### Eclipse Workspace Patch 1.0
#P org.eclipse.jdt.core
Index: batch/org/eclipse/jdt/internal/compiler/batch/Main.java
===================================================================
RCS file: /cvsroot/eclipse/org.eclipse.jdt.core/batch/org/eclipse/jdt/internal/compiler/batch/Main.java,v
retrieving revision 1.365
diff -u -r1.365 Main.java
--- batch/org/eclipse/jdt/internal/compiler/batch/Main.java	28 Jul 2011 17:07:36 -0000	1.365
+++ batch/org/eclipse/jdt/internal/compiler/batch/Main.java	18 Aug 2011 18:02:58 -0000
@@ -2204,23 +2204,20 @@
 							this.bind("configure.invalidWarningConfiguration", warningOption)); //$NON-NLS-1$
 					}
 					int warnTokenStart;
-					boolean isEnabling, allowPlusOrMinus;
+					boolean isEnabling;
 					switch (warningOption.charAt(6)) {
 						case '+' :
 							warnTokenStart = 7;
 							isEnabling = true;
-							allowPlusOrMinus = true;
 							break;
 						case '-' :
 							warnTokenStart = 7;
 							isEnabling = false; // specified warnings are disabled
-							allowPlusOrMinus = true;
 							break;
 						default:
 							disableWarnings();
 							warnTokenStart = 6;
 							isEnabling = true;
-							allowPlusOrMinus = false;
 					}
 
 					StringTokenizer tokenizer =
@@ -2236,22 +2233,12 @@
 						tokenCounter++;
 						switch(token.charAt(0)) {
 							case '+' :
-								if (allowPlusOrMinus) {
-									isEnabling = true;
-									token = token.substring(1);
-								} else {
-									throw new IllegalArgumentException(
-											this.bind("configure.invalidUsageOfPlusOption", token)); //$NON-NLS-1$
-								}
+								isEnabling = true;
+								token = token.substring(1);
 								break;
 							case '-' :
-								if (allowPlusOrMinus) {
-									isEnabling = false;
-									token = token.substring(1);
-								} else {
-									throw new IllegalArgumentException(
-											this.bind("configure.invalidUsageOfMinusOption", token)); //$NON-NLS-1$
-								}
+								isEnabling = false;
+								token = token.substring(1);
 						}
 						handleWarningToken(token, isEnabling);
 					}
@@ -2270,23 +2257,20 @@
 							this.bind("configure.invalidErrorConfiguration", errorOption)); //$NON-NLS-1$
 					}
 					int errorTokenStart;
-					boolean isEnabling, allowPlusOrMinus;
+					boolean isEnabling;
 					switch (errorOption.charAt(5)) {
 						case '+' :
 							errorTokenStart = 6;
 							isEnabling = true;
-							allowPlusOrMinus = true;
 							break;
 						case '-' :
 							errorTokenStart = 6;
 							isEnabling = false; // specified errors are disabled
-							allowPlusOrMinus = true;
 							break;
 						default:
 							disableErrors();
 							errorTokenStart = 5;
 							isEnabling = true;
-							allowPlusOrMinus = false;
 					}
 
 					StringTokenizer tokenizer =
@@ -2298,22 +2282,12 @@
 						tokenCounter++;
 						switch(token.charAt(0)) {
 							case '+' :
-								if (allowPlusOrMinus) {
-									isEnabling = true;
-									token = token.substring(1);
-								} else {
-									throw new IllegalArgumentException(
-											this.bind("configure.invalidUsageOfPlusOption", token)); //$NON-NLS-1$
-								}
+								isEnabling = true;
+								token = token.substring(1);
 								break;
 							case '-' :
-								if (allowPlusOrMinus) {
-									isEnabling = false;
-									token = token.substring(1);
-								} else {
-									throw new IllegalArgumentException(
-											this.bind("configure.invalidUsageOfMinusOption", token)); //$NON-NLS-1$
-								}
+								isEnabling = false;
+								token = token.substring(1);
 								break;
 						}
 						handleErrorToken(token, isEnabling);
@@ -2838,6 +2812,20 @@
 	}
 	this.options.put(CompilerOptions.OPTION_TaskTags, Util.EMPTY_STRING);
 }
+protected void enableAllWarnings() {
+	Object[] entries = this.options.entrySet().toArray();
+	for (int i = 0, max = entries.length; i < max; i++) {
+		Map.Entry entry = (Map.Entry) entries[i];
+		if (!(entry.getKey() instanceof String))
+			continue;
+		if (!(entry.getValue() instanceof String))
+			continue;
+		if (((String) entry.getValue()).equals(CompilerOptions.IGNORE)) {
+			this.options.put(entry.getKey(), CompilerOptions.WARNING);
+		}
+	}
+	this.options.put(CompilerOptions.OPTION_TaskTags, Util.EMPTY_STRING);
+}
 protected void disableErrors() {
 	Object[] entries = this.options.entrySet().toArray();
 	for (int i = 0, max = entries.length; i < max; i++) {
@@ -3251,6 +3239,13 @@
 				setSeverity(CompilerOptions.OPTION_ReportMethodCanBeStatic, severity, isEnabling);
 				setSeverity(CompilerOptions.OPTION_ReportMethodCanBePotentiallyStatic, severity, isEnabling);
 				return;
+			} else if (token.equals("all")) { //$NON-NLS-1$
+				if (isEnabling) {
+					enableAllWarnings();
+				} else {
+					disableWarnings();
+				}
+				return;
 			}
 			break;
 		case 'b' :
Index: batch/org/eclipse/jdt/internal/compiler/batch/messages.properties
===================================================================
RCS file: /cvsroot/eclipse/org.eclipse.jdt.core/batch/org/eclipse/jdt/internal/compiler/batch/messages.properties,v
retrieving revision 1.994
diff -u -r1.994 messages.properties
--- batch/org/eclipse/jdt/internal/compiler/batch/messages.properties	16 Aug 2011 19:12:00 -0000	1.994
+++ batch/org/eclipse/jdt/internal/compiler/batch/messages.properties	18 Aug 2011 18:02:58 -0000
@@ -66,8 +66,6 @@
 configure.invalidErrorConfiguration = invalid error configuration: ''{0}''
 configure.invalidError = invalid error token: ''{0}''. Ignoring this error token and compiling
 configure.invalidErrorOption = invalid error option: ''{0}''. Must specify an error token
-configure.invalidUsageOfPlusOption=usage of ''+'' for ''{0}'' is illegal there
-configure.invalidUsageOfMinusOption=usage of ''-'' for ''{0}'' is illegal there
 
 ## configure.directoryNotExist = directory does not exist: {0}
 configure.unrecognizedOption = Unrecognized option : {0}
@@ -265,6 +263,7 @@
 \    -warn:<warnings separated by ,>    enable exactly the listed warnings\n\
 \    -warn:+<warnings separated by ,>   enable additional warnings\n\
 \    -warn:-<warnings separated by ,>   disable specific warnings\n\
+\      all                  enable all warnings\n\
 \      allDeadCode          dead code including trivial if(DEBUG) check\n\
 \      allDeprecation       deprecation including inside deprecated code\n\
 \      allJavadoc           invalid or missing javadoc\n\
#P org.eclipse.jdt.core.tests.compiler
Index: src/org/eclipse/jdt/core/tests/compiler/regression/BatchCompilerTest.java
===================================================================
RCS file: /cvsroot/eclipse/org.eclipse.jdt.core.tests.compiler/src/org/eclipse/jdt/core/tests/compiler/regression/BatchCompilerTest.java,v
retrieving revision 1.227
diff -u -r1.227 BatchCompilerTest.java
--- src/org/eclipse/jdt/core/tests/compiler/regression/BatchCompilerTest.java	8 Aug 2011 09:51:23 -0000	1.227
+++ src/org/eclipse/jdt/core/tests/compiler/regression/BatchCompilerTest.java	18 Aug 2011 18:02:59 -0000
@@ -1659,6 +1659,7 @@
         "    -warn:<warnings separated by ,>    enable exactly the listed warnings\n" + 
         "    -warn:+<warnings separated by ,>   enable additional warnings\n" + 
         "    -warn:-<warnings separated by ,>   disable specific warnings\n" + 
+        "      all                  enable all warnings\n" + 
         "      allDeadCode          dead code including trivial if(DEBUG) check\n" + 
         "      allDeprecation       deprecation including inside deprecated code\n" + 
         "      allJavadoc           invalid or missing javadoc\n" + 
@@ -8510,48 +8511,6 @@
 		"1 problem (1 warning)",
 		true);
 }
-// https://bugs.eclipse.org/bugs/show_bug.cgi?id=210518
-// variant
-public void test214_warn_options() {
-	// same source as 153, skip default checks
-	this.runNegativeTest(
-		new String[] {
-			"X.java",
-			"public class X {\n" +
-			"	public static void foo() {\n" +
-			"     String s = null;\n" +
-			"     s.toString();\n" +
-			"     String u;\n" +
-			"   }\n" +
-			"}",
-		},
-		"\"" + OUTPUT_DIR +  File.separator + "X.java\""
-		+ " -warn:null,-unused -proc:none -d \"" + OUTPUT_DIR + "\"",
-		"",
-		"usage of \'-\' for \'-unused\' is illegal there\n",
-		true);
-}
-// https://bugs.eclipse.org/bugs/show_bug.cgi?id=210518
-// variant
-public void test215_warn_options() {
-	// same source as 153, skip default checks
-	this.runNegativeTest(
-		new String[] {
-			"X.java",
-			"public class X {\n" +
-			"	public static void foo() {\n" +
-			"     String s = null;\n" +
-			"     s.toString();\n" +
-			"     String u;\n" +
-			"   }\n" +
-			"}",
-		},
-		"\"" + OUTPUT_DIR +  File.separator + "X.java\""
-		+ " -warn:null,+unused -proc:none -d \"" + OUTPUT_DIR + "\"",
-		"",
-		"usage of \'+\' for \'+unused\' is illegal there\n",
-		true);
-}
 // https://bugs.eclipse.org/bugs/show_bug.cgi?id=211588
 // variant - check impact of javadoc upon other warnings
 public void _test216a_warn_options() {
@@ -11398,24 +11357,6 @@
 		true);
 }
 //https://bugs.eclipse.org/bugs/show_bug.cgi?id=280784
-public void test295(){
-	this.runNegativeTest(
-		new String[] {
-			"src/X.java",
-			"public class X {\n" +
-			"}",
-		},
-		"\"" + OUTPUT_DIR +  File.separator + "src/X.java\""
-		+ " -cp \"" + LIB_DIR + "\""
-		+ " -sourcepath \"" + OUTPUT_DIR +  File.separator + "src\""
-		+ " -1.5 -g -preserveAllLocals"
-		+ " -proceedOnError -referenceInfo -err:raw,+discouraged"
-		+ " -d \"" + OUTPUT_DIR + File.separator + "bin\" ",
-		"",
-		"usage of \'+\' for \'+discouraged\' is illegal there\n",
-		true);
-}
-//https://bugs.eclipse.org/bugs/show_bug.cgi?id=280784
 public void test296(){
 	this.runNegativeTest(
 		new String[] {