl.CoreCommandProcessor.executeCommand(CoreCommandProcessor.java:99)
at com.intellij.openapi.command.impl.CoreCommandProcessor.executeCommand(CoreCommandProcessor.java:85)
at com.intellij.openapi.fileEditor.impl.FileEditorManagerImpl.openFileImpl2(FileEditorManagerImpl.java:713)
at com.intellij.openapi.fileEditor.impl.FileEditorManagerImpl.openFileWithProviders(FileEditorManagerImpl.java:654)
at com.intellij.openapi.fileEditor.ex.FileEditorManagerEx.openFile(FileEditorManagerEx.java:146)
at com.intellij.openapi.fileEditor.impl.FileEditorManagerImpl$14.run(FileEditorManagerImpl.java:1071)
at com.intellij.openapi.command.impl.CoreCommandProcessor.executeCommand(CoreCommandProcessor.java:124)
at com.intellij.openapi.command.impl.CoreCommandProcessor.executeCommand(CoreCommandProcessor.java:99)
at com.intellij.openapi.command.impl.CoreCommandProcessor.executeCommand(CoreCommandProcessor.java:85)
at com.intellij.openapi.fileEditor.impl.FileEditorManagerImpl.openEditor(FileEditorManagerImpl.java:1067)
at com.intellij.openapi.fileEditor.OpenFileDescriptor.navigateInAnyFileEditor(OpenFileDescriptor.java:152)
at com.intellij.openapi.fileEditor.OpenFileDescriptor.navigateInEditor(OpenFileDescriptor.java:138)
at com.intellij.openapi.fileEditor.OpenFileDescriptor.navigateInEditorOrNativeApp(OpenFileDescriptor.java:134)
at com.intellij.openapi.fileEditor.OpenFileDescriptor.navigate(OpenFileDescriptor.java:121)
at com.intellij.psi.impl.PsiElementBase.navigate(PsiElementBase.java:197)
at com.intellij.codeInsight.navigation.NavigationUtil.openFileWithPsiElement(NavigationUtil.java:167)
at com.intellij.ide.projectView.impl.nodes.AbstractPsiBasedNode.navigate(AbstractPsiBasedNode.java:207)
at com.intellij.ide.projectView.impl.nodes.AbstractPsiBasedNode.navigate(AbstractPsiBasedNode.java:217)
at com.intellij.ide.projectView.impl.nodes.PsiFileNode.navigate(PsiFileNode.java:132)
at com.intellij.util.OpenSourceUtil.navigate(OpenSourceUtil.java:53)
at com.intellij.util.OpenSourceUtil.openSourcesFrom(OpenSourceUtil.java:31)
at com.intellij.util.EditSourceOnDoubleClickHandler$TreeMouseListener.processDoubleClick(EditSourceOnDoubleClickHandler.java:130)
at com.intellij.util.EditSourceOnDoubleClickHandler$TreeMouseListener.onDoubleClick(EditSourceOnDoubleClickHandler.java:122)
at com.intellij.ui.DoubleClickListener.onClick(DoubleClickListener.java:30)
at com.intellij.ui.ClickListener$1.mouseReleased(ClickListener.java:73)
at java.awt.AWTEventMulticaster.mouseReleased(AWTEventMulticaster.java:273)
at java.awt.AWTEventMulticaster.mouseReleased(AWTEventMulticaster.java:272)
at java.awt.AWTEventMulticaster.mouseReleased(AWTEventMulticaster.java:272)
at java.awt.AWTEventMulticaster.mouseReleased(AWTEventMulticaster.java:272)
at java.awt.Component.processMouseEvent(Component.java:6414)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3275)
at com.intellij.ui.treeStructure.Tree.processMouseEvent(Tree.java:421)
at com.intellij.ide.dnd.aware.DnDAwareTree.processMouseEvent(DnDAwareTree.java:53)
at java.awt.Component.processEvent(Component.java:6179)
at java.awt.Container.processEvent(Container.java:2084)
at java.awt.Component.dispatchEventImpl(Component.java:4776)
at java.awt.Container.dispatchEventImpl(Container.java:2142)
at java.awt.Component.dispatchEvent(Component.java:4604)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4618)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4279)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4209)
at java.awt.Container.dispatchEventImpl(Container.java:2128)
at java.awt.Window.dispatchEventImpl(Window.java:2492)
at java.awt.Component.dispatchEvent(Component.java:4604)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:717)
at java.awt.EventQueue.access$400(EventQueue.java:82)
at java.awt.EventQueue$2.run(EventQueue.java:676)
at java.awt.EventQueue$2.run(EventQueue.java:674)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:86)
at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:97)
at java.awt.EventQueue$3.run(EventQueue.java:690)
at java.awt.EventQueue$3.run(EventQueue.java:688)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:86)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:687)
at com.intellij.ide.IdeEventQueue.defaultDispatchEvent(IdeEventQueue.java:748)
at com.intellij.ide.IdeEventQueue._dispatchEvent(IdeEventQueue.java:573)
at com.intellij.ide.IdeEventQueue.dispatchEvent(IdeEventQueue.java:384)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:296)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:211)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:201)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:196)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:188)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)
Caused by: org.jetbrains.java.decompiler.IdeaLogger$InternalException: Method <init> (Ljava/util/HashMap;)V couldn't be decompiled.
at org.jetbrains.java.decompiler.IdeaLogger.writeMessage(IdeaLogger.java:44)
at org.jetbrains.java.decompiler.main.rels.ClassWrapper.init(ClassWrapper.java:151)
at org.jetbrains.java.decompiler.main.ClassesProcessor.initWrappers(ClassesProcessor.java:305)
at org.jetbrains.java.decompiler.main.ClassesProcessor.writeClass(ClassesProcessor.java:252)
at org.jetbrains.java.decompiler.main.Fernflower.getClassContent(Fernflower.java:86)
at org.jetbrains.java.decompiler.struct.ContextUnit.save(ContextUnit.java:113)
at org.jetbrains.java.decompiler.struct.StructContext.saveContext(StructContext.java:72)
at org.jetbrains.java.decompiler.main.Fernflower.decompileContext(Fernflower.java:54)
at org.jetbrains.java.decompiler.main.decompiler.BaseDecompiler.decompileContext(BaseDecompiler.java:41)
at org.jetbrains.java.decompiler.IdeaDecompiler.getText(IdeaDecompiler.java:151)
... 73 more
Caused by: java.lang.ClassCastException: org.jetbrains.java.decompiler.struct.consts.PrimitiveConstant cannot be cast to org.jetbrains.java.decompiler.struct.consts.LinkConstant
at org.jetbrains.java.decompiler.modules.decompiler.ExprProcessor.processBlock(ExprProcessor.java:563)
at org.jetbrains.java.decompiler.modules.decompiler.ExprProcessor.processStatement(ExprProcessor.java:202)
at org.jetbrains.java.decompiler.main.rels.MethodProcessorThread.codeToJava(MethodProcessorThread.java:162)
at org.jetbrains.java.decompiler.main.rels.ClassWrapper.init(ClassWrapper.java:92)
... 81 more
</pre>
答案 0 :(得分：8)
在我的情况下，问题是我安装了“Java Decompiler IntelliJ Plugin”。 Unistall它可以完成这项工作。
答案 1 :(得分：1)
我遇到了同样的问题，但是我用科特林写作。我已经通过安装Kotlin to Java decompiler插件解决了。请执行以下操作：
Ctrl + Alt + S打开设置。Kotlin to Java decompiler。.class个文件。Ctrl + Shift + Alt + D或.kt文件中按.class，以查看其反编译的Java代码。 UPD。另外，您也可以在没有插件的情况下将Kotlin反编译为Java。
转到Tools-> Kotlin-> Show Kotlin bytecode。在打开的选项卡中，单击Decompile按钮。但是无论如何，该插件更方便。 ：）