57 lines
1.9 KiB
Java
57 lines
1.9 KiB
Java
/**
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* @test /nodynamiccopyright/
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* @bug 8295024
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* @summary Cyclic constructor error is non-deterministic and inconsistent
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*/
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import java.io.*;
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import java.net.*;
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import java.util.*;
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import java.util.stream.*;
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import javax.tools.*;
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public class T8295024 {
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private static final int NUM_RUNS = 10;
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private static final String EXPECTED_ERROR = """
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Cyclic.java:12:9: compiler.err.recursive.ctor.invocation
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1 error
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""";
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private static final String SOURCE = """
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public class Cyclic {
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public Cyclic(int x) {
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this((float)x);
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}
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public Cyclic(float x) {
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this((long)x);
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}
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public Cyclic(long x) {
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this((double)x);
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}
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public Cyclic(double x) {
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this((int)x);
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// ^ error should be reported here every time
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}
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}
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""";
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private static final JavaFileObject FILE = SimpleJavaFileObject.forSource(
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URI.create("string:///Cyclic.java"), SOURCE);
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public static void main(String[] args) throws Exception {
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// Compile program NUM_RUNS times
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final JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
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final StringWriter output = new StringWriter();
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final Iterable<String> options = Collections.singleton("-XDrawDiagnostics");
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final Iterable<JavaFileObject> files = Collections.singleton(FILE);
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for (int i = 0; i < NUM_RUNS; i++)
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compiler.getTask(output, null, null, options, null, files).call();
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// Verify consistent error report each time
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final String expected = IntStream.range(0, NUM_RUNS)
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.mapToObj(i -> EXPECTED_ERROR)
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.collect(Collectors.joining(""));
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final String actual = output.toString().replaceAll("\\r", "");
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assert expected.equals(actual) : "EXPECTED:\n" + expected + "ACTUAL:\n" + actual;
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}
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}
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