GitHub user Michele100 added a comment to the discussion: Remove BEAM AND REDUCE hop SIZE
Hi @bamaer , thanks for your suggestion. I have removed those 2 folders and few other files from the "core" folder: <img width="1392" height="434" alt="image" src="https://github.com/user-attachments/assets/2794f73f-bb81-440b-9e48-d9d9a6e24a9f"; /> And I have the following error when I start hop-gui: `2025/12/11 22:35:16 - General - ERROR: Unexpected error registering jar plugin file: file:/home/michele/hop/plugins/transforms/memgroupby/hop-transform-memgroupby-2.16.0.jar 2025/12/11 22:35:16 - General - ERROR: java.lang.ClassNotFoundException: Unable to load class 'org.apache.hop.pipeline.transforms.memgroupby.MemoryGroupByMeta' in this classloader or in the parent 2025/12/11 22:35:16 - General - at org.apache.hop.core.plugins.HopURLClassLoader.loadClass(HopURLClassLoader.java:97) 2025/12/11 22:35:16 - General - at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:526) 2025/12/11 22:35:16 - General - at org.apache.hop.core.plugins.BasePluginType.registerPluginJars(BasePluginType.java:586) 2025/12/11 22:35:16 - General - at org.apache.hop.core.plugins.BasePluginType.searchPlugins(BasePluginType.java:119) 2025/12/11 22:35:16 - General - at org.apache.hop.core.plugins.PluginRegistry.registerType(PluginRegistry.java:536) 2025/12/11 22:35:16 - General - at org.apache.hop.core.plugins.PluginRegistry.init(PluginRegistry.java:519) 2025/12/11 22:35:16 - General - at org.apache.hop.core.HopEnvironment.init(HopEnvironment.java:121) 2025/12/11 22:35:16 - General - at org.apache.hop.core.HopEnvironment.init(HopEnvironment.java:77) 2025/12/11 22:35:16 - General - at org.apache.hop.ui.hopgui.HopGui.main(HopGui.java:337) 2025/12/11 22:35:16 - General - Caused by: java.lang.NoClassDefFoundError: org/apache/hop/beam/pipeline/IBeamPipelineTransformHandler 2025/12/11 22:35:16 - General - at java.base/java.lang.ClassLoader.defineClass1(Native Method) 2025/12/11 22:35:16 - General - at java.base/java.lang.ClassLoader.defineClass(ClassLoader.java:1027) 2025/12/11 22:35:16 - General - at java.base/java.security.SecureClassLoader.defineClass(SecureClassLoader.java:150) 2025/12/11 22:35:16 - General - at java.base/java.net.URLClassLoader.defineClass(URLClassLoader.java:524) 2025/12/11 22:35:16 - General - at java.base/java.net.URLClassLoader$1.run(URLClassLoader.java:427) 2025/12/11 22:35:16 - General - at java.base/java.net.URLClassLoader$1.run(URLClassLoader.java:421) 2025/12/11 22:35:16 - General - at java.base/java.security.AccessController.doPrivileged(AccessController.java:714) 2025/12/11 22:35:16 - General - at java.base/java.net.URLClassLoader.findClass(URLClassLoader.java:420) 2025/12/11 22:35:16 - General - at org.apache.hop.core.plugins.HopURLClassLoader.loadClassFromThisLoader(HopURLClassLoader.java:67) 2025/12/11 22:35:16 - General - at org.apache.hop.core.plugins.HopURLClassLoader.loadClass(HopURLClassLoader.java:92) 2025/12/11 22:35:16 - General - ... 8 more 2025/12/11 22:35:16 - General - Caused by: java.lang.ClassNotFoundException: Unable to load class 'org.apache.hop.beam.pipeline.IBeamPipelineTransformHandler' in this classloader or in the parent 2025/12/11 22:35:16 - General - at org.apache.hop.core.plugins.HopURLClassLoader.loadClass(HopURLClassLoader.java:97) 2025/12/11 22:35:16 - General - at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:526) 2025/12/11 22:35:16 - General - ... 18 more 2025/12/11 22:35:16 - General - Caused by: java.lang.ClassNotFoundException: org.apache.hop.beam.pipeline.IBeamPipelineTransformHandler 2025/12/11 22:35:16 - General - at java.base/java.net.URLClassLoader.findClass(URLClassLoader.java:445) 2025/12/11 22:35:16 - General - at org.apache.hop.core.plugins.HopURLClassLoader.loadClassFromThisLoader(HopURLClassLoader.java:67) 2025/12/11 22:35:16 - General - at org.apache.hop.core.plugins.HopURLClassLoader.loadClass(HopURLClassLoader.java:92) 2025/12/11 22:35:16 - General - ... 19 more ` The gui starts and it seems to work OK (not tested much), but my expectations were that I could remove ANY reference to BEAM and still have a functioning HOP, without any errors. I am aware that this is a very small issue, but maybe it points to some dependencies that should not exists. Best regards GitHub link: https://github.com/apache/hop/discussions/6138#discussioncomment-15235003 ---- This is an automatically sent email for [email protected]. To unsubscribe, please send an email to: [email protected]
