This post is not necessarily about any specific technology. Just wanted to tell you about one possible reason for this commonly faced problem. I was working on a Spring MVC application lately and I got the following error

SEVERE [localhost-startStop-4] org.apache.catalina.core.ContainerBase.addChildInternal ContainerBase.addChild: start:
org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/springcaptcha]]
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:153)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:725)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:701)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:717)
at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:940)
at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1816)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Caused by: org.apache.catalina.LifecycleException: Failed to start component [org.apache.catalina.webresources.StandardRoot@70d8c322]
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:153)
at org.apache.catalina.core.StandardContext.resourcesStart(StandardContext.java:4958)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5088)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:147)
… 10 more
Caused by: org.apache.catalina.LifecycleException: Failed to initialize component [org.apache.catalina.webresources.JarResourceSet@2e94c523]
at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:106)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:136)
at org.apache.catalina.webresources.StandardRoot.startInternal(StandardRoot.java:699)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:147)
… 13 more
Caused by: java.lang.IllegalArgumentException: java.util.zip.ZipException: error in opening zip file
at org.apache.catalina.webresources.JarResourceSet.initInternal(JarResourceSet.java:139)
at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:102)
… 16 more
Caused by: java.util.zip.ZipException: error in opening zip file
at java.util.zip.ZipFile.open(Native Method)
at java.util.zip.ZipFile.<init>(ZipFile.java:219)
at java.util.zip.ZipFile.<init>(ZipFile.java:149)
at java.util.jar.JarFile.<init>(JarFile.java:166)
at java.util.jar.JarFile.<init>(JarFile.java:103)
at org.apache.catalina.webresources.JarResourceSet.initInternal(JarResourceSet.java:136)
… 17 more

Now, there could be various reasons why this could be happening. I am just going to tell how I resolved it.

1. Zipeg is. an open source free software that extracts files from compressed archives like ZIP, RAR, 7z and others, some of which are rarely used types. Zipeg works under Mac OS X and Windows. It is best known for its file preview ability. It is incapable of.
2. A few quick zips through the canyons of Catalina Island just above Descanso Beach with some glamour shots of the coastline and my ridiculous expressions as I.
3. The first zipline in Los Angeles County is also the most scenic in California. The zipline on Catalina Island features five consecutive zips high above Descanso Canyon, all featuring inspiring views of the Pacific Ocean far below. Catalina zipline adventurers will also learn more about Catalina’s.
4. The perfect day package for the adventurer who wants to experience Catalina Island! Propel down 5 separate zip lines dropping from 600 feet above sea level - one run is 1,100 lineal feet long all on its own. Travel over 5 consecutive zip lines at heights of 300 feet.

Zip Away over Catalina's gorgeous Descanso Canyon. Soar from platform to platform over the blue Pacific. Exhilaration is just a step away! Propel down 5 separate zip lines dropping from 600 feet above sea level - one run is 1,100 lineal feet long all on its own!

I was using Maven for my builds and it happened that some of the dependency jars downloaded by Maven are not valid. They were Zero Byte, 1Byte jars. Obviously, Tomcat was trying to load those jars and was not able to do so. I resolved this error by manually copying jars from Maven Repos and changing some of the dependencies. In your case check if you can do the same.

Other Possible Reasons:

• Check if your jar has proper permissions for the system user which is running Tomcat
• Try to open the file in Zipeg , Winrar, Winzip or any equivalent unzipping system and verify if any of the jar in the classpath is not corrupt. Look for suspiciously smaller sized files

One of the best perks of living in California is the variety of breathtaking beaches, canyons, and scenery. If you’re a hiking fanatic, you’ll especially love the beautiful landscapes on Catalina Island. This cherished island contains some of the best hiking in California. Catalina Island is a highly-esteemed utopia that allows anyone to escape traffic jams, concrete jungle, and crowded experiences that accompany many of California’s hiking trails. No matter how many people are on the Island, even during popular summers, hiking on Catalina Island is such a quiet and serene experience. Visitors also encounter spectacular wildlife, such as foxes, bison, and deer.

Catalina Island hiking trails are accessible from Two Harbors or Avalon. On these paths, hikers soon realize there’s a different and exciting feeling that stems from being on an island. It makes people relax – like they are so far away from the normal, hectic pace of life. There’s nothing quite like it. If you’re ready for the island getaway experience, here are three of the best places to go hiking in California.

1. Trans-Catalina Hiking in California

If you like camping and backpacking, this hike is for you. The Trans-Catalina hiking trail is 38.5 miles, and it goes throughout the entire Island. Adventuring from one side of the Island to the other takes about 3-5 days to complete; however, this hike can also be broken up into smaller, more casual hikes. Whether hiking from Two Harbors Campground to Little Harbor Campground, or from Avalon to Two Harbors, visitors have the unique opportunity to map out their own hike. There are multiple camping sites so there is always somewhere to stay, making it even more flexible to “build your own hike.”

If you’re backpacking and you don’t want to carry anything, reach out to Catalina Backcountry. They are an excellent business that can deliver your gear, supply firewood, set up your tent, and even bring you dinner. Their service makes hiking Trans-Catalina a lot easier.

To traverse this hiking trail, you have to go to the Catalina Conservancy and get a permit. The permit is free, and it’s required so they know who’s on the trail. You can get your free hiking permit online here.

• Length: 38.5 miles.
• Time: Approximately 3-5 days
• Difficulty: Advanced

2. Garden to Sky Hiking in California

This California hiking trail is a great choice for day trippers who would like to spend more time exploring other parts of the Island, like the restaurants and shops. The Garden to Sky hike begins at The Wrigley Memorial and Botanic Gardens and ends with a stunning view of both sides of the Island. From Avalon, you can either bus to the Botanic Gardens, take a golf cart, or walk two-miles.

This is a 2.5-mile hike round trip but it feels longer because you’re hiking uphill. It features breathtaking 360-degree views and offers surprising encounters. For example, you can start the hike with clear skies and when you get to other side, the Island is draped in a beautiful fog that is something out of a fairytale.

Because the hike begins out of The Wrigley Memorial and Botanic Gardens, the entrance to this trail is $7 for adults, $5 for seniors and vets, and $3 for kids and students. Under 5 is free. This allows you to walk through the beautiful gardens and explore the Wrigley Memorial before you head to your hike. The trail can also be accessed for free at Hermit Gulch Campground on Avalon Canyon Road. Though this makes the trail significantly longer and steeper.

• Length: 2.5 miles.
• Time: Approximately 2-4 hours
• Difficulty: Moderate

3. Two Harbors to Parsons Landing

This is a beautiful hike alongside the coast of Catalina Island. The trail is on a wide dirt road with amazing views near seaside cliffs. The hike begins in Two Harbors and goes to Parsons Landing Campground. Each of the 8 campsites include picnic tables, fire pits, and level surfaces. If you do choose to camp, you will experience a beautiful evening on a secluded beach listening to ocean waves in the background. This is a pleasurable hike with gorgeous ocean views.

• Length: 6.6 miles.
• Time: Approximately 4-6 hours
• Difficulty: Easy

For every hike on Catalina Island, be sure to bring:

Zipeg Mac Os Catalina

• Sunscreen
• Hiking clothing
• Navigation gear
• Bagging and camping gear
• Catalina Island Map
• Water
• Hiking shoes
• Emergency kits

For a full list of Catalina Island gear guidelines, visit here.

Zipeg For Mac Catalina

There are over 165 miles of recreational roads and hiking trails on Catalina Island. Catalina Conservancy is always building additional trail heads, developing new trails, and adding more bathrooms so that visitors can embark on new and exciting adventures. There are also many hikes that anyone can take within Two Harbors and Avalon. The Catalina Island Company has city hikes that allow you to hike to a zip line and then hike back around. Once a month on Catalina Island, Recreational Equipment, Inc. (REI) hosts yoga in the morning and hiking in the afternoon. They partner with the Catalina Conservancy to create many other enjoyable island hiking experiences.

Participate in the best hiking in California and begin your dream vacation today by making a reservation on board Catalina Express!