Remove compatibility with pre 1.6 Ant

Ant 1.6.0 was released in 2003(!). Complicating the codebase to be
compatible with 22+ years old Ant versions is just not worth it.

Author: akurtakov

ant/org.eclipse.ant.launching/common/org/eclipse/ant/internal/launching/debug/AntDebugState.java

@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2005, 2015 IBM Corporation and others.
+ * Copyright (c) 2005, 2025 IBM Corporation and others.
  *
  * This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License 2.0
@@ -225,7 +225,7 @@ public Location getBreakpointLocation() {
 		if (considerTargetBreakpoints()) {
 			Target targetExecuting = getTargetExecuting();
 			if (targetExecuting != null) {
-				return getLocation(targetExecuting);
+				return targetExecuting.getLocation();
 			}
 		}
 		return null;
@@ -320,77 +320,15 @@ public void targetStarted(BuildEvent event) {
 		setConsiderTargetBreakpoints(true);
 	}
 
-	public int getLineNumber(Location location) {
-		try { // succeeds with Ant newer than 1.6
-			return location.getLineNumber();
-		}
-		catch (NoSuchMethodError e) {
-			// Ant before 1.6
-			String locationString = location.toString();
-			if (locationString.length() == 0) {
-				return 0;
-			}
-			// filename: lineNumber: ("c:\buildfile.xml: 12: ")
-			int lastIndex = locationString.lastIndexOf(':');
-			int index = locationString.lastIndexOf(':', lastIndex - 1);
-			if (index != -1) {
-				try {
-					return Integer.parseInt(locationString.substring(index + 1, lastIndex));
-				}
-				catch (NumberFormatException nfe) {
-					return 0;
-				}
-			}
-			return 0;
-		}
-	}
-
-	public static Location getLocation(Target target) {
-		try {// succeeds with Ant newer than 1.6.2
-			return target.getLocation();
-		}
-		catch (NoSuchMethodError e) {
-			return Location.UNKNOWN_LOCATION;
-		}
-	}
-
-	public String getFileName(Location location) {
-		try {// succeeds with Ant newer than 1.6
-			return location.getFileName();
-		}
-		catch (NoSuchMethodError e) {
-			// Ant before 1.6
-			String locationString = location.toString();
-			if (locationString.length() == 0) {
-				return null;
-			}
-			// filename: lineNumber: ("c:\buildfile.xml: 12: ")
-			int lastIndex = locationString.lastIndexOf(':');
-			int index = locationString.lastIndexOf(':', lastIndex - 1);
-			if (index == -1) {
-				index = lastIndex; // only the filename is known
-			}
-			if (index != -1) {
-				// bug 84403
-				// if (locationString.startsWith("file:")) {
-				// return FileUtils.newFileUtils().fromURI(locationString);
-				// }
-				// remove file:
-				return locationString.substring(5, index);
-			}
-			return null;
-		}
-	}
-
 	private void appendToStack(StringBuffer stackRepresentation, String targetName, String taskName, Location location) {
 		stackRepresentation.append(targetName);
 		stackRepresentation.append(DebugMessageIds.MESSAGE_DELIMITER);
 		stackRepresentation.append(taskName);
 		stackRepresentation.append(DebugMessageIds.MESSAGE_DELIMITER);
 
-		stackRepresentation.append(getFileName(location));
+		stackRepresentation.append(location.getFileName());
 		stackRepresentation.append(DebugMessageIds.MESSAGE_DELIMITER);
-		stackRepresentation.append(getLineNumber(location));
+		stackRepresentation.append(location.getLineNumber());
 		stackRepresentation.append(DebugMessageIds.MESSAGE_DELIMITER);
 	}
 
@@ -412,7 +350,7 @@ public void marshalStack(StringBuffer stackRepresentation) {
 		}
 
 		if (!isAfterTaskEvent()) {
-			appendToStack(stackRepresentation, targetExecuting.getName(), IAntCoreConstants.EMPTY_STRING, getLocation(targetExecuting));
+			appendToStack(stackRepresentation, targetExecuting.getName(), IAntCoreConstants.EMPTY_STRING, targetExecuting.getLocation());
 		}
 		for (int i = tasks.size() - 1; i >= 0; i--) {
 			Task task = tasks.get(i);
@@ -450,7 +388,7 @@ private void marshalTargetDependancyStack(StringBuffer stackRepresentation, Targ
 			for (int i = startIndex; i <= dependancyStackDepth; i++) {
 				stackTarget = buildSequence.get(i);
 				if (stackTarget.dependsOn(targetExecuting.getName())) {
-					appendToStack(stackRepresentation, stackTarget.getName(), IAntCoreConstants.EMPTY_STRING, getLocation(stackTarget));
+					appendToStack(stackRepresentation, stackTarget.getName(), IAntCoreConstants.EMPTY_STRING, stackTarget.getLocation());
 				}
 			}
 		}

ant/org.eclipse.ant.launching/lib/antdebug.jar

@@ -28,7 +28,6 @@
 import org.eclipse.ant.internal.launching.AntLaunch;
 import org.eclipse.ant.internal.launching.AntLaunching;
 import org.eclipse.ant.internal.launching.AntLaunchingUtil;
-import org.eclipse.ant.internal.launching.debug.AntDebugState;
 import org.eclipse.ant.internal.launching.launchConfigurations.AntProcess;
 import org.eclipse.ant.internal.launching.launchConfigurations.AntStreamMonitor;
 import org.eclipse.ant.internal.launching.launchConfigurations.AntStreamsProxy;
@@ -287,7 +286,7 @@ public void targetStarted(BuildEvent event) {
 		msg.append(targetName);
 		msg.append(':');
 		String message = msg.toString();
-		Location location = AntDebugState.getLocation(target);
+		Location location = target.getLocation();
 		if (location != null && location != Location.UNKNOWN_LOCATION) {
 			IRegion region = new Region(0, targetName.length());
 			AntProcess antProcess = getAntProcess(fProcessId);

ant/org.eclipse.ant.launching/lib/remote.jar

@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2004, 2016 IBM Corporation and others.
+ * Copyright (c) 2004, 2025 IBM Corporation and others.
  *
  * This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License 2.0
@@ -219,8 +219,8 @@ private IBreakpoint breakpointAtLineNumber(Location location) {
 		if (fBreakpoints == null || location == null || location == Location.UNKNOWN_LOCATION) {
 			return null;
 		}
-		int lineNumber = fDebugState.getLineNumber(location);
-		File locationFile = new File(fDebugState.getFileName(location));
+		int lineNumber = location.getLineNumber();
+		File locationFile = new File(location.getFileName());
 		for (IBreakpoint bp : fBreakpoints) {
 			ILineBreakpoint breakpoint = (ILineBreakpoint) bp;
 			int breakpointLineNumber;

ant/org.eclipse.ant.launching/loggers/org/eclipse/ant/internal/launching/runtime/logger/AntProcessBuildLogger.java

@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2003, 2016 IBM Corporation and others.
+ * Copyright (c) 2003, 2025 IBM Corporation and others.
  *
  * This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License 2.0
@@ -30,7 +30,6 @@
 import org.apache.tools.ant.Project;
 import org.apache.tools.ant.Target;
 import org.apache.tools.ant.util.StringUtils;
-import org.eclipse.ant.internal.launching.debug.AntDebugState;
 import org.eclipse.ant.internal.launching.remote.AntSecurityException;
 import org.eclipse.ant.internal.launching.remote.IAntCoreConstants;
 import org.eclipse.ant.internal.launching.remote.InternalAntRunner;
@@ -358,7 +357,7 @@ private void marshalTaskMessage(BuildEvent event) throws IOException {
 
 	private void marshalTargetMessage(BuildEvent event) {
 		Target target = event.getTarget();
-		Location location = AntDebugState.getLocation(target);
+		Location location = target.getLocation();
 
 		StringBuilder message = new StringBuilder();
 		message.append(MessageIds.TARGET);

ant/org.eclipse.ant.launching/loggers/org/eclipse/ant/internal/launching/runtime/logger/AntProcessDebugBuildLogger.java

@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2003, 2016 IBM Corporation and others.
+ * Copyright (c) 2003, 2025 IBM Corporation and others.
  *
  * This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License 2.0
@@ -302,8 +302,8 @@ private RemoteAntBreakpoint breakpointAtLineNumber(Location location) {
 		if (fBreakpoints == null || location == null || location == Location.UNKNOWN_LOCATION) {
 			return null;
 		}
-		String fileName = fDebugState.getFileName(location);
-		int lineNumber = fDebugState.getLineNumber(location);
+		String fileName = location.getFileName();
+		int lineNumber = location.getLineNumber();
 		for (RemoteAntBreakpoint breakpoint : fBreakpoints) {
 			if (breakpoint.isAt(fileName, lineNumber)) {
 				return breakpoint;