Merge branch 'master' into ccr

* master:
  TEST: testDocStats should always use forceMerge (#32450)
  TEST: Avoid deletion in FlushIT
  AwaitsFix IndexShardTests#testDocStats
  Painless: Add method type to method. (#32441)

modules/lang-painless/src/main/java/org/elasticsearch/painless/FunctionRef.java

@@ -93,12 +93,12 @@ public class FunctionRef {
      * @param numCaptures number of captured arguments
      */
     public FunctionRef(Class<?> expected, PainlessMethod interfaceMethod, PainlessMethod delegateMethod, int numCaptures) {
-        MethodType delegateMethodType = delegateMethod.getMethodType();
+        MethodType delegateMethodType = delegateMethod.methodType;
 
         interfaceMethodName = interfaceMethod.name;
         factoryMethodType = MethodType.methodType(expected,
                 delegateMethodType.dropParameterTypes(numCaptures, delegateMethodType.parameterCount()));
-        interfaceMethodType = interfaceMethod.getMethodType().dropParameterTypes(0, 1);
+        interfaceMethodType = interfaceMethod.methodType.dropParameterTypes(0, 1);
 
         // the Painless$Script class can be inferred if owner is null
         if (delegateMethod.target == null) {
@@ -142,7 +142,7 @@ public class FunctionRef {
         interfaceMethodName = interfaceMethod.name;
         factoryMethodType = MethodType.methodType(expected,
             delegateMethodType.dropParameterTypes(numCaptures, delegateMethodType.parameterCount()));
-        interfaceMethodType = interfaceMethod.getMethodType().dropParameterTypes(0, 1);
+        interfaceMethodType = interfaceMethod.methodType.dropParameterTypes(0, 1);
 
         delegateClassName = CLASS_NAME;
         delegateInvokeType = H_INVOKESTATIC;

modules/lang-painless/src/main/java/org/elasticsearch/painless/lookup/PainlessLookupBuilder.java

@@ -27,6 +27,7 @@ import org.elasticsearch.painless.spi.WhitelistMethod;
 
 import java.lang.invoke.MethodHandle;
 import java.lang.invoke.MethodHandles;
+import java.lang.invoke.MethodType;
 import java.lang.reflect.Constructor;
 import java.lang.reflect.Field;
 import java.lang.reflect.Method;
@@ -356,10 +357,12 @@ public class PainlessLookupBuilder {
                         "[[" + targetCanonicalClassName + "], " + typesToCanonicalTypeNames(typeParameters) + "] not found", iae);
             }
 
+            MethodType methodType = methodHandle.type();
+
             painlessConstructor = painlessMethodCache.computeIfAbsent(
                     new PainlessMethodCacheKey(targetClass, CONSTRUCTOR_NAME, typeParameters),
                     key -> new PainlessMethod(CONSTRUCTOR_NAME, targetClass, null, void.class, typeParameters,
-                                              asmConstructor, javaConstructor.getModifiers(), methodHandle)
+                                              asmConstructor, javaConstructor.getModifiers(), methodHandle, methodType)
             );
 
             painlessClassBuilder.constructors.put(painlessMethodKey, painlessConstructor);
@@ -516,10 +519,12 @@ public class PainlessLookupBuilder {
                             "[" + methodName + "], " + typesToCanonicalTypeNames(typeParameters) + "] not found", iae);
                 }
 
+                MethodType methodType = methodHandle.type();
+
                 painlessMethod = painlessMethodCache.computeIfAbsent(
                         new PainlessMethodCacheKey(targetClass, methodName, typeParameters),
                         key -> new PainlessMethod(methodName, targetClass, null, returnType,
-                                typeParameters, asmMethod, javaMethod.getModifiers(), methodHandle));
+                                typeParameters, asmMethod, javaMethod.getModifiers(), methodHandle, methodType));
 
                 painlessClassBuilder.staticMethods.put(painlessMethodKey, painlessMethod);
             } else if ((painlessMethod.name.equals(methodName) && painlessMethod.rtn == returnType &&
@@ -557,10 +562,12 @@ public class PainlessLookupBuilder {
                     }
                 }
 
+                MethodType methodType = methodHandle.type();
+
                 painlessMethod = painlessMethodCache.computeIfAbsent(
                         new PainlessMethodCacheKey(targetClass, methodName, typeParameters),
                         key -> new PainlessMethod(methodName, targetClass, augmentedClass, returnType,
-                                typeParameters, asmMethod, javaMethod.getModifiers(), methodHandle));
+                                typeParameters, asmMethod, javaMethod.getModifiers(), methodHandle, methodType));
 
                 painlessClassBuilder.methods.put(painlessMethodKey, painlessMethod);
             } else if ((painlessMethod.name.equals(methodName) && painlessMethod.rtn == returnType &&

modules/lang-painless/src/main/java/org/elasticsearch/painless/lookup/PainlessMethod.java

@@ -38,9 +38,10 @@ public class PainlessMethod {
     public final org.objectweb.asm.commons.Method method;
     public final int modifiers;
     public final MethodHandle handle;
+    public final MethodType methodType;
 
     public PainlessMethod(String name, Class<?> target, Class<?> augmentation, Class<?> rtn, List<Class<?>> arguments,
-                          org.objectweb.asm.commons.Method method, int modifiers, MethodHandle handle) {
+                          org.objectweb.asm.commons.Method method, int modifiers, MethodHandle handle, MethodType methodType) {
         this.name = name;
         this.augmentation = augmentation;
         this.target = target;
@@ -49,54 +50,7 @@ public class PainlessMethod {
         this.method = method;
         this.modifiers = modifiers;
         this.handle = handle;
-    }
+        this.methodType = methodType;
-
-    /**
-     * Returns MethodType for this method.
-     * <p>
-     * This works even for user-defined Methods (where the MethodHandle is null).
-     */
-    public MethodType getMethodType() {
-        // we have a methodhandle already (e.g. whitelisted class)
-        // just return its type
-        if (handle != null) {
-            return handle.type();
-        }
-        // otherwise compute it
-        final Class<?> params[];
-        final Class<?> returnValue;
-        if (augmentation != null) {
-            // static method disguised as virtual/interface method
-            params = new Class<?>[1 + arguments.size()];
-            params[0] = augmentation;
-            for (int i = 0; i < arguments.size(); i++) {
-                params[i + 1] = PainlessLookupUtility.typeToJavaType(arguments.get(i));
-            }
-            returnValue = PainlessLookupUtility.typeToJavaType(rtn);
-        } else if (Modifier.isStatic(modifiers)) {
-            // static method: straightforward copy
-            params = new Class<?>[arguments.size()];
-            for (int i = 0; i < arguments.size(); i++) {
-                params[i] = PainlessLookupUtility.typeToJavaType(arguments.get(i));
-            }
-            returnValue = PainlessLookupUtility.typeToJavaType(rtn);
-        } else if ("<init>".equals(name)) {
-            // constructor: returns the owner class
-            params = new Class<?>[arguments.size()];
-            for (int i = 0; i < arguments.size(); i++) {
-                params[i] = PainlessLookupUtility.typeToJavaType(arguments.get(i));
-            }
-            returnValue = target;
-        } else {
-            // virtual/interface method: add receiver class
-            params = new Class<?>[1 + arguments.size()];
-            params[0] = target;
-            for (int i = 0; i < arguments.size(); i++) {
-                params[i + 1] = PainlessLookupUtility.typeToJavaType(arguments.get(i));
-            }
-            returnValue = PainlessLookupUtility.typeToJavaType(rtn);
-        }
-        return MethodType.methodType(returnValue, params);
     }
 
     public void write(MethodWriter writer) {
@@ -118,7 +72,7 @@ public class PainlessMethod {
             // method since java 8 did not check, but java 9 and 10 do
             if (Modifier.isInterface(clazz.getModifiers())) {
                 writer.visitMethodInsn(Opcodes.INVOKESTATIC,
-                        type.getInternalName(), name, getMethodType().toMethodDescriptorString(), true);
+                        type.getInternalName(), name, methodType.toMethodDescriptorString(), true);
             } else {
                 writer.invokeStatic(type, method);
             }

modules/lang-painless/src/main/java/org/elasticsearch/painless/node/SFunction.java

@@ -145,9 +145,11 @@ public final class SFunction extends AStatement {
             }
         }
 
+        int modifiers = Modifier.STATIC | Modifier.PRIVATE;
         org.objectweb.asm.commons.Method method = new org.objectweb.asm.commons.Method(name, MethodType.methodType(
                 PainlessLookupUtility.typeToJavaType(rtnType), paramClasses).toMethodDescriptorString());
-        this.method = new PainlessMethod(name, null, null, rtnType, paramTypes, method, Modifier.STATIC | Modifier.PRIVATE, null);
+        MethodType methodType = MethodType.methodType(PainlessLookupUtility.typeToJavaType(rtnType), paramClasses);
+        this.method = new PainlessMethod(name, null, null, rtnType, paramTypes, method, modifiers, null, methodType);
     }
 
     @Override

server/src/test/java/org/elasticsearch/index/shard/IndexShardTests.java

@@ -2392,9 +2392,7 @@ public class IndexShardTests extends IndexShardTestCase {
             indexShard = newStartedShard(
                 Settings.builder().put(IndexSettings.INDEX_SOFT_DELETES_RETENTION_OPERATIONS_SETTING.getKey(), 0).build());
             final long numDocs = randomIntBetween(2, 32); // at least two documents so we have docs to delete
-            // Delete at least numDocs/10 documents otherwise the number of deleted docs will be below 10%
+            final long numDocsToDelete = randomLongBetween(1, numDocs);
-            // and forceMerge will refuse to expunge deletes
-            final long numDocsToDelete = randomIntBetween((int) Math.ceil(Math.nextUp(numDocs / 10.0)), Math.toIntExact(numDocs));
             for (int i = 0; i < numDocs; i++) {
                 final String id = Integer.toString(i);
                 indexDoc(indexShard, "_doc", id);
@@ -2460,7 +2458,6 @@ public class IndexShardTests extends IndexShardTestCase {
 
             // merge them away
             final ForceMergeRequest forceMergeRequest = new ForceMergeRequest();
-            forceMergeRequest.onlyExpungeDeletes(randomBoolean());
             forceMergeRequest.maxNumSegments(1);
             indexShard.forceMerge(forceMergeRequest);
 

server/src/test/java/org/elasticsearch/indices/flush/FlushIT.java

@@ -286,7 +286,6 @@ public class FlushIT extends ESIntegTestCase {
         assertThat(fullResult.successfulShards(), equalTo(numberOfReplicas + 1));
     }
 
-    @AwaitsFix(bugUrl = "https://github.com/elastic/elasticsearch/issues/32436")
     public void testDoNotRenewSyncedFlushWhenAllSealed() throws Exception {
         internalCluster().ensureAtLeastNumDataNodes(between(2, 3));
         final int numberOfReplicas = internalCluster().numDataNodes() - 1;
@@ -311,7 +310,7 @@ public class FlushIT extends ESIntegTestCase {
         // Shards were updated, renew synced flush.
         final int moreDocs = between(1, 10);
         for (int i = 0; i < moreDocs; i++) {
-            index("test", "doc", Integer.toString(i));
+            index("test", "doc", "more-" + i);
         }
         final ShardsSyncedFlushResult thirdSeal = SyncedFlushUtil.attemptSyncedFlush(logger, internalCluster(), shardId);
         assertThat(thirdSeal.successfulShards(), equalTo(numberOfReplicas + 1));