src/
├── com/demo/util/a.java <-- The class "a"
└── com/demo/util/a/a.java <-- The package "a" containing class "a"

// File: src/com/demo/util/a.java
package com.demo.util;
public class a {
 // This class is empty or does NOT have method g()
}
// File: src/com/demo/util/a/a.java
package com.demo.util.a;
public class a {
 public static String g(String input) {
 return input;
 }
}

@org.springframework.web.bind.annotation.PostMapping({"/testConnection"})
 @org.jeecg.authz.annotation.RequiresPermissions({"drag:datasource:testConnection"})
 public org.jeecg.modules.drag.config.common.Result a(@org.springframework.web.bind.annotation.RequestBody org.jeecg.modules.drag.vo.DynamicDataSourceVo dynamicDataSourceVo) throws java.sql.SQLException {
 java.sql.Connection connection = null;
 java.lang.String string = dynamicDataSourceVo.toString();
 java.lang.Object objA = this.localCache.a(string);
 if (org.jeecg.modules.drag.util.h.d(objA)) {
 int iIntValue = org.jeecg.modules.drag.util.h.e(objA).intValue();
 if (iIntValue >= 3) {
 return org.jeecg.modules.drag.config.common.Result.error("数据源已连接错误3次以上,请检查配置信息!");
 }
 if (iIntValue == 0) {
 return org.jeecg.modules.drag.config.common.Result.OK("数据库连接成功", true);
 }
 } else {
 this.localCache.a(string, 0, org.jeecg.modules.jmreport.common.util.DateUtils.k);
 }
 try {
 try {
 try {
 java.lang.Class.forName(dynamicDataSourceVo.getDbDriver());
 java.sql.DriverManager.setLoginTimeout(60);
 java.sql.Connection connection2 = java.sql.DriverManager.getConnection(org.jeecg.modules.drag.util.a.a.g(dynamicDataSourceVo.getDbUrl()), dynamicDataSourceVo.getDbUsername(), dynamicDataSourceVo.getDbPassword());
 if (connection2 != null) {
 org.jeecg.modules.drag.config.common.Result resultOK = org.jeecg.modules.drag.config.common.Result.OK("数据库连接成功", true);
 if (connection2 != null) {
 try {
 if (!connection2.isClosed()) {
 connection2.close();
 }
 } catch (java.sql.SQLException e) {
 a.error(e.toString(), e);
 }
 }
 return resultOK;
 }
 this.localCache.a(string, 1);
 org.jeecg.modules.drag.config.common.Result resultOK2 = org.jeecg.modules.drag.config.common.Result.OK("failed:unknown", true);
 if (connection2 != null) {
 try {
 if (!connection2.isClosed()) {
 connection2.close();
 }
 } catch (java.sql.SQLException e2) {
 a.error(e2.toString(), e2);
 }
 }
 return resultOK2;
 } catch (java.lang.Exception e3) {
 a.error(e3.toString(), e3);
 this.localCache.a(string, 1);
 org.jeecg.modules.drag.config.common.Result resultError = org.jeecg.modules.drag.config.common.Result.error("failed:" + e3.getMessage());
 if (0 != 0) {
 try {
 if (!connection.isClosed()) {
 connection.close();
 }
 } catch (java.sql.SQLException e4) {
 a.error(e4.toString(), e4);
 return resultError;
 }
 }
 return resultError;
 }
 } catch (java.lang.ClassNotFoundException e5) {
 a.error(e5.toString(), e5);
 this.localCache.a(string, 1);
 org.jeecg.modules.drag.config.common.Result resultError2 = org.jeecg.modules.drag.config.common.Result.error("failed:not exist");
 if (0 != 0) {
 try {
 if (!connection.isClosed()) {
 connection.close();
 }
 } catch (java.sql.SQLException e6) {
 a.error(e6.toString(), e6);
 return resultError2;
 }
 }
 return resultError2;
 }
 } catch (java.lang.Throwable th) {
 if (0 != 0) {
 try {
 if (!connection.isClosed()) {
 connection.close();
 }
 } catch (java.sql.SQLException e7) {
 a.error(e7.toString(), e7);
 throw th;
 }
 }
 throw th;
 }
 }

/**
 * @name Find JDBC Connection Calls
 * @description Find all usages of DriverManager.getConnection
 * @kind problem
 * @problem.severity warning
 * @id java/find-jdbc-connection
 */
import java
// 1. 定义这个目标方法 (和你写的一样,稍微优化了精准度)
class JDBCConnectionMethod extends Method {
 JDBCConnectionMethod() {
 // DriverManager 是类名,不需要 getAnAncestor,直接用 hasQualifiedName 更快更准
 this.getDeclaringType().hasQualifiedName("java.sql", "DriverManager") and
 this.hasName("getConnection")
 }
}
// 2. 核心查询逻辑
from MethodCall call
where 
 // 限制这个调用必须是调用了我们上面定义的那个方法
 call.getMethod() instanceof JDBCConnectionMethod
select call, "发现 DriverManager.getConnection 的调用,第0个参数是: " + call.getArgument(0)
// /**
// * @name Check for Ghost Class
// * @kind problem
// * @id java/check-ghost-class
// */
// import java
// from Class c
// where c.hasQualifiedName("org.jeecg.modules.drag.util.a", "a")
// select c, "文件路径: " + c.getFile().getAbsolutePath(), "代码行数: " + c.getNumberOfLinesOfCode()