[JBoss JIRA] (JBIDE-19028) Prefix string too short prevents EL content assist with Seam taglib
by Alexey Kazakov (JIRA)
[ https://issues.jboss.org/browse/JBIDE-19028?page=com.atlassian.jira.plugi... ]
Alexey Kazakov updated JBIDE-19028:
-----------------------------------
Fix Version/s: (was: 4.2.3.Final)
> Prefix string too short prevents EL content assist with Seam taglib
> -------------------------------------------------------------------
>
> Key: JBIDE-19028
> URL: https://issues.jboss.org/browse/JBIDE-19028
> Project: Tools (JBoss Tools)
> Issue Type: Bug
> Components: jsp/jsf/xml/html source editing, seam2
> Affects Versions: 4.2.1.Final
> Environment: Plugin: Seam Tools 3.6.1.Final-v20141209-0505-B79
> OS: Windows 8.1 64bit
> Eclipse: 4.4.1.M20140925-0400 (Luna SR1)
> JVM: 1.8.0_25 (64bit, Oracle)
> Reporter: Jiří Jansa
> Assignee: Viacheslav Kabanovich
> Fix For: 4.3.0.Alpha1
>
>
> When Seam Tools is installed in Eclipse Luna SR1, Expression Language (EL) content assist in Visual Page Editor stopped working (no suggestion at all, JBoss related or not). This occurs only when xmlns:s="http://jboss.com/products/seam/taglib" tag library is used in a Facelet page.
> Eclipse log shows following stacktrace on any such content assist attempt:
> {quote}
> org.jboss.tools.common.validation.JBTValidationException: Prefix string too short
> at org.jboss.tools.common.validation.AsYouTypeValidatorManager.validate(AsYouTypeValidatorManager.java:187)
> at org.jboss.tools.common.validation.AsYouTypeValidatorManager.validateString(AsYouTypeValidatorManager.java:205)
> at org.jboss.tools.common.validation.AsYouTypeValidatorManager.validateString(AsYouTypeValidatorManager.java:200)
> at org.jboss.tools.common.validation.AsYouTypeValidatorManager.validate(AsYouTypeValidatorManager.java:254)
> at org.eclipse.wst.sse.ui.internal.reconcile.validator.ReconcileStepForValidator.validate(ReconcileStepForValidator.java:381)
> at org.eclipse.wst.sse.ui.internal.reconcile.validator.ReconcileStepForValidator.reconcileModel(ReconcileStepForValidator.java:259)
> at org.eclipse.jface.text.reconciler.AbstractReconcileStep.reconcile(AbstractReconcileStep.java:95)
> at org.eclipse.wst.sse.ui.internal.reconcile.validator.ValidatorStrategy.reconcile(ValidatorStrategy.java:269)
> at org.eclipse.wst.sse.ui.internal.reconcile.DocumentRegionProcessor.process(DocumentRegionProcessor.java:321)
> at org.eclipse.wst.sse.ui.internal.reconcile.StructuredRegionProcessor.process(StructuredRegionProcessor.java:258)
> at org.eclipse.wst.sse.ui.internal.reconcile.DirtyRegionProcessor$BackgroundThread.run(DirtyRegionProcessor.java:691)
> Caused by: java.lang.IllegalArgumentException: Prefix string too short
> at java.io.File.createTempFile(File.java:2001)
> at org.jboss.tools.jst.web.kb.taglib.TagLibraryManager.convertUriToFile(TagLibraryManager.java:182)
> at org.jboss.tools.jst.web.kb.taglib.TagLibraryManager.getStaticTLD(TagLibraryManager.java:100)
> at org.jboss.tools.jst.web.kb.internal.StaticLibraries.getLibraries(StaticLibraries.java:44)
> at org.jboss.tools.jst.web.kb.internal.KbProject.getTagLibraries(KbProject.java:135)
> at org.jboss.tools.jst.web.kb.taglib.TagLibraryManager.getLibraries(TagLibraryManager.java:57)
> at org.jboss.tools.jst.web.kb.PageContextFactory.fillXMLNamespacesForNode(PageContextFactory.java:996)
> at org.jboss.tools.jst.web.kb.PageContextFactory.fillContextForNode(PageContextFactory.java:698)
> at org.jboss.tools.jst.web.kb.PageContextFactory.fillContextForChildNodes(PageContextFactory.java:687)
> at org.jboss.tools.jst.web.kb.PageContextFactory.createPageContext(PageContextFactory.java:431)
> at org.jboss.tools.jst.web.kb.PageContextFactory.createPageContext(PageContextFactory.java:236)
> at org.jboss.tools.jst.web.kb.PageContextFactory.createPageContext(PageContextFactory.java:199)
> at org.jboss.tools.jst.web.kb.PageContextFactory.createPageContext(PageContextFactory.java:184)
> at org.jboss.tools.jst.web.kb.internal.validation.ELValidator.validate(ELValidator.java:253)
> at org.jboss.tools.common.validation.AsYouTypeValidatorManager.validate(AsYouTypeValidatorManager.java:183)
> ... 10 more
> {quote}
> Digging more deeply into the cause, Eclipse loaded a plugin specified entry for this URI as:
> {quote}
> Entry element: URI
> Location: taglibs\tld\s.tld in jar file C:\DevTools\IDE\eclipse\eclipse-ee-luna-sr1-64bit\plugins\org.jboss.tools.seam.core_3.6.1.Final-v20141209-0505-B79.jar
> URI: jar:file:/C:/DevTools/IDE/eclipse/eclipse-ee-luna-sr1-64bit/plugins/org.jboss.tools.seam.core_3.6.1.Final-v20141209-0505-B79.jar!/taglibs/tld/s.tld
> Key type: URI
> Key: http://jboss.com/products/seam/taglib
> {quote}
> Line 182 of org.jboss.tools.jst.web.kb.taglib.TagLibraryManager shows the "too short" prefix is derived from the name of the file. Here, the culprit prefix is "s" (derived from "s.tld"). Temporary file prefix must be at least 3 characters long (javadoc: http://docs.oracle.com/javase/8/docs/api/java/io/File.html#createTempFile...).
> I managed to work around this issue temporarily by renaming s.tld and s.taglib.xml in org.jboss.tools.seam.core_3.6.1.Final-v20141209-0505-B79.jar to seam.tld and seam.taglib.tld respectively. Then I changed the entry in JAR's plugin.xml accordingly and started eclipse with "-clean" option for the changes to take effect. Now, content assist runs expectedly.
> Either renaming the plugin's TLD file or ensuring the minimum prefix length in code should do the trick.
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[JBoss JIRA] (JBIDE-19033) Prefix string too short prevents EL content assist with Seam taglib
by Alexey Kazakov (JIRA)
Alexey Kazakov created JBIDE-19033:
--------------------------------------
Summary: Prefix string too short prevents EL content assist with Seam taglib
Key: JBIDE-19033
URL: https://issues.jboss.org/browse/JBIDE-19033
Project: Tools (JBoss Tools)
Issue Type: Bug
Components: jsp/jsf/xml/html source editing, seam2
Affects Versions: 4.2.1.Final
Environment: Plugin: Seam Tools 3.6.1.Final-v20141209-0505-B79
OS: Windows 8.1 64bit
Eclipse: 4.4.1.M20140925-0400 (Luna SR1)
JVM: 1.8.0_25 (64bit, Oracle)
Reporter: Alexey Kazakov
Assignee: Viacheslav Kabanovich
Fix For: 4.2.3.Final, 4.3.0.Alpha1
When Seam Tools is installed in Eclipse Luna SR1, Expression Language (EL) content assist in Visual Page Editor stopped working (no suggestion at all, JBoss related or not). This occurs only when xmlns:s="http://jboss.com/products/seam/taglib" tag library is used in a Facelet page.
Eclipse log shows following stacktrace on any such content assist attempt:
{quote}
org.jboss.tools.common.validation.JBTValidationException: Prefix string too short
at org.jboss.tools.common.validation.AsYouTypeValidatorManager.validate(AsYouTypeValidatorManager.java:187)
at org.jboss.tools.common.validation.AsYouTypeValidatorManager.validateString(AsYouTypeValidatorManager.java:205)
at org.jboss.tools.common.validation.AsYouTypeValidatorManager.validateString(AsYouTypeValidatorManager.java:200)
at org.jboss.tools.common.validation.AsYouTypeValidatorManager.validate(AsYouTypeValidatorManager.java:254)
at org.eclipse.wst.sse.ui.internal.reconcile.validator.ReconcileStepForValidator.validate(ReconcileStepForValidator.java:381)
at org.eclipse.wst.sse.ui.internal.reconcile.validator.ReconcileStepForValidator.reconcileModel(ReconcileStepForValidator.java:259)
at org.eclipse.jface.text.reconciler.AbstractReconcileStep.reconcile(AbstractReconcileStep.java:95)
at org.eclipse.wst.sse.ui.internal.reconcile.validator.ValidatorStrategy.reconcile(ValidatorStrategy.java:269)
at org.eclipse.wst.sse.ui.internal.reconcile.DocumentRegionProcessor.process(DocumentRegionProcessor.java:321)
at org.eclipse.wst.sse.ui.internal.reconcile.StructuredRegionProcessor.process(StructuredRegionProcessor.java:258)
at org.eclipse.wst.sse.ui.internal.reconcile.DirtyRegionProcessor$BackgroundThread.run(DirtyRegionProcessor.java:691)
Caused by: java.lang.IllegalArgumentException: Prefix string too short
at java.io.File.createTempFile(File.java:2001)
at org.jboss.tools.jst.web.kb.taglib.TagLibraryManager.convertUriToFile(TagLibraryManager.java:182)
at org.jboss.tools.jst.web.kb.taglib.TagLibraryManager.getStaticTLD(TagLibraryManager.java:100)
at org.jboss.tools.jst.web.kb.internal.StaticLibraries.getLibraries(StaticLibraries.java:44)
at org.jboss.tools.jst.web.kb.internal.KbProject.getTagLibraries(KbProject.java:135)
at org.jboss.tools.jst.web.kb.taglib.TagLibraryManager.getLibraries(TagLibraryManager.java:57)
at org.jboss.tools.jst.web.kb.PageContextFactory.fillXMLNamespacesForNode(PageContextFactory.java:996)
at org.jboss.tools.jst.web.kb.PageContextFactory.fillContextForNode(PageContextFactory.java:698)
at org.jboss.tools.jst.web.kb.PageContextFactory.fillContextForChildNodes(PageContextFactory.java:687)
at org.jboss.tools.jst.web.kb.PageContextFactory.createPageContext(PageContextFactory.java:431)
at org.jboss.tools.jst.web.kb.PageContextFactory.createPageContext(PageContextFactory.java:236)
at org.jboss.tools.jst.web.kb.PageContextFactory.createPageContext(PageContextFactory.java:199)
at org.jboss.tools.jst.web.kb.PageContextFactory.createPageContext(PageContextFactory.java:184)
at org.jboss.tools.jst.web.kb.internal.validation.ELValidator.validate(ELValidator.java:253)
at org.jboss.tools.common.validation.AsYouTypeValidatorManager.validate(AsYouTypeValidatorManager.java:183)
... 10 more
{quote}
Digging more deeply into the cause, Eclipse loaded a plugin specified entry for this URI as:
{quote}
Entry element: URI
Location: taglibs\tld\s.tld in jar file C:\DevTools\IDE\eclipse\eclipse-ee-luna-sr1-64bit\plugins\org.jboss.tools.seam.core_3.6.1.Final-v20141209-0505-B79.jar
URI: jar:file:/C:/DevTools/IDE/eclipse/eclipse-ee-luna-sr1-64bit/plugins/org.jboss.tools.seam.core_3.6.1.Final-v20141209-0505-B79.jar!/taglibs/tld/s.tld
Key type: URI
Key: http://jboss.com/products/seam/taglib
{quote}
Line 182 of org.jboss.tools.jst.web.kb.taglib.TagLibraryManager shows the "too short" prefix is derived from the name of the file. Here, the culprit prefix is "s" (derived from "s.tld"). Temporary file prefix must be at least 3 characters long (javadoc: http://docs.oracle.com/javase/8/docs/api/java/io/File.html#createTempFile...).
I managed to work around this issue temporarily by renaming s.tld and s.taglib.xml in org.jboss.tools.seam.core_3.6.1.Final-v20141209-0505-B79.jar to seam.tld and seam.taglib.tld respectively. Then I changed the entry in JAR's plugin.xml accordingly and started eclipse with "-clean" option for the changes to take effect. Now, content assist runs expectedly.
Either renaming the plugin's TLD file or ensuring the minimum prefix length in code should do the trick.
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11 years, 3 months
[JBoss JIRA] (JBIDE-19033) Prefix string too short prevents EL content assist with Seam taglib
by Alexey Kazakov (JIRA)
[ https://issues.jboss.org/browse/JBIDE-19033?page=com.atlassian.jira.plugi... ]
Alexey Kazakov updated JBIDE-19033:
-----------------------------------
Fix Version/s: (was: 4.3.0.Alpha1)
> Prefix string too short prevents EL content assist with Seam taglib
> -------------------------------------------------------------------
>
> Key: JBIDE-19033
> URL: https://issues.jboss.org/browse/JBIDE-19033
> Project: Tools (JBoss Tools)
> Issue Type: Bug
> Components: jsp/jsf/xml/html source editing, seam2
> Affects Versions: 4.2.1.Final
> Environment: Plugin: Seam Tools 3.6.1.Final-v20141209-0505-B79
> OS: Windows 8.1 64bit
> Eclipse: 4.4.1.M20140925-0400 (Luna SR1)
> JVM: 1.8.0_25 (64bit, Oracle)
> Reporter: Alexey Kazakov
> Assignee: Viacheslav Kabanovich
> Fix For: 4.2.3.Final
>
>
> When Seam Tools is installed in Eclipse Luna SR1, Expression Language (EL) content assist in Visual Page Editor stopped working (no suggestion at all, JBoss related or not). This occurs only when xmlns:s="http://jboss.com/products/seam/taglib" tag library is used in a Facelet page.
> Eclipse log shows following stacktrace on any such content assist attempt:
> {quote}
> org.jboss.tools.common.validation.JBTValidationException: Prefix string too short
> at org.jboss.tools.common.validation.AsYouTypeValidatorManager.validate(AsYouTypeValidatorManager.java:187)
> at org.jboss.tools.common.validation.AsYouTypeValidatorManager.validateString(AsYouTypeValidatorManager.java:205)
> at org.jboss.tools.common.validation.AsYouTypeValidatorManager.validateString(AsYouTypeValidatorManager.java:200)
> at org.jboss.tools.common.validation.AsYouTypeValidatorManager.validate(AsYouTypeValidatorManager.java:254)
> at org.eclipse.wst.sse.ui.internal.reconcile.validator.ReconcileStepForValidator.validate(ReconcileStepForValidator.java:381)
> at org.eclipse.wst.sse.ui.internal.reconcile.validator.ReconcileStepForValidator.reconcileModel(ReconcileStepForValidator.java:259)
> at org.eclipse.jface.text.reconciler.AbstractReconcileStep.reconcile(AbstractReconcileStep.java:95)
> at org.eclipse.wst.sse.ui.internal.reconcile.validator.ValidatorStrategy.reconcile(ValidatorStrategy.java:269)
> at org.eclipse.wst.sse.ui.internal.reconcile.DocumentRegionProcessor.process(DocumentRegionProcessor.java:321)
> at org.eclipse.wst.sse.ui.internal.reconcile.StructuredRegionProcessor.process(StructuredRegionProcessor.java:258)
> at org.eclipse.wst.sse.ui.internal.reconcile.DirtyRegionProcessor$BackgroundThread.run(DirtyRegionProcessor.java:691)
> Caused by: java.lang.IllegalArgumentException: Prefix string too short
> at java.io.File.createTempFile(File.java:2001)
> at org.jboss.tools.jst.web.kb.taglib.TagLibraryManager.convertUriToFile(TagLibraryManager.java:182)
> at org.jboss.tools.jst.web.kb.taglib.TagLibraryManager.getStaticTLD(TagLibraryManager.java:100)
> at org.jboss.tools.jst.web.kb.internal.StaticLibraries.getLibraries(StaticLibraries.java:44)
> at org.jboss.tools.jst.web.kb.internal.KbProject.getTagLibraries(KbProject.java:135)
> at org.jboss.tools.jst.web.kb.taglib.TagLibraryManager.getLibraries(TagLibraryManager.java:57)
> at org.jboss.tools.jst.web.kb.PageContextFactory.fillXMLNamespacesForNode(PageContextFactory.java:996)
> at org.jboss.tools.jst.web.kb.PageContextFactory.fillContextForNode(PageContextFactory.java:698)
> at org.jboss.tools.jst.web.kb.PageContextFactory.fillContextForChildNodes(PageContextFactory.java:687)
> at org.jboss.tools.jst.web.kb.PageContextFactory.createPageContext(PageContextFactory.java:431)
> at org.jboss.tools.jst.web.kb.PageContextFactory.createPageContext(PageContextFactory.java:236)
> at org.jboss.tools.jst.web.kb.PageContextFactory.createPageContext(PageContextFactory.java:199)
> at org.jboss.tools.jst.web.kb.PageContextFactory.createPageContext(PageContextFactory.java:184)
> at org.jboss.tools.jst.web.kb.internal.validation.ELValidator.validate(ELValidator.java:253)
> at org.jboss.tools.common.validation.AsYouTypeValidatorManager.validate(AsYouTypeValidatorManager.java:183)
> ... 10 more
> {quote}
> Digging more deeply into the cause, Eclipse loaded a plugin specified entry for this URI as:
> {quote}
> Entry element: URI
> Location: taglibs\tld\s.tld in jar file C:\DevTools\IDE\eclipse\eclipse-ee-luna-sr1-64bit\plugins\org.jboss.tools.seam.core_3.6.1.Final-v20141209-0505-B79.jar
> URI: jar:file:/C:/DevTools/IDE/eclipse/eclipse-ee-luna-sr1-64bit/plugins/org.jboss.tools.seam.core_3.6.1.Final-v20141209-0505-B79.jar!/taglibs/tld/s.tld
> Key type: URI
> Key: http://jboss.com/products/seam/taglib
> {quote}
> Line 182 of org.jboss.tools.jst.web.kb.taglib.TagLibraryManager shows the "too short" prefix is derived from the name of the file. Here, the culprit prefix is "s" (derived from "s.tld"). Temporary file prefix must be at least 3 characters long (javadoc: http://docs.oracle.com/javase/8/docs/api/java/io/File.html#createTempFile...).
> I managed to work around this issue temporarily by renaming s.tld and s.taglib.xml in org.jboss.tools.seam.core_3.6.1.Final-v20141209-0505-B79.jar to seam.tld and seam.taglib.tld respectively. Then I changed the entry in JAR's plugin.xml accordingly and started eclipse with "-clean" option for the changes to take effect. Now, content assist runs expectedly.
> Either renaming the plugin's TLD file or ensuring the minimum prefix length in code should do the trick.
--
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11 years, 3 months
[JBoss JIRA] (JBIDE-19028) Prefix string too short prevents EL content assist with Seam taglib
by Viacheslav Kabanovich (JIRA)
[ https://issues.jboss.org/browse/JBIDE-19028?page=com.atlassian.jira.plugi... ]
Viacheslav Kabanovich commented on JBIDE-19028:
-----------------------------------------------
We have automatic tests XMLCatalogTest.testSeam22Lib(), XMLCatalogTest.testSeam23Lib() that should fail because of this issue when plugin org.jboss.tools.seam.core is packed to jar. However, when I run tycho tests on my computer, I find this plugin is in target/work/plugins/ as a folder, not a jar, and uri to s.tld is resolved to the existing file in this folder, so there is no need to create a temp file and wrong algorithm is bypassed. It looks like tests pass on server as well, which means that s.tld is found there in a folder. [~dgolovin], could you please check what may be the problem?
> Prefix string too short prevents EL content assist with Seam taglib
> -------------------------------------------------------------------
>
> Key: JBIDE-19028
> URL: https://issues.jboss.org/browse/JBIDE-19028
> Project: Tools (JBoss Tools)
> Issue Type: Bug
> Components: jsp/jsf/xml/html source editing, seam2
> Affects Versions: 4.2.1.Final
> Environment: Plugin: Seam Tools 3.6.1.Final-v20141209-0505-B79
> OS: Windows 8.1 64bit
> Eclipse: 4.4.1.M20140925-0400 (Luna SR1)
> JVM: 1.8.0_25 (64bit, Oracle)
> Reporter: Jiří Jansa
> Assignee: Viacheslav Kabanovich
> Fix For: 4.2.3.Final, 4.3.0.Alpha1
>
>
> When Seam Tools is installed in Eclipse Luna SR1, Expression Language (EL) content assist in Visual Page Editor stopped working (no suggestion at all, JBoss related or not). This occurs only when xmlns:s="http://jboss.com/products/seam/taglib" tag library is used in a Facelet page.
> Eclipse log shows following stacktrace on any such content assist attempt:
> {quote}
> org.jboss.tools.common.validation.JBTValidationException: Prefix string too short
> at org.jboss.tools.common.validation.AsYouTypeValidatorManager.validate(AsYouTypeValidatorManager.java:187)
> at org.jboss.tools.common.validation.AsYouTypeValidatorManager.validateString(AsYouTypeValidatorManager.java:205)
> at org.jboss.tools.common.validation.AsYouTypeValidatorManager.validateString(AsYouTypeValidatorManager.java:200)
> at org.jboss.tools.common.validation.AsYouTypeValidatorManager.validate(AsYouTypeValidatorManager.java:254)
> at org.eclipse.wst.sse.ui.internal.reconcile.validator.ReconcileStepForValidator.validate(ReconcileStepForValidator.java:381)
> at org.eclipse.wst.sse.ui.internal.reconcile.validator.ReconcileStepForValidator.reconcileModel(ReconcileStepForValidator.java:259)
> at org.eclipse.jface.text.reconciler.AbstractReconcileStep.reconcile(AbstractReconcileStep.java:95)
> at org.eclipse.wst.sse.ui.internal.reconcile.validator.ValidatorStrategy.reconcile(ValidatorStrategy.java:269)
> at org.eclipse.wst.sse.ui.internal.reconcile.DocumentRegionProcessor.process(DocumentRegionProcessor.java:321)
> at org.eclipse.wst.sse.ui.internal.reconcile.StructuredRegionProcessor.process(StructuredRegionProcessor.java:258)
> at org.eclipse.wst.sse.ui.internal.reconcile.DirtyRegionProcessor$BackgroundThread.run(DirtyRegionProcessor.java:691)
> Caused by: java.lang.IllegalArgumentException: Prefix string too short
> at java.io.File.createTempFile(File.java:2001)
> at org.jboss.tools.jst.web.kb.taglib.TagLibraryManager.convertUriToFile(TagLibraryManager.java:182)
> at org.jboss.tools.jst.web.kb.taglib.TagLibraryManager.getStaticTLD(TagLibraryManager.java:100)
> at org.jboss.tools.jst.web.kb.internal.StaticLibraries.getLibraries(StaticLibraries.java:44)
> at org.jboss.tools.jst.web.kb.internal.KbProject.getTagLibraries(KbProject.java:135)
> at org.jboss.tools.jst.web.kb.taglib.TagLibraryManager.getLibraries(TagLibraryManager.java:57)
> at org.jboss.tools.jst.web.kb.PageContextFactory.fillXMLNamespacesForNode(PageContextFactory.java:996)
> at org.jboss.tools.jst.web.kb.PageContextFactory.fillContextForNode(PageContextFactory.java:698)
> at org.jboss.tools.jst.web.kb.PageContextFactory.fillContextForChildNodes(PageContextFactory.java:687)
> at org.jboss.tools.jst.web.kb.PageContextFactory.createPageContext(PageContextFactory.java:431)
> at org.jboss.tools.jst.web.kb.PageContextFactory.createPageContext(PageContextFactory.java:236)
> at org.jboss.tools.jst.web.kb.PageContextFactory.createPageContext(PageContextFactory.java:199)
> at org.jboss.tools.jst.web.kb.PageContextFactory.createPageContext(PageContextFactory.java:184)
> at org.jboss.tools.jst.web.kb.internal.validation.ELValidator.validate(ELValidator.java:253)
> at org.jboss.tools.common.validation.AsYouTypeValidatorManager.validate(AsYouTypeValidatorManager.java:183)
> ... 10 more
> {quote}
> Digging more deeply into the cause, Eclipse loaded a plugin specified entry for this URI as:
> {quote}
> Entry element: URI
> Location: taglibs\tld\s.tld in jar file C:\DevTools\IDE\eclipse\eclipse-ee-luna-sr1-64bit\plugins\org.jboss.tools.seam.core_3.6.1.Final-v20141209-0505-B79.jar
> URI: jar:file:/C:/DevTools/IDE/eclipse/eclipse-ee-luna-sr1-64bit/plugins/org.jboss.tools.seam.core_3.6.1.Final-v20141209-0505-B79.jar!/taglibs/tld/s.tld
> Key type: URI
> Key: http://jboss.com/products/seam/taglib
> {quote}
> Line 182 of org.jboss.tools.jst.web.kb.taglib.TagLibraryManager shows the "too short" prefix is derived from the name of the file. Here, the culprit prefix is "s" (derived from "s.tld"). Temporary file prefix must be at least 3 characters long (javadoc: http://docs.oracle.com/javase/8/docs/api/java/io/File.html#createTempFile...).
> I managed to work around this issue temporarily by renaming s.tld and s.taglib.xml in org.jboss.tools.seam.core_3.6.1.Final-v20141209-0505-B79.jar to seam.tld and seam.taglib.tld respectively. Then I changed the entry in JAR's plugin.xml accordingly and started eclipse with "-clean" option for the changes to take effect. Now, content assist runs expectedly.
> Either renaming the plugin's TLD file or ensuring the minimum prefix length in code should do the trick.
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