Give ResponseStore for codeactions a minimum history size of 8

Author: ethan-vanderheijden

org.eclipse.jdt.ls.core/src/org/eclipse/jdt/ls/core/internal/handlers/CodeActionHandler.java

@@ -78,7 +78,7 @@
 
 public class CodeActionHandler {
 	public static final ResponseStore<Either<ChangeCorrectionProposalCore, CodeActionProposal>> codeActionStore
-		= new ResponseStore<>(ForkJoinPool.commonPool().getParallelism());
+			= new ResponseStore<>(Math.max(ForkJoinPool.commonPool().getParallelism(), 8));
 	public static final String COMMAND_ID_APPLY_EDIT = "java.apply.workspaceEdit";
 
 	public static CodeActionOptions createOptions(PreferenceManager preferenceManager) {