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Fix Save Value to File for large debugger strings (#9452) #9534

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Fix Save Value to File for large debugger strings (#9452) #9534

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17 changes: 14 additions & 3 deletions java/debugger.jpda/src/org/netbeans/modules/debugger/jpda/models/ShortenedStrings.java
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Original file line number Diff line number Diff line change
Expand Up @@ -43,6 +43,7 @@
import java.lang.ref.WeakReference;
import java.text.MessageFormat;
import java.util.Collections;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
Expand Down Expand Up @@ -73,7 +74,7 @@
*/
public final class ShortenedStrings {

private static final Map<String, StringInfo> infoStrings = new WeakHashMap<String, StringInfo>();
private static final Map<String, StringInfo> infoStrings = new HashMap<String, StringInfo>();

@matthiasblaesing matthiasblaesing Aug 5, 2026

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What is the reason to switch from WeakHashMap to HashMap. The full strings are looked up by a string and if the key goes out of scope it makes sense, that the referenced value is removed.

private static final Map<StringReference, StringValueInfo> stringsCache = new WeakHashMap<StringReference, StringValueInfo>();
private static final Set<StringReference> retrievingStrings = new HashSet<StringReference>();
private static final Map<VirtualMachine, Boolean> isLittleEndianCache =
Expand All @@ -85,7 +86,6 @@ public final class ShortenedStrings {

@Override
public void sessionRemoved(Session session) {
// Clean up. WeakHashMap does not clean up if not touched. :-(
int n = DebuggerManager.getDebuggerManager().getSessions().length;
if (n == 0) {
synchronized (infoStrings) {
Expand All @@ -107,8 +107,19 @@ public void sessionRemoved(Session session) {
private ShortenedStrings() {}

public static StringInfo getShortenedInfo(String s) {
if (s == null) {
return null;
}
synchronized (infoStrings) {
return infoStrings.get(s);
StringInfo info = infoStrings.get(s);
if (info != null) {
return info;
}
// Variable.getValue() wraps Strings in quotes: "content..."
if (s.length() >= 2 && s.charAt(0) == '"' && s.charAt(s.length() - 1) == '"') {
return infoStrings.get(s.substring(1, s.length() - 1));
}
return null;
}
}

Expand Down