| /* |
| * 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.tomcat.util.compat; |
| |
| import java.util.Locale; |
| |
| public class JreVendor { |
| |
| static { |
| /** |
| * There are a few places where Tomcat either accesses JVM internals |
| * (e.g. the memory leak protection) or where feature support varies |
| * between JVMs (e.g. SPNEGO). These flags exist to enable Tomcat to |
| * adjust its behaviour based on the vendor of the JVM. In an ideal |
| * world this code would not exist. |
| */ |
| String vendor = System.getProperty("java.vendor", ""); |
| vendor = vendor.toLowerCase(Locale.ENGLISH); |
| |
| if (vendor.startsWith("oracle") || vendor.startsWith("sun")) { |
| IS_ORACLE_JVM = true; |
| IS_IBM_JVM = false; |
| } else if (vendor.contains("ibm")) { |
| IS_ORACLE_JVM = false; |
| IS_IBM_JVM = true; |
| } else { |
| IS_ORACLE_JVM = false; |
| IS_IBM_JVM = false; |
| } |
| } |
| |
| public static final boolean IS_ORACLE_JVM; |
| |
| public static final boolean IS_IBM_JVM; |
| } |