Increase the context entrypoint chain size

This change increase the context specific chain size which use max depth
2 to provide static method completions from static entry points. To get
more matching chains we increase the max chain size for this specific chain
search.

org.eclipse.jdt.ls.core/src/org/eclipse/jdt/ls/core/internal/contentassist/ChainCompletionProposalComputer.java

@@ -126,7 +126,8 @@ private List<CompletionItem> executeCallChainSearch() {
 				try {
 					List<ChainElement> contextEntrypoint = computeContextEntrypoint(expectedTypes, cu.getJavaProject());
 					if (!contextEntrypoint.isEmpty()) {
-						contextFinder.startChainSearch(contextEntrypoint, maxChains, 1, 2);
+						//todo: move these to jdt ls configuration.
+						contextFinder.startChainSearch(contextEntrypoint, maxChains * 10, 1, 2);
 					}
 				} catch (JavaModelException e) {
 					// ignore

org.eclipse.jdt.ls.tests/src/org/eclipse/jdt/ls/core/internal/handlers/CompletionHandlerChainTest.java

@@ -2,6 +2,7 @@
 
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertTrue;
 import static org.mockito.Mockito.when;
 
 import java.util.List;
@@ -265,4 +266,23 @@ public Object newObject() {
 		completionItems = list.getItems().stream().filter(i -> i.getLabel().contains("newObject")).collect(Collectors.toList());
 		assertEquals("emptyList completion count [type]", 0, completionItems.size());
 	}
+
+	@Test
+	public void testChainCompletionsOnContextEntrypointExpectMoreThanMaxChainSize() throws Exception {
+		//@formatter:off
+			ICompilationUnit unit = getWorkingCopy(
+					"src/java/Foo.java",
+					"""
+						import java.util.stream.Stream;
+						public class Foo {
+						    public static void main(String[] args) {
+								Stream.of("1").collect()
+						    }
+						}
+						""");
+		//@formatter:on
+		CompletionList list = requestCompletions(unit, "collect(");
+		List<CompletionItem> completionItems = list.getItems();
+		assertTrue("completion count greater than 20", completionItems.size() > 20);
+	}
 }