Remove JOL dependency

common-api/pom.xml

@@ -28,12 +28,18 @@
     </parent>
     <artifactId>common-api</artifactId>
     <name>TsFile: Common API</name>
-    <dependencies>
-        <dependency>
-            <groupId>org.openjdk.jol</groupId>
-            <artifactId>jol-core</artifactId>
-        </dependency>
-    </dependencies>
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <configuration>
+                    <source>8</source>
+                    <target>8</target>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
     <profiles>
         <profile>
             <id>get-jar-with-dependencies</id>

common-api/src/main/java/org/apache/iotdb/tsfile/read/common/block/column/ColumnBuilderStatus.java

@@ -21,8 +21,6 @@
 
 import org.apache.iotdb.tsfile.read.common.block.TsBlockBuilderStatus;
 
-import org.openjdk.jol.info.ClassLayout;
-
 import java.lang.reflect.Field;
 import java.lang.reflect.Modifier;
 

common-api/src/main/java/org/apache/iotdb/tsfile/utils/Constants.java

@@ -0,0 +1,100 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.iotdb.tsfile.utils;
+
+import java.util.StringTokenizer;
+
+/**
+ * This class is copied from apache lucene, version 8.4.0. Estimates the size(memory representation)
+ * of Java objects. <a
+ * href="https://github.com/LuXugang/Lucene-7.x-9.x/blob/master/solr-8.4.0/lucene/core/src/java/org/apache/lucene/util/Constants.java">Constants.java</a>
+ * Some useful constants.
+ */
+public final class Constants {
+
+  private Constants() {} // can't construct
+
+  /** JVM vendor info. */
+  public static final String JVM_VENDOR = System.getProperty("java.vm.vendor");
+
+  public static final String JVM_VERSION = System.getProperty("java.vm.version");
+  public static final String JVM_NAME = System.getProperty("java.vm.name");
+  public static final String JVM_SPEC_VERSION = System.getProperty("java.specification.version");
+
+  /** The value of <tt>System.getProperty("java.version")</tt>. * */
+  public static final String JAVA_VERSION = System.getProperty("java.version");
+
+  /** The value of <tt>System.getProperty("os.name")</tt>. * */
+  public static final String OS_NAME = System.getProperty("os.name");
+  /** True iff running on Linux. */
+  public static final boolean LINUX = OS_NAME.startsWith("Linux");
+  /** True iff running on Windows. */
+  public static final boolean WINDOWS = OS_NAME.startsWith("Windows");
+  /** True iff running on SunOS. */
+  public static final boolean SUN_OS = OS_NAME.startsWith("SunOS");
+  /** True iff running on Mac OS X */
+  public static final boolean MAC_OS_X = OS_NAME.startsWith("Mac OS X");
+  /** True iff running on FreeBSD */
+  public static final boolean FREE_BSD = OS_NAME.startsWith("FreeBSD");
+
+  public static final String OS_ARCH = System.getProperty("os.arch");
+  public static final String OS_VERSION = System.getProperty("os.version");
+  public static final String JAVA_VENDOR = System.getProperty("java.vendor");
+
+  private static final int JVM_MAJOR_VERSION;
+  private static final int JVM_MINOR_VERSION;
+
+  /** True iff running on a 64bit JVM */
+  public static final boolean JRE_IS_64BIT;
+
+  static {
+    final StringTokenizer st = new StringTokenizer(JVM_SPEC_VERSION, ".");
+    JVM_MAJOR_VERSION = Integer.parseInt(st.nextToken());
+    if (st.hasMoreTokens()) {
+      JVM_MINOR_VERSION = Integer.parseInt(st.nextToken());
+    } else {
+      JVM_MINOR_VERSION = 0;
+    }
+    boolean is64Bit = false;
+    String datamodel = null;
+    try {
+      datamodel = System.getProperty("sun.arch.data.model");
+      if (datamodel != null) {
+        is64Bit = datamodel.contains("64");
+      }
+    } catch (SecurityException ex) {
+    }
+    if (datamodel == null) {
+      if (OS_ARCH != null && OS_ARCH.contains("64")) {
+        is64Bit = true;
+      } else {
+        is64Bit = false;
+      }
+    }
+    JRE_IS_64BIT = is64Bit;
+  }
+
+  public static final boolean JRE_IS_MINIMUM_JAVA8 =
+      JVM_MAJOR_VERSION > 1 || (JVM_MAJOR_VERSION == 1 && JVM_MINOR_VERSION >= 8);
+  public static final boolean JRE_IS_MINIMUM_JAVA9 =
+      JVM_MAJOR_VERSION > 1 || (JVM_MAJOR_VERSION == 1 && JVM_MINOR_VERSION >= 9);
+  public static final boolean JRE_IS_MINIMUM_JAVA11 =
+      JVM_MAJOR_VERSION > 1 || (JVM_MAJOR_VERSION == 1 && JVM_MINOR_VERSION >= 11);
+}