ClassCastException: class com.sun.tools.javac.code.Type$ErrorType cannot be cast to class com.sun.tools.javac.code.Type$MethodType

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#4,556 opened on Aug 26, 2024 3 comments 0 reactions 0 assignees View on GitHub

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Description

With Bazel 7.3.1 I am seeing build failing with the following error. I can't paste the source code here since that's confidential. But the line being reported is inside an enum declaration with dozens of enum value declarations. Specifically, line 219 is one enun declaration with some values from some method calls passed into the constructor. Please let me know if you need more details.

```
[2024-08-26T20:02:27.860Z] xxx/XXXX.java:219: error: An unhandled exception was thrown by the Error Prone static analysis plugin.

[2024-08-26T20:02:27.860Z] destination_type(

[2024-08-26T20:02:27.860Z] ^

[2024-08-26T20:02:27.860Z] Please report this at https://github.com/google/error-prone/issues/new and include the following:

[2024-08-26T20:02:27.860Z]

[2024-08-26T20:02:27.860Z] error-prone version: 2.23.0

[2024-08-26T20:02:27.860Z] BugPattern: UnsafeWildcard

[2024-08-26T20:02:27.860Z] Stack Trace:

[2024-08-26T20:02:27.860Z] java.lang.ClassCastException: class com.sun.tools.javac.code.Type$ErrorType cannot be cast to class com.sun.tools.javac.code.Type$MethodType (com.sun.tools.javac.code.Type$ErrorType and com.sun.tools.javac.code.Type$MethodType are in module jdk.compiler of loader 'app')

[2024-08-26T20:02:27.860Z] at com.google.errorprone.bugpatterns.nullness.UnsafeWildcard.matchNewClass(UnsafeWildcard.java:179)

[2024-08-26T20:02:27.860Z] at com.google.errorprone.scanner.ErrorProneScanner.processMatchers(ErrorProneScanner.java:449)

[2024-08-26T20:02:27.860Z] at com.google.errorprone.scanner.ErrorProneScanner.visitNewClass(ErrorProneScanner.java:773)

[2024-08-26T20:02:27.860Z] at com.google.errorprone.scanner.ErrorProneScanner.visitNewClass(ErrorProneScanner.java:150)

[2024-08-26T20:02:27.860Z] at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCNewClass.accept(JCTree.java:1874)

[2024-08-26T20:02:27.860Z] at jdk.compiler/com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:86)

[2024-08-26T20:02:27.860Z] at com.google.errorprone.scanner.Scanner.scan(Scanner.java:74)

[2024-08-26T20:02:27.860Z] at com.google.errorprone.scanner.Scanner.scan(Scanner.java:48)

[2024-08-26T20:02:27.860Z] at jdk.compiler/com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:96)

[2024-08-26T20:02:27.861Z] at jdk.compiler/com.sun.source.util.TreeScanner.visitVariable(TreeScanner.java:243)

[2024-08-26T20:02:27.861Z] at com.google.errorprone.scanner.ErrorProneScanner.visitVariable(ErrorProneScanner.java:885)

[2024-08-26T20:02:27.861Z] at com.google.errorprone.scanner.ErrorProneScanner.visitVariable(ErrorProneScanner.java:150)

[2024-08-26T20:02:27.861Z] at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCVariableDecl.accept(JCTree.java:1045)

[2024-08-26T20:02:27.861Z] at jdk.compiler/com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:86)

[2024-08-26T20:02:27.861Z] at com.google.errorprone.scanner.Scanner.scan(Scanner.java:74)

[2024-08-26T20:02:27.861Z] at com.google.errorprone.scanner.Scanner.scan(Scanner.java:48)

[2024-08-26T20:02:27.861Z] at jdk.compiler/com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:96)

[2024-08-26T20:02:27.861Z] at jdk.compiler/com.sun.source.util.TreeScanner.scan(TreeScanner.java:111)

[2024-08-26T20:02:27.861Z] at jdk.compiler/com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:119)

[2024-08-26T20:02:27.861Z] at jdk.compiler/com.sun.source.util.TreeScanner.visitClass(TreeScanner.java:203)

[2024-08-26T20:02:27.861Z] at com.google.errorprone.scanner.ErrorProneScanner.visitClass(ErrorProneScanner.java:548)

[2024-08-26T20:02:27.861Z] at com.google.errorprone.scanner.ErrorProneScanner.visitClass(ErrorProneScanner.java:150)

[2024-08-26T20:02:27.861Z] at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCClassDecl.accept(JCTree.java:860)