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Guard cast of MemoryHistory

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mpollack
2014-01-30 18:24:55 -05:00
parent 08357d2c28
commit 0bbfd4aaad
1 changed files with 5 additions and 1 deletions
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6
src/main/java/org/springframework/shell/core/JLineShell.java
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@@ -40,6 +40,7 @@ import java.util.logging.Logger;
import jline.WindowsTerminal;
import jline.console.ConsoleReader;
import jline.console.history.History;
import jline.console.history.MemoryHistory;
import org.apache.commons.io.input.ReversedLinesFileReader;
@@ -127,7 +128,10 @@ public abstract class JLineShell extends AbstractShell implements Shell, Runnabl
// reader.setDebug(new PrintWriter(new FileWriter("writer.debug", true)));
openFileLogIfPossible();
((MemoryHistory) this.reader.getHistory()).setMaxSize(getHistorySize());
History history = this.reader.getHistory();
if (history instanceof MemoryHistory) {
((MemoryHistory)history).setMaxSize(getHistorySize());
}
// Try to build previous command history from the project's log
String[] filteredLogEntries = filterLogEntry();
for (String logEntry : filteredLogEntries) {