fix: implement 'copy' and 'isSame' methods in InvokeCustomNode

jadx-core/src/main/java/jadx/core/dex/instructions/InvokeCustomNode.java

@@ -20,6 +20,38 @@ public class InvokeCustomNode extends InvokeNode {
 		super(lambdaInfo, insn, InvokeType.CUSTOM, instanceCall, isRange);
 	}
 
+	private InvokeCustomNode(MethodInfo mth, InvokeType invokeType, int argsCount) {
+		super(mth, invokeType, argsCount);
+	}
+
+	@Override
+	public InsnNode copy() {
+		InvokeCustomNode copy = new InvokeCustomNode(getCallMth(), getInvokeType(), getArgsCount());
+		copyCommonParams(copy);
+		copy.setImplMthInfo(implMthInfo);
+		copy.setHandleType(handleType);
+		copy.setCallInsn(callInsn);
+		copy.setInlineInsn(inlineInsn);
+		copy.setUseRef(useRef);
+		return copy;
+	}
+
+	@Override
+	public boolean isSame(InsnNode obj) {
+		if (this == obj) {
+			return true;
+		}
+		if (!(obj instanceof InvokeCustomNode) || !super.isSame(obj)) {
+			return false;
+		}
+		InvokeCustomNode other = (InvokeCustomNode) obj;
+		return handleType == other.handleType
+				&& implMthInfo.equals(other.implMthInfo)
+				&& callInsn.isSame(other.callInsn)
+				&& inlineInsn == other.inlineInsn
+				&& useRef == other.useRef;
+	}
+
 	public MethodInfo getImplMthInfo() {
 		return implMthInfo;
 	}

jadx-core/src/test/java/jadx/tests/integration/java8/TestLambdaInArray.java

@@ -0,0 +1,40 @@
+package jadx.tests.integration.java8;
+
+import java.util.Arrays;
+import java.util.List;
+import java.util.function.Function;
+
+import org.junit.jupiter.api.Test;
+
+import jadx.tests.api.IntegrationTest;
+
+import static jadx.tests.api.utils.assertj.JadxAssertions.assertThat;
+
+public class TestLambdaInArray extends IntegrationTest {
+
+	public static class TestCls {
+
+		public List<Function<String, Integer>> test() {
+			return Arrays.asList(this::call1, this::call2);
+		}
+
+		private Integer call1(String s) {
+			return null;
+		}
+
+		private Integer call2(String s) {
+			return null;
+		}
+
+		public void check() throws Exception {
+			assertThat(test()).hasSize(2);
+		}
+	}
+
+	@Test
+	public void test() {
+		assertThat(getClassNode(TestCls.class))
+				.code()
+				.containsOne("return Arrays.asList(this::call1, this::call2);");
+	}
+}