解决java virtual machine launcher could not find the main class. program will exit

最新推荐文章于 2022-12-03 13:20:01 发布
原创 最新推荐文章于 2022-12-03 13:20:01 发布 · 1.6k 阅读 · 0 ·
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#java #runtime #开发工具

本文介绍了解决Eclipse中运行简单Main方法时出现的“找不到主类”错误的方法。通过删除并重新配置JRE，可以有效地解决此问题。
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今天Eclipse运行一个简单的Main方法都出错;
弹出java virtual machine launcher could not find the main class. program will

解决:首先删除系统中的JRE后,在添加JRE

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java virtual machine launcher Could not find the main class. Program will exit
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遇到eclipse 运行程序时,出现了错误：“Could not find the main class. Program will exit.”   按网上的说法，换JRE版本，重装JDK，eclipse 等等，没有搞掂。   后来发现，新建的工程可以正常运行，由此判断是工程的问题，于是我把备份的工程根目录下的“.classpath” 替换一下 ，   就可以了；即”.cla...
<综合>java virtual machine launcher 提示 could not find the main class,program will exit 问题
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解决方法: 1.首先检查一下你的JDK版本是否够高，如果JDK版本不够高的话也会产生这个问题，首先更换版本高的JDK，然后重新打开Myeclipse 2.检查环境变量的设置是否正确 3.把你开发平台上的已安装JRE的JAVA虚拟机改为你安装的JDK的版本：具体方法：打开Myeclipse->窗口->首选项->JAVA->Installed JERs 把原来的勾选掉，点击右侧ADD按钮，选
[bug]Java虚拟机报错：无法找到主类
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java virtual machine launcher Could not find the main class. Program will exit
Java Virtual Machine Launcher Could not create the Java virtual Machine.
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Eclipse 安装启动错误 Eclipse 下载地址：https://pc.qq.com/detail/11/detail_2851.html 启动错误 解决办法： 进入Eclipse安装目录，找到eclispe.ini 文件，在-vmargs 上，添加JDK...jvm.dll文件路径。 启动正常 ...
[root@yfw ~]# cd /opt/openfire/enterprise/spark/Spark [root@yfw Spark]# cd /opt/openfire/enterprise/spark/Spark [root@yfw Spark]# ./Spark [root@yfw Spark]# vim ./Spark [root@yfw Spark]# ./Spark + INSTALL4J_JAVA_PREFIX= + GREP_OPTIONS= ++ pwd + old_pwd=/opt/openfire/enterprise/spark/Spark ++ basename ./Spark + progname=Spark ++ dirname ./Spark + linkdir=. + cd . + prg=Spark + '[' -h Spark ']' ++ dirname Spark + prg_dir=. ++ basename Spark + progname=Spark + cd . ++ pwd + prg_dir=/opt/openfire/enterprise/spark/Spark + app_home=. + cd . ++ pwd + app_home=/opt/openfire/enterprise/spark/Spark + bundled_jre_home=/opt/openfire/enterprise/spark/Spark/jre + cd /opt/openfire/enterprise/spark/Spark/. + cache_home= + '[' W = W ']' + cache_home=/root/.cache + db_home=/root/.cache/install4j + mkdir -p /root/.cache/install4j + db_file=/root/.cache/install4j/jre_version + '[' '!' -w /root/.cache/install4j ']' + '[' -d /root/.cache/install4j/jre_version ']' + '[' -f /root/.cache/install4j/jre_version ']' + '[' '!' -r /root/.cache/install4j/jre_version ']' + '[' -f /root/.cache/install4j/jre_version ']' + '[' '!' -w /root/.cache/install4j/jre_version ']' + '[' '!' __i4j_lang_restart = '' ']' + '[' '!' __i4j_auth_restart = '' ']' + run_unpack200 /opt/openfire/enterprise/spark/Spark/jre + '[' -d /opt/openfire/enterprise/spark/Spark/jre/lib ']' + run_unpack200 /opt/openfire/enterprise/spark/Spark/jre/jre + '[' -d /opt/openfire/enterprise/spark/Spark/jre/jre/lib ']' + search_jre true + full_awt_required=false + '[' -z '' ']' + test_jvm '' + tested_jvm=na + test_dir= + bin_dir=/bin + java_exc=/bin/java + '[' -z '' ']' + return + full_awt_required=true + '[' -z '' ']' + '[' -f /opt/openfire/enterprise/spark/Spark/.install4j/pref_jre.cfg ']' + '[' -z '' ']' + test_jvm /opt/openfire/enterprise/spark/Spark/jre + tested_jvm=na + test_dir=/opt/openfire/enterprise/spark/Spark/jre + bin_dir=/opt/openfire/enterprise/spark/Spark/jre/bin + java_exc=/opt/openfire/enterprise/spark/Spark/jre/bin/java + '[' -z /opt/openfire/enterprise/spark/Spark/jre ']' + '[' '!' -d /opt/openfire/enterprise/spark/Spark/jre/bin ']' + return + '[' -z '' ']' + '[' na = false ']' + '[' -z '' ']' + '[' W '!=' Wtrue ']' ++ command -v java + prg_jvm=/bin/java + '[' 0 -ne 0 ']' + '[' W/bin/java = W ']' + '[' '!' -z /bin/java ']' + '[' -f /bin/java ']' ++ pwd + old_pwd_jvm=/opt/openfire/enterprise/spark/Spark ++ dirname /bin/java + path_java_bin=/bin + cd /bin + prg_jvm=java + '[' -h java ']' ++ ls -ld java + ls='lrwxrwxrwx 1 root root 22 3月 29 2025 java -> /etc/alternatives/java' ++ expr 'lrwxrwxrwx 1 root root 22 3月 29 2025 java -> /etc/alternatives/java' : '.*-> \(.*\)$' + link=/etc/alternatives/java + expr /etc/alternatives/java : '.*/.*' + prg_jvm=/etc/alternatives/java + '[' -h /etc/alternatives/java ']' ++ ls -ld /etc/alternatives/java + ls='lrwxrwxrwx 1 root root 73 3月 29 2025 /etc/alternatives/java -> /usr/lib/jvm/java-1.8.0-openjdk-1.8.0.312.b07-2.el8_5.x86_64/jre/bin/java' ++ expr 'lrwxrwxrwx 1 root root 73 3月 29 2025 /etc/alternatives/java -> /usr/lib/jvm/java-1.8.0-openjdk-1.8.0.312.b07-2.el8_5.x86_64/jre/bin/java' : '.*-> \(.*\)$' + link=/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.312.b07-2.el8_5.x86_64/jre/bin/java + expr /usr/lib/jvm/java-1.8.0-openjdk-1.8.0.312.b07-2.el8_5.x86_64/jre/bin/java : '.*/.*' + prg_jvm=/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.312.b07-2.el8_5.x86_64/jre/bin/java + '[' -h /usr/lib/jvm/java-1.8.0-openjdk-1.8.0.312.b07-2.el8_5.x86_64/jre/bin/java ']' ++ dirname /usr/lib/jvm/java-1.8.0-openjdk-1.8.0.312.b07-2.el8_5.x86_64/jre/bin/java + path_java_bin=/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.312.b07-2.el8_5.x86_64/jre/bin + cd /usr/lib/jvm/java-1.8.0-openjdk-1.8.0.312.b07-2.el8_5.x86_64/jre/bin + cd .. ++ pwd + path_java_home=/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.312.b07-2.el8_5.x86_64/jre + cd /opt/openfire/enterprise/spark/Spark + test_jvm /usr/lib/jvm/java-1.8.0-openjdk-1.8.0.312.b07-2.el8_5.x86_64/jre + tested_jvm=na + test_dir=/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.312.b07-2.el8_5.x86_64/jre + bin_dir=/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.312.b07-2.el8_5.x86_64/jre/bin + java_exc=/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.312.b07-2.el8_5.x86_64/jre/bin/java + '[' -z /usr/lib/jvm/java-1.8.0-openjdk-1.8.0.312.b07-2.el8_5.x86_64/jre ']' + '[' '!' -d /usr/lib/jvm/java-1.8.0-openjdk-1.8.0.312.b07-2.el8_5.x86_64/jre/bin ']' + '[' '!' -f /usr/lib/jvm/java-1.8.0-openjdk-1.8.0.312.b07-2.el8_5.x86_64/jre/bin/java ']' + '[' '!' -x /usr/lib/jvm/java-1.8.0-openjdk-1.8.0.312.b07-2.el8_5.x86_64/jre/bin/java ']' + modification_date=0 ++ date -r /usr/lib/jvm/java-1.8.0-openjdk-1.8.0.312.b07-2.el8_5.x86_64/jre/bin/java +%s + date_output=1636792349 + '[' 0 -eq 0 ']' + check_date_output + '[' -n 1636792349 -a 1636792349 -eq 1636792349 ']' + modification_date=1636792349 + '[' 1636792349 -eq 0 ']' + tested_jvm=false + read_db_entry + '[' -n '' ']' + '[' '!' -f /root/.cache/install4j/jre_version ']' + '[' '!' -x /usr/lib/jvm/java-1.8.0-openjdk-1.8.0.312.b07-2.el8_5.x86_64/jre/bin/java ']' + found=1 + exec + read r_type r_dir r_ver_major r_ver_minor r_ver_micro r_ver_patch r_ver_vendor + '[' JRE_VERSION = JRE_VERSION ']' + '[' /usr/lib/jvm/java-11-openjdk-11.0.13.0.8-4.el8_5.x86_64 = /usr/lib/jvm/java-1.8.0-openjdk-1.8.0.312.b07-2.el8_5.x86_64/jre ']' + r_ver_micro= + read r_type r_dir r_ver_major r_ver_minor r_ver_micro r_ver_patch r_ver_vendor + '[' JRE_INFO = JRE_VERSION ']' + '[' JRE_INFO = JRE_INFO ']' + '[' /usr/lib/jvm/java-11-openjdk-11.0.13.0.8-4.el8_5.x86_64 = /usr/lib/jvm/java-1.8.0-openjdk-1.8.0.312.b07-2.el8_5.x86_64/jre ']' + r_ver_micro= + read r_type r_dir r_ver_major r_ver_minor r_ver_micro r_ver_patch r_ver_vendor + '[' JRE_VERSION = JRE_VERSION ']' + '[' /usr/lib/jvm/java-1.8.0-openjdk-1.8.0.312.b07-2.el8_5.x86_64/jre = /usr/lib/jvm/java-1.8.0-openjdk-1.8.0.312.b07-2.el8_5.x86_64/jre ']' + ver_major=1 + ver_minor=8 + ver_micro=0 + ver_patch=312 + fill_version_numbers + '[' 1 = '' ']' + '[' 8 = '' ']' + '[' 0 = '' ']' + '[' 312 = '' ']' + r_ver_micro= + read r_type r_dir r_ver_major r_ver_minor r_ver_micro r_ver_patch r_ver_vendor + '[' JRE_INFO = JRE_VERSION ']' + '[' JRE_INFO = JRE_INFO ']' + '[' /usr/lib/jvm/java-1.8.0-openjdk-1.8.0.312.b07-2.el8_5.x86_64/jre = /usr/lib/jvm/java-1.8.0-openjdk-1.8.0.312.b07-2.el8_5.x86_64/jre ']' + is_64bit=92 + '[' W1636792349 = W1636792349 ']' + '[' W92 '!=' W ']' + found=0 + break + exec + return 0 + '[' true = true ']' + is_headless_only + '[' 1 = 1 ']' + '[' -f /usr/lib/jvm/java-1.8.0-openjdk-1.8.0.312.b07-2.el8_5.x86_64/jre/lib/amd64/libsplashscreen.so ']' + return 1 + '[' 1 = '' ']' + '[' 1 -lt 1 ']' + '[' 1 -eq 1 ']' + '[' 8 -lt 8 ']' + '[' 1 = '' ']' + app_java_home=/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.312.b07-2.el8_5.x86_64/jre + '[' -z /usr/lib/jvm/java-1.8.0-openjdk-1.8.0.312.b07-2.el8_5.x86_64/jre ']' + '[' -z /usr/lib/jvm/java-1.8.0-openjdk-1.8.0.312.b07-2.el8_5.x86_64/jre ']' + '[' -z /usr/lib/jvm/java-1.8.0-openjdk-1.8.0.312.b07-2.el8_5.x86_64/jre ']' + '[' -z /usr/lib/jvm/java-1.8.0-openjdk-1.8.0.312.b07-2.el8_5.x86_64/jre ']' + '[' -z /usr/lib/jvm/java-1.8.0-openjdk-1.8.0.312.b07-2.el8_5.x86_64/jre ']' + '[' -z /usr/lib/jvm/java-1.8.0-openjdk-1.8.0.312.b07-2.el8_5.x86_64/jre ']' + '[' -z /usr/lib/jvm/java-1.8.0-openjdk-1.8.0.312.b07-2.el8_5.x86_64/jre ']' + '[' -z /usr/lib/jvm/java-1.8.0-openjdk-1.8.0.312.b07-2.el8_5.x86_64/jre ']' + local_classpath= + i4j_classpath=/opt/openfire/enterprise/spark/Spark/.install4j/i4jruntime.jar:/opt/openfire/enterprise/spark/Spark/.install4j/launcher5cd2e029.jar + add_class_path /opt/openfire/enterprise/spark/Spark/.install4j/i4jruntime.jar:/opt/openfire/enterprise/spark/Spark/.install4j/launcher5cd2e029.jar + '[' -n /opt/openfire/enterprise/spark/Spark/.install4j/i4jruntime.jar:/opt/openfire/enterprise/spark/Spark/.install4j/launcher5cd2e029.jar ']' ++ expr /opt/openfire/enterprise/spark/Spark/.install4j/i4jruntime.jar:/opt/openfire/enterprise/spark/Spark/.install4j/launcher5cd2e029.jar : '.*\*' + '[' 0 -eq 0 ']' + local_classpath=/opt/openfire/enterprise/spark/Spark/.install4j/i4jruntime.jar:/opt/openfire/enterprise/spark/Spark/.install4j/launcher5cd2e029.jar + '[' '!' -d /opt/openfire/enterprise/spark/Spark/lib ']' + add_class_path /opt/openfire/enterprise/spark/Spark/lib '/*' + '[' -n /opt/openfire/enterprise/spark/Spark/lib ']' ++ expr /opt/openfire/enterprise/spark/Spark/lib : '.*\*' + '[' 0 -eq 0 ']' + local_classpath='/opt/openfire/enterprise/spark/Spark/.install4j/i4jruntime.jar:/opt/openfire/enterprise/spark/Spark/.install4j/launcher5cd2e029.jar:/opt/openfire/enterprise/spark/Spark/lib/*' + add_class_path /opt/openfire/enterprise/spark/Spark/resources + '[' -n /opt/openfire/enterprise/spark/Spark/resources ']' ++ expr /opt/openfire/enterprise/spark/Spark/resources : '.*\*' + '[' 0 -eq 0 ']' + local_classpath='/opt/openfire/enterprise/spark/Spark/.install4j/i4jruntime.jar:/opt/openfire/enterprise/spark/Spark/.install4j/launcher5cd2e029.jar:/opt/openfire/enterprise/spark/Spark/lib/*:/opt/openfire/enterprise/spark/Spark/resources' + add_class_path /opt/openfire/enterprise/spark/Spark/lib/windows '/*' + '[' -n /opt/openfire/enterprise/spark/Spark/lib/windows ']' ++ expr /opt/openfire/enterprise/spark/Spark/lib/windows : '.*\*' + '[' 0 -eq 0 ']' + local_classpath='/opt/openfire/enterprise/spark/Spark/.install4j/i4jruntime.jar:/opt/openfire/enterprise/spark/Spark/.install4j/launcher5cd2e029.jar:/opt/openfire/enterprise/spark/Spark/lib/*:/opt/openfire/enterprise/spark/Spark/resources:/opt/openfire/enterprise/spark/Spark/lib/windows/*' + '[' -n '' ']' + add_class_path /opt/openfire/enterprise/spark/Spark/lib/linux '/*' + '[' -n /opt/openfire/enterprise/spark/Spark/lib/linux ']' ++ expr /opt/openfire/enterprise/spark/Spark/lib/linux : '.*\*' + '[' 0 -eq 0 ']' + local_classpath='/opt/openfire/enterprise/spark/Spark/.install4j/i4jruntime.jar:/opt/openfire/enterprise/spark/Spark/.install4j/launcher5cd2e029.jar:/opt/openfire/enterprise/spark/Spark/lib/*:/opt/openfire/enterprise/spark/Spark/resources:/opt/openfire/enterprise/spark/Spark/lib/windows/*:/opt/openfire/enterprise/spark/Spark/lib/linux/*' + vmoptions_val= + read_vmoptions /opt/openfire/enterprise/spark/Spark/Spark.vmoptions ++ eval echo /opt/openfire/enterprise/spark/Spark/Spark.vmoptions + vmoptions_file=/opt/openfire/enterprise/spark/Spark/Spark.vmoptions + '[' '!' -r /opt/openfire/enterprise/spark/Spark/Spark.vmoptions ']' + vmoptions_file=/opt/openfire/enterprise/spark/Spark//opt/openfire/enterprise/spark/Spark/Spark.vmoptions + '[' -r /opt/openfire/enterprise/spark/Spark//opt/openfire/enterprise/spark/Spark/Spark.vmoptions ']' + INSTALL4J_ADD_VM_PARAMS=' ' + LD_LIBRARY_PATH=/opt/openfire/enterprise/spark/Spark/resources: + DYLD_LIBRARY_PATH=/opt/openfire/enterprise/spark/Spark/resources: + SHLIB_PATH=/opt/openfire/enterprise/spark/Spark/resources: + LIBPATH=/opt/openfire/enterprise/spark/Spark/resources: + LD_LIBRARYN32_PATH=/opt/openfire/enterprise/spark/Spark/resources: + LD_LIBRARYN64_PATH=/opt/openfire/enterprise/spark/Spark/resources: + export LD_LIBRARY_PATH + export DYLD_LIBRARY_PATH + export SHLIB_PATH + export LIBPATH + export LD_LIBRARYN32_PATH + export LD_LIBRARYN64_PATH + has_space_options=false + '[' W = W ']' + vmov_1=-Di4jv=0 + '[' W = W ']' + vmov_2=-Di4jv=0 + '[' W = W ']' + vmov_3=-Di4jv=0 + '[' W = W ']' + vmov_4=-Di4jv=0 + '[' W = W ']' + vmov_5=-Di4jv=0 + return_code=0 + '[' false = true ']' + exec /usr/lib/jvm/java-1.8.0-openjdk-1.8.0.312.b07-2.el8_5.x86_64/jre/bin/java -client -Dappdir=/opt/openfire/enterprise/spark/Spark/ -Dsun.java2d.noddraw=true '-Djava.library.path=/opt/openfire/enterprise/spark/Spark/\lib\windows' -classpath '/opt/openfire/enterprise/spark/Spark/.install4j/i4jruntime.jar:/opt/openfire/enterprise/spark/Spark/.install4j/launcher5cd2e029.jar:/opt/openfire/enterprise/spark/Spark/lib/*:/opt/openfire/enterprise/spark/Spark/resources:/opt/openfire/enterprise/spark/Spark/lib/windows/*:/opt/openfire/enterprise/spark/Spark/lib/linux/*' install4j.org.jivesoftware.launcher.Startup [root@yfw Spark]#
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Java Virtual Machine launcher——A Java Exception has occurred
H小阿飞的博客
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      今天想打开JDK1.7版本中的rt.jar时，并未用WinRAR打开，而是用Java(TM) Platform SE binary打开，报如题错误，意思是java虚拟机问题吧，起初我还怀疑是否是环境变量配置有问题，后来检查并无误。         接着上网查阅，发现有人提出，造成此现象的可能有两种情况：       第一：环境变量配置是否正确       第二：就是因为你安装了...
java virtual machine launcher :a java exception has occurred
yindusu的博客
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    我遇到了同样的问题，我花了很长时间才知道解决方案是什么。我遵守了这一页和类似页上的所有建议。我卸载和安装JDK，Eclipse，重置我的项目，我强迫Eclipse清除它的参数，…，没有成功。     最后确定了我的问题是删除工作区文件夹中的".metadata"目录。我不知道Eclipse保留在那里，但是删除 .metadata ,Eclipse重新启动。最后解决。...
java virtual machine launcher Error：Could not create the Java Virtual Machine. Error:A Fatal excepti...
weixin_33795093的博客
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Error：Could not create the Java Virtual Machine. Error:A Fatal exception has occurred,Program will exit. 出现以上错误信息提示，如下图所示： 然后点击确定弹出以下错误信息 解决办法： 1、判断机子是否安装了Java环境。具体方法网上搜吧，这里还是给小白一个传送门：...
Java Virtual Machine Launcher报错-----eclipse
阿古朵
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java在eclipse运行出现虚拟机的相关报错
Eclipse web项目运行main的class出现could not find the main class错误
liangbinny的专栏
12-28 810
出现这个错误一般是jdk问题，web项目建立时默认使用eclipse配置好的jdk，而运行在tomcat本身又配置一个Jdk,如果这两个jdk不一致的话，就会暴这个错误。解决办法是：将eclipse与tomcat跑的服务器使用的jdk一致即可。 也可以点击这个项目，点击Preferences-&gt;Run/Debug Setting-&gt;edit-&gt;jre,修改即可。实际上是同一个道...
Java Virtual Machine Launcher Error: Could not create the Java Virtual Machine. Error: A fatal exception has occurred. Program will exit.
09-25
Java Virtual Machine Launcher Error: Could not create the Java Virtual Machine. Error: A fatal exception has occurred. Program will exit. 这个错误通常是由于Java虚拟机无法创建所需的资源导致的。其中一个可能的原因是您的系统内存不足以支持Java虚拟机的启动。您可以尝试通过增加Java虚拟机的最大堆大小来解决此问题。可以在启动配置文件或命令行中使用参数"-Xmx"来设置Java虚拟机的最大堆大小。例如，"-Xmx1024m"将最大堆大小设置为1GB。 另一个可能的原因是您的Java开发环境配置存在问题。您可以尝试重新安装Java开发工具包（JDK）并确保正确配置了环境变量。还可以尝试更新或切换使用不同版本的Java开发工具包。
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