langtools/test/tools/javac/importscope/TestDuplicateImport.java
changeset 27857 7e913a535736
child 30730 d3ce7619db2c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/langtools/test/tools/javac/importscope/TestDuplicateImport.java	Wed Dec 03 13:46:12 2014 +0100
@@ -0,0 +1,240 @@
+/*
+ * Copyright (c) 2011-2014, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/*
+ * @test
+ * @bug 7101822
+ * @summary static import fails to resolve interfaces on nested enums via import statements
+ */
+
+import com.sun.source.util.JavacTask;
+import java.net.URI;
+import java.util.Arrays;
+import javax.tools.Diagnostic;
+import javax.tools.JavaCompiler;
+import javax.tools.JavaFileObject;
+import javax.tools.SimpleJavaFileObject;
+import javax.tools.StandardJavaFileManager;
+import javax.tools.ToolProvider;
+
+
+public class TestDuplicateImport {
+
+    static int checkCount = 0;
+
+    enum ImportKind {
+        NORMAL("import a.#Q.#N;"),
+        STATIC("import static a.#Q.#N;");
+
+        String importStr;
+
+        ImportKind(String importStr) {
+            this.importStr = importStr;
+        }
+
+        String getImportStatement(QualifierKind qk, NameKind nk) {
+            return importStr.replaceAll("#Q", qk.qualifierStr)
+                    .replaceAll("#N", nk.nameStr);
+        }
+
+        boolean isStatic() {
+            return this == STATIC;
+        }
+    }
+
+    enum QualifierKind {
+        A("A"),
+        B("B"),
+        C("C");
+
+        String qualifierStr;
+
+        QualifierKind(String qualifierStr) {
+            this.qualifierStr = qualifierStr;
+        }
+
+        public boolean compatible(QualifierKind ik) {
+            return this == ik || (this != A && ik != A);
+        }
+    }
+
+    enum NameKind {
+        D("D"),
+        E("E"),
+        M("m"),
+        F("f"),
+        STAR("*"),
+        NON_EXISTENT("NonExistent");
+
+        String nameStr;
+
+        NameKind(String nameStr) {
+            this.nameStr = nameStr;
+        }
+
+        boolean exists() {
+            return this != NON_EXISTENT;
+        }
+
+        boolean isMember() {
+            return this == M || this == F;
+        }
+
+        boolean isType() {
+            return this == D || this == E;
+        }
+    }
+
+    public static void main(String... args) throws Exception {
+
+        //create default shared JavaCompiler - reused across multiple compilations
+        JavaCompiler comp = ToolProvider.getSystemJavaCompiler();
+        StandardJavaFileManager fm = comp.getStandardFileManager(null, null, null);
+
+        for (ImportKind ik1 : ImportKind.values()) {
+            for (ImportKind ik2 : ImportKind.values()) {
+                for (QualifierKind qk1 : QualifierKind.values()) {
+                    for (QualifierKind qk2 : QualifierKind.values()) {
+                        for (NameKind nk1 : NameKind.values()) {
+                            for (NameKind nk2 : NameKind.values()) {
+                                new TestDuplicateImport(ik1, ik2, qk1, qk2, nk1, nk2).run(comp, fm);
+                            }
+                        }
+                    }
+                }
+            }
+        }
+        System.out.println("Total check executed: " + checkCount);
+    }
+
+    ImportKind ik1;
+    ImportKind ik2;
+    QualifierKind qk1;
+    QualifierKind qk2;
+    NameKind nk1;
+    NameKind nk2;
+    JavaSource source;
+    DiagnosticChecker diagChecker;
+
+    TestDuplicateImport(ImportKind ik1, ImportKind ik2, QualifierKind qk1, QualifierKind qk2, NameKind nk1, NameKind nk2) {
+        this.ik1 = ik1;
+        this.ik2 = ik2;
+        this.qk1 = qk1;
+        this.qk2 = qk2;
+        this.nk1 = nk1;
+        this.nk2 = nk2;
+        this.source = new JavaSource();
+        this.diagChecker = new DiagnosticChecker();
+    }
+    class JavaSource extends SimpleJavaFileObject {
+
+        String bodyTemplate = "package a;\n" +
+                              "#I1\n" +
+                              "#I2\n" +
+                              "class A {\n" +
+                              "   static class D { }\n" +
+                              "   static class E { }\n" +
+                              "   static Object f;\n" +
+                              "   static void m() { }\n" +
+                              "}\n" +
+                              "class B {\n" +
+                              "   static class D { }\n" +
+                              "   static class E { }\n" +
+                              "   static Object f;\n" +
+                              "   static void m() { }\n" +
+                              "}\n" +
+                              "class C extends B {\n" +
+                              "}\n";
+
+        String source;
+
+        public JavaSource() {
+            super(URI.create("myfo:/Test.java"), JavaFileObject.Kind.SOURCE);
+            source = bodyTemplate.replaceAll("#I1", ik1.getImportStatement(qk1, nk1))
+                    .replaceAll("#I2", ik2.getImportStatement(qk2, nk2));
+        }
+
+        @Override
+        public CharSequence getCharContent(boolean ignoreEncodingErrors) {
+            return source;
+        }
+    }
+
+    void run(JavaCompiler tool, StandardJavaFileManager fm) throws Exception {
+        JavacTask ct = (JavacTask)tool.getTask(null, fm, diagChecker,
+                null, null, Arrays.asList(source));
+        try {
+            ct.analyze();
+        } catch (Throwable ex) {
+            throw new AssertionError("Error thrown when compiling the following code:\n" + source.getCharContent(true));
+        }
+        check();
+    }
+
+    void check() {
+        checkCount++;
+
+        boolean errorExpected = false;
+
+        //error if the import refers to a non-existent symbol
+        if (!nk1.exists() || !nk2.exists()) {
+            errorExpected = true;
+        }
+
+        //error if a non-static import refers to a non-type symbol
+        if ((nk1.isMember() && !ik1.isStatic()) ||
+                (nk2.isMember() && !ik2.isStatic())) {
+            errorExpected = true;
+        }
+
+        //error if two single non-static (or one static and one non-static)
+        //imports import same names from different places
+        if (nk1 == nk2 && nk1 != NameKind.STAR && !qk1.compatible(qk2) &&
+                (!ik1.isStatic() || !ik2.isStatic())) {
+            errorExpected = true;
+        }
+
+        if ((qk1 == QualifierKind.C && !ik1.isStatic() && nk1 != NameKind.STAR) ||
+            (qk2 == QualifierKind.C && !ik2.isStatic() && nk2 != NameKind.STAR)) {
+            errorExpected = true;
+        }
+
+        if (errorExpected != diagChecker.errorFound) {
+            throw new Error("invalid diagnostics for source:\n" +
+                source.getCharContent(true) +
+                "\nFound error: " + diagChecker.errorFound +
+                "\nExpected error: " + errorExpected);
+        }
+    }
+
+    static class DiagnosticChecker implements javax.tools.DiagnosticListener<JavaFileObject> {
+
+        boolean errorFound;
+
+        public void report(Diagnostic<? extends JavaFileObject> diagnostic) {
+            if (diagnostic.getKind() == Diagnostic.Kind.ERROR) {
+                errorFound = true;
+            }
+        }
+    }
+}