Fix Debug Hover showing SuperClass Field's value in Subclass Field

This commit adds an additional computation for finding the subclass
class field if superclass has same field as of subclass

Fixes : #924

Author: SougandhS

org.eclipse.jdt.debug.tests/java8/SubClass.java

@@ -0,0 +1,25 @@
+/*******************************************************************************
+ *  Copyright (c) 2026 IBM Corporation.
+ *
+ *  This program and the accompanying materials
+ *  are made available under the terms of the Eclipse Public License 2.0
+ *  which accompanies this distribution, and is available at
+ *  https://www.eclipse.org/legal/epl-2.0/
+ *
+ *  SPDX-License-Identifier: EPL-2.0
+ *
+ *  Contributors:
+ *     IBM Corporation - initial API and implementation
+ *******************************************************************************/
+public class SubClass extends SuperClass {
+    private boolean fInitialized;
+
+    public SubClass() {
+        fInitialized = false;
+        System.out.println("SubClass constructor");
+    }
+
+    public static void main(String[] args) {
+        new SubClass();
+    }
+}

org.eclipse.jdt.debug.tests/java8/SuperClass.java

@@ -0,0 +1,20 @@
+/*******************************************************************************
+ *  Copyright (c) 2026 IBM Corporation.
+ *
+ *  This program and the accompanying materials
+ *  are made available under the terms of the Eclipse Public License 2.0
+ *  which accompanies this distribution, and is available at
+ *  https://www.eclipse.org/legal/epl-2.0/
+ *
+ *  SPDX-License-Identifier: EPL-2.0
+ *
+ *  Contributors:
+ *     IBM Corporation - initial API and implementation
+ *******************************************************************************/
+public class SuperClass {
+    private boolean fInitialized = true;
+
+    public SuperClass() {
+        
+    }
+}

org.eclipse.jdt.debug.tests/tests/org/eclipse/jdt/debug/tests/AbstractDebugTest.java

@@ -551,6 +551,8 @@ synchronized void assert18Project() {
 				cfgs.add(createLaunchConfiguration(jp, "LambdaBreakpoints1"));
 				cfgs.add(createLaunchConfiguration(jp, "GH275"));
 				cfgs.add(createLaunchConfiguration(jp, "LambdaTest"));
+				cfgs.add(createLaunchConfiguration(jp, "SuperClass"));
+				cfgs.add(createLaunchConfiguration(jp, "SubClass"));
 	    		loaded18 = true;
 	    		waitForBuild();
 	        }

org.eclipse.jdt.debug.tests/tests/org/eclipse/jdt/debug/tests/ui/DebugHoverTests.java

@@ -1,5 +1,5 @@
 /*******************************************************************************
- *  Copyright (c) 2017, 2024 Andrey Loskutov and others.
+ *  Copyright (c) 2017, 2026 Andrey Loskutov and others.
  *
  *  This program and the accompanying materials
  *  are made available under the terms of the Eclipse Public License 2.0
@@ -1527,4 +1527,39 @@ public void testResolveIn2Lambdas() throws Exception {
 		}
 	}
 
+	public void testResolveSameFieldsInSuperAndSub() throws Exception {
+		sync(() -> TestUtil.waitForJobs(getName(), 1000, 10000, ProcessConsole.class));
+
+		final String typeName = "SubClass";
+		final String expectedMethod = "<init>";
+		final int framesNumber = 2;
+		final int bpLine1 = 18;
+
+		IJavaBreakpoint bp1 = createLineBreakpoint(bpLine1, "", typeName + ".java", typeName);
+		bp1.setSuspendPolicy(IJavaBreakpoint.SUSPEND_THREAD);
+		IFile file = (IFile) bp1.getMarker().getResource();
+		assertEquals(typeName + ".java", file.getName());
+
+		IJavaThread thread = null;
+		try {
+			thread = launchToBreakpoint(typeName);
+			CompilationUnitEditor part = openEditorAndValidateStack(expectedMethod, framesNumber, file, thread);
+
+			JavaDebugHover hover = new JavaDebugHover();
+			hover.setEditor(part);
+			int offset = part.getViewer().getDocument().get().indexOf("fInitialized = ");
+			String variableName = "fInitialized";
+			IRegion region = new Region(offset, variableName.length());
+			String text = selectAndReveal(part, bpLine1, region);
+			assertEquals(variableName, text);
+			IVariable info = (IVariable) sync(() -> hover.getHoverInfo2(part.getViewer(), region));
+			assertNotNull(info);
+			assertEquals(variableName, info.getName());
+			assertEquals("false", info.getValue().getValueString());
+		} finally {
+			terminateAndRemove(thread);
+			removeAllBreakpoints();
+		}
+	}
+
 }

org.eclipse.jdt.debug/model/org/eclipse/jdt/internal/debug/core/model/JDIObjectValue.java

@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2000, 2015 IBM Corporation and others.
+ * Copyright (c) 2000, 2026 IBM Corporation and others.
  *
  * This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License 2.0
@@ -277,6 +277,17 @@ public IJavaFieldVariable getField(final String name, final String declaringType
 						field = fieldTmp;
 						break;
 					}
+					List<Field> fieldList = ref.allFields(); // Possible sub class fields with same name as of super class
+					fieldList.remove(fieldTmp);
+					for (Field fieldCurrentTmp : fieldList) {
+						if (name.equals(fieldCurrentTmp.name())) {
+							String signatureCurrent = fieldCurrentTmp.declaringType().signature();
+							if (declaringTypeSignature.equals(signatureCurrent)) {
+								field = fieldCurrentTmp;
+								break main;
+							}
+						}
+					}
 					// check if we are inside local type - Signature.createTypeSignature
 					// can't create proper type name out of source field in JavaDebugHover
 					// we get LDebugHoverTest$InnerClass2; instead of LDebugHoverTest$1InnerClass2;