| /******************************************************************************* |
| * Copyright (c) 2005, 2012 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 |
| * Stephan Herrmann <stephan@cs.tu-berlin.de> - Contributions for |
| * bug 185682 - Increment/decrement operators mark local variables as read |
| * bug 345305 - [compiler][null] Compiler misidentifies a case of "variable can only be null" |
| *******************************************************************************/ |
| package org.eclipse.jdt.core.tests.compiler.regression; |
| |
| import java.util.Map; |
| |
| import org.eclipse.jdt.core.JavaCore; |
| import org.eclipse.jdt.internal.compiler.classfmt.ClassFileConstants; |
| import org.eclipse.jdt.internal.compiler.impl.CompilerOptions; |
| |
| import junit.framework.Test; |
| |
| public class AssignmentTest extends AbstractRegressionTest { |
| |
| public AssignmentTest(String name) { |
| super(name); |
| } |
| protected Map getCompilerOptions() { |
| Map options = super.getCompilerOptions(); |
| options.put(CompilerOptions.OPTION_ReportDeadCode, CompilerOptions.IGNORE); |
| options.put(CompilerOptions.OPTION_ReportNullReference, CompilerOptions.ERROR); |
| options.put(CompilerOptions.OPTION_ReportPotentialNullReference, CompilerOptions.ERROR); |
| options.put(CompilerOptions.OPTION_ReportRedundantNullCheck, CompilerOptions.ERROR); |
| options.put(CompilerOptions.OPTION_ReportNoEffectAssignment, CompilerOptions.ERROR); |
| return options; |
| } |
| // 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[] { 69 }; |
| // TESTS_RANGE = new int[] { 11, -1 }; |
| } |
| public static Test suite() { |
| Test suite = buildAllCompliancesTestSuite(testClass()); |
| return suite; |
| } |
| /* |
| * no effect assignment bug |
| * http://bugs.eclipse.org/bugs/show_bug.cgi?id=27235 |
| */ |
| public void test001() { |
| this.runConformTest( new String[] { |
| "X.java", |
| "public class X { \n" + |
| " int i; \n" + |
| " X(int j) { \n" + |
| " i = j; \n" + |
| " } \n" + |
| " X() { \n" + |
| " } \n" + |
| " class B extends X { \n" + |
| " B() { \n" + |
| " this.i = X.this.i; \n" + |
| " } \n" + |
| " } \n" + |
| " public static void main(String[] args) { \n" + |
| " X a = new X(3); \n" + |
| " System.out.print(a.i + \" \"); \n" + |
| " System.out.print(a.new B().i); \n" + |
| " } \n" + |
| "} \n", |
| }, |
| "3 3"); |
| } |
| |
| public void test002() { |
| this.runNegativeTest( |
| new String[] { |
| "X.java", |
| "public class X {\n" + |
| " int a; \n" + |
| " X next; \n" + |
| " public void foo(int arg){ \n" + |
| " \n" + |
| " zork = zork; \n" + |
| " arg = zork; \n" + |
| " \n" + |
| " arg = arg; // noop \n" + |
| " a = a; // noop \n" + |
| " this.next = this.next; // noop \n" + |
| " this.next = next; // noop \n" + |
| " \n" + |
| " next.a = next.a; // could raise NPE \n" + |
| " this.next.next.a = next.next.a; // could raise NPE \n" + |
| " a = next.a; // could raise NPE \n" + |
| " this. a = next.a; \n" + |
| " } \n" + |
| "}\n", |
| }, |
| "----------\n" + |
| "1. ERROR in X.java (at line 6)\n" + |
| " zork = zork; \n" + |
| " ^^^^\n" + |
| "zork cannot be resolved to a variable\n" + |
| "----------\n" + |
| "2. ERROR in X.java (at line 6)\n" + |
| " zork = zork; \n" + |
| " ^^^^\n" + |
| "zork cannot be resolved to a variable\n" + |
| "----------\n" + |
| "3. ERROR in X.java (at line 7)\n" + |
| " arg = zork; \n" + |
| " ^^^^\n" + |
| "zork cannot be resolved to a variable\n" + |
| "----------\n" + |
| "4. ERROR in X.java (at line 9)\n" + |
| " arg = arg; // noop \n" + |
| " ^^^^^^^^^\n" + |
| "The assignment to variable arg has no effect\n" + |
| "----------\n" + |
| "5. ERROR in X.java (at line 10)\n" + |
| " a = a; // noop \n" + |
| " ^^^^^\n" + |
| "The assignment to variable a has no effect\n" + |
| "----------\n" + |
| "6. ERROR in X.java (at line 11)\n" + |
| " this.next = this.next; // noop \n" + |
| " ^^^^^^^^^^^^^^^^^^^^^\n" + |
| "The assignment to variable next has no effect\n" + |
| "----------\n" + |
| "7. ERROR in X.java (at line 12)\n" + |
| " this.next = next; // noop \n" + |
| " ^^^^^^^^^^^^^^^^\n" + |
| "The assignment to variable next has no effect\n" + |
| "----------\n"); |
| } |
| public void test003() { |
| this.runConformTest( |
| new String[] { |
| "X.java", |
| "public class X {\n" + |
| " int portNumber;\n" + |
| " public static void main(String[] args) {\n" + |
| " X x = new X();\n" + |
| " x.portNumber = Integer.parseInt(\"12\");\n" + |
| " x.run();\n" + |
| " }\n" + |
| " private void run() {\n" + |
| " System.out.println(portNumber);\n" + |
| " }\n" + |
| "}", // ================= |
| |
| }, |
| "12"); |
| } |
| //https://bugs.eclipse.org/bugs/show_bug.cgi?id=151787 |
| public void test004() { |
| this.runNegativeTest( |
| new String[] { |
| "X.java", |
| "public class X {\n" + |
| " // correctly passes compilation\n" + |
| " static class Test1 {\n" + |
| " private final Object o;\n" + |
| " \n" + |
| " Test1() {\n" + |
| " o = new Object();\n" + |
| " }\n" + |
| " }\n" + |
| " \n" + |
| " // correctly passes compilation\n" + |
| " static class Test2 {\n" + |
| " private final Object o;\n" + |
| " \n" + |
| " Test2() {\n" + |
| " this.o = new Object();\n" + |
| " }\n" + |
| " }\n" + |
| " \n" + |
| " // correctly fails compilation\n" + |
| " static class Test3 {\n" + |
| " private final Object o;\n" + |
| " \n" + |
| " Test3() {\n" + |
| " System.out.println(o); // illegal; o is not definitely assigned\n" + |
| " o = new Object();\n" + |
| " }\n" + |
| " }\n" + |
| " \n" + |
| " // correctly passes compilation\n" + |
| " static class Test4 {\n" + |
| " private final Object o;\n" + |
| " \n" + |
| " Test4() {\n" + |
| " System.out.println(this.o); // legal\n" + |
| " o = new Object();\n" + |
| " }\n" + |
| " }\n" + |
| " \n" + |
| " // incorrectly passes compilation\n" + |
| " static class Test5 {\n" + |
| " private final Object o;\n" + |
| " \n" + |
| " Test5() {\n" + |
| " Test5 other = this;\n" + |
| " other.o = new Object(); // illegal! other.o is not assignable\n" + |
| " } // error: this.o is not definitely assigned\n" + |
| " }\n" + |
| " \n" + |
| " // flags wrong statement as error\n" + |
| " static class Test6 {\n" + |
| " private final Object o;\n" + |
| " static Test6 initing;\n" + |
| " \n" + |
| " Test6() {\n" + |
| " initing = this;\n" + |
| " System.out.println(\"greetings\");\n" + |
| " Test6 other = initing;\n" + |
| " other.o = new Object(); // illegal! other.o is not assignable\n" + |
| " o = new Object(); // legal\n" + |
| " }\n" + |
| " }\n" + |
| "}\n", // ================= |
| }, |
| "----------\n" + |
| "1. WARNING in X.java (at line 4)\n" + |
| " private final Object o;\n" + |
| " ^\n" + |
| "The value of the field X.Test1.o is not used\n" + |
| "----------\n" + |
| "2. WARNING in X.java (at line 13)\n" + |
| " private final Object o;\n" + |
| " ^\n" + |
| "The value of the field X.Test2.o is not used\n" + |
| "----------\n" + |
| "3. ERROR in X.java (at line 25)\n" + |
| " System.out.println(o); // illegal; o is not definitely assigned\n" + |
| " ^\n" + |
| "The blank final field o may not have been initialized\n" + |
| "----------\n" + |
| "4. WARNING in X.java (at line 42)\n" + |
| " private final Object o;\n" + |
| " ^\n" + |
| "The value of the field X.Test5.o is not used\n" + |
| "----------\n" + |
| "5. ERROR in X.java (at line 44)\n" + |
| " Test5() {\n" + |
| " ^^^^^^^\n" + |
| "The blank final field o may not have been initialized\n" + |
| "----------\n" + |
| "6. ERROR in X.java (at line 46)\n" + |
| " other.o = new Object(); // illegal! other.o is not assignable\n" + |
| " ^\n" + |
| "The final field X.Test5.o cannot be assigned\n" + |
| "----------\n" + |
| "7. WARNING in X.java (at line 52)\n" + |
| " private final Object o;\n" + |
| " ^\n" + |
| "The value of the field X.Test6.o is not used\n" + |
| "----------\n" + |
| "8. ERROR in X.java (at line 59)\n" + |
| " other.o = new Object(); // illegal! other.o is not assignable\n" + |
| " ^\n" + |
| "The final field X.Test6.o cannot be assigned\n" + |
| "----------\n"); |
| } |
| //https://bugs.eclipse.org/bugs/show_bug.cgi?id=190391 |
| public void test005() { |
| this.runNegativeTest( |
| new String[] { |
| "X.java", |
| "public class X {\n" + |
| " final int contents;\n" + |
| " \n" + |
| " X() {\n" + |
| " contents = 3;\n" + |
| " }\n" + |
| " X(X other) {\n" + |
| " other.contents = 5;\n" + |
| " }\n" + |
| " \n" + |
| " public static void main(String[] args) {\n" + |
| " X one = new X();\n" + |
| " System.out.println(\"one.contents: \" + one.contents);\n" + |
| " X two = new X(one);\n" + |
| " System.out.println(\"one.contents: \" + one.contents);\n" + |
| " System.out.println(\"two.contents: \" + two.contents);\n" + |
| " }\n" + |
| "}\n", // ================= |
| }, |
| "----------\n" + |
| "1. ERROR in X.java (at line 7)\n" + |
| " X(X other) {\n" + |
| " ^^^^^^^^^^\n" + |
| "The blank final field contents may not have been initialized\n" + |
| "----------\n" + |
| "2. ERROR in X.java (at line 8)\n" + |
| " other.contents = 5;\n" + |
| " ^^^^^^^^\n" + |
| "The final field X.contents cannot be assigned\n" + |
| "----------\n"); |
| } |
| // final multiple assignment |
| public void test020() { |
| this.runNegativeTest( |
| new String[] { |
| "X.java", |
| "public class X {\n" + |
| " void foo() {\n" + |
| " final int v;\n" + |
| " for (int i = 0; i < 10; i++) {\n" + |
| " v = i;\n" + |
| " }\n" + |
| " v = 0;\n" + |
| " }\n" + |
| "}\n", |
| }, |
| "----------\n" + |
| "1. ERROR in X.java (at line 5)\n" + |
| " v = i;\n" + |
| " ^\n" + |
| "The final local variable v may already have been assigned\n" + |
| "----------\n" + |
| "2. ERROR in X.java (at line 7)\n" + |
| " v = 0;\n" + |
| " ^\n" + |
| "The final local variable v may already have been assigned\n" + |
| "----------\n"); |
| } |
| |
| // null part has been repeated into NullReferenceTest#test1033 |
| public void test033() { |
| this.runNegativeTest( |
| new String[] { |
| "X.java", |
| "public class X {\n" + |
| " \n" + |
| " void foo() {\n" + |
| " String a,b;\n" + |
| " do{\n" + |
| " a=\"Hello \";\n" + |
| " }while(a!=null);\n" + |
| " \n" + |
| " if(a!=null)\n" + |
| " {\n" + |
| " b=\"World!\";\n" + |
| " }\n" + |
| " System.out.println(a+b);\n" + |
| " }\n" + |
| "}\n", |
| }, |
| "----------\n" + |
| "1. ERROR in X.java (at line 7)\n" + |
| " }while(a!=null);\n" + |
| " ^\n" + |
| "Redundant null check: The variable a cannot be null at this location\n" + |
| "----------\n" + |
| "2. ERROR in X.java (at line 9)\n" + |
| " if(a!=null)\n" + |
| " ^\n" + |
| "Null comparison always yields false: The variable a can only be null at this location\n" + |
| "----------\n" + |
| "3. ERROR in X.java (at line 13)\n" + |
| " System.out.println(a+b);\n" + |
| " ^\n" + |
| "The local variable b may not have been initialized\n" + |
| "----------\n"); |
| } |
| |
| //https://bugs.eclipse.org/bugs/show_bug.cgi?id=84215 |
| //TODO (philippe) should move to InitializationTest suite |
| public void test034() { |
| Map options = getCompilerOptions(); |
| options.put(JavaCore.COMPILER_PB_UNUSED_PRIVATE_MEMBER, JavaCore.IGNORE); |
| this.runNegativeTest( |
| new String[] { |
| "X.java", |
| "public final class X \n" + |
| "{\n" + |
| " public static String vdg;\n" + |
| " public static final String aa = null;\n" + |
| " public static final int a = 14;\n" + |
| " public static final int b = 3;\n" + |
| " private static final int c = 12;\n" + |
| " private static final int d = 2; \n" + |
| " private static final int e = 3; \n" + |
| " private static final int f = 34; \n" + |
| " private static final int g = 35; \n" + |
| " private static final int h = 36; \n" + |
| " private static final int j = 4;\n" + |
| " private static final int k = 1;\n" + |
| " public static final int aba = 1;\n" + |
| " public static final int as = 11;\n" + |
| " public static final int ad = 12;\n" + |
| " public static final int af = 13;\n" + |
| " public static final int ag = 2;\n" + |
| " public static final int ah = 21;\n" + |
| " public static final int aj = 22;\n" + |
| " public static final int ak = 3;\n" + |
| " public static final String aaad = null;\n" + |
| " public static final int aaaf = 1;\n" + |
| " public static final int aaag = 2;\n" + |
| " public static final int aaha = 2;\n" + |
| " static int cxvvb = 1;\n" + |
| " static int z = a;\n" + |
| " String asdff;\n" + |
| " public static String ppfp;\n" + |
| " public static int ppfpged;\n" + |
| " boolean asfadf;\n" + |
| " boolean cbxbx;\n" + |
| " private static long tyt, rrky;\n" + |
| " private static int dgjt, ykjr6y;\n" + |
| " private static final int krykr = 1;\n" + |
| " protected static int rykr5;\n" + |
| " protected static int dhfg;\n" + |
| " private static int dthj;\n" + |
| " private static int fkffy;\n" + |
| " private static String fhfy;\n" + |
| " protected static String fhmf;\n" + |
| " protected String ryur6;\n" + |
| " protected String dhdthd;\n" + |
| " protected String dth5;\n" + |
| " protected String kfyk;\n" + |
| " private String ntd;\n" + |
| " public int asdasdads;\n" + |
| " public static final int dntdr = 7;\n" + |
| " public static final int asys = 1;\n" + |
| " public static final int djd5rwas = 11;\n" + |
| " public static final int dhds45rjd = 12;\n" + |
| " public static final int srws4jd = 13;\n" + |
| " public static final int s4ts = 2;\n" + |
| " public static final int dshes4 = 21;\n" + |
| " public static final int drthed56u = 22;\n" + |
| " public static final int drtye45 = 23;\n" + |
| " public static final int xxbxrb = 3;\n" + |
| " public static final int xfbxr = 31;\n" + |
| " public static final int asgw4y = 32;\n" + |
| " public static final int hdtrhs5r = 33;\n" + |
| " public static final int dshsh = 34;\n" + |
| " public static final int ds45yuwsuy = 4;\n" + |
| " public static final int astgs45rys = 5;\n" + |
| " public static final int srgs4y = 6;\n" + |
| " public static final int srgsryw45 = -6;\n" + |
| " public static final int srgdtgjd45ry = -7;\n" + |
| " public static final int srdjs43t = 1;\n" + |
| " public static final int sedteued5y = 2;\n" + |
| " public static int jrfd6u;\n" + |
| " public static int udf56u;\n" + |
| " private String jf6tu;\n" + |
| " private String jf6tud;\n" + |
| " String bsrh;\n" + |
| " protected X(String a)\n" + |
| " {\n" + |
| " }\n" + |
| " private long sfhdsrhs;\n" + |
| " private boolean qaafasdfs;\n" + |
| " private int sdgsa;\n" + |
| " private long dgse4;\n" + |
| " long sgrdsrg;\n" + |
| " public void gdsthsr()\n" + |
| " {\n" + |
| " }\n" + |
| " private int hsrhs;\n" + |
| " private void hsrhsdsh()\n" + |
| " {\n" + |
| " }\n" + |
| " private String dsfhshsr;\n" + |
| " protected void sfhsh4rsrh()\n" + |
| " {\n" + |
| " }\n" + |
| " protected void shsrhsh()\n" + |
| " {\n" + |
| " }\n" + |
| " protected void sfhstuje56u()\n" + |
| " {\n" + |
| " }\n" + |
| " public void dhdrt6u()\n" + |
| " {\n" + |
| " }\n" + |
| " public void hdtue56u()\n" + |
| " {\n" + |
| " }\n" + |
| " private void htdws4()\n" + |
| " {\n" + |
| " }\n" + |
| " String mfmgf;\n" + |
| " String mgdmd;\n" + |
| " String mdsrh;\n" + |
| " String nmdr;\n" + |
| " private void oyioyio()\n" + |
| " {\n" + |
| " }\n" + |
| " protected static long oyioyreye()\n" + |
| " {\n" + |
| " return 0;\n" + |
| " }\n" + |
| " protected static long etueierh()\n" + |
| " {\n" + |
| " return 0;\n" + |
| " }\n" + |
| " protected static void sdfgsgs()\n" + |
| " {\n" + |
| " }\n" + |
| " protected static void fhsrhsrh()\n" + |
| " {\n" + |
| " }\n" + |
| "\n" + |
| " long dcggsdg;\n" + |
| " int ssssssgsfh;\n" + |
| " long ssssssgae;\n" + |
| " long ssssssfaseg;\n" + |
| " public void zzzdged()\n" + |
| " {\n" + |
| " }\n" + |
| " \n" + |
| " String t;\n" + |
| " protected void xxxxxcbsg()\n" + |
| " {\n" + |
| " }\n" + |
| "\n" + |
| " \n" + |
| " public void vdg()\n" + |
| " {\n" + |
| " }\n" + |
| " \n" + |
| " private int[] fffcvffffffasdfaef;\n" + |
| " private int[] fffcffffffasdfaef;\n" + |
| " private long[] ffcvfffffffasdfaef;\n" + |
| " private int fffffghffffasdfaef; \n" + |
| " private int fffffdffffasdfaef; \n" + |
| " private String ffafffffffasdfaef;\n" + |
| " \n" + |
| " private void fffffffffasdfaef()\n" + |
| " {\n" + |
| " }\n" + |
| " \n" + |
| " private boolean aaaadgasrg;\n" + |
| " private void ddddgaergnj()\n" + |
| " {\n" + |
| " }\n" + |
| "\n" + |
| " private void aaaadgaeg()\n" + |
| " {\n" + |
| " }\n" + |
| " \n" + |
| " private void aaaaaaefadfgh()\n" + |
| " {\n" + |
| " }\n" + |
| " \n" + |
| " private void addddddddafge()\n" + |
| " {\n" + |
| " }\n" + |
| " \n" + |
| " static boolean aaaaaaaefae;\n" + |
| " protected void aaaaaaefaef()\n" + |
| " {\n" + |
| " }\n" + |
| "\n" + |
| " private void ggggseae()\n" + |
| " {\n" + |
| " }\n" + |
| "\n" + |
| " private static void ggggggsgsrg()\n" + |
| " {\n" + |
| " }\n" + |
| "\n" + |
| " private static synchronized void ggggggfsfgsr()\n" + |
| " {\n" + |
| " }\n" + |
| "\n" + |
| " private void aaaaaadgaeg()\n" + |
| " {\n" + |
| " }\n" + |
| " \n" + |
| " private void aaaaadgaerg()\n" + |
| " {\n" + |
| " }\n" + |
| " \n" + |
| " private void bbbbbbsfryghs()\n" + |
| " {\n" + |
| " }\n" + |
| " \n" + |
| " private void bfbbbbbbfssreg()\n" + |
| " {\n" + |
| " }\n" + |
| "\n" + |
| " private void bbbbbbfssfb()\n" + |
| " {\n" + |
| " }\n" + |
| "\n" + |
| " private void bbbbbbfssb()\n" + |
| " {\n" + |
| " }\n" + |
| "\n" + |
| " private void bbbbfdssb()\n" + |
| " {\n" + |
| " }\n" + |
| " \n" + |
| " boolean dggggggdsg;\n" + |
| "\n" + |
| " public void hdfhdr()\n" + |
| " {\n" + |
| " }\n" + |
| " \n" + |
| " private void dhdrtdrs()\n" + |
| " {\n" + |
| " }\n" + |
| " \n" + |
| " private void dghdthtdhd()\n" + |
| " {\n" + |
| " }\n" + |
| " \n" + |
| " private void dhdhdtdh()\n" + |
| " {\n" + |
| " }\n" + |
| " \n" + |
| " private void fddhdsh()\n" + |
| " {\n" + |
| " }\n" + |
| " \n" + |
| " private boolean sdffgsdg()\n" + |
| " {\n" + |
| " return true;\n" + |
| " }\n" + |
| " \n" + |
| " private static boolean sdgsdg()\n" + |
| " {\n" + |
| " return false;\n" + |
| " }\n" + |
| " \n" + |
| " protected static final void sfdgsg()\n" + |
| " {\n" + |
| " }\n" + |
| "\n" + |
| " static int[] fghtys;\n" + |
| "\n" + |
| " protected static final int sdsst = 1;\n" + |
| " private static X asdfahnr;\n" + |
| " private static int ssdsdbrtyrtdfhd, ssdsrtyrdbdfhd;\n" + |
| " protected static int ssdsrtydbdfhd, ssdsrtydffbdfhd;\n" + |
| " protected static int ssdrtyhrtysdbdfhd, ssyeghdsdbdfhd;\n" + |
| " private static int ssdsdrtybdfhd, ssdsdehebdfhd;\n" + |
| " protected static int ssdthrtsdbdfhd, ssdshethetdbdfhd;\n" + |
| " private static String sstrdrfhdsdbdfhd;\n" + |
| " protected static int ssdsdbdfhd, ssdsdethbdfhd;\n" + |
| " private static long ssdshdfhchddbdfhd;\n" + |
| " private static long ssdsdvbbdfhd;\n" + |
| " \n" + |
| " \n" + |
| " protected static long ssdsdbdfhd()\n" + |
| " {\n" + |
| " return 0;\n" + |
| " }\n" + |
| "\n" + |
| " protected static long sdgsrsbsf()\n" + |
| " {\n" + |
| " return 0;\n" + |
| " }\n" + |
| "\n" + |
| " protected static void sfgsfgssghr()\n" + |
| " {\n" + |
| " }\n" + |
| " \n" + |
| " protected static String sgsgsrg()\n" + |
| " {\n" + |
| " return null;\n" + |
| " }\n" + |
| "\n" + |
| " protected static void sdgshsdygra()\n" + |
| " {\n" + |
| " }\n" + |
| "\n" + |
| " private static String sdfsdfs()\n" + |
| " {\n" + |
| " return null;\n" + |
| " }\n" + |
| "\n" + |
| " static boolean ryweyer;\n" + |
| "\n" + |
| " protected static void adfadfaghsfh()\n" + |
| " {\n" + |
| " }\n" + |
| " \n" + |
| " protected static void ghasghasrg()\n" + |
| " {\n" + |
| " }\n" + |
| "\n" + |
| " private static void aadfadfaf()\n" + |
| " {\n" + |
| " }\n" + |
| "\n" + |
| " protected static void aadfadf()\n" + |
| " {\n" + |
| " }\n" + |
| " \n" + |
| " private static int fgsfhwr()\n" + |
| " {\n" + |
| " return 0;\n" + |
| " }\n" + |
| "\n" + |
| " protected static int gdfgfgrfg()\n" + |
| " {\n" + |
| " return 0;\n" + |
| " }\n" + |
| "\n" + |
| " protected static int asdfsfs()\n" + |
| " {\n" + |
| " return 0;\n" + |
| " }\n" + |
| "\n" + |
| " protected static String sdgs;\n" + |
| " protected static String sdfsh4e;\n" + |
| " protected static final int gsregs = 0;\n" + |
| " \n" + |
| " protected static String sgsgsd()\n" + |
| " {\n" + |
| " return null;\n" + |
| " }\n" + |
| "\n" + |
| " private byte[] sdhqtgwsrh(String rsName, int id)\n" + |
| " {\n" + |
| " String rs = null;\n" + |
| " try\n" + |
| " {\n" + |
| " rs = \"\";\n" + |
| " return null;\n" + |
| " }\n" + |
| " catch (Exception ex)\n" + |
| " {\n" + |
| " }\n" + |
| " finally\n" + |
| " {\n" + |
| " if (rs != null)\n" + |
| " {\n" + |
| " try\n" + |
| " {\n" + |
| " rs.toString();\n" + |
| " }\n" + |
| " catch (Exception ex)\n" + |
| " {\n" + |
| " }\n" + |
| " }\n" + |
| " }\n" + |
| " return null;\n" + |
| " }\n" + |
| "\n" + |
| " private void dgagadga()\n" + |
| " {\n" + |
| " }\n" + |
| " \n" + |
| " private String adsyasta;\n" + |
| "}\n", |
| }, |
| "----------\n" + |
| "1. ERROR in X.java (at line 356)\n" + |
| " if (rs != null)\n" + |
| " ^^\n" + |
| "Redundant null check: The variable rs cannot be null at this location\n" + |
| "----------\n", |
| null/*classLibs*/, |
| true/*shouldFlush*/, |
| options); |
| } |
| /* |
| * Check scenario: i = i++ |
| * http://bugs.eclipse.org/bugs/show_bug.cgi?id=84480 |
| * disabled: https://bugs.eclipse.org/bugs/show_bug.cgi?id=111898 |
| */ |
| public void test035() { |
| this.runNegativeTest( |
| new String[] { |
| "X.java", |
| "public class X {\n" + |
| " int f;\n" + |
| " void foo(int i) {\n" + |
| " i = i++;\n" + |
| " i = ++i;\n" + |
| " f = f++;\n" + |
| " f = ++f;\n" + |
| " Zork z;" + |
| " }\n" + |
| "}\n", |
| }, |
| "----------\n" + |
| "1. ERROR in X.java (at line 5)\n" + |
| " i = ++i;\n" + |
| " ^^^^^^^\n" + |
| "The assignment to variable i has no effect\n" + |
| "----------\n" + |
| "2. ERROR in X.java (at line 7)\n" + |
| " f = ++f;\n" + |
| " ^^^^^^^\n" + |
| "The assignment to variable f has no effect\n" + |
| "----------\n" + |
| "3. ERROR in X.java (at line 8)\n" + |
| " Zork z; }\n" + |
| " ^^^^\n" + |
| "Zork cannot be resolved to a type\n" + |
| "----------\n"); |
| } |
| public void test036() { |
| runNegativeTest( |
| new String[] { |
| "X.java", |
| "public class X {\n" + |
| "\n" + |
| " void foo() {\n" + |
| " Object o = new Object();\n" + |
| " do {\n" + |
| " o = null;\n" + |
| " } while (o != null);\n" + |
| " if (o == null) {\n" + |
| " // throw new Exception();\n" + |
| " }\n" + |
| " }\n" + |
| "}\n", |
| }, |
| "----------\n" + |
| "1. ERROR in X.java (at line 7)\n" + |
| " } while (o != null);\n" + |
| " ^\n" + |
| "Null comparison always yields false: The variable o can only be null at this location\n" + |
| "----------\n" + |
| "2. ERROR in X.java (at line 8)\n" + |
| " if (o == null) {\n" + |
| " ^\n" + |
| "Redundant null check: The variable o can only be null at this location\n" + |
| "----------\n", |
| JavacTestOptions.Excuse.EclipseWarningConfiguredAsError /* javac test options */); |
| } |
| //https://bugs.eclipse.org/bugs/show_bug.cgi?id=93588 |
| public void test037() { |
| this.runConformTest( |
| new String[] { |
| "X.java", |
| "public class X extends Object implements Runnable {\n" + |
| " int interval = 5;\n" + |
| " public void run() {\n" + |
| " try {\n" + |
| " Thread.sleep(interval = interval + 100);\n" + |
| " Thread.sleep(interval += 100);\n" + |
| " } catch (InterruptedException e) {\n" + |
| " e.printStackTrace();\n" + |
| " }\n" + |
| " }\n" + |
| "\n" + |
| " public static void main(String[] args) {\n" + |
| " new X().run();\n" + |
| " }\n" + |
| "}\n", |
| }, |
| ""); |
| } |
| //https://bugs.eclipse.org/bugs/show_bug.cgi?id=111703 |
| public void test038() { |
| this.runNegativeTest( |
| new String[] { |
| "X.java", |
| "import java.awt.event.*;\n" + |
| "\n" + |
| "import javax.swing.*;\n" + |
| "import javax.swing.event.*;\n" + |
| "\n" + |
| "public class X {\n" + |
| " JButton myButton = new JButton();\n" + |
| " JTree myTree = new JTree();\n" + |
| " ActionListener action;\n" + |
| " X() {\n" + |
| " action = new ActionListener() {\n" + |
| " public void actionPerformed(ActionEvent e) {\n" + |
| " if (true) {\n" + |
| " // unlock document\n" + |
| " final Object document = new Object();\n" + |
| " myButton.addActionListener(new ActionListener() {\n" + |
| " private static boolean selectionChanged;\n" + |
| " static TreeSelectionListener list = new TreeSelectionListener() {\n" + |
| " public void valueChanged(TreeSelectionEvent e) {\n" + |
| " selectionChanged = true;\n" + |
| " }\n" + |
| " };\n" + |
| " static {\n" + |
| " myTree.addTreeSelectionListener(list);\n" + |
| " }\n" + |
| " public void actionPerformed(ActionEvent e) {\n" + |
| " if(!selectionChanged)\n" + |
| " myButton.removeActionListener(this);\n" + |
| " }\n" + |
| " });\n" + |
| " }\n" + |
| " }\n" + |
| " };\n" + |
| " }\n" + |
| " public static void main(String[] args) {\n" + |
| " new X();\n" + |
| " }\n" + |
| "\n" + |
| "}", |
| }, |
| "----------\n" + |
| "1. WARNING in X.java (at line 19)\n" + |
| " public void valueChanged(TreeSelectionEvent e) {\n" + |
| " ^\n" + |
| "The parameter e is hiding another local variable defined in an enclosing type scope\n" + |
| "----------\n" + |
| "2. ERROR in X.java (at line 23)\n" + |
| " static {\n" + |
| " ^\n" + |
| "Cannot define static initializer in inner type new ActionListener(){}\n" + |
| "----------\n" + |
| "3. ERROR in X.java (at line 24)\n" + |
| " myTree.addTreeSelectionListener(list);\n" + |
| " ^^^^^^\n" + |
| "Cannot make a static reference to the non-static field myTree\n" + |
| "----------\n" + |
| "4. WARNING in X.java (at line 26)\n" + |
| " public void actionPerformed(ActionEvent e) {\n" + |
| " ^\n" + |
| "The parameter e is hiding another local variable defined in an enclosing type scope\n" + |
| "----------\n"); |
| } |
| //https://bugs.eclipse.org/bugs/show_bug.cgi?id=111898 |
| public void test039() { |
| this.runConformTest( |
| new String[] { |
| "X.java", |
| "public class X {\n" + |
| " public static void main(String[] args) {\n" + |
| " int a = 1;\n" + |
| " a = a++;\n" + |
| " System.out.print(\"a=\"+a);\n" + |
| " \n" + |
| " int b = 1;\n" + |
| " System.out.print(b = b++);\n" + |
| " System.out.println(\"b=\"+b);\n" + |
| " }\n" + |
| "}\n", |
| }, |
| "a=11b=1"); |
| } |
| // warn upon parameter assignment |
| // https://bugs.eclipse.org/bugs/show_bug.cgi?id=53773 |
| public void test040() { |
| Map options = getCompilerOptions(); |
| options.put(CompilerOptions.OPTION_ReportParameterAssignment, CompilerOptions.ERROR); |
| runNegativeTest( |
| // test directory preparation |
| true /* flush output directory */, |
| new String[] { /* test files */ |
| "X.java", |
| "public class X {\n" + |
| " void foo(boolean b) {\n" + |
| " b = false;\n" + |
| " }\n" + |
| "}\n", |
| }, |
| // compiler options |
| null /* no class libraries */, |
| options /* custom options */, |
| // compiler results |
| "----------\n" + /* expected compiler log */ |
| "1. ERROR in X.java (at line 3)\n" + |
| " b = false;\n" + |
| " ^\n" + |
| "The parameter b should not be assigned\n" + |
| "----------\n", |
| // javac options |
| JavacTestOptions.Excuse.EclipseWarningConfiguredAsError /* javac test options */); |
| } |
| // warn upon parameter assignment |
| // https://bugs.eclipse.org/bugs/show_bug.cgi?id=53773 |
| // diagnose within fake reachable code |
| public void test041() { |
| Map options = getCompilerOptions(); |
| options.put(CompilerOptions.OPTION_ReportParameterAssignment, CompilerOptions.ERROR); |
| runNegativeTest( |
| // test directory preparation |
| true /* flush output directory */, |
| new String[] { /* test files */ |
| "X.java", |
| "public class X {\n" + |
| " void foo(boolean b) {\n" + |
| " if (false) {\n" + |
| " b = false;\n" + |
| " }\n" + |
| " }\n" + |
| "}\n", |
| }, |
| // compiler options |
| null /* no class libraries */, |
| options /* custom options */, |
| // compiler results |
| "----------\n" + |
| "1. ERROR in X.java (at line 4)\n" + |
| " b = false;\n" + |
| " ^\n" + |
| "The parameter b should not be assigned\n" + |
| "----------\n", |
| // javac options |
| JavacTestOptions.Excuse.EclipseWarningConfiguredAsError /* javac test options */); |
| } |
| // warn upon parameter assignment |
| // https://bugs.eclipse.org/bugs/show_bug.cgi?id=53773 |
| // diagnose within fake reachable code |
| public void test042() { |
| Map options = getCompilerOptions(); |
| options.put(CompilerOptions.OPTION_ReportParameterAssignment, CompilerOptions.ERROR); |
| runNegativeTest( |
| // test directory preparation |
| true /* flush output directory */, |
| new String[] { /* test files */ |
| "X.java", |
| "public class X {\n" + |
| " void foo(boolean b) {\n" + |
| " if (true) {\n" + |
| " return;\n" + |
| " }\n" + |
| " b = false;\n" + |
| " }\n" + |
| "}\n", |
| }, |
| // compiler options |
| null /* no class libraries */, |
| options /* custom options */, |
| // compiler results |
| "----------\n" + /* expected compiler log */ |
| "1. ERROR in X.java (at line 6)\n" + |
| " b = false;\n" + |
| " ^\n" + |
| "The parameter b should not be assigned\n" + |
| "----------\n", |
| // javac options |
| JavacTestOptions.Excuse.EclipseWarningConfiguredAsError /* javac test options */); |
| } |
| // warn upon parameter assignment |
| // https://bugs.eclipse.org/bugs/show_bug.cgi?id=53773 |
| // we only show the 'assignment to final' error here |
| public void test043() { |
| Map options = getCompilerOptions(); |
| options.put(CompilerOptions.OPTION_ReportParameterAssignment, CompilerOptions.ERROR); |
| this.runNegativeTest( |
| new String[] { |
| "X.java", |
| "public class X {\n" + |
| " void foo(final boolean b) {\n" + |
| " if (false) {\n" + |
| " b = false;\n" + |
| " }\n" + |
| " }\n" + |
| "}\n", |
| }, |
| "----------\n" + |
| "1. ERROR in X.java (at line 4)\n" + |
| " b = false;\n" + |
| " ^\n" + |
| "The final local variable b cannot be assigned. It must be blank and not using a compound assignment\n" + |
| "----------\n", |
| null, true, options); |
| } |
| //https://bugs.eclipse.org/bugs/show_bug.cgi?id=100369 |
| public void test044() { |
| this.runNegativeTest( |
| new String[] { |
| "X.java", |
| "public class X {\n" + |
| " int length1 = 0;\n" + |
| " {\n" + |
| " length1 = length1; // already detected\n" + |
| " }\n" + |
| " int length2 = length2 = 0; // not detected\n" + |
| " int length3 = 0;\n" + |
| " {\n" + |
| " length3 = length3 = 0; // not detected\n" + |
| " }\n" + |
| " static void foo() {\n" + |
| " int length1 = 0;\n" + |
| " length1 = length1; // already detected\n" + |
| " int length2 = length2 = 0; // not detected\n" + |
| " int length3 = 0;\n" + |
| " length3 = length3 = 0; // not detected\n" + |
| " }\n" + |
| "}\n", |
| }, |
| "----------\n" + |
| "1. ERROR in X.java (at line 4)\n" + |
| " length1 = length1; // already detected\n" + |
| " ^^^^^^^^^^^^^^^^^\n" + |
| "The assignment to variable length1 has no effect\n" + |
| "----------\n" + |
| "2. ERROR in X.java (at line 6)\n" + |
| " int length2 = length2 = 0; // not detected\n" + |
| " ^^^^^^^^^^^^^^^^^^^^^\n" + |
| "The assignment to variable length2 has no effect\n" + |
| "----------\n" + |
| "3. ERROR in X.java (at line 9)\n" + |
| " length3 = length3 = 0; // not detected\n" + |
| " ^^^^^^^^^^^^^^^^^^^^^\n" + |
| "The assignment to variable length3 has no effect\n" + |
| "----------\n" + |
| "4. ERROR in X.java (at line 13)\n" + |
| " length1 = length1; // already detected\n" + |
| " ^^^^^^^^^^^^^^^^^\n" + |
| "The assignment to variable length1 has no effect\n" + |
| "----------\n" + |
| "5. ERROR in X.java (at line 14)\n" + |
| " int length2 = length2 = 0; // not detected\n" + |
| " ^^^^^^^^^^^^^^^^^^^^^\n" + |
| "The assignment to variable length2 has no effect\n" + |
| "----------\n" + |
| "6. ERROR in X.java (at line 16)\n" + |
| " length3 = length3 = 0; // not detected\n" + |
| " ^^^^^^^^^^^^^^^^^^^^^\n" + |
| "The assignment to variable length3 has no effect\n" + |
| "----------\n", |
| JavacTestOptions.Excuse.EclipseWarningConfiguredAsError /* javac test options */); |
| } |
| //https://bugs.eclipse.org/bugs/show_bug.cgi?id=133351 |
| public void test045() { |
| this.runNegativeTest( |
| new String[] { |
| "X.java", |
| "public class X {\n" + |
| " void foo() {\n" + |
| " int length2 = length2 = 0; // first problem\n" + |
| " int length3 = 0;\n" + |
| " length3 = length3 = 0; // second problem\n" + |
| " }\n" + |
| "}\n", |
| }, |
| "----------\n" + |
| "1. ERROR in X.java (at line 3)\n" + |
| " int length2 = length2 = 0; // first problem\n" + |
| " ^^^^^^^^^^^^^^^^^^^^^\n" + |
| "The assignment to variable length2 has no effect\n" + |
| "----------\n" + |
| "2. ERROR in X.java (at line 5)\n" + |
| " length3 = length3 = 0; // second problem\n" + |
| " ^^^^^^^^^^^^^^^^^^^^^\n" + |
| "The assignment to variable length3 has no effect\n" + |
| "----------\n", |
| JavacTestOptions.Excuse.EclipseWarningConfiguredAsError); |
| } |
| // https://bugs.eclipse.org/bugs/show_bug.cgi?id=200724 |
| public void test046() { |
| this.runNegativeTest( |
| new String[] { |
| "X.java", |
| "public class X {\n" + |
| " public static String s;\n" + |
| " void foo(String s1) {\n" + |
| " X.s = s;" + |
| " }\n" + |
| "}\n", |
| }, |
| "----------\n" + |
| "1. ERROR in X.java (at line 4)\n" + |
| " X.s = s; }\n" + |
| " ^^^^^^^\n" + |
| "The assignment to variable s has no effect\n" + |
| "----------\n", |
| JavacTestOptions.Excuse.EclipseWarningConfiguredAsError /* javac test options */); |
| } |
| // https://bugs.eclipse.org/bugs/show_bug.cgi?id=200724 |
| public void test047() { |
| this.runConformTest( |
| new String[] { |
| "X.java", |
| "public class X {\n" + |
| " public static X MyX;\n" + |
| " public static String s;\n" + |
| " void foo(String s1) {\n" + |
| " X.MyX.s = s;" + // MyX could hold any extending type, hence we must not complain |
| " }\n" + |
| "}\n", |
| }, |
| ""); |
| } |
| // https://bugs.eclipse.org/bugs/show_bug.cgi?id=200724 |
| // we could decide that MyX won't change, hence that the assignment |
| // on line a has no effect, but we accept this as a limit |
| public void _test048() { |
| this.runNegativeTest( |
| new String[] { |
| "X.java", |
| "public class X {\n" + |
| " public static final X MyX = new X();\n" + |
| " public static String s;\n" + |
| " void foo(String s1) {\n" + |
| " X.MyX.s = s;" + // a |
| " }\n" + |
| "}\n", |
| }, |
| "ERR"); |
| } |
| // https://bugs.eclipse.org/bugs/show_bug.cgi?id=200724 |
| // adding a package to the picture |
| public void test049() { |
| this.runNegativeTest( |
| new String[] { |
| "p/X.java", |
| "package p;\n" + |
| "public class X {\n" + |
| " public static String s;\n" + |
| " void foo(String s1) {\n" + |
| " p.X.s = s;" + |
| " }\n" + |
| "}\n", |
| }, |
| "----------\n" + |
| "1. ERROR in p\\X.java (at line 5)\n" + |
| " p.X.s = s; }\n" + |
| " ^^^^^^^^^\n" + |
| "The assignment to variable s has no effect\n" + |
| "----------\n", |
| JavacTestOptions.Excuse.EclipseWarningConfiguredAsError /* javac test options */); |
| } |
| // https://bugs.eclipse.org/bugs/show_bug.cgi?id=200724 |
| // adding an inner class to the picture |
| public void test050() { |
| this.runNegativeTest( |
| new String[] { |
| "p/X.java", |
| "package p;\n" + |
| "public class X {\n" + |
| " class XX {\n" + |
| " public static String s;\n" + |
| " void foo(String s1) {\n" + |
| " X.XX.s = s;" + |
| " }\n" + |
| " }\n" + |
| "}\n", |
| }, |
| "----------\n" + |
| "1. ERROR in p\\X.java (at line 4)\n" + |
| " public static String s;\n" + |
| " ^\n" + |
| "The field s cannot be declared static in a non-static inner type, unless initialized with a constant expression\n" + |
| "----------\n" + |
| "2. ERROR in p\\X.java (at line 6)\n" + |
| " X.XX.s = s; }\n" + |
| " ^^^^^^^^^^\n" + |
| "The assignment to variable s has no effect\n" + |
| "----------\n"); |
| } |
| // https://bugs.eclipse.org/bugs/show_bug.cgi?id=200724 |
| // swap lhs and rhs |
| public void test051() { |
| this.runNegativeTest( |
| new String[] { |
| "X.java", |
| "public class X {\n" + |
| " public static String s;\n" + |
| " void foo(String s1) {\n" + |
| " s = X.s;" + |
| " }\n" + |
| "}\n", |
| }, |
| "----------\n" + |
| "1. ERROR in X.java (at line 4)\n" + |
| " s = X.s; }\n" + |
| " ^^^^^^^\n" + |
| "The assignment to variable s has no effect\n" + |
| "----------\n", |
| JavacTestOptions.Excuse.EclipseWarningConfiguredAsError /* javac test options */); |
| } |
| // https://bugs.eclipse.org/bugs/show_bug.cgi?id=206017 |
| public void test052() { |
| this.runNegativeTest( |
| new String[] { |
| "X.java", |
| "public class X {\n" + |
| " void foo() {\n" + |
| " int i = \"aaa\";\n" + |
| " i = \"bbb\";\n" + |
| " }\n" + |
| "}" |
| }, |
| "----------\n" + |
| "1. ERROR in X.java (at line 3)\n" + |
| " int i = \"aaa\";\n" + |
| " ^^^^^\n" + |
| "Type mismatch: cannot convert from String to int\n" + |
| "----------\n" + |
| "2. ERROR in X.java (at line 4)\n" + |
| " i = \"bbb\";\n" + |
| " ^^^^^\n" + |
| "Type mismatch: cannot convert from String to int\n" + |
| "----------\n"); |
| } |
| // https://bugs.eclipse.org/bugs/show_bug.cgi?id=206017 |
| public void test053() { |
| this.runNegativeTest( |
| new String[] { |
| "X.java", |
| "public class X {\n" + |
| " int i = \"aaa\";\n" + |
| " { \n" + |
| " i = \"bbb\";\n" + |
| " }\n" + |
| "}" |
| }, |
| "----------\n" + |
| "1. ERROR in X.java (at line 2)\n" + |
| " int i = \"aaa\";\n" + |
| " ^^^^^\n" + |
| "Type mismatch: cannot convert from String to int\n" + |
| "----------\n" + |
| "2. ERROR in X.java (at line 4)\n" + |
| " i = \"bbb\";\n" + |
| " ^^^^^\n" + |
| "Type mismatch: cannot convert from String to int\n" + |
| "----------\n"); |
| } |
| // https://bugs.eclipse.org/bugs/show_bug.cgi?id=235543 |
| public void _test054_definite_unassignment_try_catch() { |
| runNegativeTest( |
| // test directory preparation |
| new String[] { /* test files */ |
| "X.java", |
| "public class X {\n" + |
| " public static void main(String args[]) {\n" + |
| " final int i;\n" + |
| " try {\n" + |
| " if (false) {\n" + |
| " i = 0;\n" + |
| " System.out.println(i);\n" + |
| " throw new MyException();\n" + |
| " }\n" + |
| " } catch (Exception e) {\n" + |
| " i = 1; // missing error\n" + |
| " }\n" + |
| " }\n" + |
| "}\n" + |
| "class MyException extends Exception {\n" + |
| " private static final long serialVersionUID = 1L;\n" + |
| "}" |
| }, |
| // compiler results |
| "----------\n" + /* expected compiler log */ |
| "1. ERROR in X.java (at line 11)\n" + |
| " i = 1;\n" + |
| " ^\n" + |
| "The final local variable i may already have been assigned\n" + |
| "----------\n"); |
| } |
| // https://bugs.eclipse.org/bugs/show_bug.cgi?id=235543 |
| // variant |
| public void test055_definite_unassignment_try_catch() { |
| runNegativeTest( |
| // test directory preparation |
| new String[] { /* test files */ |
| "X.java", |
| "public class X {\n" + |
| " public static void main(String args[]) {\n" + |
| " final int i;\n" + |
| " try {\n" + |
| " if (false) {\n" + |
| " i = 0;\n" + |
| " System.out.println(i);\n" + |
| " throw new MyException();\n" + |
| " }\n" + |
| " } catch (MyException e) {\n" + |
| " i = 1;\n" + |
| " }\n" + |
| " }\n" + |
| "}\n" + |
| "class MyException extends Exception {\n" + |
| " private static final long serialVersionUID = 1L;\n" + |
| "}" |
| }, |
| // compiler results |
| "----------\n" + /* expected compiler log */ |
| "1. ERROR in X.java (at line 11)\n" + |
| " i = 1;\n" + |
| " ^\n" + |
| "The final local variable i may already have been assigned\n" + |
| "----------\n", |
| // javac options |
| JavacTestOptions.EclipseJustification.EclipseBug235543 /* javac test options */); |
| } |
| // https://bugs.eclipse.org/bugs/show_bug.cgi?id=235546 |
| public void test056_definite_unassignment_infinite_for_loop() { |
| runConformTest( |
| // test directory preparation |
| true /* flush output directory */, |
| new String[] { /* test files */ |
| "X.java", |
| "public class X {\n" + |
| " public static void main(String args[]) {\n" + |
| " final int i;\n" + |
| " for (;true;) {\n" + |
| " if (true) {\n" + |
| " break;\n" + |
| " } else {\n" + |
| " i = 0;\n" + |
| " }\n" + |
| " }\n" + |
| " i = 1;\n" + |
| " System.out.println(i);\n" + |
| " }\n" + |
| "}" |
| }, |
| // compiler results |
| null /* do not check compiler log */, |
| // runtime results |
| "1" /* expected output string */, |
| "" /* expected error string */, |
| JavacTestOptions.EclipseJustification.EclipseBug235546 /* javac test options */); |
| } |
| // https://bugs.eclipse.org/bugs/show_bug.cgi?id=235546 |
| // variant |
| public void test057_definite_unassignment_infinite_while_loop() { |
| runConformTest( |
| // test directory preparation |
| true /* flush output directory */, |
| new String[] { /* test files */ |
| "X.java", |
| "public class X {\n" + |
| " public static void main(String args[]) {\n" + |
| " final int i;\n" + |
| " while (true) {\n" + |
| " if (true) {\n" + |
| " break;\n" + |
| " } else {\n" + |
| " i = 0;\n" + |
| " }\n" + |
| " }\n" + |
| " i = 1;\n" + |
| " System.out.println(i);\n" + |
| " }\n" + |
| "}" |
| }, |
| // compiler results |
| null /* do not check compiler log */, |
| // runtime results |
| "1" /* expected output string */, |
| "" /* expected error string */, |
| JavacTestOptions.EclipseJustification.EclipseBug235546 /* javac test options */); |
| } |
| // https://bugs.eclipse.org/bugs/show_bug.cgi?id=235550 |
| public void _test058_definite_unassignment_try_finally() { |
| runNegativeTest( |
| // test directory preparation |
| new String[] { /* test files */ |
| "X.java", |
| "public class X {\n" + |
| " public static void main(String args[]) {\n" + |
| " final int i;\n" + |
| " do {\n" + |
| " try {\n" + |
| " break;\n" + |
| " } finally {\n" + |
| " i = 0;\n" + |
| " }\n" + |
| " } while (args.length > 0);\n" + |
| " }\n" + |
| "}" |
| }, |
| // compiler results |
| "----------\n" + /* expected compiler log */ |
| "1. ERROR in X.java...\n" + |
| "----------\n"); |
| } |
| // https://bugs.eclipse.org/bugs/show_bug.cgi?id=235555 |
| public void test059_definite_unassignment_assign_in_for_condition() { |
| runConformTest( |
| // test directory preparation |
| true /* flush output directory */, |
| new String[] { /* test files */ |
| "X.java", |
| "public class X {\n" + |
| " public static void main(String args[]) {\n" + |
| " final int i;\n" + |
| " for (; 0 < (i = 1); i = i + 1) {\n" + |
| " break;\n" + |
| " }\n" + |
| " System.out.println(\"SUCCESS\");\n" + |
| " }\n" + |
| "}" |
| }, |
| // compiler results |
| null /* do not check compiler log */, |
| // runtime results |
| "SUCCESS" /* expected output string */, |
| "" /* expected error string */, |
| JavacTestOptions.JavacHasABug.JavacBug4660984 /* javac test options */); |
| } |
| // https://bugs.eclipse.org/bugs/show_bug.cgi?id=235555 |
| // variant |
| public void test060_definite_unassignment_assign_in_for_condition() { |
| runConformTest( |
| // test directory preparation |
| new String[] { /* test files */ |
| "X.java", |
| "public class X {\n" + |
| " public static void main(String args[]) {\n" + |
| " final int i;\n" + |
| " for (; 0 < (i = 1);) {\n" + |
| " break;\n" + |
| " }\n" + |
| " System.out.println(\"SUCCESS\");\n" + |
| " }\n" + |
| "}" |
| }, |
| // runtime results |
| "SUCCESS" /* expected output string */); |
| } |
| // https://bugs.eclipse.org/bugs/show_bug.cgi?id=241841 |
| public void test061() { |
| this.runNegativeTest( |
| new String[] { |
| "X.java", |
| "public class X {\n" + |
| " java.sql.Date d = new java.util.Date();\n" + |
| "}\n", |
| }, |
| "----------\n" + |
| "1. ERROR in X.java (at line 2)\n" + |
| " java.sql.Date d = new java.util.Date();\n" + |
| " ^^^^^^^^^^^^^^^^^^^^\n" + |
| "Type mismatch: cannot convert from java.util.Date to java.sql.Date\n" + |
| "----------\n"); |
| } |
| |
| // challenge widening conversion |
| public void test062() { |
| this.runNegativeTest( |
| new String[] { |
| "X.java", |
| "public class X {\n" + |
| " byte b;\n" + |
| " short s;\n" + |
| " char c;\n" + |
| " boolean z;\n" + |
| " int i;\n" + |
| " long j;\n" + |
| " float f;\n" + |
| " double d;\n" + |
| "void foo() {\n" + |
| " boolean[] booleans = { b, s, c, z, i, j, f, d, };\n" + |
| " byte[] bytes = { b, s, c, z, i, j, f, d, };\n" + |
| " short[] shorts = { b, s, c, z, i, j, f, d, };\n" + |
| " char[] chars = { b, s, c, z, i, j, f, d, };\n" + |
| " int[] ints = { b, s, c, z, i, j, f, d, };\n" + |
| " long[] longs = { b, s, c, z, i, j, f, d, };\n" + |
| " float[] floats = { b, s, c, z, i, j, f, d, };\n" + |
| " double[] doubles = { b, s, c, z, i, j, f, d, };\n" + |
| "}\n" + |
| "}\n", |
| }, |
| "----------\n" + |
| "1. ERROR in X.java (at line 11)\n" + |
| " boolean[] booleans = { b, s, c, z, i, j, f, d, };\n" + |
| " ^\n" + |
| "Type mismatch: cannot convert from byte to boolean\n" + |
| "----------\n" + |
| "2. ERROR in X.java (at line 11)\n" + |
| " boolean[] booleans = { b, s, c, z, i, j, f, d, };\n" + |
| " ^\n" + |
| "Type mismatch: cannot convert from short to boolean\n" + |
| "----------\n" + |
| "3. ERROR in X.java (at line 11)\n" + |
| " boolean[] booleans = { b, s, c, z, i, j, f, d, };\n" + |
| " ^\n" + |
| "Type mismatch: cannot convert from char to boolean\n" + |
| "----------\n" + |
| "4. ERROR in X.java (at line 11)\n" + |
| " boolean[] booleans = { b, s, c, z, i, j, f, d, };\n" + |
| " ^\n" + |
| "Type mismatch: cannot convert from int to boolean\n" + |
| "----------\n" + |
| "5. ERROR in X.java (at line 11)\n" + |
| " boolean[] booleans = { b, s, c, z, i, j, f, d, };\n" + |
| " ^\n" + |
| "Type mismatch: cannot convert from long to boolean\n" + |
| "----------\n" + |
| "6. ERROR in X.java (at line 11)\n" + |
| " boolean[] booleans = { b, s, c, z, i, j, f, d, };\n" + |
| " ^\n" + |
| "Type mismatch: cannot convert from float to boolean\n" + |
| "----------\n" + |
| "7. ERROR in X.java (at line 11)\n" + |
| " boolean[] booleans = { b, s, c, z, i, j, f, d, };\n" + |
| " ^\n" + |
| "Type mismatch: cannot convert from double to boolean\n" + |
| "----------\n" + |
| "8. ERROR in X.java (at line 12)\n" + |
| " byte[] bytes = { b, s, c, z, i, j, f, d, };\n" + |
| " ^\n" + |
| "Type mismatch: cannot convert from short to byte\n" + |
| "----------\n" + |
| "9. ERROR in X.java (at line 12)\n" + |
| " byte[] bytes = { b, s, c, z, i, j, f, d, };\n" + |
| " ^\n" + |
| "Type mismatch: cannot convert from char to byte\n" + |
| "----------\n" + |
| "10. ERROR in X.java (at line 12)\n" + |
| " byte[] bytes = { b, s, c, z, i, j, f, d, };\n" + |
| " ^\n" + |
| "Type mismatch: cannot convert from boolean to byte\n" + |
| "----------\n" + |
| "11. ERROR in X.java (at line 12)\n" + |
| " byte[] bytes = { b, s, c, z, i, j, f, d, };\n" + |
| " ^\n" + |
| "Type mismatch: cannot convert from int to byte\n" + |
| "----------\n" + |
| "12. ERROR in X.java (at line 12)\n" + |
| " byte[] bytes = { b, s, c, z, i, j, f, d, };\n" + |
| " ^\n" + |
| "Type mismatch: cannot convert from long to byte\n" + |
| "----------\n" + |
| "13. ERROR in X.java (at line 12)\n" + |
| " byte[] bytes = { b, s, c, z, i, j, f, d, };\n" + |
| " ^\n" + |
| "Type mismatch: cannot convert from float to byte\n" + |
| "----------\n" + |
| "14. ERROR in X.java (at line 12)\n" + |
| " byte[] bytes = { b, s, c, z, i, j, f, d, };\n" + |
| " ^\n" + |
| "Type mismatch: cannot convert from double to byte\n" + |
| "----------\n" + |
| "15. ERROR in X.java (at line 13)\n" + |
| " short[] shorts = { b, s, c, z, i, j, f, d, };\n" + |
| " ^\n" + |
| "Type mismatch: cannot convert from char to short\n" + |
| "----------\n" + |
| "16. ERROR in X.java (at line 13)\n" + |
| " short[] shorts = { b, s, c, z, i, j, f, d, };\n" + |
| " ^\n" + |
| "Type mismatch: cannot convert from boolean to short\n" + |
| "----------\n" + |
| "17. ERROR in X.java (at line 13)\n" + |
| " short[] shorts = { b, s, c, z, i, j, f, d, };\n" + |
| " ^\n" + |
| "Type mismatch: cannot convert from int to short\n" + |
| "----------\n" + |
| "18. ERROR in X.java (at line 13)\n" + |
| " short[] shorts = { b, s, c, z, i, j, f, d, };\n" + |
| " ^\n" + |
| "Type mismatch: cannot convert from long to short\n" + |
| "----------\n" + |
| "19. ERROR in X.java (at line 13)\n" + |
| " short[] shorts = { b, s, c, z, i, j, f, d, };\n" + |
| " ^\n" + |
| "Type mismatch: cannot convert from float to short\n" + |
| "----------\n" + |
| "20. ERROR in X.java (at line 13)\n" + |
| " short[] shorts = { b, s, c, z, i, j, f, d, };\n" + |
| " ^\n" + |
| "Type mismatch: cannot convert from double to short\n" + |
| "----------\n" + |
| "21. ERROR in X.java (at line 14)\n" + |
| " char[] chars = { b, s, c, z, i, j, f, d, };\n" + |
| " ^\n" + |
| "Type mismatch: cannot convert from byte to char\n" + |
| "----------\n" + |
| "22. ERROR in X.java (at line 14)\n" + |
| " char[] chars = { b, s, c, z, i, j, f, d, };\n" + |
| " ^\n" + |
| "Type mismatch: cannot convert from short to char\n" + |
| "----------\n" + |
| "23. ERROR in X.java (at line 14)\n" + |
| " char[] chars = { b, s, c, z, i, j, f, d, };\n" + |
| " ^\n" + |
| "Type mismatch: cannot convert from boolean to char\n" + |
| "----------\n" + |
| "24. ERROR in X.java (at line 14)\n" + |
| " char[] chars = { b, s, c, z, i, j, f, d, };\n" + |
| " ^\n" + |
| "Type mismatch: cannot convert from int to char\n" + |
| "----------\n" + |
| "25. ERROR in X.java (at line 14)\n" + |
| " char[] chars = { b, s, c, z, i, j, f, d, };\n" + |
| " ^\n" + |
| "Type mismatch: cannot convert from long to char\n" + |
| "----------\n" + |
| "26. ERROR in X.java (at line 14)\n" + |
| " char[] chars = { b, s, c, z, i, j, f, d, };\n" + |
| " ^\n" + |
| "Type mismatch: cannot convert from float to char\n" + |
| "----------\n" + |
| "27. ERROR in X.java (at line 14)\n" + |
| " char[] chars = { b, s, c, z, i, j, f, d, };\n" + |
| " ^\n" + |
| "Type mismatch: cannot convert from double to char\n" + |
| "----------\n" + |
| "28. ERROR in X.java (at line 15)\n" + |
| " int[] ints = { b, s, c, z, i, j, f, d, };\n" + |
| " ^\n" + |
| "Type mismatch: cannot convert from boolean to int\n" + |
| "----------\n" + |
| "29. ERROR in X.java (at line 15)\n" + |
| " int[] ints = { b, s, c, z, i, j, f, d, };\n" + |
| " ^\n" + |
| "Type mismatch: cannot convert from long to int\n" + |
| "----------\n" + |
| "30. ERROR in X.java (at line 15)\n" + |
| " int[] ints = { b, s, c, z, i, j, f, d, };\n" + |
| " ^\n" + |
| "Type mismatch: cannot convert from float to int\n" + |
| "----------\n" + |
| "31. ERROR in X.java (at line 15)\n" + |
| " int[] ints = { b, s, c, z, i, j, f, d, };\n" + |
| " ^\n" + |
| "Type mismatch: cannot convert from double to int\n" + |
| "----------\n" + |
| "32. ERROR in X.java (at line 16)\n" + |
| " long[] longs = { b, s, c, z, i, j, f, d, };\n" + |
| " ^\n" + |
| "Type mismatch: cannot convert from boolean to long\n" + |
| "----------\n" + |
| "33. ERROR in X.java (at line 16)\n" + |
| " long[] longs = { b, s, c, z, i, j, f, d, };\n" + |
| " ^\n" + |
| "Type mismatch: cannot convert from float to long\n" + |
| "----------\n" + |
| "34. ERROR in X.java (at line 16)\n" + |
| " long[] longs = { b, s, c, z, i, j, f, d, };\n" + |
| " ^\n" + |
| "Type mismatch: cannot convert from double to long\n" + |
| "----------\n" + |
| "35. ERROR in X.java (at line 17)\n" + |
| " float[] floats = { b, s, c, z, i, j, f, d, };\n" + |
| " ^\n" + |
| "Type mismatch: cannot convert from boolean to float\n" + |
| "----------\n" + |
| "36. ERROR in X.java (at line 17)\n" + |
| " float[] floats = { b, s, c, z, i, j, f, d, };\n" + |
| " ^\n" + |
| "Type mismatch: cannot convert from double to float\n" + |
| "----------\n" + |
| "37. ERROR in X.java (at line 18)\n" + |
| " double[] doubles = { b, s, c, z, i, j, f, d, };\n" + |
| " ^\n" + |
| "Type mismatch: cannot convert from boolean to double\n" + |
| "----------\n"); |
| } |
| //challenge narrowing conversion |
| public void test063() { |
| this.runNegativeTest( |
| new String[] { |
| "X.java", |
| "public class X {\n" + |
| " byte b;\n" + |
| " short s;\n" + |
| " char c;\n" + |
| " boolean z;\n" + |
| " int i;\n" + |
| " long j;\n" + |
| " float f;\n" + |
| " double d;\n" + |
| "void foo() {\n" + |
| " boolean[] booleans = { (boolean)b, (boolean)s, (boolean)c, (boolean)z, (boolean)i, (boolean)j, (boolean)f, (boolean)d, };\n" + |
| " byte[] bytes = { (byte)b, (byte)s, (byte)c, (byte)z, (byte)i, (byte)j, (byte)f, (byte)d, };\n" + |
| " short[] shorts = { (short)b, (short)s, (short)c, (short)z, (short)i, (short)j, (short)f, (short)d, };\n" + |
| " char[] chars = { (char)b, (char)s, (char)c, (char)z, (char)i, (char)j, (char)f, (char)d, };\n" + |
| " int[] ints = { (int)b, (int)s, (int)c, (int)z, (int)i, (int)j, (int)f, (int)d, };\n" + |
| " long[] longs = { (long)b, (long)s, (long)c, (long)z, (long)i, (long)j, (long)f, (long)d, };\n" + |
| " float[] floats = { (float)b, (float)s, (float)c, (float)z, (float)i, (float)j, (float)f, (float)d, };\n" + |
| " double[] doubles = { (double)b, (double)s, (double)c, (double)z, (double)i, (double)j, (double)f, (double)d, };\n" + |
| "}\n" + |
| "}\n", |
| }, |
| "----------\n" + |
| "1. ERROR in X.java (at line 11)\n" + |
| " boolean[] booleans = { (boolean)b, (boolean)s, (boolean)c, (boolean)z, (boolean)i, (boolean)j, (boolean)f, (boolean)d, };\n" + |
| " ^^^^^^^^^^\n" + |
| "Cannot cast from byte to boolean\n" + |
| "----------\n" + |
| "2. ERROR in X.java (at line 11)\n" + |
| " boolean[] booleans = { (boolean)b, (boolean)s, (boolean)c, (boolean)z, (boolean)i, (boolean)j, (boolean)f, (boolean)d, };\n" + |
| " ^^^^^^^^^^\n" + |
| "Cannot cast from short to boolean\n" + |
| "----------\n" + |
| "3. ERROR in X.java (at line 11)\n" + |
| " boolean[] booleans = { (boolean)b, (boolean)s, (boolean)c, (boolean)z, (boolean)i, (boolean)j, (boolean)f, (boolean)d, };\n" + |
| " ^^^^^^^^^^\n" + |
| "Cannot cast from char to boolean\n" + |
| "----------\n" + |
| "4. ERROR in X.java (at line 11)\n" + |
| " boolean[] booleans = { (boolean)b, (boolean)s, (boolean)c, (boolean)z, (boolean)i, (boolean)j, (boolean)f, (boolean)d, };\n" + |
| " ^^^^^^^^^^\n" + |
| "Cannot cast from int to boolean\n" + |
| "----------\n" + |
| "5. ERROR in X.java (at line 11)\n" + |
| " boolean[] booleans = { (boolean)b, (boolean)s, (boolean)c, (boolean)z, (boolean)i, (boolean)j, (boolean)f, (boolean)d, };\n" + |
| " ^^^^^^^^^^\n" + |
| "Cannot cast from long to boolean\n" + |
| "----------\n" + |
| "6. ERROR in X.java (at line 11)\n" + |
| " boolean[] booleans = { (boolean)b, (boolean)s, (boolean)c, (boolean)z, (boolean)i, (boolean)j, (boolean)f, (boolean)d, };\n" + |
| " ^^^^^^^^^^\n" + |
| "Cannot cast from float to boolean\n" + |
| "----------\n" + |
| "7. ERROR in X.java (at line 11)\n" + |
| " boolean[] booleans = { (boolean)b, (boolean)s, (boolean)c, (boolean)z, (boolean)i, (boolean)j, (boolean)f, (boolean)d, };\n" + |
| " ^^^^^^^^^^\n" + |
| "Cannot cast from double to boolean\n" + |
| "----------\n" + |
| "8. ERROR in X.java (at line 12)\n" + |
| " byte[] bytes = { (byte)b, (byte)s, (byte)c, (byte)z, (byte)i, (byte)j, (byte)f, (byte)d, };\n" + |
| " ^^^^^^^\n" + |
| "Cannot cast from boolean to byte\n" + |
| "----------\n" + |
| "9. ERROR in X.java (at line 13)\n" + |
| " short[] shorts = { (short)b, (short)s, (short)c, (short)z, (short)i, (short)j, (short)f, (short)d, };\n" + |
| " ^^^^^^^^\n" + |
| "Cannot cast from boolean to short\n" + |
| "----------\n" + |
| "10. ERROR in X.java (at line 14)\n" + |
| " char[] chars = { (char)b, (char)s, (char)c, (char)z, (char)i, (char)j, (char)f, (char)d, };\n" + |
| " ^^^^^^^\n" + |
| "Cannot cast from boolean to char\n" + |
| "----------\n" + |
| "11. ERROR in X.java (at line 15)\n" + |
| " int[] ints = { (int)b, (int)s, (int)c, (int)z, (int)i, (int)j, (int)f, (int)d, };\n" + |
| " ^^^^^^\n" + |
| "Cannot cast from boolean to int\n" + |
| "----------\n" + |
| "12. ERROR in X.java (at line 16)\n" + |
| " long[] longs = { (long)b, (long)s, (long)c, (long)z, (long)i, (long)j, (long)f, (long)d, };\n" + |
| " ^^^^^^^\n" + |
| "Cannot cast from boolean to long\n" + |
| "----------\n" + |
| "13. ERROR in X.java (at line 17)\n" + |
| " float[] floats = { (float)b, (float)s, (float)c, (float)z, (float)i, (float)j, (float)f, (float)d, };\n" + |
| " ^^^^^^^^\n" + |
| "Cannot cast from boolean to float\n" + |
| "----------\n" + |
| "14. ERROR in X.java (at line 18)\n" + |
| " double[] doubles = { (double)b, (double)s, (double)c, (double)z, (double)i, (double)j, (double)f, (double)d, };\n" + |
| " ^^^^^^^^^\n" + |
| "Cannot cast from boolean to double\n" + |
| "----------\n"); |
| } |
| public void test064() { |
| this.runConformTest( |
| new String[] { |
| "X.java", |
| "public class X {\n" + |
| " public static void main(String[] args) {\n" + |
| " byte b = (byte)1;\n" + |
| " b += 1;\n" + |
| " System.out.print(b);\n" + |
| " }\n" + |
| "}\n", |
| }, |
| "2" |
| ); |
| } |
| // https://bugs.eclipse.org/bugs/show_bug.cgi?id=282891 |
| public void test065() { |
| Map options = getCompilerOptions(); |
| options.put(CompilerOptions.OPTION_ReportComparingIdentical, CompilerOptions.ERROR); |
| this.runNegativeTest( |
| new String[] { |
| "X.java", |
| "public class X {\n" + |
| " protected boolean foo = false;\n" + |
| " public boolean test() {\n" + |
| " return foo || (foo = foo());\n" + |
| " }\n" + |
| " public boolean test2() {\n" + |
| " return foo && (foo = foo());\n" + |
| " }\n" + |
| " public boolean test3() {\n" + |
| " return foo && (foo = foo);\n" + |
| " }\n" + |
| " boolean foo() { return true; }\n" + |
| "}" |
| }, |
| "----------\n" + |
| "1. ERROR in X.java (at line 10)\n" + |
| " return foo && (foo = foo);\n" + |
| " ^^^^^^^^^^^\n" + |
| "The assignment to variable foo has no effect\n" + |
| "----------\n", |
| null, |
| true, |
| options |
| ); |
| } |
| //https://bugs.eclipse.org/bugs/show_bug.cgi?id=290376 |
| public void test066() { |
| Map options = getCompilerOptions(); |
| options.put(CompilerOptions.OPTION_ReportComparingIdentical, CompilerOptions.ERROR); |
| this.runNegativeTest( |
| new String[] { |
| "X.java", |
| "public class X {\n" + |
| " public boolean test() {\n" + |
| " int i = 1;\n" + |
| " if (i != (i = 2)) {\n" + |
| " System.out.println(\"The first warning is unjust.\");\n" + |
| " }\n" + |
| " if ((i = 3) != i) {\n" + |
| " System.out.println(\"The second warning is just.\");\n" + |
| " }\n" + |
| " return false;\n" + |
| " }\n" + |
| "}" |
| }, |
| "----------\n" + |
| "1. ERROR in X.java (at line 7)\n" + |
| " if ((i = 3) != i) {\n" + |
| " ^^^^^^^^^^^^\n" + |
| "Comparing identical expressions\n" + |
| "----------\n", |
| null, |
| true, |
| options |
| ); |
| } |
| //https://bugs.eclipse.org/bugs/show_bug.cgi?id=290376 |
| public void test067() { |
| Map options = getCompilerOptions(); |
| options.put(CompilerOptions.OPTION_ReportComparingIdentical, CompilerOptions.ERROR); |
| this.runNegativeTest( |
| new String[] { |
| "X.java", |
| "public class X {\n" + |
| " public boolean test() {\n" + |
| " String s = \"Hello World\";\n" + |
| " if (s != (s = \"\")) {\n" + |
| " System.out.println(\"The first warning is unjust.\");\n" + |
| " }\n" + |
| " if ((s = \"\") != s) {\n" + |
| " System.out.println(\"The second warning is just.\");\n" + |
| " }\n" + |
| " return false;\n" + |
| " }\n" + |
| "}" |
| }, |
| "----------\n" + |
| "1. ERROR in X.java (at line 7)\n" + |
| " if ((s = \"\") != s) {\n" + |
| " ^^^^^^^^^^^^^\n" + |
| "Comparing identical expressions\n" + |
| "----------\n", |
| null, |
| true, |
| options |
| ); |
| } |
| // https://bugs.eclipse.org/bugs/show_bug.cgi?id=362279 |
| public void test068() { |
| this.runNegativeTest( |
| new String[] { |
| "X.java", |
| "public class X {\n" + |
| " Integer f = 'a'; // Field declaration.\n" + |
| " public Integer main() {\n" + |
| " Integer i = 'a'; // local declaration with initialization.\n" + |
| " i = 'a'; // assignment\n" + |
| " Integer [] ia = new Integer [] { 'a' }; // array initializer.\n" + |
| " return 'a'; // return statement.\n" + |
| " switch (i) {\n" + |
| " case 'a' : // case statement\n" + |
| " }\n" + |
| " }\n" + |
| "}\n" |
| }, |
| this.complianceLevel < ClassFileConstants.JDK1_5 ? |
| "----------\n" + |
| "1. ERROR in X.java (at line 2)\n" + |
| " Integer f = \'a\'; // Field declaration.\n" + |
| " ^^^\n" + |
| "Type mismatch: cannot convert from char to Integer\n" + |
| "----------\n" + |
| "2. ERROR in X.java (at line 4)\n" + |
| " Integer i = \'a\'; // local declaration with initialization.\n" + |
| " ^^^\n" + |
| "Type mismatch: cannot convert from char to Integer\n" + |
| "----------\n" + |
| "3. ERROR in X.java (at line 5)\n" + |
| " i = \'a\'; // assignment\n" + |
| " ^^^\n" + |
| "Type mismatch: cannot convert from char to Integer\n" + |
| "----------\n" + |
| "4. ERROR in X.java (at line 6)\n" + |
| " Integer [] ia = new Integer [] { \'a\' }; // array initializer.\n" + |
| " ^^^\n" + |
| "Type mismatch: cannot convert from char to Integer\n" + |
| "----------\n" + |
| "5. ERROR in X.java (at line 7)\n" + |
| " return \'a\'; // return statement.\n" + |
| " ^^^\n" + |
| "Type mismatch: cannot convert from char to Integer\n" + |
| "----------\n" + |
| "6. ERROR in X.java (at line 8)\n" + |
| " switch (i) {\n" + |
| " ^\n" + |
| "Cannot switch on a value of type Integer. Only convertible int values or enum variables are permitted\n" + |
| "----------\n" : |
| "----------\n" + |
| "1. ERROR in X.java (at line 2)\n" + |
| " Integer f = \'a\'; // Field declaration.\n" + |
| " ^^^\n" + |
| "Type mismatch: cannot convert from char to Integer\n" + |
| "----------\n" + |
| "2. ERROR in X.java (at line 4)\n" + |
| " Integer i = \'a\'; // local declaration with initialization.\n" + |
| " ^^^\n" + |
| "Type mismatch: cannot convert from char to Integer\n" + |
| "----------\n" + |
| "3. ERROR in X.java (at line 5)\n" + |
| " i = \'a\'; // assignment\n" + |
| " ^^^\n" + |
| "Type mismatch: cannot convert from char to Integer\n" + |
| "----------\n" + |
| "4. ERROR in X.java (at line 6)\n" + |
| " Integer [] ia = new Integer [] { \'a\' }; // array initializer.\n" + |
| " ^^^\n" + |
| "Type mismatch: cannot convert from char to Integer\n" + |
| "----------\n" + |
| "5. ERROR in X.java (at line 7)\n" + |
| " return \'a\'; // return statement.\n" + |
| " ^^^\n" + |
| "Type mismatch: cannot convert from char to Integer\n" + |
| "----------\n" + |
| "6. ERROR in X.java (at line 9)\n" + |
| " case \'a\' : // case statement\n" + |
| " ^^^\n" + |
| "Type mismatch: cannot convert from char to Integer\n" + |
| "----------\n"); |
| } |
| public static Class testClass() { |
| return AssignmentTest.class; |
| } |
| } |