fix(接口测试): 修复脚本编译没有缓存导致tps下降问题

来源：https://github.com/metersphere/ms-jmeter-core/pull/46
感谢：@zhwq1216

framework/sdk-parent/jmeter/src/main/java/org/apache/jmeter/util/JSR223TestElement.java

@@ -185,7 +185,8 @@ public abstract class JSR223TestElement extends ScriptingTestElement
         File scriptFile = new File(getFilename());
         // Hack: bsh-2.0b5.jar BshScriptEngine implements Compilable but throws
         // "java.lang.Error: unimplemented"
-        boolean supportsCompilable = false;
+        boolean supportsCompilable = scriptEngine instanceof Compilable
+                && !"bsh.engine.BshScriptEngine".equals(scriptEngine.getClass().getName()); // NOSONAR // $NON-NLS-1$
         try {
             if (!StringUtils.isEmpty(getFilename())) {
                 if (scriptFile.exists() && scriptFile.canRead()) {