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eclipse / jdt / eclipse.jdt.core / fdc3c39123c572ae3729fcb6ba749e1f803a05da / . / org.eclipse.jdt.core.tests.compiler / src / org / eclipse / jdt / core / tests / compiler / regression / VarargsTest.java
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/*******************************************************************************
* Copyright (c) 2005 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.jdt.core.tests.compiler.regression;
import junit.framework.Test;
public class VarargsTest extends AbstractComparableTest {
public VarargsTest(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[] { 30 };
// TESTS_RANGE = new int[] { 11, -1 };
}
public static Test suite() {
Test suite = buildTestSuite(testClass());
TESTS_COUNTERS.put(testClass().getName(), new Integer(suite.countTestCases()));
return suite;
}
public static Class testClass() {
return VarargsTest.class;
}
public void test001() {
this.runConformTest(
new String[] {
"X.java",
"public class X {\n" +
" public static void main(String[] s) {\n" +
" System.out.print('<');\n" +
" Y y = new Y();\n" +
" y = new Y(null);\n" +
" y = new Y(1);\n" +
" y = new Y(1, 2, (byte) 3, 4);\n" +
" y = new Y(new int[] {1, 2, 3, 4 });\n" +
" \n" +
" Y.count();\n" +
" Y.count(null);\n" +
" Y.count(1);\n" +
" Y.count(1, 2, (byte) 3, 4);\n" +
" Y.count(new int[] {1, 2, 3, 4 });\n" +
" System.out.print('>');\n" +
" }\n" +
"}\n" +
"class Y {\n" +
" public Y(int ... values) {\n" +
" int result = 0;\n" +
" for (int i = 0, l = values == null ? 0 : values.length; i < l; i++)\n" +
" result += values[i];\n" +
" System.out.print(result);\n" +
" System.out.print(' ');\n" +
" }\n" +
" public static void count(int ... values) {\n" +
" int result = 0;\n" +
" for (int i = 0, l = values == null ? 0 : values.length; i < l; i++)\n" +
" result += values[i];\n" +
" System.out.print(result);\n" +
" System.out.print(' ');\n" +
" }\n" +
"}\n",
},
"<0 0 1 10 10 0 0 1 10 10 >");
this.runConformTest(
new String[] {
"X.java",
"public class X {\n" +
" public static void main(String[] s) {\n" +
" System.out.print('<');\n" +
" Y y = new Y();\n" +
" y = new Y(null);\n" +
" y = new Y(1);\n" +
" y = new Y(1, 2, (byte) 3, 4);\n" +
" y = new Y(new int[] {1, 2, 3, 4 });\n" +
" \n" +
" Y.count();\n" +
" Y.count(null);\n" +
" Y.count(1);\n" +
" Y.count(1, 2, (byte) 3, 4);\n" +
" Y.count(new int[] {1, 2, 3, 4 });\n" +
" System.out.print('>');\n" +
" }\n" +
"}\n",
},
"<0 0 1 10 10 0 0 1 10 10 >",
null,
false,
null);
}
public void test002() {
this.runConformTest(
new String[] {
"X.java",
"public class X {\n" +
" public static void main(String[] s) {\n" +
" System.out.print('<');\n" +
" Y y = new Y();\n" +
" y = new Y(null);\n" +
" y = new Y(1);\n" +
" y = new Y(1, 2, (byte) 3, 4);\n" +
" y = new Y(new int[] {1, 2, 3, 4 });\n" +
" System.out.print('>');\n" +
" }\n" +
"}\n" +
"class Y extends Z {\n" +
" public Y(int ... values) { super(values); }\n" +
"}\n" +
"class Z {\n" +
" public Z(int ... values) {\n" +
" int result = 0;\n" +
" for (int i = 0, l = values == null ? 0 : values.length; i < l; i++)\n" +
" result += values[i];\n" +
" System.out.print(result);\n" +
" System.out.print(' ');\n" +
" }\n" +
"}\n",
},
"<0 0 1 10 10 >");
this.runConformTest(
new String[] {
"X.java",
"public class X {\n" +
" public static void main(String[] s) {\n" +
" System.out.print('<');\n" +
" Y y = new Y();\n" +
" y = new Y(null);\n" +
" y = new Y(1);\n" +
" y = new Y(1, 2, (byte) 3, 4);\n" +
" y = new Y(new int[] {1, 2, 3, 4 });\n" +
" System.out.print('>');\n" +
" }\n" +
"}\n",
},
"<0 0 1 10 10 >",
null,
false,
null);
}
public void test003() {
this.runConformTest(
new String[] {
"X.java",
"public class X {\n" +
" public static void main(String[] s) {\n" +
" System.out.print('<');\n" +
" Y.count();\n" +
" Y.count((int[]) null);\n" +
" Y.count((int[][]) null);\n" +
" Y.count(new int[] {1});\n" +
" Y.count(new int[] {1, 2}, new int[] {3, 4});\n" +
" Y.count(new int[][] {new int[] {1, 2, 3}, new int[] {4}});\n" +
" System.out.print('>');\n" +
" }\n" +
"}\n" +
"class Y {\n" +
" public static int count(int[] values) {\n" +
" int result = 0;\n" +
" for (int i = 0, l = values == null ? 0 : values.length; i < l; i++)\n" +
" result += values[i];\n" +
" System.out.print(' ');\n" +
" System.out.print(result);\n" +
" return result;\n" +
" }\n" +
" public static void count(int[] ... values) {\n" +
" int result = 0;\n" +
" for (int i = 0, l = values == null ? 0 : values.length; i < l; i++)\n" +
" result += count(values[i]);\n" +
" System.out.print('=');\n" +
" System.out.print(result);\n" +
" }\n" +
"}\n",
},
"<=0 0=0 1 3 7=10 6 4=10>");
this.runConformTest(
new String[] {
"X.java",
"public class X {\n" +
" public static void main(String[] s) {\n" +
" System.out.print('<');\n" +
" Y.count();\n" +
" Y.count((int[]) null);\n" +
" Y.count((int[][]) null);\n" +
" Y.count(new int[] {1});\n" +
" Y.count(new int[] {1, 2}, new int[] {3, 4});\n" +
" Y.count(new int[][] {new int[] {1, 2, 3}, new int[] {4}});\n" +
" System.out.print('>');\n" +
" }\n" +
"}\n"
},
"<=0 0=0 1 3 7=10 6 4=10>",
null,
false,
null);
}
public void test004() {
this.runConformTest(
new String[] {
"X.java",
"public class X {\n" +
" public static void main(String[] s) {\n" +
" System.out.print('<');\n" +
" Y.count(0);\n" +
" Y.count(-1, (int[]) null);\n" +
" Y.count(-2, (int[][]) null);\n" +
" Y.count(1);\n" +
" Y.count(2, new int[] {1});\n" +
" Y.count(3, new int[] {1}, new int[] {2, 3}, new int[] {4});\n" +
" Y.count((byte) 4, new int[][] {new int[] {1}, new int[] {2, 3}, new int[] {4}});\n" +
" System.out.print('>');\n" +
" }\n" +
"}\n" +
"class Y {\n" +
" public static int count(int j, int[] values) {\n" +
" int result = j;\n" +
" System.out.print(' ');\n" +
" System.out.print('[');\n" +
" for (int i = 0, l = values == null ? 0 : values.length; i < l; i++)\n" +
" result += values[i];\n" +
" System.out.print(result);\n" +
" System.out.print(']');\n" +
" return result;\n" +
" }\n" +
" public static void count(int j, int[] ... values) {\n" +
" int result = j;\n" +
" System.out.print(' ');\n" +
" System.out.print(result);\n" +
" System.out.print(':');\n" +
" for (int i = 0, l = values == null ? 0 : values.length; i < l; i++)\n" +
" result += count(j, values[i]);\n" +
" System.out.print('=');\n" +
" System.out.print(result);\n" +
" }\n" +
"}\n",
},
"< 0:=0 [-1] -2:=-2 1:=1 [3] 3: [4] [8] [7]=22 4: [5] [9] [8]=26>");
this.runConformTest(
new String[] {
"X.java",
"public class X {\n" +
" public static void main(String[] s) {\n" +
" System.out.print('<');\n" +
" Y.count(0);\n" +
" Y.count(-1, (int[]) null);\n" +
" Y.count(-2, (int[][]) null);\n" +
" Y.count(1);\n" +
" Y.count(2, new int[] {1});\n" +
" Y.count(3, new int[] {1}, new int[] {2, 3}, new int[] {4});\n" +
" Y.count((byte) 4, new int[][] {new int[] {1}, new int[] {2, 3}, new int[] {4}});\n" +
" System.out.print('>');\n" +
" }\n" +
"}\n"
},
"< 0:=0 [-1] -2:=-2 1:=1 [3] 3: [4] [8] [7]=22 4: [5] [9] [8]=26>",
null,
false,
null);
}
public void test005() {
this.runConformTest(
new String[] {
"X.java",
"public class X {\n" +
" public static void main(String[] s) {\n" +
" System.out.print('<');\n" +
" Y.print();\n" +
" Y.print(new Integer(1));\n" +
" Y.print(new Integer(1), new Byte((byte) 3), new Integer(7));\n" +
" Y.print(new Integer[] {new Integer(11) });\n" +
" System.out.print('>');\n" +
" }\n" +
"}\n" +
"class Y {\n" +
" public static void print(Number ... values) {\n" +
" for (int i = 0, l = values.length; i < l; i++) {\n" +
" System.out.print(' ');\n" +
" System.out.print(values[i]);\n" +
" }\n" +
" System.out.print(',');\n" +
" }\n" +
"}\n",
},
"<, 1, 1 3 7, 11,>");
this.runConformTest(
new String[] {
"X.java",
"public class X {\n" +
" public static void main(String[] s) {\n" +
" System.out.print('<');\n" +
" Y.print();\n" +
" Y.print(new Integer(1));\n" +
" Y.print(new Integer(1), new Byte((byte) 3), new Integer(7));\n" +
" Y.print(new Integer[] {new Integer(11) });\n" +
" System.out.print('>');\n" +
" }\n" +
"}\n",
},
"<, 1, 1 3 7, 11,>",
null,
false,
null);
}
public void test006() { // 70056
this.runConformTest(
new String[] {
"X.java",
"public class X {\n" +
" public static void main(String[] s) {\n" +
" String[] T_NAMES = new String[] {\"foo\"};\n" +
" String error = \"error\";\n" +
" Y.format(\"E_UNSUPPORTED_CONV\", new Integer(0));\n" +
" Y.format(\"E_SAVE\", T_NAMES[0], error);\n" +
" }\n" +
"}\n" +
"class Y {\n" +
" public static String format(String key) { return null; }\n" +
" public static String format(String key, Object ... args) { return null; }\n" +
"}\n",
},
"");
}
public void test007() { // array dimension test compatibility with Object
this.runNegativeTest(
new String[] {
"X.java",
"public class X {\n" +
" public static void main(String[] s) {\n" +
" Y.byte2(null);\n" + // warning: inexact argument type for last parameter
" Y.byte2((byte) 1);\n" + // error
" Y.byte2(new byte[] {});\n" +
" Y.byte2(new byte[][] {});\n" +
" Y.byte2(new byte[][][] {});\n" + // error
"\n" +
" Y.object(null);\n" + // warning
" Y.object((byte) 1);\n" +
" Y.object(new byte[] {});\n" +
" Y.object(new byte[][] {});\n" + // warning
" Y.object(new byte[][][] {});\n" + // warning
"\n" +
" Y.object(new String());\n" +
" Y.object(new String[] {});\n" + // warning
" Y.object(new String[][] {});\n" + // warning
"\n" +
" Y.object2(null);\n" + // warning
" Y.object2((byte) 1);\n" + // error
" Y.object2(new byte[] {});\n" + // error
" Y.object2(new byte[][] {});\n" +
" Y.object2(new byte[][][] {});\n" + // warning
"\n" +
" Y.object2(new String());\n" + // error
" Y.object2(new String[] {});\n" +
" Y.object2(new String[][] {});\n" + // warning
"\n" +
" Y.string(null);\n" + // warning
" Y.string(new String());\n" +
" Y.string(new String[] {});\n" +
" Y.string(new String[][] {});\n" + // error
"\n" +
" Y.string(new Object());\n" + // error
" Y.string(new Object[] {});\n" + // error
" Y.string(new Object[][] {});\n" + // error
" }\n" +
"}\n" +
"class Y {\n" +
" public static void byte2(byte[] ... values) {}\n" +
" public static void object(Object ... values) {}\n" +
" public static void object2(Object[] ... values) {}\n" +
" public static void string(String ... values) {}\n" +
"}\n",
},
"----------\n" +
"1. WARNING in X.java (at line 3)\n" +
" Y.byte2(null);\n" +
" ^^^^^^^^^^^^^\n" +
"Varargs argument null should be cast to byte[][] when passed to the method byte2(byte[]...) from type Y\n" +
"----------\n" +
"2. ERROR in X.java (at line 4)\n" +
" Y.byte2((byte) 1);\n" +
" ^^^^^\n" +
"The method byte2(byte[]...) in the type Y is not applicable for the arguments (byte)\n" +
"----------\n" +
"3. ERROR in X.java (at line 7)\n" +
" Y.byte2(new byte[][][] {});\n" +
" ^^^^^\n" +
"The method byte2(byte[]...) in the type Y is not applicable for the arguments (byte[][][])\n" +
"----------\n" +
"4. WARNING in X.java (at line 9)\n" +
" Y.object(null);\n" +
" ^^^^^^^^^^^^^^\n" +
"Varargs argument null should be cast to Object[] when passed to the method object(Object...) from type Y\n" +
"----------\n" +
"5. WARNING in X.java (at line 12)\n" +
" Y.object(new byte[][] {});\n" +
" ^^^^^^^^^^^^^^^^^^^^^^^^^\n" +
"Varargs argument byte[][] should be cast to Object[] when passed to the method object(Object...) from type Y\n" +
"----------\n" +
"6. WARNING in X.java (at line 13)\n" +
" Y.object(new byte[][][] {});\n" +
" ^^^^^^^^^^^^^^^^^^^^^^^^^^^\n" +
"Varargs argument byte[][][] should be cast to Object[] when passed to the method object(Object...) from type Y\n" +
"----------\n" +
"7. WARNING in X.java (at line 16)\n" +
" Y.object(new String[] {});\n" +
" ^^^^^^^^^^^^^^^^^^^^^^^^^\n" +
"Varargs argument String[] should be cast to Object[] when passed to the method object(Object...) from type Y\n" +
"----------\n" +
"8. WARNING in X.java (at line 17)\n" +
" Y.object(new String[][] {});\n" +
" ^^^^^^^^^^^^^^^^^^^^^^^^^^^\n" +
"Varargs argument String[][] should be cast to Object[] when passed to the method object(Object...) from type Y\n" +
"----------\n" +
"9. WARNING in X.java (at line 19)\n" +
" Y.object2(null);\n" +
" ^^^^^^^^^^^^^^^\n" +
"Varargs argument null should be cast to Object[][] when passed to the method object2(Object[]...) from type Y\n" +
"----------\n" +
"10. ERROR in X.java (at line 20)\n" +
" Y.object2((byte) 1);\n" +
" ^^^^^^^\n" +
"The method object2(Object[]...) in the type Y is not applicable for the arguments (byte)\n" +
"----------\n" +
"11. ERROR in X.java (at line 21)\n" +
" Y.object2(new byte[] {});\n" +
" ^^^^^^^\n" +
"The method object2(Object[]...) in the type Y is not applicable for the arguments (byte[])\n" +
"----------\n" +
"12. WARNING in X.java (at line 23)\n" +
" Y.object2(new byte[][][] {});\n" +
" ^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n" +
"Varargs argument byte[][][] should be cast to Object[][] when passed to the method object2(Object[]...) from type Y\n" +
"----------\n" +
"13. ERROR in X.java (at line 25)\n" +
" Y.object2(new String());\n" +
" ^^^^^^^\n" +
"The method object2(Object[]...) in the type Y is not applicable for the arguments (String)\n" +
"----------\n" +
"14. WARNING in X.java (at line 27)\n" +
" Y.object2(new String[][] {});\n" +
" ^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n" +
"Varargs argument String[][] should be cast to Object[][] when passed to the method object2(Object[]...) from type Y\n" +
"----------\n" +
"15. WARNING in X.java (at line 29)\n" +
" Y.string(null);\n" +
" ^^^^^^^^^^^^^^\n" +
"Varargs argument null should be cast to String[] when passed to the method string(String...) from type Y\n" +
"----------\n" +
"16. ERROR in X.java (at line 32)\n" +
" Y.string(new String[][] {});\n" +
" ^^^^^^\n" +
"The method string(String...) in the type Y is not applicable for the arguments (String[][])\n" +
"----------\n" +
"17. ERROR in X.java (at line 34)\n" +
" Y.string(new Object());\n" +
" ^^^^^^\n" +
"The method string(String...) in the type Y is not applicable for the arguments (Object)\n" +
"----------\n" +
"18. ERROR in X.java (at line 35)\n" +
" Y.string(new Object[] {});\n" +
" ^^^^^^\n" +
"The method string(String...) in the type Y is not applicable for the arguments (Object[])\n" +
"----------\n" +
"19. ERROR in X.java (at line 36)\n" +
" Y.string(new Object[][] {});\n" +
" ^^^^^^\n" +
"The method string(String...) in the type Y is not applicable for the arguments (Object[][])\n" +
"----------\n");
}
public void test008() {
this.runNegativeTest(
new String[] {
"X.java",
"public class X {\n" +
" public static void main(String[] s) {\n" +
" Y y = new Y(null);\n" +
" y = new Y(true, null);\n" + // null warning
" y = new Y('i', null);\n" + // null warning
" }\n" +
"}\n" +
"class Y {\n" +
" public Y(int ... values) {}\n" +
" public Y(boolean b, Object ... values) {}\n" +
" public Y(char c, int[] ... values) {}\n" +
"}\n",
},
"----------\n" +
"1. WARNING in X.java (at line 4)\n" +
" y = new Y(true, null);\n" +
" ^^^^^^^^^^^^^^^^^\n" +
"Varargs argument null should be cast to Object[] when passed to the constructor Y(boolean, Object...)\n" +
"----------\n" +
"2. WARNING in X.java (at line 5)\n" +
" y = new Y(\'i\', null);\n" +
" ^^^^^^^^^^^^^^^^\n" +
"Varargs argument null should be cast to int[][] when passed to the constructor Y(char, int[]...)\n" +
"----------\n");
this.runNegativeTest(
new String[] {
"X.java",
"public class X {\n" +
" public static void main(String[] s) {\n" +
" Y y = new Y(null);\n" +
" y = new Y(true, null);\n" + // null warning
" y = new Y('i', null);\n" + // null warning
" }\n" +
"}\n" +
"class Y extends Z {\n" +
" public Y(int ... values) { super(values); }\n" +
" public Y(boolean b, Object ... values) { super(b, values); }\n" +
" public Y(char c, int[] ... values) {}\n" +
"}\n" +
"class Z {\n" +
" public Z(int ... values) {}\n" +
" public Z(boolean b, Object ... values) {}\n" +
" public Z(char c, int[] ... values) {}\n" +
"}\n",
},
"----------\n" +
"1. WARNING in X.java (at line 4)\n" +
" y = new Y(true, null);\n" +
" ^^^^^^^^^^^^^^^^^\n" +
"Varargs argument null should be cast to Object[] when passed to the constructor Y(boolean, Object...)\n" +
"----------\n" +
"2. WARNING in X.java (at line 5)\n" +
" y = new Y(\'i\', null);\n" +
" ^^^^^^^^^^^^^^^^\n" +
"Varargs argument null should be cast to int[][] when passed to the constructor Y(char, int[]...)\n" +
"----------\n");
}
public void test009() {
this.runConformTest(
new String[] {
"X.java",
"public class X {\n" +
" public static void main(String[] s) {\n" +
" System.out.print('<');\n" +
" Y.count(null);\n" +
" Y.count(1);\n" +
" Y.count(1, 2);\n" +
"\n" +
" Z.count(1L, 1);\n" + // only choice is Z.count(long, int)
" Z.count(1, 1);\n" + // chooses Z.count(long, long) over Z.count(int,int...)
" Z.count(1, null);\n" + // only choice is Z.count(int,int...)
" Z.count2(1, null);\n" + // better choice is Z.count(int,int[])
" Z.count2(1L, null);\n" + // better choice is Z.count(long,int...)
" System.out.print('>');\n" +
" }\n" +
"}\n" +
"class Y {\n" +
" public static void count(int values) { System.out.print('1'); }\n" +
" public static void count(int ... values) { System.out.print('2'); }\n" +
"}\n" +
"class Z {\n" +
" public static void count(long l, long values) { System.out.print('3'); }\n" +
" public static void count(int i, int ... values) { System.out.print('4'); }\n" +
" public static void count2(int i, int values) { System.out.print('5'); }\n" +
" public static void count2(long l, int ... values) { System.out.print('6'); }\n" +
"}\n",
},
"<21233466>");
this.runConformTest(
new String[] {
"X.java",
"public class X {\n" +
" public static void main(String[] s) {\n" +
" System.out.print('<');\n" +
" Y.test((Object[]) null);\n" + // cast to avoid null warning
" Y.test(null, null);\n" +
" Y.test(null, null, null);\n" +
" System.out.print('>');\n" +
" }\n" +
"}\n" +
"class Y {\n" +
" public static void test(Object o, Object o2) { System.out.print('1'); }\n" +
" public static void test(Object ... values) { System.out.print('2'); }\n" +
"}\n",
},
"<212>");
}
public void test010() {
// according to spec this should find count(Object) since it should consider count(Object...) as count(Object[]) until all fixed arity methods are ruled out
this.runConformTest(
new String[] {
"X.java",
"public class X {\n" +
" public static void main(String[] s) {\n" +
" System.out.print('<');\n" +
" Y.count((Object) new Integer(1));\n" +
" Y.count(new Integer(1));\n" +
"\n" +
" Y.count((Object) null);\n" +
" Y.count((Object[]) null);\n" +
" System.out.print('>');\n" +
" }\n" +
"}\n" +
"class Y {\n" +
" public static void count(Object values) { System.out.print('1'); }\n" +
" public static void count(Object ... values) { System.out.print('2'); }\n" +
"}\n",
},
"<1112>");
// according to spec this should find count(Object[]) since it should consider count(Object[]...) as count(Object[][]) until all fixed arity methods are ruled out
this.runConformTest(
new String[] {
"X.java",
"public class X {\n" +
" public static void main(String[] s) {\n" +
" System.out.print('<');\n" +
" Y.count(new Object[] {new Integer(1)});\n" +
" Y.count(new Integer[] {new Integer(1)});\n" +
"\n" +
" Y.count((Object[]) null);\n" +
" Y.count((Object[][]) null);\n" +
" System.out.print('>');\n" +
" }\n" +
"}\n" +
"class Y {\n" +
" public static void count(Object[] values) { System.out.print('1'); }\n" +
" public static void count(Object[] ... values) { System.out.print('2'); }\n" +
"}\n",
},
"<1112>");
this.runNegativeTest(
new String[] {
"X.java",
"public class X {\n" +
" public static void main(String[] s) {\n" +
" Y.string(null);\n" +
" Y.string2(null);\n" +
" Y.int2(null);\n" +
" }\n" +
"}\n" +
"class Y {\n" +
" public static void string(String values) { System.out.print('1'); }\n" +
" public static void string(String ... values) { System.out.print('2'); }\n" +
" public static void string2(String[] values) { System.out.print('1'); }\n" +
" public static void string2(String[] ... values) { System.out.print('2'); }\n" +
" public static void int2(int[] values) { System.out.print('1'); }\n" +
" public static void int2(int[] ... values) { System.out.print('2'); }\n" +
"}\n",
},
"----------\n" +
"1. ERROR in X.java (at line 3)\n" +
" Y.string(null);\n" +
" ^^^^^^\n" +
"The method string(String) is ambiguous for the type Y\n" +
"----------\n" +
"2. ERROR in X.java (at line 4)\n" +
" Y.string2(null);\n" +
" ^^^^^^^\n" +
"The method string2(String[]) is ambiguous for the type Y\n" +
"----------\n" +
"3. ERROR in X.java (at line 5)\n" +
" Y.int2(null);\n" +
" ^^^^\n" +
"The method int2(int[]) is ambiguous for the type Y\n" +
"----------\n");
}
// https://bugs.eclipse.org/bugs/show_bug.cgi?id=83379
public void test011() {
this.runNegativeTest(
new String[] {
"X.java",
"public class X { void count(int ... values) {} }\n" +
"class Y extends X { void count(int[] values) {} }\n" +
"class Z extends Y { void count(int... values) {} }\n"
},
"----------\n" +
"1. WARNING in X.java (at line 2)\n" +
" class Y extends X { void count(int[] values) {} }\n" +
" ^^^^^^^^^^^^^^^^^^^\n" +
"The method count(int[]) of type Y should be tagged with @Override since it actually overrides a superclass method\n" +
"----------\n" +
"2. WARNING in X.java (at line 2)\n" +
" class Y extends X { void count(int[] values) {} }\n" +
" ^^^^^^^^^^^^^^^^^^^\n" +
"Varargs methods should only override other varargs methods unlike Y.count(int[]) and X.count(int...)\n" +
"----------\n" +
"3. WARNING in X.java (at line 3)\n" +
" class Z extends Y { void count(int... values) {} }\n" +
" ^^^^^^^^^^^^^^^^^^^^\n" +
"The method count(int...) of type Z should be tagged with @Override since it actually overrides a superclass method\n" +
"----------\n" +
"4. WARNING in X.java (at line 3)\n" +
" class Z extends Y { void count(int... values) {} }\n" +
" ^^^^^^^^^^^^^^^^^^^^\n" +
"Varargs methods should only override other varargs methods unlike Z.count(int...) and Y.count(int[])\n" +
"----------\n");
}
// https://bugs.eclipse.org/bugs/show_bug.cgi?id=77084
public void test012() {
this.runConformTest(
new String[] {
"X.java",
"public class X {\n" +
" public static void main (String ... args) {\n" +
" for (String a:args) {\n" +
" System.out.println(a);\n" +
" }\n" +
" }\n" +
"}\n" +
"\n"
}
);
}
public void test013() { // check behaviour of Scope.mostSpecificMethodBinding()
this.runConformTest(
new String[] {
"X.java",
"public class X {\n" +
" public static void main(String[] s) {\n" +
" Y.count(1, 1);\n" +
" }\n" +
"}\n" +
"class Y {\n" +
" public static void count(long i, int j) { System.out.print(1); }\n" +
" public static void count(int ... values) { System.out.print(2); }\n" +
"}\n",
},
"1");
}
public void test014() { // check behaviour of Scope.mostSpecificMethodBinding()
this.runConformTest(
new String[] {
"X.java",
"public class X {\n" +
" public static void main(String[] s) {\n" +
" Y.count(new int[0], 1);\n" +
" Y.count(new int[0], 1, 1);\n" +
" }\n" +
"}\n" +
"class Y {\n" +
" public static void count(int[] array, int ... values) { System.out.print(1); }\n" +
" public static void count(Object o, int ... values) { System.out.print(2); }\n" +
"}\n",
},
"11"
);
}
public void test015() { // check behaviour of Scope.mostSpecificMethodBinding()
this.runConformTest(
new String[] {
"X.java",
"public class X {\n" +
" public static void main(String[] s) {\n" +
" Y.count(new int[0]);\n" + // for some reason this is not ambiguous
" }\n" +
"}\n" +
"class Y {\n" +
" public static void count(int[] array, int ... values) { System.out.print(1); }\n" +
" public static void count(int[] array, int[] ... values) { System.out.print(2); }\n" +
"}\n",
},
"1"
);
}
public void test016() { // check behaviour of Scope.mostSpecificMethodBinding()
this.runNegativeTest( // but this call is ambiguous
new String[] {
"X.java",
"public class X {\n" +
" public static void main(String[] s) {\n" +
" Y.count(new int[0]);\n" + // reference to count is ambiguous, both method count(int[],int...) in Y and method count(int[],int[][]...) in Y match
" Y.count(new int[0], null);\n" + // reference to count is ambiguous, both method count(int[],int...) in Y and method count(int[],int[]...) in Y match
" }\n" +
"}\n" +
"class Y {\n" +
" public static void count(int[] array, int ... values) { System.out.print(0); }\n" +
" public static void count(int[] array, int[][] ... values) { System.out.print(1); }\n" +
"}\n",
},
"----------\n" +
"1. ERROR in X.java (at line 3)\n" +
" Y.count(new int[0]);\n" +
" ^^^^^\n" +
"The method count(int[], int[]) is ambiguous for the type Y\n" +
"----------\n" +
"2. ERROR in X.java (at line 4)\n" +
" Y.count(new int[0], null);\n" +
" ^^^^^\n" +
"The method count(int[], int[]) is ambiguous for the type Y\n" +
"----------\n"
);
}
public void test017() { // check behaviour of Scope.mostSpecificMethodBinding()
this.runNegativeTest(
new String[] {
"X.java",
"public class X {\n" +
" public static void main(String[] s) {\n" +
" Y.count(new int[0], 1);\n" + // reference to count is ambiguous, both method count(int[],int...) in Y and method count(int[],int,int...) in Y match
" Y.count(new int[0], 1, 1);\n" + // reference to count is ambiguous, both method count(int[],int...) in Y and method count(int[],int,int...) in Y match
" Y.count(new int[0], 1, 1, 1);\n" + // reference to count is ambiguous, both method count(int[],int...) in Y and method count(int[],int,int...) in Y match
" }\n" +
"}\n" +
"class Y {\n" +
" public static void count(int[] array, int ... values) {}\n" +
" public static void count(int[] array, int[] ... values) {}\n" +
" public static void count(int[] array, int i, int ... values) {}\n" +
"}\n",
},
"----------\n" +
"1. ERROR in X.java (at line 3)\n" +
" Y.count(new int[0], 1);\n" +
" ^^^^^\n" +
"The method count(int[], int[]) is ambiguous for the type Y\n" +
"----------\n" +
"2. ERROR in X.java (at line 4)\n" +
" Y.count(new int[0], 1, 1);\n" +
" ^^^^^\n" +
"The method count(int[], int[]) is ambiguous for the type Y\n" +
"----------\n" +
"3. ERROR in X.java (at line 5)\n" +
" Y.count(new int[0], 1, 1, 1);\n" +
" ^^^^^\n" +
"The method count(int[], int[]) is ambiguous for the type Y\n" +
"----------\n"
);
}
// https://bugs.eclipse.org/bugs/show_bug.cgi?id=81590
public void test018() {
this.runConformTest(
new String[] {
"X.java",
"import java.util.*;\n" +
"public class X {\n" +
" public static void main(String[] args) {\n" +
" String[][] x = {{\"X\"}, {\"Y\"}};\n" +
" List l = Arrays.asList(x);\n" +
" System.out.println(l.size() + \" \" + l.get(0).getClass().getName());\n" +
" }\n" +
"}\n",
},
"2 [Ljava.lang.String;");
}
// https://bugs.eclipse.org/bugs/show_bug.cgi?id=81590 - variation
public void test019() {
this.runConformTest(
new String[] {
"X.java",
"import java.util.*;\n" +
"public class X {\n" +
" public static void main(String[] args) {\n" +
" String[][] x = {{\"X\"}, {\"Y\"}};\n" +
" System.out.println(asList(x[0], x[1]).get(1).getClass().getName());\n" +
" }\n" +
" static <U> List<U> asList(U u1, U... us) {\n" +
" List<U> result = new ArrayList<U>();\n" +
" result.add(u1);\n" +
" result.add(us[0]);\n" +
" return result;\n" +
" }\n" +
"}\n",
},
"java.lang.String");
}
// https://bugs.eclipse.org/bugs/show_bug.cgi?id=81590 - variation
public void test020() {
this.runConformTest(
new String[] {
"X.java",
"import java.util.*;\n" +
"public class X {\n" +
" public static void main(String[] args) {\n" +
" String[][] x = {{\"X\"}, {\"Y\"}};\n" +
" System.out.println(asList(x[0], x).get(1).getClass().getName());\n" +
" }\n" +
" static <U> List<U> asList(U u1, U... us) {\n" +
" List<U> result = new ArrayList<U>();\n" +
" result.add(u1);\n" +
" result.add(us[0]);\n" +
" return result;\n" +
" }\n" +
"}\n",
},
"[Ljava.lang.String;");
}
// https://bugs.eclipse.org/bugs/show_bug.cgi?id=81911
public void test021() {
this.runConformTest(
new String[] {
"X.java",
"import java.util.ArrayList;\n" +
"import java.util.Arrays;\n" +
"\n" +
"public class X {\n" +
" public static void main(String[] args) {\n" +
" String[][] arr = new String[][] { args };\n" +
" ArrayList<String[]> al = new ArrayList<String[]>(Arrays.asList(arr));\n" +
" }\n" +
"}\n",
},
"");
}
// https://bugs.eclipse.org/bugs/show_bug.cgi?id=83032
public void test022() {
this.runConformTest(
new String[] {
"X.java",
"public class X {\n" +
" String[] args;\n" +
" public X(String... args) {\n" +
" this.args = args;\n" +
" }\n" +
" public static X foo() {\n" +
" return new X(\"SU\", \"C\", \"CE\", \"SS\"){};\n" +
" }\n" +
" public String bar() {\n" +
" if (this.args != null) {\n" +
" StringBuffer buffer = new StringBuffer();\n" +
" for (String s : this.args) {\n" +
" buffer.append(s);\n" +
" }\n" +
" return String.valueOf(buffer);\n" +
" }\n" +
" return null;\n" +
" }\n" +
" public static void main(String[] args) {\n" +
" System.out.print(foo().bar());\n" +
" }\n" +
"}\n",
},
"SUCCESS");
}
// https://bugs.eclipse.org/bugs/show_bug.cgi?id=83536
public void test023() {
this.runConformTest(
new String[] {
"X.java",
"public class X {\n" +
" public static void main (String[] args) {\n" +
" new X().test (new byte[5]);\n" +
" System.out.print(\"SUCCESS\");\n" +
" }\n" +
" private void test (Object... params) {\n" +
" }\n" +
"}",
},
"SUCCESS");
}
// https://bugs.eclipse.org/bugs/show_bug.cgi?id=87042
public void test024() {
this.runConformTest(
new String[] {
"X.java",
"public class X {\n" +
" static boolean foo(Object... args) {\n" +
" return args == null;\n" +
" }\n" +
"\n" +
" public static void main(String[] args) {\n" +
" System.out.println(foo(null, null));\n" +
" }\n" +
"}",
},
"false");
}
// https://bugs.eclipse.org/bugs/show_bug.cgi?id=87042
public void test025() {
this.runConformTest(
new String[] {
"X.java",
"public class X {\n" +
" static boolean foo(Object... args) {\n" +
" return args == null;\n" +
" }\n" +
"\n" +
" public static void main(String[] args) {\n" +
" System.out.println(foo(null));\n" +
" }\n" +
"}",
},
"true");
}
// https://bugs.eclipse.org/bugs/show_bug.cgi?id=87318
public void test026() {
this.runConformTest(
new String[] {
"X.java",
"import java.util.*;\n" +
"public class X {\n" +
" static void foo(int[] intarray) {\n" +
" List<int[]> l = Arrays.asList(intarray);\n" +
" System.out.print(l.get(0).length);\n" +
" }\n" +
" static void foo(String[] strarray) {\n" +
" List l = Arrays.asList(strarray);\n" +
" System.out.print(l);\n" +
" } \n" +
" public static void main(String[] args) {\n" +
" foo(new int[]{0, 1});\n" +
" foo(new String[]{\"a\",\"b\"});\n" +
" System.out.println(\"done\");\n" +
" }\n" +
"}\n",
},
"2[a, b]done");
}
// https://bugs.eclipse.org/bugs/show_bug.cgi?id=87900
public void test027() { // ensure AccVarargs does not collide
this.runNegativeTest(
new String[] {
"X.java",
"public class X {\n" +
" transient private X() {}\n" +
" void test() { X x = new X(); }\n" +
"}\n",
},
"----------\n" +
"1. ERROR in X.java (at line 2)\r\n" +
" transient private X() {}\r\n" +
" ^^^\n" +
"Illegal modifier for the method X.X()\n" +
"----------\n"
);
this.runNegativeTest(
new String[] {
"X.java",
"public class X {\n" +
" transient private X(Object... o) {}\n" +
" void test() { X x = new X(1, 2); }\n" +
"}\n",
},
"----------\n" +
"1. ERROR in X.java (at line 2)\n" +
" transient private X(Object... o) {}\n" +
" ^^^^^^^^^^^^^^\n" +
"Illegal modifier for the method X.X()\n" +
"----------\n"
);
}
// check no offending unnecessary varargs cast gets diagnosed
public void test028() {
this.runNegativeTest(
new String[] {
"X.java",
"import java.lang.reflect.Method;\n" +
"\n" +
"public class X {\n" +
" void test(Method method){ \n" +
" try {\n" +
" method.invoke(this);\n" +
" method.invoke(this, new Class[0]);\n" +
" method.invoke(this, (Object[])new Class[0]);\n" +
" } catch (Exception e) {\n" +
" } \n" +
" }\n" +
" Zork z;\n" +
"}\n",
},
"----------\n" +
"1. WARNING in X.java (at line 7)\n" +
" method.invoke(this, new Class[0]);\n" +
" ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n" +
"Varargs argument Class[] should be cast to Object[] when passed to the method invoke(Object, Object...) from type Method\n" +
"----------\n" +
"2. ERROR in X.java (at line 12)\n" +
" Zork z;\n" +
" ^^^^\n" +
"Zork cannot be resolved to a type\n" +
"----------\n");
}
// https://bugs.eclipse.org/bugs/show_bug.cgi?id=91467
public void test029() {
this.runNegativeTest(
new String[] {
"X.java",
"/**\n" +
" * Whatever you do, eclipse doesn\'t like it.\n" +
" */\n" +
"public class X {\n" +
"\n" +
" /**\n" +
" * Passing a String vararg to a method needing an Object array makes eclipse\n" +
" * either ask for a cast or complain that it is unnecessary. You cannot do\n" +
" * it right.\n" +
" * \n" +
" * @param s\n" +
" */\n" +
" public static void q(String... s) {\n" +
" // OK reports: Varargs argument String[] should be cast to Object[] when passed to the method printf(String, Object...) from type PrintStream\n" +
" System.out.printf(\"\", s);\n" +
" // WRONG reports: Unnecessary cast from String[] to Object[]\n" +
" System.out.printf(\"\", (Object[]) s); \n" +
" }\n" +
" Zork z;\n" +
"}\n",
},
"----------\n" +
"1. WARNING in X.java (at line 15)\n" +
" System.out.printf(\"\", s);\n" +
" ^^^^^^^^^^^^^^^^^^^^^^^^\n" +
"Varargs argument String[] should be cast to Object[] when passed to the method printf(String, Object...) from type PrintStream\n" +
"----------\n" +
"2. ERROR in X.java (at line 19)\n" +
" Zork z;\n" +
" ^^^^\n" +
"Zork cannot be resolved to a type\n" +
"----------\n");
}
// https://bugs.eclipse.org/bugs/show_bug.cgi?id=99260
public void test030() {
this.runConformTest(
new String[] {
"X.java",
"import java.io.Serializable;\n" +
"public class X {\n" +
" public static void main(String[] args) {\n" +
" audit(\"osvaldo\", \"localhost\", \"logged\", \"X\", new Integer(0));\n" +
" audit(\"osvaldo\", \"localhost\", \"logged\", \"X\", \"Y\");\n" +
" audit(\"osvaldo\", \"localhost\", \"logged\", new Float(0), new java.awt.Point(0, 0));\n" +
" }\n" +
" public static <A extends Serializable> void audit(String login,\n" +
" String address, String event, A... args) {\n" +
" for (A a : args) {\n" +
" System.out.println(a.getClass());\n" +
" }\n" +
" }\n" +
"}",
},
"class java.lang.String\n" +
"class java.lang.Integer\n" +
"class java.lang.String\n" +
"class java.lang.String\n" +
"class java.lang.Float\n" +
"class java.awt.Point");
}
}