Show actual Object value when detail formatter has module conflict

org.eclipse.jdt.debug.ui/ui/org/eclipse/jdt/internal/debug/ui/JavaDetailFormattersManager.java

@@ -33,6 +33,7 @@
 import org.eclipse.debug.ui.IValueDetailListener;
 import org.eclipse.jdt.core.IJavaProject;
 import org.eclipse.jdt.core.IType;
+import org.eclipse.jdt.core.compiler.IProblem;
 import org.eclipse.jdt.debug.core.IEvaluationRunnable;
 import org.eclipse.jdt.debug.core.IJavaArray;
 import org.eclipse.jdt.debug.core.IJavaArrayType;
@@ -466,6 +467,17 @@ private Expression getCompiledExpression(IJavaObject javaObject, IJavaDebugTarge
 						.getCompiledExpression(snippet, javaObject);
 				if (res != null) {
 					Expression exp = new Expression(res, evaluationEngine);
+					if (exp.getExpression().hasErrors()) {
+						boolean hasModuleError = false;
+						for (int prblemID : exp.getExpression().getProblemIDs()) {
+							if (prblemID == IProblem.ConflictingPackageFromModules || prblemID == IProblem.ConflictingPackageFromOtherModules) {
+								hasModuleError = true;
+							}
+						}
+						if (hasModuleError) {
+							return null;
+						}
+					}
 					fCacheMap.put(key, exp);
 					return exp;
 				}

org.eclipse.jdt.debug/META-INF/MANIFEST.MF

@@ -2,7 +2,7 @@ Manifest-Version: 1.0
 Bundle-ManifestVersion: 2
 Bundle-Name: %pluginName
 Bundle-SymbolicName: org.eclipse.jdt.debug; singleton:=true
-Bundle-Version: 3.23.100.qualifier
+Bundle-Version: 3.24.0.qualifier
 Bundle-ClassPath: jdimodel.jar
 Bundle-Activator: org.eclipse.jdt.internal.debug.core.JDIDebugPlugin
 Bundle-Vendor: %providerName

org.eclipse.jdt.debug/eval/org/eclipse/jdt/debug/eval/ICompiledExpression.java

@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2000, 2011 IBM Corporation and others.
+ * Copyright (c) 2000, 2025 IBM Corporation and others.
  *
  * This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License 2.0
@@ -13,6 +13,8 @@
  *******************************************************************************/
 package org.eclipse.jdt.debug.eval;
 
+import java.util.List;
+
 import org.eclipse.jdt.core.dom.Message;
 
 /**
@@ -62,4 +64,12 @@ public interface ICompiledExpression {
 	 */
 	public String[] getErrorMessages();
 
+	/**
+	 * Returns the list of <code>IProblem</code> id's of the compiled expression
+	 *
+	 * @return the list of IProblem id's of the compiled expression
+	 * @since 3.24
+	 */
+	public List<Integer> getProblemIDs();
+
 }

org.eclipse.jdt.debug/eval/org/eclipse/jdt/internal/debug/eval/ast/engine/ASTEvaluationEngine.java

@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2000, 2024 IBM Corporation and others.
+ * Copyright (c) 2000, 2025 IBM Corporation and others.
  *
  * This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License 2.0
@@ -630,6 +630,7 @@ private ICompiledExpression createExpressionFromAST(String snippet, EvaluationSo
 						DebugPlugin.log(new Status(IStatus.WARNING, DebugPlugin.getUniqueIdentifier(), "Compile error during code evaluation: " //$NON-NLS-1$
 								+ problem.getMessage()));
 					}
+					errorSequence.addProblemID(problemId);
 				}
 			}
 			if (snippetError || runMethodError) {

org.eclipse.jdt.debug/eval/org/eclipse/jdt/internal/debug/eval/ast/instructions/InstructionSequence.java

@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2000, 2015 IBM Corporation and others.
+ * Copyright (c) 2000, 2025 IBM Corporation and others.
  *
  * This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License 2.0
@@ -30,11 +30,13 @@ public class InstructionSequence implements ICompiledExpression {
 	private final List<String> fErrors;
 	private final String fSnippet;
 	private CoreException fException;
+	private final List<Integer> fProblemIDs;
 
 	public InstructionSequence(String snippet) {
 		fInstructions = new ArrayList<>(10);
 		fErrors = new ArrayList<>();
 		fSnippet = snippet;
+		fProblemIDs = new ArrayList<>();
 	}
 
 	/**
@@ -147,4 +149,20 @@ public Instruction get(int address) {
 	public int getEnd() {
 		return fInstructions.size() - 1;
 	}
+
+	/**
+	 * Adds the <code>IProblem<code> id of the error.
+	 */
+	public void addProblemID(int probID) {
+		fProblemIDs.add(probID);
+	}
+
+	/**
+	 * @see org.eclipse.jdt.debug.eval.ICompiledExpression#getProblemIDs()
+	 */
+	@Override
+	public List<Integer> getProblemIDs() {
+		return fProblemIDs;
+	}
+
 }