Report compilation errors in exception #142
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Marcono1234
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Jul 21, 2024
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| public void test_compilerErrorsButLoadingDifferentClass() throws Exception { | ||
| // quieten the compiler output | ||
| PrintWriter quietWriter = new PrintWriter(new StringWriter()); | ||
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| // TODO: Should this throw an exception due to the compilation error nonetheless to be less | ||
| // error-prone for users, even if loading class would succeed? | ||
| Class<?> testClass = compiler.loadFromJava(classLoader, | ||
| // Load other class which is unaffected by compilation error | ||
| String.class.getName(), | ||
| "clazz X {}", quietWriter); | ||
| assertSame(String.class, testClass); | ||
| } |
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Open question: This mirrors the existing behavior, but personally I think it would be cleaner to always have CachedCompiler throw an exception (ClassNotFoundException?) when compilation errors occur. Even if loading the class would succeed in the end, because that class was unaffected by the compilation errors.
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This pull request is based on #141 for simplicity; but if you want I can try to base it on the
eabranch instead.Relates to #35
Currently when you call
CachedCompiler#loadFromJavawith code containing compilation errors, you just get aClassNotFoundExceptionwithout any details. And depending on whether you used a customPrinterWriteryou then either have to inspect its output orSystem.errconsole output to understand the actual case.This can be rather confusing and makes troubleshooting more difficult.
This pull request here collects Error diagnostics and in case of a
ClassNotFoundExceptionincludes those in the exception message.