org.eclipse.jdt.core.tests.compiler/src/org/eclipse/jdt/core/tests/compiler/regression/SuperTypeTest.java

/*******************************************************************************
 * Copyright (c) 2006, 2014 IBM Corporation and others.
 *
 * This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License 2.0
 * which accompanies this distribution, and is available at
 * https://www.eclipse.org/legal/epl-2.0/
 *
 * SPDX-License-Identifier: EPL-2.0
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.jdt.core.tests.compiler.regression;

import org.eclipse.jdt.internal.compiler.classfmt.ClassFileConstants;
import org.eclipse.jdt.internal.compiler.impl.CompilerOptions;

import java.util.Map;

import junit.framework.Test;

@SuppressWarnings({ "unchecked", "rawtypes" })
public class SuperTypeTest extends AbstractRegressionTest {

	public SuperTypeTest(String name) {
		super(name);
	}
	// Static initializer to specify tests subset using TESTS_* static variables
	// All specified tests which does not belong to the class are skipped...
	static {
//		TESTS_NAMES = new String[] { "test000" };
//		TESTS_NUMBERS = new int[] { 42, 43, 44 };
//		TESTS_RANGE = new int[] { 11, -1 };
	}

	public static Test suite() {
		return buildAllCompliancesTestSuite(testClass());
	}

	public static Class testClass() {
		return SuperTypeTest.class;
	}

	/**
	 * http://bugs.eclipse.org/bugs/show_bug.cgi?id=136106
	 */
	public void test001() {
		this.runConformTest(
			new String[] {
				/* org.eclipse.curiosity.A */
				"org/eclipse/curiosity/A.java",
				"package org.eclipse.curiosity;\n" +
				"public abstract class A implements InterfaceA {\n" +
				"	private void e() {\n" +
				"	}\n" +
				"	public void f() {\n" +
				"		this.e();\n" +
				"	}\n" +
				"}",
				/* org.eclipse.curiosity.InterfaceA */
				"org/eclipse/curiosity/InterfaceA.java",
				"package org.eclipse.curiosity;\n" +
				"public interface InterfaceA extends InterfaceBase {}\n",
				"org/eclipse/curiosity/InterfaceBase.java",
				/* org.eclipse.curiosity.InterfaceBase */
				"package org.eclipse.curiosity;\n" +
				"public interface InterfaceBase {\n" +
				"    public void a();\n" +
				"    public void b();\n" +
				"    public void c();\n" +
				"    public void d();\n" +
				"}"
			}
		);
	}
// was Compliance_1_x#test001
public void test002() {
	String[] sources = new String[] {
		"p1/Test.java",
		"package p1; \n"+
		"public class Test { \n"+
		"	public static void main(String[] arguments) { \n"+
		"		new Test().foo(); \n"+
		"	} \n"+
		"	class M { \n"+
		"	} \n"+
		"	void foo(){ \n"+
		"		class Y extends Secondary { \n"+
		"			M m; \n"+
		"		}; \n"+
		"		System.out.println(\"SUCCESS\");	\n" +
		"	} \n"+
		"} \n" +
		"class Secondary { \n" +
		"	class M {} \n" +
		"} \n"
	};
	if (this.complianceLevel == ClassFileConstants.JDK1_3) {
		runNegativeTest(
			sources,
			"----------\n" +
			"1. ERROR in p1\\Test.java (at line 10)\n" +
			"	M m; \n" +
			"	^\n" +
			"The type M is defined in an inherited type and an enclosing scope\n" +
			"----------\n");
	} else {
		runConformTest(
			sources,
			"SUCCESS");
	}
}

// was Compliance_1_x#test002
public void test003() {
	String[] sources = new String[] {
		"p1/Test.java",
		"package p1; \n"+
		"public class Test { \n"+
		"	public static void main(String[] arguments) { \n"+
		"		new Test().foo(); \n"+
		"	} \n"+
		"	String bar() { \n"+
		"		return \"FAILED\";	\n" +
		"	} \n"+
		"	void foo(){ \n"+
		"		class Y extends Secondary { \n"+
		"			String z = bar();	\n" +
		"		}; \n"+
		"		System.out.println(new Y().z);	\n" +
		"	} \n"+
		"} \n" +
		"class Secondary { \n" +
		"	String bar(){ return \"SUCCESS\"; } \n" +
		"} \n"
	};
	if (this.complianceLevel == ClassFileConstants.JDK1_3) {
		runNegativeTest(
			sources,
			"----------\n" +
			"1. ERROR in p1\\Test.java (at line 11)\n" +
			"	String z = bar();	\n" +
			"	           ^^^\n" +
			"The method bar is defined in an inherited type and an enclosing scope\n" +
			"----------\n");
	} else {
		runConformTest(
			sources,
			"SUCCESS");
	}
}

// was Compliance_1_x#test003
public void test004() {
	String[] sources = new String[] {
		"p1/Test.java",
		"package p1; \n"+
		"public class Test { \n"+
		"	public static void main(String[] arguments) { \n"+
		"		new Test().foo(); \n"+
		"	} \n"+
		"	String bar = \"FAILED\";"+
		"	void foo(){ \n"+
		"		class Y extends Secondary { \n"+
		"			String z = bar; \n"+
		"		}; \n"+
		"		System.out.println(new Y().z);	\n" +
		"	} \n"+
		"} \n" +
		"class Secondary { \n" +
		"	String bar = \"SUCCESS\"; \n" +
		"} \n"
	};
	if (this.complianceLevel == ClassFileConstants.JDK1_3) {
		runNegativeTest(
			sources,
			"----------\n" +
			"1. ERROR in p1\\Test.java (at line 8)\n" +
			"	String z = bar; \n" +
			"	           ^^^\n" +
			"The field bar is defined in an inherited type and an enclosing scope \n" +
			"----------\n");
	} else {
		runConformTest(
			sources,
			"SUCCESS");
	}
}

// was Compliance_1_x#test004
public void test005() {
	this.runConformTest(
		new String[] {
			"p1/Test.java",
			"package p1; \n"+
			"public class Test { \n"+
			"	public static void main(String[] arguments) { \n"+
			"		new Test().foo(); \n"+
			"	} \n"+
			"	String bar() { \n"+
			"		return \"SUCCESS\";	\n" +
			"	} \n"+
			"	void foo(){ \n"+
			"		class Y extends Secondary { \n"+
			"			String z = bar();	\n" +
			"		}; \n"+
			"		System.out.println(new Y().z);	\n" +
			"	} \n"+
			"} \n" +
			"class Secondary { \n" +
			"	private String bar(){ return \"FAILED\"; } \n" +
			"} \n"
		},
		"SUCCESS");
}

// was Compliance_1_x#test005
public void test006() {
	this.runConformTest(
		new String[] {
			"p1/Test.java",
			"package p1; \n"+
			"public class Test { \n"+
			"	public static void main(String[] arguments) { \n"+
			"		new Test().foo(); \n"+
			"	} \n"+
			"	String bar = \"SUCCESS\";"+
			"	void foo(){ \n"+
			"		class Y extends Secondary { \n"+
			"			String z = bar; \n"+
			"		}; \n"+
			"		System.out.println(new Y().z);	\n" +
			"	} \n"+
			"} \n" +
			"class Secondary { \n" +
			"	private String bar = \"FAILED\"; \n" +
			"} \n"
		},
		"SUCCESS");
}

// was Compliance_1_x#test006
public void test007() {
	this.runNegativeTest(
		new String[] {
			"p1/Test.java",
			"package p1; \n"+
			"public class Test { \n"+
			"	public static void main(String[] arguments) { \n"+
			"		new Test().foo(); \n"+
			"	} \n"+
			"	String bar() { \n"+
			"		return \"FAILED\";	\n" +
			"	} \n"+
			"	void foo(){ \n"+
			"		class Y extends Secondary { \n"+
			"			String z = bar();	\n" +
			"		}; \n"+
			"		System.out.println(new Y().z);	\n" +
			"	} \n"+
			"} \n" +
			"class Secondary { \n" +
			"	String bar(int i){ return \"SUCCESS\"; } \n" +
			"} \n"
		},
		"----------\n" +
		"1. ERROR in p1\\Test.java (at line 11)\n" +
		"	String z = bar();	\n" +
		"	           ^^^\n" +
		"The method bar(int) in the type Secondary is not applicable for the arguments ()\n" +
		"----------\n"
	);
}
// https://bugs.eclipse.org/bugs/show_bug.cgi?id=77918
// default is silent
public void test008() {
	this.runConformTest(
		new String[] {
			"X.java",
			"public class X implements I {}\n" +
			"class Y extends X implements I, J {}" +
			"interface I {}\n" +
			"interface J {}\n"
		},
		""
	);
}
// https://bugs.eclipse.org/bugs/show_bug.cgi?id=77918
// raising an error
public void test009() {
	Map customOptions = getCompilerOptions();
	customOptions.put(CompilerOptions.OPTION_ReportRedundantSuperinterface,  CompilerOptions.ERROR);
	runNegativeTest(
		// test directory preparation
		true /* flush output directory */,
		new String[] { /* test files */
			"X.java",
			"public class X implements I {}\n" +
			"class Y extends X implements I, J {}\n" +
			"interface I {}\n" +
			"interface J {}\n"
		},
		// compiler options
		null /* no class libraries */,
		customOptions /* custom options */,
		// compiler results
		"----------\n" + /* expected compiler log */
		"1. ERROR in X.java (at line 2)\n" +
		"	class Y extends X implements I, J {}\n" +
		"	                             ^\n" +
		"Redundant superinterface I for the type Y, already defined by X\n" +
		"----------\n",
		// javac options
		JavacTestOptions.Excuse.EclipseWarningConfiguredAsError /* javac test options */);
}
// https://bugs.eclipse.org/bugs/show_bug.cgi?id=77918
// raising an error - deeper hierarchy
public void test010() {
	Map customOptions = getCompilerOptions();
	customOptions.put(CompilerOptions.OPTION_ReportRedundantSuperinterface, CompilerOptions.ERROR);
	runNegativeTest(
		// test directory preparation
		true /* flush output directory */,
		new String[] { /* test files */
			"X.java",
			"public class X implements I {}\n" +
			"class Y extends X {}\n" +
			"class Z extends Y implements J, I {}\n" +
			"interface I {}\n" +
			"interface J {}\n"
		},
		// compiler options
		null /* no class libraries */,
		customOptions /* custom options */,
		// compiler results
		"----------\n" + /* expected compiler log */
		"1. ERROR in X.java (at line 3)\n" +
		"	class Z extends Y implements J, I {}\n" +
		"	                                ^\n" +
		"Redundant superinterface I for the type Z, already defined by X\n" +
		"----------\n",
		// javac options
		JavacTestOptions.Excuse.EclipseWarningConfiguredAsError /* javac test options */);
}
// https://bugs.eclipse.org/bugs/show_bug.cgi?id=77918
// no error - deeper hierarchy
public void test011() {
	Map customOptions = getCompilerOptions();
	customOptions.put(CompilerOptions.OPTION_ReportRedundantSuperinterface,  CompilerOptions.ERROR);
	this.runConformTest(
		new String[] {
			"X.java",
			"public class X implements I {}\n" +
			"class Y extends X {}\n" +
			"class Z extends Y implements J {}" +
			"interface I {}\n" +
			"interface J {}\n"
		},
		"",
		null /* no extra class libraries */,
		true /* flush output directory */,
		null /* no vm arguments */,
		customOptions,
		null /* no custom requestor*/);
}
// https://bugs.eclipse.org/bugs/show_bug.cgi?id=77918
// error - extending interfaces
public void test012() {
	Map customOptions = getCompilerOptions();
	customOptions.put(CompilerOptions.OPTION_ReportRedundantSuperinterface,  CompilerOptions.ERROR);
	runNegativeTest(
		// test directory preparation
		true /* flush output directory */,
		new String[] { /* test files */
			"X.java",
			"public class X implements J {}\n" +
			"class Y extends X implements I {}\n" +
			"interface I {}\n" +
			"interface J extends I {}\n"
		},
		// compiler options
		null /* no class libraries */,
		customOptions /* custom options */,
		// compiler results
		"----------\n" + /* expected compiler log */
		"1. ERROR in X.java (at line 2)\n" +
		"	class Y extends X implements I {}\n" +
		"	                             ^\n" +
		"Redundant superinterface I for the type Y, already defined by J\n" +
		"----------\n",
		// javac options
		JavacTestOptions.Excuse.EclipseWarningConfiguredAsError /* javac test options */);
}
//https://bugs.eclipse.org/bugs/show_bug.cgi?id=288749
public void test013() {
	if (this.complianceLevel < ClassFileConstants.JDK1_5) return;
	Map customOptions = getCompilerOptions();
	customOptions.put(CompilerOptions.OPTION_ReportRedundantSuperinterface,  CompilerOptions.ERROR);
	runNegativeTest(
		// test directory preparation
		true /* flush output directory */,
		new String[] { /* test files */
			"X.java",
			"import java.util.*;\n" +
			"interface X<E> extends List<E>, Collection<E>, Iterable<E> {}\n" +
			"interface Y<E> extends Collection<E>, List<E> {}\n" +
			"interface XXX<E> extends Iterable<E>, List<E>, Collection<E> {}\n" +
			"abstract class Z implements List<Object>, Collection<Object> {}\n" +
			"abstract class ZZ implements Collection<Object>, List<Object> {}"
		},
		// compiler options
		null /* no class libraries */,
		customOptions /* custom options */,
		// compiler results
		"----------\n" +
		"1. ERROR in X.java (at line 2)\n" +
		"	interface X<E> extends List<E>, Collection<E>, Iterable<E> {}\n" +
		"	                                ^^^^^^^^^^\n" +
		"Redundant superinterface Collection<E> for the type X<E>, already defined by List<E>\n" +
		"----------\n" +
		"2. ERROR in X.java (at line 2)\n" +
		"	interface X<E> extends List<E>, Collection<E>, Iterable<E> {}\n" +
		"	                                               ^^^^^^^^\n" +
		"Redundant superinterface Iterable<E> for the type X<E>, already defined by List<E>\n" +
		"----------\n" +
		"3. ERROR in X.java (at line 3)\n" +
		"	interface Y<E> extends Collection<E>, List<E> {}\n" +
		"	                       ^^^^^^^^^^\n" +
		"Redundant superinterface Collection<E> for the type Y<E>, already defined by List<E>\n" +
		"----------\n" +
		"4. ERROR in X.java (at line 4)\n" +
		"	interface XXX<E> extends Iterable<E>, List<E>, Collection<E> {}\n" +
		"	                         ^^^^^^^^\n" +
		"Redundant superinterface Iterable<E> for the type XXX<E>, already defined by List<E>\n" +
		"----------\n" +
		"5. ERROR in X.java (at line 4)\n" +
		"	interface XXX<E> extends Iterable<E>, List<E>, Collection<E> {}\n" +
		"	                                               ^^^^^^^^^^\n" +
		"Redundant superinterface Collection<E> for the type XXX<E>, already defined by List<E>\n" +
		"----------\n" +
		"6. ERROR in X.java (at line 5)\n" +
		"	abstract class Z implements List<Object>, Collection<Object> {}\n" +
		"	                                          ^^^^^^^^^^\n" +
		"Redundant superinterface Collection<Object> for the type Z, already defined by List<Object>\n" +
		"----------\n" +
		"7. ERROR in X.java (at line 6)\n" +
		"	abstract class ZZ implements Collection<Object>, List<Object> {}\n" +
		"	                             ^^^^^^^^^^\n" +
		"Redundant superinterface Collection<Object> for the type ZZ, already defined by List<Object>\n" +
		"----------\n",
		JavacTestOptions.SKIP);
}
//https://bugs.eclipse.org/bugs/show_bug.cgi?id=288749
public void test014() {
	Map customOptions = getCompilerOptions();
	customOptions.put(CompilerOptions.OPTION_ReportRedundantSuperinterface,  CompilerOptions.ERROR);
	runNegativeTest(
		// test directory preparation
		true /* flush output directory */,
		new String[] { /* test files */
			"X.java",
			"public class X implements I, J {}",
			"I.java",
			"public interface I {}",
			"J.java",
			"public interface J extends I {}"
		},
		// compiler options
		null /* no class libraries */,
		customOptions /* custom options */,
		// compiler results
		"----------\n" +
		"1. ERROR in X.java (at line 1)\n" +
		"	public class X implements I, J {}\n" +
		"	                          ^\n" +
		"Redundant superinterface I for the type X, already defined by J\n" +
		"----------\n",
		JavacTestOptions.SKIP);
}
// https://bugs.eclipse.org/bugs/show_bug.cgi?id=320911 (as is)
public void test015() {
	Map customOptions = getCompilerOptions();
	customOptions.put(CompilerOptions.OPTION_ReportRedundantSuperinterface,  CompilerOptions.ERROR);
	runNegativeTest(
		// test directory preparation
		true /* flush output directory */,
		new String[] { /* test files */
			"X.java",
			"interface IVerticalRulerColumn {}\n" +
			"interface IVerticalRulerInfo {}\n" +
			"interface IVerticalRulerInfoExtension {}\n" +
			"interface IChangeRulerColumn extends IVerticalRulerColumn, IVerticalRulerInfoExtension {}\n" +
			"interface IRevisionRulerColumn extends IVerticalRulerColumn, IVerticalRulerInfo, IVerticalRulerInfoExtension {}\n" +
			"public final class X implements IVerticalRulerColumn, IVerticalRulerInfo, IVerticalRulerInfoExtension, IChangeRulerColumn, IRevisionRulerColumn {}\n"
		},
		// compiler options
		null /* no class libraries */,
		customOptions /* custom options */,
		// compiler results
		"----------\n" +
		"1. ERROR in X.java (at line 6)\n" +
		"	public final class X implements IVerticalRulerColumn, IVerticalRulerInfo, IVerticalRulerInfoExtension, IChangeRulerColumn, IRevisionRulerColumn {}\n" +
		"	                                ^^^^^^^^^^^^^^^^^^^^\n" +
		"Redundant superinterface IVerticalRulerColumn for the type X, already defined by IChangeRulerColumn\n" +
		"----------\n" +
		"2. ERROR in X.java (at line 6)\n" +
		"	public final class X implements IVerticalRulerColumn, IVerticalRulerInfo, IVerticalRulerInfoExtension, IChangeRulerColumn, IRevisionRulerColumn {}\n" +
		"	                                                      ^^^^^^^^^^^^^^^^^^\n" +
		"Redundant superinterface IVerticalRulerInfo for the type X, already defined by IRevisionRulerColumn\n" +
		"----------\n" +
		"3. ERROR in X.java (at line 6)\n" +
		"	public final class X implements IVerticalRulerColumn, IVerticalRulerInfo, IVerticalRulerInfoExtension, IChangeRulerColumn, IRevisionRulerColumn {}\n" +
		"	                                                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^\n" +
		"Redundant superinterface IVerticalRulerInfoExtension for the type X, already defined by IChangeRulerColumn\n" +
		"----------\n",
		JavacTestOptions.SKIP);
}
// https://bugs.eclipse.org/bugs/show_bug.cgi?id=320911 (variation)
public void test016() {
	Map customOptions = getCompilerOptions();
	customOptions.put(CompilerOptions.OPTION_ReportRedundantSuperinterface,  CompilerOptions.ERROR);
	runNegativeTest(
		// test directory preparation
		true /* flush output directory */,
		new String[] { /* test files */
			"X.java",
			"interface IVerticalRulerColumn {}\n" +
			"interface IVerticalRulerInfo {}\n" +
			"interface IVerticalRulerInfoExtension {}\n" +
			"interface IChangeRulerColumn extends IVerticalRulerColumn, IVerticalRulerInfoExtension {}\n" +
			"interface IRevisionRulerColumn extends IVerticalRulerColumn, IVerticalRulerInfo, IVerticalRulerInfoExtension {}\n" +
			"class Z implements IChangeRulerColumn {}\n" +
			"class Y extends Z implements IRevisionRulerColumn {}\n" +
			"public final class X extends Y implements IVerticalRulerColumn, IVerticalRulerInfo, IVerticalRulerInfoExtension {}\n"
		},
		// compiler options
		null /* no class libraries */,
		customOptions /* custom options */,
		// compiler results
		"----------\n" +
		"1. ERROR in X.java (at line 8)\n" +
		"	public final class X extends Y implements IVerticalRulerColumn, IVerticalRulerInfo, IVerticalRulerInfoExtension {}\n" +
		"	                                          ^^^^^^^^^^^^^^^^^^^^\n" +
		"Redundant superinterface IVerticalRulerColumn for the type X, already defined by IRevisionRulerColumn\n" +
		"----------\n" +
		"2. ERROR in X.java (at line 8)\n" +
		"	public final class X extends Y implements IVerticalRulerColumn, IVerticalRulerInfo, IVerticalRulerInfoExtension {}\n" +
		"	                                                                ^^^^^^^^^^^^^^^^^^\n" +
		"Redundant superinterface IVerticalRulerInfo for the type X, already defined by IRevisionRulerColumn\n" +
		"----------\n" +
		"3. ERROR in X.java (at line 8)\n" +
		"	public final class X extends Y implements IVerticalRulerColumn, IVerticalRulerInfo, IVerticalRulerInfoExtension {}\n" +
		"	                                                                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^\n" +
		"Redundant superinterface IVerticalRulerInfoExtension for the type X, already defined by IRevisionRulerColumn\n" +
		"----------\n",
		JavacTestOptions.SKIP);
}
// https://bugs.eclipse.org/bugs/show_bug.cgi?id=320911 (variation)
public void test017() {
	Map customOptions = getCompilerOptions();
	customOptions.put(CompilerOptions.OPTION_ReportRedundantSuperinterface,  CompilerOptions.ERROR);
	runNegativeTest(
		// test directory preparation
		true /* flush output directory */,
		new String[] { /* test files */
			"X.java",
			"interface IVerticalRulerColumn {}\n" +
			"interface IVerticalRulerInfo {}\n" +
			"interface IVerticalRulerInfoExtension {}\n" +
			"interface IChangeRulerColumn extends IVerticalRulerColumn, IVerticalRulerInfoExtension {}\n" +
			"interface IRevisionRulerColumn extends IVerticalRulerColumn, IVerticalRulerInfo, IVerticalRulerInfoExtension {}\n" +
			"class Z implements IRevisionRulerColumn{}\n" +
			"class C extends Z {}\n" +
			"class B extends C implements IChangeRulerColumn {}\n" +
			"class H extends B {}\n" +
			"class Y extends H  {}\n" +
			"public final class X extends Y implements IVerticalRulerColumn, IVerticalRulerInfo, IVerticalRulerInfoExtension {}\n"
		},
		// compiler options
		null /* no class libraries */,
		customOptions /* custom options */,
		// compiler results
		"----------\n" +
		"1. ERROR in X.java (at line 11)\n" +
		"	public final class X extends Y implements IVerticalRulerColumn, IVerticalRulerInfo, IVerticalRulerInfoExtension {}\n" +
		"	                                          ^^^^^^^^^^^^^^^^^^^^\n" +
		"Redundant superinterface IVerticalRulerColumn for the type X, already defined by IRevisionRulerColumn\n" +
		"----------\n" +
		"2. ERROR in X.java (at line 11)\n" +
		"	public final class X extends Y implements IVerticalRulerColumn, IVerticalRulerInfo, IVerticalRulerInfoExtension {}\n" +
		"	                                                                ^^^^^^^^^^^^^^^^^^\n" +
		"Redundant superinterface IVerticalRulerInfo for the type X, already defined by IRevisionRulerColumn\n" +
		"----------\n" +
		"3. ERROR in X.java (at line 11)\n" +
		"	public final class X extends Y implements IVerticalRulerColumn, IVerticalRulerInfo, IVerticalRulerInfoExtension {}\n" +
		"	                                                                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^\n" +
		"Redundant superinterface IVerticalRulerInfoExtension for the type X, already defined by IRevisionRulerColumn\n" +
		"----------\n",
		JavacTestOptions.SKIP);
}
// https://bugs.eclipse.org/bugs/show_bug.cgi?id=320911 (variation)
public void test018() {
	Map customOptions = getCompilerOptions();
	customOptions.put(CompilerOptions.OPTION_ReportRedundantSuperinterface,  CompilerOptions.ERROR);
	runNegativeTest(
		// test directory preparation
		true /* flush output directory */,
		new String[] { /* test files */
			"X.java",
			"interface IVerticalRulerColumn {}\n" +
			"interface IVerticalRulerInfo {}\n" +
			"interface IVerticalRulerInfoExtension {}\n" +
			"interface IChangeRulerColumn extends IVerticalRulerColumn, IVerticalRulerInfoExtension {}\n" +
			"interface IRevisionRulerColumn extends IVerticalRulerColumn, IVerticalRulerInfo, IVerticalRulerInfoExtension {}\n" +
			"class Z implements IVerticalRulerInfoExtension {}\n" +
			"class C extends Z {}\n" +
			"class B extends C implements IChangeRulerColumn {}\n" +
			"class H extends B implements IVerticalRulerInfo {}\n" +
			"class Y extends H  implements IVerticalRulerColumn {}\n" +
			"public final class X extends Y implements IVerticalRulerColumn, IVerticalRulerInfo, IVerticalRulerInfoExtension {}\n"
		},
		// compiler options
		null /* no class libraries */,
		customOptions /* custom options */,
		// compiler results
		"----------\n" +
		"1. ERROR in X.java (at line 10)\n" +
		"	class Y extends H  implements IVerticalRulerColumn {}\n" +
		"	                              ^^^^^^^^^^^^^^^^^^^^\n" +
		"Redundant superinterface IVerticalRulerColumn for the type Y, already defined by IChangeRulerColumn\n" +
		"----------\n" +
		"2. ERROR in X.java (at line 11)\n" +
		"	public final class X extends Y implements IVerticalRulerColumn, IVerticalRulerInfo, IVerticalRulerInfoExtension {}\n" +
		"	                                          ^^^^^^^^^^^^^^^^^^^^\n" +
		"Redundant superinterface IVerticalRulerColumn for the type X, already defined by Y\n" +
		"----------\n" +
		"3. ERROR in X.java (at line 11)\n" +
		"	public final class X extends Y implements IVerticalRulerColumn, IVerticalRulerInfo, IVerticalRulerInfoExtension {}\n" +
		"	                                                                ^^^^^^^^^^^^^^^^^^\n" +
		"Redundant superinterface IVerticalRulerInfo for the type X, already defined by H\n" +
		"----------\n" +
		"4. ERROR in X.java (at line 11)\n" +
		"	public final class X extends Y implements IVerticalRulerColumn, IVerticalRulerInfo, IVerticalRulerInfoExtension {}\n" +
		"	                                                                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^\n" +
		"Redundant superinterface IVerticalRulerInfoExtension for the type X, already defined by Z\n" +
		"----------\n",
		JavacTestOptions.SKIP);
}
}